/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-2-nl.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-04 12:06:50,516 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-04 12:06:50,518 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-04 12:06:50,570 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-04 12:06:50,570 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-04 12:06:50,571 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-04 12:06:50,571 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-04 12:06:50,573 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-04 12:06:50,574 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-04 12:06:50,574 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-04 12:06:50,575 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-04 12:06:50,576 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-04 12:06:50,576 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-04 12:06:50,577 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-04 12:06:50,577 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-04 12:06:50,578 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-04 12:06:50,583 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-04 12:06:50,587 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-04 12:06:50,593 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-04 12:06:50,598 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-04 12:06:50,600 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-04 12:06:50,601 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-04 12:06:50,603 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-04 12:06:50,603 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-04 12:06:50,606 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-04 12:06:50,610 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-04 12:06:50,611 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-04 12:06:50,611 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-04 12:06:50,615 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 12:06:50,636 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-04 12:06:50,637 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-04 12:06:50,637 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-04 12:06:50,637 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-04 12:06:50,637 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-04 12:06:50,637 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-04 12:06:50,638 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-04 12:06:50,638 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-04 12:06:50,638 INFO L138 SettingsManager]: * Use SBE=true [2022-03-04 12:06:50,638 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-04 12:06:50,638 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-04 12:06:50,638 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-04 12:06:50,638 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-04 12:06:50,638 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-04 12:06:50,638 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-04 12:06:50,639 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-04 12:06:50,639 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-04 12:06:50,639 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-04 12:06:50,639 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-04 12:06:50,639 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-04 12:06:50,639 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-04 12:06:50,639 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-04 12:06:50,639 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-04 12:06:50,639 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-04 12:06:50,639 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-04 12:06:50,639 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-04 12:06:50,640 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-04 12:06:50,640 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-04 12:06:50,640 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-04 12:06:50,640 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-04 12:06:50,640 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-04 12:06:50,640 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-04 12:06:50,640 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-04 12:06:50,640 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-04 12:06:50,640 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-04 12:06:50,640 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITHOUT_DEPRANKS [2022-03-04 12:06:50,640 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-04 12:06:50,808 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-04 12:06:50,828 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-04 12:06:50,830 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-04 12:06:50,831 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-04 12:06:50,831 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-04 12:06:50,832 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/queue-add-2-nl.wvr.bpl [2022-03-04 12:06:50,832 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/queue-add-2-nl.wvr.bpl' [2022-03-04 12:06:50,851 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-04 12:06:50,858 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-04 12:06:50,859 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-04 12:06:50,859 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-04 12:06:50,859 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-04 12:06:50,871 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "queue-add-2-nl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 12:06:50" (1/1) ... [2022-03-04 12:06:50,876 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "queue-add-2-nl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 12:06:50" (1/1) ... [2022-03-04 12:06:50,881 INFO L137 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-04 12:06:50,882 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-04 12:06:50,884 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-04 12:06:50,884 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-04 12:06:50,884 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-04 12:06:50,891 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "queue-add-2-nl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 12:06:50" (1/1) ... [2022-03-04 12:06:50,891 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "queue-add-2-nl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 12:06:50" (1/1) ... [2022-03-04 12:06:50,892 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "queue-add-2-nl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 