/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.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/prod-cons.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-820ea7a [2022-02-20 03:59:01,133 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-20 03:59:01,165 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-20 03:59:01,208 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-02-20 03:59:01,228 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-20 03:59:01,230 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-20 03:59:01,231 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-20 03:59:01,233 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-20 03:59:01,234 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-20 03:59:01,235 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-20 03:59:01,236 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-20 03:59:01,241 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-20 03:59:01,242 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-20 03:59:01,243 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-20 03:59:01,245 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-20 03:59:01,246 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-20 03:59:01,251 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-20 03:59:01,258 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-20 03:59:01,259 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-20 03:59:01,259 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-20 03:59:01,260 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.epf [2022-02-20 03:59:01,284 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-20 03:59:01,284 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-20 03:59:01,284 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-20 03:59:01,284 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-20 03:59:01,285 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-20 03:59:01,285 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-20 03:59:01,285 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-20 03:59:01,285 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-20 03:59:01,286 INFO L138 SettingsManager]: * Use SBE=true [2022-02-20 03:59:01,286 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-20 03:59:01,286 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-20 03:59:01,286 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-20 03:59:01,286 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-20 03:59:01,286 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-20 03:59:01,287 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-20 03:59:01,287 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-20 03:59:01,287 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-20 03:59:01,287 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-20 03:59:01,287 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-20 03:59:01,287 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-20 03:59:01,287 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-20 03:59:01,287 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-20 03:59:01,287 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-20 03:59:01,287 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-20 03:59:01,288 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-20 03:59:01,288 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 03:59:01,288 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-20 03:59:01,288 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-02-20 03:59:01,289 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-20 03:59:01,289 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-20 03:59:01,289 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-20 03:59:01,289 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-20 03:59:01,289 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-20 03:59:01,289 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-20 03:59:01,289 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-20 03:59:01,289 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-02-20 03:59:01,289 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-20 03:59:01,487 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-20 03:59:01,503 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-20 03:59:01,505 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-20 03:59:01,506 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-02-20 03:59:01,507 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-02-20 03:59:01,508 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/prod-cons.wvr.bpl [2022-02-20 03:59:01,508 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/prod-cons.wvr.bpl' [2022-02-20 03:59:01,526 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-20 03:59:01,527 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-20 03:59:01,534 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-20 03:59:01,534 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-20 03:59:01,534 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-20 03:59:01,542 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "prod-cons.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 03:59:01" (1/1) ... [2022-02-20 03:59:01,547 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "prod-cons.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 03:59:01" (1/1) ... [2022-02-20 03:59:01,553 INFO L137 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-02-20 03:59:01,554 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-20 03:59:01,556 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-20 03:59:01,556 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-20 03:59:01,557 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-20 03:59:01,562 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "prod-cons.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 03:59:01" (1/1) ... [2022-02-20 03:59:01,562 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "prod-cons.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 03:59:01" (1/1) ... [2022-02-20 03:59:01,563 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "prod-cons.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 03:59:01" (1/1) ... [2022-02-20 03:59:01,563 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "prod-cons.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 03:59:01" (1/1) ... [2022-02-20 03:59:01,566 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "prod-cons.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 03:59:01" (1/1) ... [2022-02-20 03:59:01,568 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "prod-cons.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 03:59:01" (1/1) ... [2022-02-20 03:59:01,568 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "prod-cons.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 03:59:01" (1/1) ... [2022-02-20 03:59:01,569 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-20 03:59:01,570 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-20 03:59:01,570 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-20 03:59:01,571 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-20 03:59:01,571 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "prod-cons.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 03:59:01" (1/1) ... [2022-02-20 03:59:01,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 03:59:01,588 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 03:59:01,599 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) [2022-02-20 03:59:01,613 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 [2022-02-20 03:59:01,628 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-02-20 03:59:01,629 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-02-20 03:59:01,629 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-02-20 03:59:01,629 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-02-20 03:59:01,629 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-02-20 03:59:01,629 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-02-20 03:59:01,629 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-02-20 03:59:01,629 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-20 03:59:01,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-20 03:59:01,629 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-02-20 03:59:01,629 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-02-20 03:59:01,629 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-02-20 03:59:01,630 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-20 03:59:01,672 INFO L234 CfgBuilder]: Building ICFG [2022-02-20 03:59:01,674 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-20 03:59:01,793 INFO L275 CfgBuilder]: Performing block encoding [2022-02-20 03:59:01,805 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-20 03:59:01,805 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-20 03:59:01,810 INFO L202 PluginConnector]: Adding new model prod-cons.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 03:59:01 BoogieIcfgContainer [2022-02-20 03:59:01,810 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-20 03:59:01,811 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-20 03:59:01,811 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-20 03:59:01,814 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-20 03:59:01,815 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "prod-cons.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 03:59:01" (1/2) ... [2022-02-20 03:59:01,815 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cb2a990 and model type prod-cons.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 03:59:01, skipping insertion in model container [2022-02-20 03:59:01,816 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "prod-cons.