/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-MCRwithoutDepranks-Lazy.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/queue-add-3-nl.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-04 12:06:57,304 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-04 12:06:57,306 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-04 12:06:57,358 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-04 12:06:57,358 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-04 12:06:57,361 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-04 12:06:57,363 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-04 12:06:57,366 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-04 12:06:57,367 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-04 12:06:57,371 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-04 12:06:57,372 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-04 12:06:57,373 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-04 12:06:57,373 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-04 12:06:57,375 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-04 12:06:57,376 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-04 12:06:57,379 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-04 12:06:57,379 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-04 12:06:57,380 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-04 12:06:57,382 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-04 12:06:57,386 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-04 12:06:57,387 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-04 12:06:57,388 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-04 12:06:57,390 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-04 12:06:57,390 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-04 12:06:57,396 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-04 12:06:57,404 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-04 12:06:57,404 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-04 12:06:57,405 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-04 12:06:57,406 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-MCRwithoutDepranks-Lazy.epf [2022-03-04 12:06:57,435 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-04 12:06:57,435 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-04 12:06:57,436 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-04 12:06:57,436 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-04 12:06:57,437 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-04 12:06:57,437 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-04 12:06:57,437 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-04 12:06:57,437 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-04 12:06:57,438 INFO L138 SettingsManager]: * Use SBE=true [2022-03-04 12:06:57,438 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-04 12:06:57,438 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-04 12:06:57,439 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-04 12:06:57,439 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-04 12:06:57,439 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-04 12:06:57,439 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-04 12:06:57,439 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-04 12:06:57,439 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-04 12:06:57,440 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-04 12:06:57,440 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-04 12:06:57,440 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-04 12:06:57,440 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-04 12:06:57,440 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-04 12:06:57,440 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-04 12:06:57,440 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-04 12:06:57,441 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-04 12:06:57,441 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-04 12:06:57,441 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-04 12:06:57,441 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-04 12:06:57,441 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-04 12:06:57,441 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-04 12:06:57,441 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-04 12:06:57,442 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-04 12:06:57,442 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-04 12:06:57,442 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-04 12:06:57,442 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-04 12:06:57,442 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITHOUT_DEPRANKS [2022-03-04 12:06:57,442 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-04 12:06:57,664 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-04 12:06:57,681 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-04 12:06:57,683 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-04 12:06:57,684 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-04 12:06:57,685 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-04 12:06:57,686 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/queue-add-3-nl.wvr.bpl [2022-03-04 12:06:57,686 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/queue-add-3-nl.wvr.bpl' [2022-03-04 12:06:57,708 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-04 12:06:57,709 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-04 12:06:57,710 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-04 12:06:57,710 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-04 12:06:57,710 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-04 12:06:57,720 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "queue-add-3-nl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 12:06:57" (1/1) ... [2022-03-04 12:06:57,727 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "queue-add-3-nl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 12:06:57" (1/1) ... [2022-03-04 12:06:57,733 INFO L137 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-04 12:06:57,734 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-04 12:06:57,735 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-04 12:06:57,735 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-04 12:06:57,735 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-04 12:06:57,742 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "queue-add-3-nl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 12:06:57" (1/1) ... [2022-03-04 12:06:57,743 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "queue-add-3-nl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 12:06:57" (1/1) ... [2022-03-04 12:06:57,744 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "queue-add-3-nl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 12:06:57" (1/1) ... [2022-03-04 12:06:57,744 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "queue-add-3-nl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 12:06:57" (1/1) ... [2022-03-04 12:06:57,748 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "queue-add-3-nl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 12:06:57" (1/1) ... [2022-03-04 12:06:57,750 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "queue-add-3-nl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 12:06:57" (1/1) ... [2022-03-04 12:06:57,751 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "queue-add-3-nl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 12:06:57" (1/1) ... [2022-03-04 12:06:57,752 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-04 12:06:57,753 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-04 12:06:57,753 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-04 12:06:57,753 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-04 12:06:57,759 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "queue-add-3-nl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 12:06:57" (1/1) ... [2022-03-04 12:06:57,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-04 12:06:57,770 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 12:06:57,781 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-04 12:06:57,790 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-04 12:06:57,811 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-03-04 12:06:57,811 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-04 12:06:57,811 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-04 12:06:57,811 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-03-04 12:06:57,811 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-04 12:06:57,811 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-04 12:06:57,811 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-04 12:06:57,812 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-04 12:06:57,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-04 12:06:57,812 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-03-04 12:06:57,812 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-03-04 12:06:57,812 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-03-04 12:06:57,813 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-04 12:06:57,855 INFO L234 CfgBuilder]: Building ICFG [2022-03-04 12:06:57,856 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-04 12:06:57,946 INFO L275 CfgBuilder]: Performing block encoding [2022-03-04 12:06:57,964 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-04 12:06:57,964 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-04 12:06:57,966 INFO L202 PluginConnector]: Adding new model queue-add-3-nl.