12:06:50" (1/1) ... [2022-03-04 12:06:50,892 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "queue-add-2-nl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 12:06:50" (1/1) ... [2022-03-04 12:06:50,894 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "queue-add-2-nl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 12:06:50" (1/1) ... [2022-03-04 12:06:50,897 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "queue-add-2-nl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 12:06:50" (1/1) ... [2022-03-04 12:06:50,898 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "queue-add-2-nl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 12:06:50" (1/1) ... [2022-03-04 12:06:50,899 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-04 12:06:50,902 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-04 12:06:50,902 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-04 12:06:50,902 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-04 12:06:50,903 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "queue-add-2-nl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 12:06:50" (1/1) ... [2022-03-04 12:06:50,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-04 12:06:50,917 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 12:06:50,941 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 12:06:50,951 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 12:06:50,973 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-03-04 12:06:50,973 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-04 12:06:50,973 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-04 12:06:50,973 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-03-04 12:06:50,973 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-04 12:06:50,974 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-04 12:06:50,974 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-04 12:06:50,974 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-04 12:06:50,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-04 12:06:50,975 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 12:06:51,012 INFO L234 CfgBuilder]: Building ICFG [2022-03-04 12:06:51,013 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-04 12:06:51,124 INFO L275 CfgBuilder]: Performing block encoding [2022-03-04 12:06:51,140 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-04 12:06:51,140 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-04 12:06:51,142 INFO L202 PluginConnector]: Adding new model queue-add-2-nl.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.03 12:06:51 BoogieIcfgContainer [2022-03-04 12:06:51,142 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-04 12:06:51,143 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-04 12:06:51,143 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-04 12:06:51,145 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-04 12:06:51,145 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "queue-add-2-nl.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 12:06:50" (1/2) ... [2022-03-04 12:06:51,146 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c9e1608 and model type queue-add-2-nl.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 12:06:51, skipping insertion in model container [2022-03-04 12:06:51,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "queue-add-2-nl.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.03 12:06:51" (2/2) ... [2022-03-04 12:06:51,147 INFO L111 eAbstractionObserver]: Analyzing ICFG queue-add-2-nl.wvr.bpl [2022-03-04 12:06:51,151 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-04 12:06:51,151 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-04 12:06:51,151 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-04 12:06:51,151 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-04 12:06:51,192 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-03-04 12:06:51,233 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-04 12:06:51,233 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 12:06:51,248 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 12:06:51,249 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 12:06:51,297 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-04 12:06:51,303 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 12:06:51,303 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-03-04 12:06:51,660 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 479 transitions and produced 444 states. [2022-03-04 12:06:51,662 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-04 12:06:51,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 12:06:51,667 INFO L85 PathProgramCache]: Analyzing trace with hash 1465821299, now seen corresponding path program 1 times [2022-03-04 12:06:51,673 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 12:06:51,674 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726053517] [2022-03-04 12:06:51,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 12:06:51,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 12:06:51,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 12:06:52,544 INFO L134 CoverageAnalysis]: Checked inductivity of 3520 backedges. 542 proven. 2568 refuted. 0 times theorem prover too weak. 410 trivial. 0 not checked. [2022-03-04 12:06:52,544 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 12:06:52,544 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726053517] [2022-03-04 12:06:52,545 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726053517] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 12:06:52,545 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [120382589] [2022-03-04 12:06:52,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 12:06:52,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 12:06:52,545 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 12:06:52,575 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 12:06:52,605 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 12:06:52,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 12:06:52,740 INFO L263 TraceCheckSpWp]: Trace formula consists of 460 conjuncts, 98 conjunts are in the unsatisfiable core [2022-03-04 12:06:52,747 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 12:06:54,489 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 12:06:54,562 INFO L134 CoverageAnalysis]: Checked inductivity of 3520 backedges. 542 proven. 2955 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-03-04 12:06:54,562 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 12:06:54,917 INFO L353 Elim1Store]: treesize reduction 5, result has 50.0 percent of original size [2022-03-04 12:06:54,917 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 12:06:54,962 INFO L134 CoverageAnalysis]: Checked inductivity of 3520 backedges. 