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 03:59:01" (2/2) ... [2022-02-20 03:59:01,817 INFO L111 eAbstractionObserver]: Analyzing ICFG prod-cons.wvr.bpl [2022-02-20 03:59:01,832 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-20 03:59:01,832 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-20 03:59:01,832 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-20 03:59:01,832 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-20 03:59:01,867 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-02-20 03:59:01,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-20 03:59:01,910 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 03:59:01,912 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) [2022-02-20 03:59:01,955 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 [2022-02-20 03:59:01,960 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-20 03:59:01,970 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=true, mMcrOverapproximateWrwc=true [2022-02-20 03:59:01,970 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-02-20 03:59:02,106 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1757 transitions and produced 888 states. [2022-02-20 03:59:02,108 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-20 03:59:02,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 03:59:02,112 INFO L85 PathProgramCache]: Analyzing trace with hash 1971741920, now seen corresponding path program 1 times [2022-02-20 03:59:02,118 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 03:59:02,119 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193998371] [2022-02-20 03:59:02,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 03:59:02,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 03:59:02,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 03:59:02,340 INFO L134 CoverageAnalysis]: Checked inductivity of 899 backedges. 465 proven. 0 refuted. 0 times theorem prover too weak. 434 trivial. 0 not checked. [2022-02-20 03:59:02,341 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 03:59:02,341 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193998371] [2022-02-20 03:59:02,341 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193998371] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 03:59:02,342 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 03:59:02,342 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-20 03:59:02,343 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982240661] [2022-02-20 03:59:02,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 03:59:02,363 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-20 03:59:02,363 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 03:59:02,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-20 03:59:02,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-20 03:59:02,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 03:59:02,424 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 03:59:02,427 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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) [2022-02-20 03:59:02,427 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 03:59:02,579 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 3925 transitions and produced 1745 states. [2022-02-20 03:59:02,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 03:59:02,580 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-20 03:59:02,581 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-20 03:59:02,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 03:59:02,582 INFO L85 PathProgramCache]: Analyzing trace with hash -500126370, now seen corresponding path program 2 times [2022-02-20 03:59:02,582 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 03:59:02,582 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264179425] [2022-02-20 03:59:02,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 03:59:02,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 03:59:02,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 03:59:03,764 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 23 proven. 259 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 03:59:03,764 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 03:59:03,764 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264179425] [2022-02-20 03:59:03,764 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1264179425] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 03:59:03,764 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [111634662] [2022-02-20 03:59:03,765 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-20 03:59:03,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 03:59:03,765 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 03:59:03,766 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) [2022-02-20 03:59:03,772 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-20 03:59:03,835 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-20 03:59:03,835 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-20 03:59:03,841 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 50 conjunts are in the unsatisfiable core [2022-02-20 03:59:03,847 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 03:59:06,222 INFO L353 Elim1Store]: treesize reduction 112, result has 0.9 percent of original size [2022-02-20 03:59:06,223 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 62 treesize of output 26 [2022-02-20 03:59:06,339 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 23 proven. 259 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 03:59:06,339 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 03:59:08,150 INFO L353 Elim1Store]: treesize reduction 264, result has 47.7 percent of original size [2022-02-20 03:59:08,151 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 66 treesize of output 270 [2022-02-20 03:59:12,768 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 34 proven. 248 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 03:59:12,768 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [111634662] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 03:59:12,769 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 03:59:12,769 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 34, 34] total 95 [2022-02-20 03:59:12,769 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093028375] [2022-02-20 03:59:12,769 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 03:59:12,770 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 95 states [2022-02-20 03:59:12,770 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 03:59:12,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 95 interpolants. [2022-02-20 03:59:12,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=889, Invalid=8041, Unknown=0, NotChecked=0, Total=8930 [2022-02-20 03:59:12,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 03:59:12,774 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 03:59:12,775 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 95 states, 95 states have (on average 2.1052631578947367) internal successors, (200), 95 states have internal predecessors, (200), 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) [2022-02-20 03:59:12,775 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 03:59:12,775 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 03:59:15,754 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 253 transitions and produced 208 states. [2022-02-20 03:59:15,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 03:59:15,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-20 03:59:15,773 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-02-20 03:59:15,961 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,SelfDestructingSolverStorable1 [2022-02-20 03:59:15,962 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-20 03:59:15,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 03:59:15,963 INFO L85 PathProgramCache]: Analyzing trace with hash -764862492, now seen corresponding path program 3 times [2022-02-20 03:59:15,963 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 03:59:15,963 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224470713] [2022-02-20 03:59:15,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 03:59:15,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 03:59:15,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 03:59:16,495 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 9 proven. 118 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 03:59:16,495 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 03:59:16,495 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224470713] [2022-02-20 03:59:16,495 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224470713] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 03:59:16,495 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1946208601] [2022-02-20 03:59:16,496 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-20 03:59:16,496 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 03:59:16,496 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 03:59:16,498 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) [2022-02-20 03:59:16,499 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-20 03:59:16,535 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2022-02-20 03:59:16,535 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-20 03:59:16,536 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 38 conjunts are in the unsatisfiable core [2022-02-20 03:59:16,538 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 03:59:17,667 INFO L353 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2022-02-20 03:59:17,667 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 50 treesize of output 22 [2022-02-20 03:59:17,759 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 9 proven. 