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.03 12:06:57 BoogieIcfgContainer [2022-03-04 12:06:57,966 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-04 12:06:57,968 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-04 12:06:57,968 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-04 12:06:57,985 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-04 12:06:57,986 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "queue-add-3-nl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 12:06:57" (1/2) ... [2022-03-04 12:06:57,986 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@585e21d1 and model type queue-add-3-nl.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 12:06:57, skipping insertion in model container [2022-03-04 12:06:57,987 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "queue-add-3-nl.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.03 12:06:57" (2/2) ... [2022-03-04 12:06:57,988 INFO L111 eAbstractionObserver]: Analyzing ICFG queue-add-3-nl.wvr.bpl [2022-03-04 12:06:57,992 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-04 12:06:57,994 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-04 12:06:57,994 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-04 12:06:57,994 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-04 12:06:58,062 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-03-04 12:06:58,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-04 12:06:58,112 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 12:06:58,113 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-03-04 12:06:58,129 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-03-04 12:06:58,153 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-04 12:06:58,159 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 [2022-03-04 12:06:58,159 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-03-04 12:06:59,538 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2577 transitions and produced 2433 states. [2022-03-04 12:06:59,540 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 12:06:59,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 12:06:59,545 INFO L85 PathProgramCache]: Analyzing trace with hash -2064482869, now seen corresponding path program 1 times [2022-03-04 12:06:59,553 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 12:06:59,554 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605620594] [2022-03-04 12:06:59,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 12:06:59,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 12:07:00,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 12:07:02,649 INFO L134 CoverageAnalysis]: Checked inductivity of 57944 backedges. 19141 proven. 33464 refuted. 0 times theorem prover too weak. 5339 trivial. 0 not checked. [2022-03-04 12:07:02,649 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 12:07:02,650 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605620594] [2022-03-04 12:07:02,650 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605620594] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 12:07:02,651 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1106139008] [2022-03-04 12:07:02,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 12:07:02,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 12:07:02,651 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 12:07:02,653 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 12:07:02,654 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-04 12:07:03,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 12:07:03,039 INFO L263 TraceCheckSpWp]: Trace formula consists of 1783 conjuncts, 22 conjunts are in the unsatisfiable core [2022-03-04 12:07:03,060 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 12:07:05,213 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2022-03-04 12:07:05,365 INFO L134 CoverageAnalysis]: Checked inductivity of 57944 backedges. 2334 proven. 45877 refuted. 0 times theorem prover too weak. 9733 trivial. 0 not checked. [2022-03-04 12:07:05,365 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 12:07:06,723 INFO L353 Elim1Store]: treesize reduction 5, result has 50.0 percent of original size [2022-03-04 12:07:06,723 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 13 [2022-03-04 12:07:07,243 INFO L134 CoverageAnalysis]: Checked inductivity of 57944 backedges. 4078 proven. 44133 refuted. 0 times theorem prover too weak. 9733 trivial. 0 not checked. [2022-03-04 12:07:07,244 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1106139008] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 12:07:07,244 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 12:07:07,244 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 13, 13] total 36 [2022-03-04 12:07:07,246 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449466622] [2022-03-04 12:07:07,247 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 12:07:07,255 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2022-03-04 12:07:07,256 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 12:07:07,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2022-03-04 12:07:07,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=1257, Unknown=0, NotChecked=0, Total=1332 [2022-03-04 12:07:07,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 12:07:07,278 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 12:07:07,280 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 8.18918918918919) internal successors, (303), 36 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-04 12:07:07,281 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 12:07:11,031 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 4754 transitions and produced 4454 states. [2022-03-04 12:07:11,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-04 12:07:11,062 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-04 12:07:11,255 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-03-04 12:07:11,256 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 12:07:11,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 12:07:11,257 INFO L85 PathProgramCache]: Analyzing trace with hash -358405667, now seen corresponding path program 2 times [2022-03-04 12:07:11,257 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 12:07:11,257 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887992118] [2022-03-04 12:07:11,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 12:07:11,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 12:07:13,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 12:07:15,551 INFO L134 CoverageAnalysis]: Checked inductivity of 198324 backedges. 52881 proven. 134780 refuted. 0 times theorem prover too weak. 10663 trivial. 