542 proven. 2472 refuted. 0 times theorem prover too weak. 506 trivial. 0 not checked. [2022-03-04 12:06:54,962 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [120382589] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 12:06:54,962 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 12:06:54,963 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 43, 11] total 54 [2022-03-04 12:06:54,964 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752641053] [2022-03-04 12:06:54,965 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 12:06:54,969 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 55 states [2022-03-04 12:06:54,970 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 12:06:54,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2022-03-04 12:06:55,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=2820, Unknown=0, NotChecked=0, Total=2970 [2022-03-04 12:06:55,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 12:06:55,003 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 12:06:55,005 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 55 states, 55 states have (on average 4.8) internal successors, (264), 54 states have internal predecessors, (264), 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 12:06:55,005 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 12:06:56,533 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 845 transitions and produced 787 states. [2022-03-04 12:06:56,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-04 12:06:56,560 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 12:06:56,747 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 12:06:56,748 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-04 12:06:56,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 12:06:56,748 INFO L85 PathProgramCache]: Analyzing trace with hash -2098124799, now seen corresponding path program 2 times [2022-03-04 12:06:56,748 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 12:06:56,749 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647836720] [2022-03-04 12:06:56,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 12:06:56,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 12:06:56,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 12:06:57,406 INFO L134 CoverageAnalysis]: Checked inductivity of 11364 backedges. 0 proven. 10032 refuted. 0 times theorem prover too weak. 1332 trivial. 0 not checked. [2022-03-04 12:06:57,406 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 12:06:57,406 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647836720] [2022-03-04 12:06:57,407 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647836720] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 12:06:57,407 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [567593853] [2022-03-04 12:06:57,407 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-04 12:06:57,407 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 12:06:57,407 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 12:06:57,408 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 12:06:57,409 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 12:06:57,528 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-04 12:06:57,529 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 12:06:57,534 INFO L263 TraceCheckSpWp]: Trace formula consists of 812 conjuncts, 176 conjunts are in the unsatisfiable core [2022-03-04 12:06:57,541 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 12:07:02,160 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 12:07:02,234 INFO L134 CoverageAnalysis]: Checked inductivity of 11364 backedges. 0 proven. 11364 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 12:07:02,234 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 12:07:02,905 INFO L353 Elim1Store]: treesize reduction 5, result has 50.0 percent of original size [2022-03-04 12:07:02,905 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 12:07:03,064 INFO L134 CoverageAnalysis]: Checked inductivity of 11364 backedges. 0 proven. 9936 refuted. 0 times theorem prover too weak. 1428 trivial. 0 not checked. [2022-03-04 12:07:03,065 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [567593853] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 12:07:03,065 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 12:07:03,065 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 88, 21] total 109 [2022-03-04 12:07:03,065 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043391517] [2022-03-04 12:07:03,066 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 12:07:03,067 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 110 states [2022-03-04 12:07:03,067 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 12:07:03,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 110 interpolants. [2022-03-04 12:07:03,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=316, Invalid=11674, Unknown=0, NotChecked=0, Total=11990 [2022-03-04 12:07:03,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 12:07:03,071 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 12:07:03,071 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 110 states, 110 states have (on average 4.454545454545454) internal successors, (490), 109 states have internal predecessors, (490), 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 12:07:03,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2022-03-04 12:07:03,071 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 12:07:06,833 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1453 transitions and produced 1334 states. [2022-03-04 12:07:06,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-04 12:07:06,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-03-04 12:07:06,866 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 12:07:07,041 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 12:07:07,042 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-04 12:07:07,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 12:07:07,042 INFO L85 PathProgramCache]: Analyzing trace with hash 411536779, now seen corresponding path program 3 times [2022-03-04 12:07:07,042 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 12:07:07,042 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886517383] [2022-03-04 12:07:07,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 12:07:07,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 12:07:07,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 12:07:08,179 INFO L134 CoverageAnalysis]: Checked inductivity of 35185 backedges. 