118 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 03:59:17,760 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 03:59:18,761 INFO L353 Elim1Store]: treesize reduction 156, result has 49.5 percent of original size [2022-02-20 03:59:18,762 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 53 treesize of output 177 [2022-02-20 03:59:20,276 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 33 proven. 94 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 03:59:20,276 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1946208601] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 03:59:20,276 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 03:59:20,277 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26, 26] total 71 [2022-02-20 03:59:20,277 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226284249] [2022-02-20 03:59:20,277 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 03:59:20,277 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 71 states [2022-02-20 03:59:20,277 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 03:59:20,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2022-02-20 03:59:20,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=542, Invalid=4428, Unknown=0, NotChecked=0, Total=4970 [2022-02-20 03:59:20,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 03:59:20,279 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 03:59:20,279 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 71 states, 71 states have (on average 2.1549295774647885) internal successors, (153), 71 states have internal predecessors, (153), 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) [2022-02-20 03:59:20,279 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 03:59:20,279 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2022-02-20 03:59:20,279 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 03:59:22,480 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 237 transitions and produced 191 states. [2022-02-20 03:59:22,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 03:59:22,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-02-20 03:59:22,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-20 03:59:22,496 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-02-20 03:59:22,680 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 03:59:22,681 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-20 03:59:22,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 03:59:22,681 INFO L85 PathProgramCache]: Analyzing trace with hash -1497083383, now seen corresponding path program 4 times [2022-02-20 03:59:22,682 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 03:59:22,682 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199707889] [2022-02-20 03:59:22,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 03:59:22,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 03:59:22,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 03:59:22,731 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 51 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 03:59:22,731 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 03:59:22,731 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199707889] [2022-02-20 03:59:22,731 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199707889] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 03:59:22,732 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [64414303] [2022-02-20 03:59:22,732 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-20 03:59:22,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 03:59:22,732 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 03:59:22,733 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) [2022-02-20 03:59:22,734 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-20 03:59:22,763 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-20 03:59:22,763 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-20 03:59:22,763 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 12 conjunts are in the unsatisfiable core [2022-02-20 03:59:22,765 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 03:59:22,841 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 51 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 03:59:22,841 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 03:59:22,933 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 51 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 03:59:22,933 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [64414303] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 03:59:22,933 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 03:59:22,933 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 9 [2022-02-20 03:59:22,933 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416229043] [2022-02-20 03:59:22,933 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 03:59:22,934 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-02-20 03:59:22,934 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 03:59:22,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-02-20 03:59:22,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2022-02-20 03:59:22,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 03:59:22,934 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 03:59:22,935 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 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) [2022-02-20 03:59:22,935 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 03:59:22,935 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2022-02-20 03:59:22,935 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-02-20 03:59:22,935 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 03:59:25,004 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 289 transitions and produced 237 states. [2022-02-20 03:59:25,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 03:59:25,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-02-20 03:59:25,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-02-20 03:59:25,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-20 03:59:25,032 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-02-20 03:59:25,206 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 03:59:25,206 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-20 03:59:25,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 03:59:25,207 INFO L85 PathProgramCache]: Analyzing trace with hash -1918238105, now seen corresponding path program 5 times [2022-02-20 03:59:25,207 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 03:59:25,207 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558082946] [2022-02-20 03:59:25,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 03:59:25,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 03:59:25,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 03:59:25,852 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 11 proven. 185 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 03:59:25,852 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 03:59:25,853 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558082946] [2022-02-20 03:59:25,853 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558082946] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 03:59:25,854 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [115122006] [2022-02-20 03:59:25,854 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-20 03:59:25,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 03:59:25,854 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 03:59:25,855 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) [2022-02-20 03:59:25,856 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-02-20 03:59:25,892 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2022-02-20 03:59:25,892 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-20 03:59:25,894 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 47 conjunts are in the unsatisfiable core [2022-02-20 03:59:25,899 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 03:59:27,434 INFO L353 Elim1Store]: treesize reduction 112, result has 0.9 percent of original size [2022-02-20 03:59:27,434 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 62 treesize of output 26 [2022-02-20 03:59:27,528 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 11 proven. 185 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 03:59:27,528 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 03:59:28,952 INFO L353 Elim1Store]: treesize reduction 264, result has 47.7 percent of original size [2022-02-20 03:59:28,953 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 66 treesize of output 270 [2022-02-20 03:59:33,737 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 58 proven. 