0 not checked. [2022-03-04 12:07:15,551 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 12:07:15,551 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887992118] [2022-03-04 12:07:15,552 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887992118] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 12:07:15,552 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1365334869] [2022-03-04 12:07:15,552 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-04 12:07:15,552 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 12:07:15,552 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 12:07:15,556 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 12:07:15,562 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-04 12:07:16,222 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-04 12:07:16,222 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 12:07:16,298 INFO L263 TraceCheckSpWp]: Trace formula consists of 3306 conjuncts, 672 conjunts are in the unsatisfiable core [2022-03-04 12:07:16,326 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 12:07:56,784 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-03-04 12:07:57,413 INFO L134 CoverageAnalysis]: Checked inductivity of 198324 backedges. 52881 proven. 140168 refuted. 0 times theorem prover too weak. 5275 trivial. 0 not checked. [2022-03-04 12:07:57,413 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 12:08:04,030 INFO L353 Elim1Store]: treesize reduction 5, result has 50.0 percent of original size [2022-03-04 12:08:04,031 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 14 [2022-03-04 12:08:04,583 INFO L134 CoverageAnalysis]: Checked inductivity of 198324 backedges. 52881 proven. 134780 refuted. 0 times theorem prover too weak. 10663 trivial. 0 not checked. [2022-03-04 12:08:04,583 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1365334869] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 12:08:04,583 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 12:08:04,584 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 275, 41] total 333 [2022-03-04 12:08:04,584 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115349271] [2022-03-04 12:08:04,584 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 12:08:04,588 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 334 states [2022-03-04 12:08:04,588 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 12:08:04,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 334 interpolants. [2022-03-04 12:08:04,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=957, Invalid=110265, Unknown=0, NotChecked=0, Total=111222 [2022-03-04 12:08:04,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 12:08:04,617 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 12:08:04,619 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 334 states, 334 states have (on average 4.958083832335329) internal successors, (1656), 333 states have internal predecessors, (1656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-04 12:08:04,619 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2022-03-04 12:08:04,619 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 12:08:21,168 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 5219 transitions and produced 4862 states. [2022-03-04 12:08:21,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-04 12:08:21,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-03-04 12:08:21,190 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-04 12:08:21,370 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 12:08:21,371 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 12:08:21,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 12:08:21,372 INFO L85 PathProgramCache]: Analyzing trace with hash -2053851751, now seen corresponding path program 3 times [2022-03-04 12:08:21,372 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 12:08:21,372 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501309631] [2022-03-04 12:08:21,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 12:08:21,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 12:08:23,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 12:08:26,192 INFO L134 CoverageAnalysis]: Checked inductivity of 254810 backedges. 69194 proven. 172658 refuted. 0 times theorem prover too weak. 12958 trivial. 0 not checked. [2022-03-04 12:08:26,192 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 12:08:26,193 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501309631] [2022-03-04 12:08:26,193 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501309631] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 12:08:26,193 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [989628376] [2022-03-04 12:08:26,193 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-04 12:08:26,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 12:08:26,194 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 12:08:26,196 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 12:08:26,200 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-04 12:08:28,955 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 291 check-sat command(s) [2022-03-04 12:08:28,955 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 12:08:28,998 INFO L263 TraceCheckSpWp]: Trace formula consists of 3672 conjuncts, 50 conjunts are in the unsatisfiable core [2022-03-04 12:08:29,023 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 12:08:32,929 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2022-03-04 12:08:33,053 INFO L134 CoverageAnalysis]: Checked inductivity of 254810 backedges. 0 proven. 208276 refuted. 0 times theorem prover too weak. 46534 trivial. 0 not checked. [2022-03-04 12:08:33,054 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 12:08:35,116 INFO L353 Elim1Store]: treesize reduction 5, result has 50.0 percent of original size [2022-03-04 12:08:35,116 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 13 [2022-03-04 12:08:36,488 INFO L134 CoverageAnalysis]: Checked inductivity of 254810 backedges. 4588 proven. 203688 refuted. 0 times theorem prover too weak. 46534 trivial. 0 not checked. [2022-03-04 12:08:36,488 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [989628376] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 12:08:36,488 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 12:08:36,489 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 27, 27] total 75 [2022-03-04 12:08:36,489 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827565848] [2022-03-04 12:08:36,489 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 12:08:36,491 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 76 states [2022-03-04 12:08:36,491 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 12:08:36,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 76 interpolants. [2022-03-04 12:08:36,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=153, Invalid=5547, Unknown=0, NotChecked=0, Total=5700 [2022-03-04 12:08:36,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 12:08:36,493 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 12:08:36,493 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 76 states, 76 states have (on average 7.631578947368421) internal successors, (580), 75 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-04 12:08:36,493 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2022-03-04 12:08:36,494 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 52 states. [2022-03-04 12:08:36,494 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 12:08:46,130 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 6531 transitions and produced 6049 states. [2022-03-04 12:08:46,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-04 12:08:46,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-03-04 12:08:46,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2022-03-04 12:08:46,166 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-03-04 12:08:46,347 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 12:08:46,348 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 12:08:46,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 12:08:46,349 INFO L85 PathProgramCache]: Analyzing trace with hash -1302526913, now seen corresponding path program 4 times [2022-03-04 12:08:46,349 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 12:08:46,349 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811649322] [2022-03-04 12:08:46,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 12:08:46,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 12:08:50,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 12:08:53,529 INFO L134 CoverageAnalysis]: Checked inductivity of 429034 backedges. 171136 proven. 217880 refuted. 0 times theorem prover too weak. 40018 trivial. 