0 proven. 32815 refuted. 0 times theorem prover too weak. 2370 trivial. 0 not checked. [2022-03-04 12:07:08,179 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 12:07:08,179 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886517383] [2022-03-04 12:07:08,179 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886517383] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 12:07:08,180 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1207452207] [2022-03-04 12:07:08,180 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-04 12:07:08,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 12:07:08,180 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 12:07:08,184 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 12:07:08,215 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 12:07:08,602 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 131 check-sat command(s) [2022-03-04 12:07:08,602 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 12:07:08,609 INFO L263 TraceCheckSpWp]: Trace formula consists of 1371 conjuncts, 60 conjunts are in the unsatisfiable core [2022-03-04 12:07:08,616 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 12:07:10,343 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 12:07:10,384 INFO L134 CoverageAnalysis]: Checked inductivity of 35185 backedges. 0 proven. 32719 refuted. 0 times theorem prover too weak. 2466 trivial. 0 not checked. [2022-03-04 12:07:10,384 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 12:07:11,317 INFO L353 Elim1Store]: treesize reduction 5, result has 50.0 percent of original size [2022-03-04 12:07:11,318 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 12:07:11,552 INFO L134 CoverageAnalysis]: Checked inductivity of 35185 backedges. 0 proven. 32719 refuted. 0 times theorem prover too weak. 2466 trivial. 0 not checked. [2022-03-04 12:07:11,553 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1207452207] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 12:07:11,553 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 12:07:11,554 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 31, 31] total 62 [2022-03-04 12:07:11,554 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569422266] [2022-03-04 12:07:11,554 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 12:07:11,556 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2022-03-04 12:07:11,556 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 12:07:11,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2022-03-04 12:07:11,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=154, Invalid=3752, Unknown=0, NotChecked=0, Total=3906 [2022-03-04 12:07:11,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 12:07:11,557 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 12:07:11,558 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 63 states, 63 states have (on average 6.0) internal successors, (378), 62 states have internal predecessors, (378), 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 12:07:11,558 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2022-03-04 12:07:11,559 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2022-03-04 12:07:11,559 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 12:07:13,508 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1998 transitions and produced 1818 states. [2022-03-04 12:07:13,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-04 12:07:13,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-03-04 12:07:13,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-03-04 12:07:13,531 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-03-04 12:07:13,710 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 12:07:13,710 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-04 12:07:13,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 12:07:13,711 INFO L85 PathProgramCache]: Analyzing trace with hash -515761819, now seen corresponding path program 4 times [2022-03-04 12:07:13,711 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 12:07:13,711 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601920229] [2022-03-04 12:07:13,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 12:07:13,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 12:07:14,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 12:07:15,358 INFO L134 CoverageAnalysis]: Checked inductivity of 66940 backedges. 0 proven. 63985 refuted. 0 times theorem prover too weak. 2955 trivial. 0 not checked. [2022-03-04 12:07:15,358 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 12:07:15,358 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601920229] [2022-03-04 12:07:15,358 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601920229] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 12:07:15,358 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1413074605] [2022-03-04 12:07:15,359 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-04 12:07:15,359 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 12:07:15,359 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 12:07:15,360 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 12:07:15,360 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 12:07:15,628 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-04 12:07:15,628 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 12:07:15,649 INFO L263 TraceCheckSpWp]: Trace formula consists of 1885 conjuncts, 80 conjunts are in the unsatisfiable core [2022-03-04 12:07:15,657 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 12:07:18,248 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 12:07:18,304 INFO L134 CoverageAnalysis]: Checked inductivity of 66940 backedges. 0 proven. 63889 refuted. 0 times theorem prover too weak. 3051 trivial. 0 not checked. [2022-03-04 12:07:18,304 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 12:07:19,568 INFO L353 Elim1Store]: treesize reduction 5, result has 50.0 percent of original size [2022-03-04 12:07:19,569 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 12:07:20,026 INFO L134 CoverageAnalysis]: Checked inductivity of 66940 backedges. 0 proven. 63889 refuted. 0 times theorem prover too weak. 3051 trivial. 