138 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 03:59:33,738 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [115122006] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 03:59:33,738 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 03:59:33,738 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 31, 31] total 86 [2022-02-20 03:59:33,738 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238982663] [2022-02-20 03:59:33,738 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 03:59:33,739 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 86 states [2022-02-20 03:59:33,739 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 03:59:33,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 86 interpolants. [2022-02-20 03:59:33,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=746, Invalid=6564, Unknown=0, NotChecked=0, Total=7310 [2022-02-20 03:59:33,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 03:59:33,741 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 03:59:33,742 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 86 states, 86 states have (on average 2.1744186046511627) internal successors, (187), 86 states have internal predecessors, (187), 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) [2022-02-20 03:59:33,742 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 03:59:33,742 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2022-02-20 03:59:33,742 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2022-02-20 03:59:33,742 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-02-20 03:59:33,742 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 03:59:37,008 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 273 transitions and produced 220 states. [2022-02-20 03:59:37,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 03:59:37,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-02-20 03:59:37,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-02-20 03:59:37,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-20 03:59:37,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-02-20 03:59:37,025 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-02-20 03:59:37,223 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 03:59:37,223 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-20 03:59:37,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 03:59:37,224 INFO L85 PathProgramCache]: Analyzing trace with hash -664923614, now seen corresponding path program 6 times [2022-02-20 03:59:37,224 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 03:59:37,224 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951449218] [2022-02-20 03:59:37,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 03:59:37,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 03:59:37,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 03:59:37,915 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 03:59:37,916 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 03:59:37,916 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951449218] [2022-02-20 03:59:37,916 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951449218] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 03:59:37,916 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1010171892] [2022-02-20 03:59:37,916 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-02-20 03:59:37,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 03:59:37,916 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 03:59:37,917 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) [2022-02-20 03:59:37,918 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-02-20 03:59:37,952 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2022-02-20 03:59:37,952 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-20 03:59:37,953 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 55 conjunts are in the unsatisfiable core [2022-02-20 03:59:37,954 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 03:59:39,539 INFO L353 Elim1Store]: treesize reduction 170, result has 0.6 percent of original size [2022-02-20 03:59:39,539 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 74 treesize of output 30 [2022-02-20 03:59:39,675 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 03:59:39,675 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 03:59:41,516 INFO L353 Elim1Store]: treesize reduction 400, result has 46.6 percent of original size [2022-02-20 03:59:41,517 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 12 select indices, 12 select index equivalence classes, 0 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 66 case distinctions, treesize of input 78 treesize of output 382 [2022-02-20 03:59:53,282 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 57 proven. 83 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 03:59:53,282 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1010171892] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 03:59:53,282 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 03:59:53,282 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 32, 31] total 87 [2022-02-20 03:59:53,282 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278779831] [2022-02-20 03:59:53,282 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 03:59:53,283 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 87 states [2022-02-20 03:59:53,283 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 03:59:53,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 87 interpolants. [2022-02-20 03:59:53,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=826, Invalid=6656, Unknown=0, NotChecked=0, Total=7482 [2022-02-20 03:59:53,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 03:59:53,285 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 03:59:53,285 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 87 states, 87 states have (on average 1.8620689655172413) internal successors, (162), 87 states have internal predecessors, (162), 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) [2022-02-20 03:59:53,286 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 03:59:53,286 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2022-02-20 03:59:53,286 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2022-02-20 03:59:53,286 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-02-20 03:59:53,286 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2022-02-20 03:59:53,286 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 04:00:00,136 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 322 transitions and produced 265 states. [2022-02-20 04:00:00,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 04:00:00,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-02-20 04:00:00,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-02-20 04:00:00,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-20 04:00:00,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-02-20 04:00:00,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-02-20 04:00:00,153 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-02-20 04:00:00,337 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 04:00:00,338 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-20 04:00:00,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 04:00:00,338 INFO L85 PathProgramCache]: Analyzing trace with hash -581026131, now seen corresponding path program 7 times [2022-02-20 04:00:00,338 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 04:00:00,338 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157558598] [2022-02-20 04:00:00,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 04:00:00,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 04:00:00,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 04:00:01,389 INFO L134 CoverageAnalysis]: Checked inductivity of 268 backedges. 9 proven. 259 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 04:00:01,389 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 04:00:01,389 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157558598] [2022-02-20 04:00:01,389 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157558598] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 04:00:01,389 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [585957325] [2022-02-20 04:00:01,390 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-02-20 04:00:01,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 04:00:01,390 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 04:00:01,391 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) [2022-02-20 04:00:01,392 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-02-20 04:00:01,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 04:00:01,430 INFO L263 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 64 conjunts are in the unsatisfiable core [2022-02-20 04:00:01,432 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 04:00:03,971 INFO L353 Elim1Store]: treesize reduction 252, result has 0.4 percent of original size [2022-02-20 04:00:03,972 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 90 treesize of output 34 [2022-02-20 04:00:04,090 INFO L134 CoverageAnalysis]: Checked inductivity of 268 backedges. 9 proven. 259 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 04:00:04,090 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 04:00:06,904 INFO L353 Elim1Store]: treesize reduction 564, result has 45.8 percent of original size [2022-02-20 04:00:06,905 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 14 select indices, 14 select index equivalence classes, 0 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 91 case distinctions, treesize of input 92 treesize of output 516 [2022-02-20 04:01:11,228 INFO L134 CoverageAnalysis]: Checked inductivity of 268 backedges. 75 proven. 