0 not checked. [2022-03-04 12:08:53,530 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 12:08:53,530 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811649322] [2022-03-04 12:08:53,530 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811649322] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 12:08:53,530 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1808726372] [2022-03-04 12:08:53,530 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-04 12:08:53,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 12:08:53,530 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 12:08:53,532 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 12:08:53,540 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-04 12:08:54,526 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-04 12:08:54,526 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 12:08:54,732 INFO L263 TraceCheckSpWp]: Trace formula consists of 4790 conjuncts, 80 conjunts are in the unsatisfiable core [2022-03-04 12:08:54,757 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 12:09:00,175 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2022-03-04 12:09:00,325 INFO L134 CoverageAnalysis]: Checked inductivity of 429034 backedges. 0 proven. 402156 refuted. 0 times theorem prover too weak. 26878 trivial. 0 not checked. [2022-03-04 12:09:00,326 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 12:09:02,268 INFO L353 Elim1Store]: treesize reduction 5, result has 50.0 percent of original size [2022-03-04 12:09:02,269 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 13 [2022-03-04 12:09:04,485 INFO L134 CoverageAnalysis]: Checked inductivity of 429034 backedges. 3036 proven. 399120 refuted. 0 times theorem prover too weak. 26878 trivial. 0 not checked. [2022-03-04 12:09:04,486 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1808726372] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 12:09:04,486 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 12:09:04,487 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [53, 41, 41] total 95 [2022-03-04 12:09:04,487 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132879904] [2022-03-04 12:09:04,487 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 12:09:04,490 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2022-03-04 12:09:04,490 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 12:09:04,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2022-03-04 12:09:04,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=8927, Unknown=0, NotChecked=0, Total=9120 [2022-03-04 12:09:04,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 12:09:04,492 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 12:09:04,492 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 96 states have (on average 7.864583333333333) internal successors, (755), 95 states have internal predecessors, (755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-04 12:09:04,492 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2022-03-04 12:09:04,492 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 52 states. [2022-03-04 12:09:04,492 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 75 states. [2022-03-04 12:09:04,493 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 12:09:19,512 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 7843 transitions and produced 7236 states. [2022-03-04 12:09:19,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-04 12:09:19,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-03-04 12:09:19,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2022-03-04 12:09:19,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2022-03-04 12:09:19,538 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-03-04 12:09:19,715 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 12:09:19,715 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 12:09:19,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 12:09:19,716 INFO L85 PathProgramCache]: Analyzing trace with hash 413660545, now seen corresponding path program 5 times [2022-03-04 12:09:19,716 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 12:09:19,716 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129608898] [2022-03-04 12:09:19,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 12:09:19,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 12:09:25,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 12:09:29,953 INFO L134 CoverageAnalysis]: Checked inductivity of 648501 backedges. 293238 proven. 268304 refuted. 0 times theorem prover too weak. 86959 trivial. 0 not checked. [2022-03-04 12:09:29,953 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 12:09:29,953 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129608898] [2022-03-04 12:09:29,953 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129608898] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 12:09:29,954 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1979057288] [2022-03-04 12:09:29,954 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-04 12:09:29,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 12:09:29,954 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 12:09:29,956 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 12:09:29,957 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-03-04 12:09:34,734 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 385 check-sat command(s) [2022-03-04 12:09:34,734 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 12:09:34,929 INFO L263 TraceCheckSpWp]: Trace formula consists of 5866 conjuncts, 244 conjunts are in the unsatisfiable core [2022-03-04 12:09:34,958 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 12:09:47,660 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-03-04 12:09:48,867 INFO L134 CoverageAnalysis]: Checked inductivity of 648501 backedges. 293238 proven. 269681 refuted. 0 times theorem prover too weak. 85582 trivial. 0 not checked. [2022-03-04 12:09:48,868 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 12:09:55,764 INFO L353 Elim1Store]: treesize reduction 5, result has 50.0 percent of original size [2022-03-04 12:09:55,764 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 14 [2022-03-04 12:09:56,859 INFO L134 CoverageAnalysis]: Checked inductivity of 648501 backedges. 293238 proven. 268304 refuted. 0 times theorem prover too weak. 86959 trivial. 0 not checked. [2022-03-04 12:09:56,859 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1979057288] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 12:09:56,859 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 12:09:56,860 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [59, 122, 59] total 207 [2022-03-04 12:09:56,860 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956093161] [2022-03-04 12:09:56,860 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 12:09:56,862 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 208 states [2022-03-04 12:09:56,862 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 12:09:56,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 208 interpolants. [2022-03-04 12:09:56,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=593, Invalid=42463, Unknown=0, NotChecked=0, Total=43056 [2022-03-04 12:09:56,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 12:09:56,865 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 12:09:56,866 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 208 states, 208 states have (on average 6.456730769230769) internal successors, (1343), 207 states have internal predecessors, (1343), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-04 12:09:56,866 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2022-03-04 12:09:56,866 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 52 states. [2022-03-04 12:09:56,866 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 75 states. [2022-03-04 12:09:56,866 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 95 states. [2022-03-04 12:09:56,866 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 12:10:20,904 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 9146 transitions and produced 8503 states. [2022-03-04 12:10:20,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-04 12:10:20,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-03-04 12:10:20,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2022-03-04 12:10:20,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2022-03-04 12:10:20,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 119 states. [2022-03-04 12:10:20,933 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-03-04 12:10:21,105 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 12:10:21,106 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 12:10:21,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 12:10:21,107 INFO L85 PathProgramCache]: Analyzing trace with hash 350688637, now seen corresponding path program 6 times [2022-03-04 12:10:21,107 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 12:10:21,107 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877895174] [2022-03-04 12:10:21,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 12:10:21,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 12:10:29,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 12:10:33,801 INFO L134 CoverageAnalysis]: Checked inductivity of 880172 backedges. 367686 proven. 417310 refuted. 0 times theorem prover too weak. 95176 trivial. 0 not checked. [2022-03-04 12:10:33,801 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 12:10:33,802 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877895174] [2022-03-04 12:10:33,802 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877895174] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 12:10:33,802 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1733484026] [2022-03-04 12:10:33,802 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-04 12:10:33,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 12:10:33,802 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 12:10:33,805 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 12:10:33,806 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-03-04 12:10:40,281 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 509 check-sat command(s) [2022-03-04 12:10:40,282 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 12:10:40,386 INFO L263 TraceCheckSpWp]: Trace formula consists of 5961 conjuncts, 206 conjunts are in the unsatisfiable core [2022-03-04 12:10:40,416 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 12:10:52,915 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-03-04 12:10:57,951 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-03-04 12:10:58,222 INFO L134 CoverageAnalysis]: Checked inductivity of 880172 backedges. 0 proven. 847153 refuted. 0 times theorem prover too weak. 33019 trivial. 0 not checked. [2022-03-04 12:10:58,222 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 12:11:03,664 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-04 12:11:03,664 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 19 [2022-03-04 12:11:19,510 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-04 12:11:19,511 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 27 [2022-03-04 12:11:21,042 INFO L134 CoverageAnalysis]: Checked inductivity of 880172 backedges. 0 proven. 847153 refuted. 0 times theorem prover too weak. 33019 trivial. 0 not checked. [2022-03-04 12:11:21,042 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1733484026] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 12:11:21,042 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 12:11:21,043 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 103, 103] total 243 [2022-03-04 12:11:21,043 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326586134] [2022-03-04 12:11:21,043 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 12:11:21,046 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 244 states [2022-03-04 12:11:21,046 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 12:11:21,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 244 interpolants. [2022-03-04 12:11:21,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=563, Invalid=58729, Unknown=0, NotChecked=0, Total=59292 [2022-03-04 12:11:21,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 12:11:21,052 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 12:11:21,053 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 244 states, 244 states have (on average 7.032786885245901) internal successors, (1716), 243 states have internal predecessors, (1716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-04 12:11:21,053 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2022-03-04 12:11:21,053 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 52 states. [2022-03-04 12:11:21,053 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 75 states. [2022-03-04 12:11:21,054 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 95 states. [2022-03-04 12:11:21,054 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 119 states. [2022-03-04 12:11:21,054 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 12:12:18,787 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 10458 transitions and produced 9690 states. [2022-03-04 12:12:18,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-04 12:12:18,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-03-04 12:12:18,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2022-03-04 12:12:18,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2022-03-04 12:12:18,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 119 states. [2022-03-04 12:12:18,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 121 states. [2022-03-04 12:12:18,816 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-03-04 12:12:18,989 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 12:12:18,989 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 12:12:18,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 12:12:18,990 INFO L85 PathProgramCache]: Analyzing trace with hash -1296775717, now seen corresponding path program 7 times [2022-03-04 12:12:18,990 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 12:12:18,990 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115955426] [2022-03-04 12:12:18,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 12:12:18,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 12:12:31,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 12:12:36,325 INFO L134 CoverageAnalysis]: Checked inductivity of 1184792 backedges. 536268 proven. 487186 refuted. 0 times theorem prover too weak. 161338 trivial. 0 not checked. [2022-03-04 12:12:36,326 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 12:12:36,326 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115955426] [2022-03-04 12:12:36,326 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115955426] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 12:12:36,326 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [961231994] [2022-03-04 12:12:36,326 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-03-04 12:12:36,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 12:12:36,326 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 12:12:36,327 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 12:12:36,328 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-03-04 12:12:38,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 12:12:39,878 INFO L263 TraceCheckSpWp]: Trace formula consists of 7833 conjuncts, 136 conjunts are in the unsatisfiable core [2022-03-04 12:12:39,908 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 12:12:50,673 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2022-03-04 12:12:50,923 INFO L134 CoverageAnalysis]: Checked inductivity of 1184792 backedges. 0 proven. 1152036 refuted. 0 times theorem prover too weak. 32756 trivial. 0 not checked. [2022-03-04 12:12:50,923 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 12:12:53,879 INFO L353 Elim1Store]: treesize reduction 5, result has 50.0 percent of original size [2022-03-04 12:12:53,880 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 13 [2022-03-04 12:12:58,842 INFO L134 CoverageAnalysis]: Checked inductivity of 1184792 backedges. 1096 proven. 1150940 refuted. 0 times theorem prover too weak. 32756 trivial. 