193 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 04:01:11,228 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [585957325] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 04:01:11,228 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 04:01:11,229 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 38, 38] total 107 [2022-02-20 04:01:11,229 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596513528] [2022-02-20 04:01:11,229 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 04:01:11,229 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 107 states [2022-02-20 04:01:11,229 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 04:01:11,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 107 interpolants. [2022-02-20 04:01:11,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1048, Invalid=10294, Unknown=0, NotChecked=0, Total=11342 [2022-02-20 04:01:11,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 04:01:11,232 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 04:01:11,232 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 107 states, 107 states have (on average 1.9345794392523366) internal successors, (207), 107 states have internal predecessors, (207), 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) [2022-02-20 04:01:11,232 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 04:01:11,232 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2022-02-20 04:01:11,232 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2022-02-20 04:01:11,232 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-02-20 04:01:11,232 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2022-02-20 04:01:11,232 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2022-02-20 04:01:11,232 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 04:01:16,383 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 306 transitions and produced 248 states. [2022-02-20 04:01:16,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 04:01:16,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-02-20 04:01:16,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-02-20 04:01:16,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-20 04:01:16,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-02-20 04:01:16,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-02-20 04:01:16,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-02-20 04:01:16,400 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-02-20 04:01:16,584 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 04:01:16,584 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-20 04:01:16,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 04:01:16,585 INFO L85 PathProgramCache]: Analyzing trace with hash 2042485416, now seen corresponding path program 8 times [2022-02-20 04:01:16,585 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 04:01:16,585 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673150695] [2022-02-20 04:01:16,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 04:01:16,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 04:01:16,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 04:01:16,674 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 117 proven. 92 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 04:01:16,674 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 04:01:16,675 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673150695] [2022-02-20 04:01:16,675 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673150695] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 04:01:16,675 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1931528555] [2022-02-20 04:01:16,675 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-20 04:01:16,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 04:01:16,675 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 04:01:16,676 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) [2022-02-20 04:01:16,703 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-02-20 04:01:16,737 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-20 04:01:16,742 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-20 04:01:16,744 INFO L263 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 18 conjunts are in the unsatisfiable core [2022-02-20 04:01:16,745 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 04:01:16,842 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 117 proven. 92 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 04:01:16,843 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 04:01:16,946 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 117 proven. 92 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 04:01:16,946 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1931528555] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 04:01:16,946 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 04:01:16,946 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 11] total 12 [2022-02-20 04:01:16,947 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785703886] [2022-02-20 04:01:16,947 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 04:01:16,947 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-02-20 04:01:16,947 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 04:01:16,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-02-20 04:01:16,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-02-20 04:01:16,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 04:01:16,948 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 04:01:16,948 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.333333333333333) internal successors, (76), 12 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 04:01:16,948 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 04:01:16,948 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2022-02-20 04:01:16,948 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2022-02-20 04:01:16,948 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-02-20 04:01:16,948 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2022-02-20 04:01:16,948 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 52 states. [2022-02-20 04:01:16,948 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 53 states. [2022-02-20 04:01:16,948 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 04:01:20,572 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 358 transitions and produced 294 states. [2022-02-20 04:01:20,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 04:01:20,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-02-20 04:01:20,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-02-20 04:01:20,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-20 04:01:20,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-02-20 04:01:20,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-02-20 04:01:20,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2022-02-20 04:01:20,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-02-20 04:01:20,591 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-02-20 04:01:20,775 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,SelfDestructingSolverStorable7 [2022-02-20 04:01:20,776 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-20 04:01:20,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 04:01:20,776 INFO L85 PathProgramCache]: Analyzing trace with hash 1463841534, now seen corresponding path program 9 times [2022-02-20 04:01:20,776 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 04:01:20,776 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859986924] [2022-02-20 04:01:20,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 04:01:20,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 04:01:20,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 04:01:22,081 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 11 proven. 353 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 04:01:22,082 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 04:01:22,082 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859986924] [2022-02-20 04:01:22,082 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859986924] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 04:01:22,082 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1059261480] [2022-02-20 04:01:22,082 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-20 04:01:22,082 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 04:01:22,082 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 04:01:22,083 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) [2022-02-20 04:01:22,084 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-02-20 04:01:22,125 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 14 check-sat command(s) [2022-02-20 04:01:22,125 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-20 04:01:22,126 INFO L263 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 83 conjunts are in the unsatisfiable core [2022-02-20 04:01:22,128 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 04:01:25,898 INFO L353 Elim1Store]: treesize reduction 322, result has 0.3 percent of original size [2022-02-20 04:01:25,898 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 98 treesize of output 38 [2022-02-20 04:01:26,029 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 364 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 04:01:26,030 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 04:01:30,190 INFO L353 Elim1Store]: treesize reduction 756, result has 45.3 percent of original size [2022-02-20 04:01:30,191 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 16 select indices, 16 select index equivalence classes, 0 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 104 treesize of output 668 [2022-02-20 04:06:33,291 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 118 proven. 