0 not checked. [2022-03-04 12:12:58,842 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [961231994] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 12:12:58,842 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 12:12:58,843 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [71, 69, 69] total 141 [2022-03-04 12:12:58,843 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346042604] [2022-03-04 12:12:58,844 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 12:12:58,846 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 142 states [2022-03-04 12:12:58,846 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 12:12:58,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 142 interpolants. [2022-03-04 12:12:58,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=285, Invalid=19737, Unknown=0, NotChecked=0, Total=20022 [2022-03-04 12:12:58,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 12:12:58,847 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 12:12:58,848 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 142 states, 142 states have (on average 8.077464788732394) internal successors, (1147), 141 states have internal predecessors, (1147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-04 12:12:58,848 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2022-03-04 12:12:58,848 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 52 states. [2022-03-04 12:12:58,848 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 75 states. [2022-03-04 12:12:58,848 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 95 states. [2022-03-04 12:12:58,848 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 119 states. [2022-03-04 12:12:58,848 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 121 states. [2022-03-04 12:12:58,848 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 12:13:34,275 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 11770 transitions and produced 10877 states. [2022-03-04 12:13:34,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-04 12:13:34,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-03-04 12:13:34,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2022-03-04 12:13:34,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2022-03-04 12:13:34,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 119 states. [2022-03-04 12:13:34,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 121 states. [2022-03-04 12:13:34,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 141 states. [2022-03-04 12:13:34,309 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-03-04 12:13:34,477 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-03-04 12:13:34,477 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 12:13:34,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 12:13:34,478 INFO L85 PathProgramCache]: Analyzing trace with hash 1337926245, now seen corresponding path program 8 times [2022-03-04 12:13:34,479 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 12:13:34,479 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209421379] [2022-03-04 12:13:34,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 12:13:34,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 12:13:41,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 12:13:44,381 INFO L134 CoverageAnalysis]: Checked inductivity of 1534655 backedges. 491984 proven. 993149 refuted. 0 times theorem prover too weak. 49522 trivial. 0 not checked. [2022-03-04 12:13:44,381 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 12:13:44,381 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209421379] [2022-03-04 12:13:44,381 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209421379] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 12:13:44,381 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [983855379] [2022-03-04 12:13:44,381 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-04 12:13:44,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 12:13:44,382 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 12:13:44,383 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 12:13:44,383 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-03-04 12:13:48,297 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-04 12:13:48,297 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 12:13:49,960 INFO L263 TraceCheckSpWp]: Trace formula consists of 8909 conjuncts, 76 conjunts are in the unsatisfiable core [2022-03-04 12:13:50,001 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 12:13:57,919 INFO L134 CoverageAnalysis]: Checked inductivity of 1534655 backedges. 491980 proven. 993149 refuted. 0 times theorem prover too weak. 49526 trivial. 0 not checked. [2022-03-04 12:13:57,920 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 12:14:13,682 INFO L134 CoverageAnalysis]: Checked inductivity of 1534655 backedges. 491980 proven. 993149 refuted. 0 times theorem prover too weak. 49526 trivial. 0 not checked. [2022-03-04 12:14:13,682 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [983855379] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 12:14:13,682 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 12:14:13,683 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 39, 39] total 41 [2022-03-04 12:14:13,683 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058756449] [2022-03-04 12:14:13,683 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 12:14:13,687 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2022-03-04 12:14:13,687 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 12:14:13,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2022-03-04 12:14:13,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=860, Invalid=862, Unknown=0, NotChecked=0, Total=1722 [2022-03-04 12:14:13,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 12:14:13,688 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 12:14:13,689 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 14.5) internal successors, (609), 41 states have internal predecessors, (609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-04 12:14:13,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2022-03-04 12:14:13,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 52 states. [2022-03-04 12:14:13,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 75 states. [2022-03-04 12:14:13,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 95 states. [2022-03-04 12:14:13,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 119 states. [2022-03-04 12:14:13,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 121 states. [2022-03-04 12:14:13,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 141 states. [2022-03-04 12:14:13,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 12:14:17,737 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 12811 transitions and produced 11879 states. [2022-03-04 12:14:17,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-04 12:14:17,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-03-04 12:14:17,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2022-03-04 12:14:17,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2022-03-04 12:14:17,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 119 states. [2022-03-04 12:14:17,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 121 states. [2022-03-04 12:14:17,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 141 states. [2022-03-04 12:14:17,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-04 12:14:17,779 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-03-04 12:14:17,939 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 12:14:17,939 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 12:14:17,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 12:14:17,941 INFO L85 PathProgramCache]: Analyzing trace with hash 675121067, now seen corresponding path program 9 times [2022-03-04 12:14:17,941 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 12:14:17,941 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1946353820] [2022-03-04 12:14:17,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 12:14:17,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 12:14:42,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 12:14:49,101 INFO L134 CoverageAnalysis]: Checked inductivity of 1752730 backedges. 804048 proven. 703628 refuted. 0 times theorem prover too weak. 245054 trivial. 0 not checked. [2022-03-04 12:14:49,102 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 12:14:49,102 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1946353820] [2022-03-04 12:14:49,102 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1946353820] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 12:14:49,102 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [851763863] [2022-03-04 12:14:49,102 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-04 12:14:49,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 12:14:49,102 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 12:14:49,103 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 12:14:49,106 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-03-04 12:15:14,722 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 739 check-sat command(s) [2022-03-04 12:15:14,723 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 12:15:15,112 INFO L263 TraceCheckSpWp]: Trace formula consists of 9482 conjuncts, 162 conjunts are in the unsatisfiable core [2022-03-04 12:15:15,149 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 12:15:29,625 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2022-03-04 12:15:29,934 INFO L134 CoverageAnalysis]: Checked inductivity of 1752730 backedges. 0 proven. 1715214 refuted. 0 times theorem prover too weak. 37516 trivial. 0 not checked. [2022-03-04 12:15:29,934 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 12:15:33,846 INFO L353 Elim1Store]: treesize reduction 5, result has 50.0 percent of original size [2022-03-04 12:15:33,847 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 14 treesize of output 13 [2022-03-04 12:15:39,463 INFO L134 CoverageAnalysis]: Checked inductivity of 1752730 backedges. 1420 proven. 1713794 refuted. 0 times theorem prover too weak. 37516 trivial. 0 not checked. [2022-03-04 12:15:39,463 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [851763863] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 12:15:39,463 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 12:15:39,464 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [87, 83, 83] total 171 [2022-03-04 12:15:39,465 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405504472] [2022-03-04 12:15:39,465 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 12:15:39,468 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 172 states [2022-03-04 12:15:39,468 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 12:15:39,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 172 interpolants. [2022-03-04 12:15:39,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=345, Invalid=29067, Unknown=0, NotChecked=0, Total=29412 [2022-03-04 12:15:39,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 12:15:39,470 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 12:15:39,470 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 172 states, 172 states have (on average 8.093023255813954) internal successors, (1392), 171 states have internal predecessors, (1392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-04 12:15:39,470 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2022-03-04 12:15:39,470 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 52 states. [2022-03-04 12:15:39,471 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 75 states. [2022-03-04 12:15:39,471 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 95 states. [2022-03-04 12:15:39,471 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 119 states. [2022-03-04 12:15:39,471 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 121 states. [2022-03-04 12:15:39,471 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 141 states. [2022-03-04 12:15:39,471 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2022-03-04 12:15:39,471 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 12:16:35,689 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 13997 transitions and produced 12931 states. [2022-03-04 12:16:35,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-04 12:16:35,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-03-04 12:16:35,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2022-03-04 12:16:35,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2022-03-04 12:16:35,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 119 states. [2022-03-04 12:16:35,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 121 states. [2022-03-04 12:16:35,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 141 states. [2022-03-04 12:16:35,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-04 12:16:35,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 171 states. [2022-03-04 12:16:35,743 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-03-04 12:16:35,890 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-03-04 12:16:35,891 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 12:16:35,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 12:16:35,892 INFO L85 PathProgramCache]: Analyzing trace with hash 2057866535, now seen corresponding path program 10 times [2022-03-04 12:16:35,893 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 12:16:35,893 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557968157] [2022-03-04 12:16:35,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 12:16:35,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 12:16:39,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 12:16:45,501 INFO L134 CoverageAnalysis]: Checked inductivity of 2173366 backedges. 720261 proven. 1396851 refuted. 0 times theorem prover too weak. 56254 trivial. 0 not checked. [2022-03-04 12:16:45,502 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 12:16:45,502 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557968157] [2022-03-04 12:16:45,502 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557968157] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 12:16:45,506 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [92475258] [2022-03-04 12:16:45,506 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-04 12:16:45,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 12:16:45,507 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 12:16:45,508 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 12:16:45,509 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-03-04 12:16:51,483 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-04 12:16:51,483 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 12:16:54,109 INFO L263 TraceCheckSpWp]: Trace formula consists of 10600 conjuncts, 92 conjunts are in the unsatisfiable core [2022-03-04 12:16:54,142 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 12:17:01,800 INFO L134 CoverageAnalysis]: Checked inductivity of 2173366 backedges. 720261 proven. 1396851 refuted. 0 times theorem prover too weak. 56254 trivial. 0 not checked. [2022-03-04 12:17:01,800 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 12:17:09,555 INFO L134 CoverageAnalysis]: Checked inductivity of 2173366 backedges. 720261 proven. 1396851 refuted. 0 times theorem prover too weak. 56254 trivial. 0 not checked. [2022-03-04 12:17:09,556 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [92475258] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 12:17:09,556 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 12:17:09,557 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 47, 47] total 48 [2022-03-04 12:17:09,557 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083763404] [2022-03-04 12:17:09,557 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 12:17:09,559 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2022-03-04 12:17:09,559 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 12:17:09,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2022-03-04 12:17:09,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2022-03-04 12:17:09,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 12:17:09,560 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 12:17:09,561 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 49 states have (on average 14.693877551020408) internal successors, (720), 48 states have internal predecessors, (720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-04 12:17:09,561 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2022-03-04 12:17:09,561 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 52 states. [2022-03-04 12:17:09,561 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 75 states. [2022-03-04 12:17:09,561 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 95 states. [2022-03-04 12:17:09,561 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 119 states. [2022-03-04 12:17:09,561 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 121 states. [2022-03-04 12:17:09,561 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 141 states. [2022-03-04 12:17:09,561 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2022-03-04 12:17:09,561 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 171 states. [2022-03-04 12:17:09,561 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 