246 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 04:06:33,291 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1059261480] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 04:06:33,291 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 04:06:33,292 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 48, 43] total 127 [2022-02-20 04:06:33,292 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187423150] [2022-02-20 04:06:33,292 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 04:06:33,292 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 127 states [2022-02-20 04:06:33,292 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 04:06:33,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 127 interpolants. [2022-02-20 04:06:33,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1414, Invalid=14588, Unknown=0, NotChecked=0, Total=16002 [2022-02-20 04:06:33,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 04:06:33,295 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 04:06:33,296 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 127 states, 127 states have (on average 1.8425196850393701) internal successors, (234), 127 states have internal predecessors, (234), 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) [2022-02-20 04:06:33,296 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 04:06:33,296 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2022-02-20 04:06:33,296 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2022-02-20 04:06:33,296 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-02-20 04:06:33,296 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2022-02-20 04:06:33,296 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 52 states. [2022-02-20 04:06:33,296 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 85 states. [2022-02-20 04:06:33,296 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-02-20 04:06:33,296 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 04:06:42,572 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 381 transitions and produced 313 states. [2022-02-20 04:06:42,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 04:06:42,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-02-20 04:06:42,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-02-20 04:06:42,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-20 04:06:42,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-02-20 04:06:42,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-02-20 04:06:42,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2022-02-20 04:06:42,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-02-20 04:06:42,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-02-20 04:06:42,597 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-02-20 04:06:42,781 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 04:06:42,781 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-20 04:06:42,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 04:06:42,781 INFO L85 PathProgramCache]: Analyzing trace with hash 1966625959, now seen corresponding path program 10 times [2022-02-20 04:06:42,782 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 04:06:42,782 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403634254] [2022-02-20 04:06:42,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 04:06:42,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 04:06:42,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 04:06:44,367 INFO L134 CoverageAnalysis]: Checked inductivity of 432 backedges. 11 proven. 421 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 04:06:44,367 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 04:06:44,368 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403634254] [2022-02-20 04:06:44,368 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403634254] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 04:06:44,368 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2034168322] [2022-02-20 04:06:44,368 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-20 04:06:44,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 04:06:44,368 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 04:06:44,369 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) [2022-02-20 04:06:44,370 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-02-20 04:06:44,409 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-20 04:06:44,410 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-20 04:06:44,411 INFO L263 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 81 conjunts are in the unsatisfiable core [2022-02-20 04:06:44,412 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 04:06:48,516 INFO L353 Elim1Store]: treesize reduction 432, result has 0.2 percent of original size [2022-02-20 04:06:48,516 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 114 treesize of output 42 [2022-02-20 04:06:48,652 INFO L134 CoverageAnalysis]: Checked inductivity of 432 backedges. 11 proven. 421 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 04:06:48,653 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 04:06:54,093 INFO L353 Elim1Store]: treesize reduction 976, result has 44.8 percent of original size [2022-02-20 04:06:54,094 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 18 select indices, 18 select index equivalence classes, 0 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 153 case distinctions, treesize of input 118 treesize of output 842 [2022-02-20 04:08:27,786 INFO L134 CoverageAnalysis]: Checked inductivity of 432 backedges. 144 proven. 288 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 04:08:27,786 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2034168322] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 04:08:27,787 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 04:08:27,787 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 47, 47] total 134 [2022-02-20 04:08:27,787 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933111200] [2022-02-20 04:08:27,787 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 04:08:27,787 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 134 states [2022-02-20 04:08:27,787 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 04:08:27,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 134 interpolants. [2022-02-20 04:08:27,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1570, Invalid=16252, Unknown=0, NotChecked=0, Total=17822 [2022-02-20 04:08:27,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 04:08:27,790 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 04:08:27,790 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 134 states, 134 states have (on average 1.8805970149253732) internal successors, (252), 134 states have internal predecessors, (252), 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) [2022-02-20 04:08:27,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 04:08:27,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2022-02-20 04:08:27,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2022-02-20 04:08:27,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-02-20 04:08:27,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2022-02-20 04:08:27,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 52 states. [2022-02-20 04:08:27,791 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 85 states. [2022-02-20 04:08:27,791 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-02-20 04:08:27,791 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2022-02-20 04:08:27,791 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 04:08:37,584 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 365 transitions and produced 296 states. [2022-02-20 04:08:37,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 04:08:37,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-02-20 04:08:37,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-02-20 04:08:37,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-20 04:08:37,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-02-20 04:08:37,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-02-20 04:08:37,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2022-02-20 04:08:37,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-02-20 04:08:37,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2022-02-20 04:08:37,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-02-20 04:08:37,601 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2022-02-20 04:08:37,799 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,SelfDestructingSolverStorable9 [2022-02-20 04:08:37,800 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-20 04:08:37,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 04:08:37,801 INFO L85 PathProgramCache]: Analyzing trace with hash 1236206562, now seen corresponding path program 11 times [2022-02-20 04:08:37,801 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 04:08:37,801 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893466527] [2022-02-20 04:08:37,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 04:08:37,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 04:08:37,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 04:08:39,468 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 0 proven. 352 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 04:08:39,469 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 04:08:39,469 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893466527] [2022-02-20 04:08:39,469 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893466527] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 04:08:39,469 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [16952612] [2022-02-20 04:08:39,469 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-20 04:08:39,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 04:08:39,469 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 04:08:39,470 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) [2022-02-20 04:08:39,471 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-02-20 04:08:39,520 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 12 check-sat command(s) [2022-02-20 04:08:39,520 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-20 04:08:39,522 INFO L263 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 86 conjunts are in the unsatisfiable core [2022-02-20 04:08:39,524 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 04:08:44,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:08:44,717 INFO L244 Elim1Store]: Index analysis took 117 ms [2022-02-20 04:08:45,086 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-20 04:08:45,086 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 20 select indices, 20 select index equivalence classes, 135 disjoint index pairs (out of 190 index pairs), introduced 20 new quantified variables, introduced 55 case distinctions, treesize of input 122 treesize of output 684 [2022-02-20 04:09:20,887 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 0 proven. 