12:17:13,754 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 15038 transitions and produced 13933 states. [2022-03-04 12:17:13,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-04 12:17:13,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-03-04 12:17:13,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2022-03-04 12:17:13,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2022-03-04 12:17:13,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 119 states. [2022-03-04 12:17:13,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 121 states. [2022-03-04 12:17:13,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 141 states. [2022-03-04 12:17:13,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-04 12:17:13,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 171 states. [2022-03-04 12:17:13,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-03-04 12:17:13,800 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-03-04 12:17:13,959 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-03-04 12:17:13,960 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 12:17:13,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 12:17:13,961 INFO L85 PathProgramCache]: Analyzing trace with hash 1865739297, now seen corresponding path program 11 times [2022-03-04 12:17:13,961 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 12:17:13,961 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778472197] [2022-03-04 12:17:13,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 12:17:13,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 12:17:50,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 12:17:59,617 INFO L134 CoverageAnalysis]: Checked inductivity of 2431521 backedges. 1127462 proven. 953156 refuted. 0 times theorem prover too weak. 350903 trivial. 0 not checked. [2022-03-04 12:17:59,617 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 12:17:59,617 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1778472197] [2022-03-04 12:17:59,618 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1778472197] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 12:17:59,618 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1469468680] [2022-03-04 12:17:59,618 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-04 12:17:59,618 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 12:17:59,618 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 12:17:59,620 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) [2022-03-04 12:17:59,646 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-03-04 12:18:22,133 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 815 check-sat command(s) [2022-03-04 12:18:22,134 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 12:18:23,738 INFO L263 TraceCheckSpWp]: Trace formula consists of 11215 conjuncts, 492 conjunts are in the unsatisfiable core [2022-03-04 12:18:23,773 INFO L286 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2022-03-04 12:18:51,425 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (3 of 4 remaining) [2022-03-04 12:18:51,443 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 [2022-03-04 12:18:51,444 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-04 12:18:51,444 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-04 12:18:51,468 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-03-04 12:18:51,626 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,SelfDestructingSolverStorable10 [2022-03-04 12:18:51,626 WARN L594 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 4953 with TraceHistMax 1100,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 290 known predicates. [2022-03-04 12:18:51,628 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-03-04 12:18:51,628 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-03-04 12:18:51,628 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-03-04 12:18:51,633 INFO L732 BasicCegarLoop]: Path program histogram: [11] [2022-03-04 12:18:51,635 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-04 12:18:51,635 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-04 12:18:51,637 INFO L202 PluginConnector]: Adding new model queue-add-3-nl.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.03 12:18:51 BasicIcfg [2022-03-04 12:18:51,637 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-04 12:18:51,638 INFO L158 Benchmark]: Toolchain (without parser) took 713928.07ms. Allocated memory was 189.8MB in the beginning and 4.2GB in the end (delta: 4.0GB). Free memory was 147.4MB in the beginning and 3.4GB in the end (delta: -3.3GB). Peak memory consumption was 771.7MB. Max. memory is 8.0GB. [2022-03-04 12:18:51,638 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.09ms. Allocated memory is still 189.8MB. Free memory is still 148.7MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-04 12:18:51,638 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.20ms. Allocated memory is still 189.8MB. Free memory was 147.4MB in the beginning and 145.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-04 12:18:51,638 INFO L158 Benchmark]: Boogie Preprocessor took 16.97ms. Allocated memory is still 189.8MB. Free memory was 145.8MB in the beginning and 144.8MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-04 12:18:51,638 INFO L158 Benchmark]: RCFGBuilder took 213.19ms. Allocated memory is still 189.8MB. Free memory was 144.8MB in the beginning and 134.5MB in the end (delta: 10.3MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-03-04 12:18:51,639 INFO L158 Benchmark]: TraceAbstraction took 713669.45ms. Allocated memory was 189.8MB in the beginning and 4.2GB in the end (delta: 4.0GB). Free memory was 133.9MB in the beginning and 3.4GB in the end (delta: -3.3GB). Peak memory consumption was 758.0MB. Max. memory is 8.0GB. [2022-03-04 12:18:51,640 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 189.8MB. Free memory is still 148.7MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 24.20ms. Allocated memory is still 189.8MB. Free memory was 147.4MB in the beginning and 145.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 16.97ms. Allocated memory is still 189.8MB. Free memory was 145.8MB in the beginning and 144.8MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 213.19ms. Allocated memory is still 189.8MB. Free memory was 144.8MB in the beginning and 134.5MB in the end (delta: 10.3MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 713669.45ms. Allocated memory was 189.8MB in the beginning and 4.2GB in the end (delta: 4.0GB). Free memory was 133.9MB in the beginning and 3.4GB in the end (delta: -3.3GB). Peak memory consumption was 758.0MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1, Independence queries for same thread: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 96]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PartialOrderCegarLoop was analyzing trace of length 4953 with TraceHistMax 1100,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 290 known predicates. - TimeoutResultAtElement [Line: 89]: 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 4953 with TraceHistMax 1100,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 290 known predicates. - TimeoutResultAtElement [Line: 89]: 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 4953 with TraceHistMax 1100,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 290 known predicates. - TimeoutResultAtElement [Line: 90]: 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 4953 with TraceHistMax 1100,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 290 known predicates. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 71 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 713.5s, OverallIterations: 11, TraceHistogramMax: 0, PathProgramHistogramMax: 11, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 228.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 900, 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: 1.7s SsaConstructionTime, 125.3s SatisfiabilityAnalysisTime, 257.2s InterpolantComputationTime, 55652 NumberOfCodeBlocks, 55262 NumberOfCodeBlocksAsserted, 1942 NumberOfCheckSat, 83448 ConstructedInterpolants, 0 QuantifiedInterpolants, 578613 SizeOfPredicates, 45 NumberOfNonLiveVariables, 62202 ConjunctsInSsa, 1740 ConjunctsInUnsatCore, 30 InterpolantComputations, 0 PerfectInterpolantSequences, 8195301/27342984 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