352 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 04:09:20,887 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 04:09:49,133 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,133 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,134 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,134 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,134 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,135 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,135 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,135 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,136 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,137 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,137 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,137 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,138 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,138 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,138 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,139 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,139 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,140 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,141 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,141 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,141 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,142 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,142 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,142 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,142 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,143 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,143 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,143 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,144 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,144 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,145 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,145 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,145 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,146 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,147 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,147 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,147 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,149 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,151 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,151 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,151 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,154 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,154 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,154 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,155 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,156 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,156 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,156 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,157 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,157 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,160 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,160 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,161 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,161 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,161 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,162 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,163 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,164 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,165 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,165 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,166 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,167 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,167 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,167 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,169 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,170 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,171 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,171 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,171 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,173 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,175 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,175 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,176 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,176 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,176 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,177 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,177 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,178 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,178 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,180 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,180 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,181 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,181 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,181 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,181 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,182 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,183 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,183 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,183 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,184 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,184 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,184 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,185 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,187 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,187 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,187 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,188 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,188 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,188 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,189 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,191 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,191 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,191 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,192 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,192 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,192 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,194 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,195 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,195 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,195 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,196 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,196 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,196 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,197 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,198 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,198 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,198 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,199 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,200 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,200 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,200 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,200 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,201 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,201 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,201 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,202 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,202 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,204 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,204 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,204 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,205 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,206 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,206 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,208 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,208 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:09:49,581 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-20 04:09:49,582 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 20 select indices, 20 select index equivalence classes, 135 disjoint index pairs (out of 190 index pairs), introduced 20 new quantified variables, introduced 55 case distinctions, treesize of input 131 treesize of output 693 [2022-02-20 04:10:17,432 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 0 proven. 352 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 04:10:17,432 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [16952612] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 04:10:17,432 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 04:10:17,432 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 49, 49] total 138 [2022-02-20 04:10:17,433 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781802994] [2022-02-20 04:10:17,433 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 04:10:17,433 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 138 states [2022-02-20 04:10:17,433 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 04:10:17,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 138 interpolants. [2022-02-20 04:10:17,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2800, Invalid=16101, Unknown=5, NotChecked=0, Total=18906 [2022-02-20 04:10:17,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 04:10:17,435 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 04:10:17,435 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 138 states, 138 states have (on average 1.6956521739130435) internal successors, (234), 138 states have internal predecessors, (234), 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) [2022-02-20 04:10:17,435 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 04:10:17,435 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2022-02-20 04:10:17,435 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2022-02-20 04:10:17,435 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-02-20 04:10:17,435 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2022-02-20 04:10:17,435 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 52 states. [2022-02-20 04:10:17,435 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 85 states. [2022-02-20 04:10:17,435 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-02-20 04:10:17,435 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 98 states. [2022-02-20 04:10:17,435 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 68 states. [2022-02-20 04:10:17,435 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 04:10:32,318 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 456 transitions and produced 359 states. [2022-02-20 04:10:32,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 04:10:32,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-02-20 04:10:32,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-02-20 04:10:32,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-20 04:10:32,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-02-20 04:10:32,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-02-20 04:10:32,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2022-02-20 04:10:32,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-02-20 04:10:32,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2022-02-20 04:10:32,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2022-02-20 04:10:32,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2022-02-20 04:10:32,336 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2022-02-20 04:10:32,531 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,SelfDestructingSolverStorable10 [2022-02-20 04:10:32,532 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-20 04:10:32,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 04:10:32,532 INFO L85 PathProgramCache]: Analyzing trace with hash -1443174487, now seen corresponding path program 12 times [2022-02-20 04:10:32,532 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 04:10:32,532 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917626433] [2022-02-20 04:10:32,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 04:10:32,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 04:10:32,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 04:10:35,151 INFO L134 CoverageAnalysis]: Checked inductivity of 586 backedges. 9 proven. 577 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 04:10:35,152 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 04:10:35,152 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917626433] [2022-02-20 04:10:35,152 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917626433] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 04:10:35,152 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [367116898] [2022-02-20 04:10:35,152 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-02-20 04:10:35,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 04:10:35,152 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 04:10:35,153 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-20 04:10:35,154 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-02-20 04:10:35,206 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 17 check-sat command(s) [2022-02-20 04:10:35,206 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-20 04:10:35,208 INFO L263 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 102 conjunts are in the unsatisfiable core [2022-02-20 04:10:35,210 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 04:10:42,457 INFO L353 Elim1Store]: treesize reduction 770, result has 0.1 percent of original size [2022-02-20 04:10:42,458 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 12 select indices, 12 select index equivalence classes, 0 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 66 case distinctions, treesize of input 146 treesize of output 54 [2022-02-20 04:10:42,635 INFO L134 CoverageAnalysis]: Checked inductivity of 586 backedges. 9 proven. 577 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 04:10:42,635 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 04:10:55,562 WARN L228 SmtUtils]: Spent 6.48s on a formula simplification. DAG size of input: 1164 DAG size of output: 636 (called from [L 350] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-02-20 04:10:55,563 INFO L353 Elim1Store]: treesize reduction 1804, result has 44.0 percent of original size [2022-02-20 04:10:55,564 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 24 select indices, 24 select index equivalence classes, 0 disjoint index pairs (out of 276 index pairs), introduced 24 new quantified variables, introduced 276 case distinctions, treesize of input 157 treesize of output 1481 Received shutdown request... [2022-02-20 04:12:15,263 WARN L244 SmtUtils]: Removed 2 from assertion stack [2022-02-20 04:12:15,264 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (3 of 4 remaining) [2022-02-20 04:12:15,266 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 [2022-02-20 04:12:15,266 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 [2022-02-20 04:12:15,267 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-02-20 04:12:15,281 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2022-02-20 04:12:15,465 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-02-20 04:12:15,467 WARN L594 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 104 with TraceHistMax 16,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 23ms.. [2022-02-20 04:12:15,469 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-02-20 04:12:15,469 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-02-20 04:12:15,469 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-02-20 04:12:15,472 INFO L732 BasicCegarLoop]: Path program histogram: [12] [2022-02-20 04:12:15,474 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-20 04:12:15,474 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-20 04:12:15,475 INFO L202 PluginConnector]: Adding new model prod-cons.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.02 04:12:15 BasicIcfg [2022-02-20 04:12:15,475 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-20 04:12:15,475 INFO L158 Benchmark]: Toolchain (without parser) took 793948.27ms. Allocated memory was 203.4MB in the beginning and 571.5MB in the end (delta: 368.1MB). Free memory was 162.3MB in the beginning and 152.2MB in the end (delta: 10.1MB). Peak memory consumption was 419.3MB. Max. memory is 8.0GB. [2022-02-20 04:12:15,475 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.09ms. Allocated memory is still 203.4MB. Free memory is still 163.4MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-20 04:12:15,476 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.50ms. Allocated memory is still 203.4MB. Free memory was 162.3MB in the beginning and 160.7MB in the end (delta: 1.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-02-20 04:12:15,476 INFO L158 Benchmark]: Boogie Preprocessor took 12.98ms. Allocated memory is still 203.4MB. Free memory was 160.7MB in the beginning and 159.7MB in the end (delta: 976.3kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-20 04:12:15,476 INFO L158 Benchmark]: RCFGBuilder took 239.65ms. Allocated memory is still 203.4MB. Free memory was 159.7MB in the beginning and 150.4MB in the end (delta: 9.3MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-02-20 04:12:15,476 INFO L158 Benchmark]: TraceAbstraction took 793663.85ms. Allocated memory was 203.4MB in the beginning and 571.5MB in the end (delta: 368.1MB). Free memory was 149.9MB in the beginning and 152.2MB in the end (delta: -2.3MB). Peak memory consumption was 405.7MB. Max. memory is 8.0GB. [2022-02-20 04:12:15,477 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 0.09ms. Allocated memory is still 203.4MB. Free memory is still 163.4MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 20.50ms. Allocated memory is still 203.4MB. Free memory was 162.3MB in the beginning and 160.7MB in the end (delta: 1.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 12.98ms. Allocated memory is still 203.4MB. Free memory was 160.7MB in the beginning and 159.7MB in the end (delta: 976.3kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 239.65ms. Allocated memory is still 203.4MB. Free memory was 159.7MB in the beginning and 150.4MB in the end (delta: 9.3MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 793663.85ms. Allocated memory was 203.4MB in the beginning and 571.5MB in the end (delta: 368.1MB). Free memory was 149.9MB in the beginning and 152.2MB in the end (delta: -2.3MB). Peak memory consumption was 405.7MB. 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: 64]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PartialOrderCegarLoop was analyzing trace of length 104 with TraceHistMax 16,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 23ms.. - TimeoutResultAtElement [Line: 58]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 104 with TraceHistMax 16,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 23ms.. - TimeoutResultAtElement [Line: 57]: 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 104 with TraceHistMax 16,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 23ms.. - TimeoutResultAtElement [Line: 57]: 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 104 with TraceHistMax 16,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 23ms.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 45 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 793.6s, OverallIterations: 12, TraceHistogramMax: 0, PathProgramHistogramMax: 12, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 60.4s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 611, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 627.2s InterpolantComputationTime, 1551 NumberOfCodeBlocks, 1551 NumberOfCodeBlocksAsserted, 72 NumberOfCheckSat, 2238 ConstructedInterpolants, 35 QuantifiedInterpolants, 62760 SizeOfPredicates, 139 NumberOfNonLiveVariables, 1828 ConjunctsInSsa, 534 ConjunctsInUnsatCore, 31 InterpolantComputations, 1 PerfectInterpolantSequences, 2059/8267 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