0 not checked. [2022-03-04 12:07:20,027 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1413074605] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 12:07:20,027 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 12:07:20,027 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [42, 41, 41] total 82 [2022-03-04 12:07:20,027 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866381678] [2022-03-04 12:07:20,028 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 12:07:20,029 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 83 states [2022-03-04 12:07:20,029 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 12:07:20,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 83 interpolants. [2022-03-04 12:07:20,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=206, Invalid=6600, Unknown=0, NotChecked=0, Total=6806 [2022-03-04 12:07:20,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 12:07:20,030 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 12:07:20,031 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 83 states, 83 states have (on average 6.120481927710843) internal successors, (508), 82 states have internal predecessors, (508), 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 12:07:20,031 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2022-03-04 12:07:20,031 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2022-03-04 12:07:20,031 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2022-03-04 12:07:20,031 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 12:07:23,139 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2543 transitions and produced 2302 states. [2022-03-04 12:07:23,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-04 12:07:23,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-03-04 12:07:23,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-03-04 12:07:23,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-04 12:07:23,160 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-03-04 12:07:23,340 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 12:07:23,340 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-04 12:07:23,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 12:07:23,341 INFO L85 PathProgramCache]: Analyzing trace with hash -251174709, now seen corresponding path program 5 times [2022-03-04 12:07:23,341 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 12:07:23,341 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728366208] [2022-03-04 12:07:23,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 12:07:23,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 12:07:24,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 12:07:25,685 INFO L134 CoverageAnalysis]: Checked inductivity of 108820 backedges. 0 proven. 105180 refuted. 0 times theorem prover too weak. 3640 trivial. 0 not checked. [2022-03-04 12:07:25,685 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 12:07:25,685 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728366208] [2022-03-04 12:07:25,686 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728366208] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 12:07:25,686 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1721328987] [2022-03-04 12:07:25,686 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-04 12:07:25,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 12:07:25,686 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 12:07:25,687 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 12:07:25,690 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 12:07:26,853 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 222 check-sat command(s) [2022-03-04 12:07:26,854 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 12:07:26,890 INFO L263 TraceCheckSpWp]: Trace formula consists of 2390 conjuncts, 334 conjunts are in the unsatisfiable core [2022-03-04 12:07:26,915 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 12:07:41,116 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 12:07:41,222 INFO L134 CoverageAnalysis]: Checked inductivity of 108820 backedges. 0 proven. 107190 refuted. 0 times theorem prover too weak. 1630 trivial. 0 not checked. [2022-03-04 12:07:41,222 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 12:07:42,817 INFO L353 Elim1Store]: treesize reduction 5, result has 50.0 percent of original size [2022-03-04 12:07:42,818 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 12:07:43,476 INFO L134 CoverageAnalysis]: Checked inductivity of 108820 backedges. 0 proven. 105084 refuted. 0 times theorem prover too weak. 3736 trivial. 0 not checked. [2022-03-04 12:07:43,476 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1721328987] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 12:07:43,476 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 12:07:43,477 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [52, 167, 51] total 218 [2022-03-04 12:07:43,477 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196309819] [2022-03-04 12:07:43,477 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 12:07:43,479 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 219 states [2022-03-04 12:07:43,479 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 12:07:43,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 219 interpolants. [2022-03-04 12:07:43,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=610, Invalid=47132, Unknown=0, NotChecked=0, Total=47742 [2022-03-04 12:07:43,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 12:07:43,486 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 12:07:43,488 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 219 states, 219 states have (on average 4.831050228310502) internal successors, (1058), 218 states have internal predecessors, (1058), 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 12:07:43,489 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2022-03-04 12:07:43,489 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2022-03-04 12:07:43,491 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2022-03-04 12:07:43,495 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2022-03-04 12:07:43,495 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 12:07:53,727 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 3151 transitions and produced 2849 states. [2022-03-04 12:07:53,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-04 12:07:53,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-03-04 12:07:53,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-03-04 12:07:53,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-04 12:07:53,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-03-04 12:07:53,748 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 12:07:53,929 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 12:07:53,929 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-04 12:07:53,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 12:07:53,929 INFO L85 PathProgramCache]: Analyzing trace with hash -1735685431, now seen corresponding path program 6 times [2022-03-04 12:07:53,930 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 12:07:53,930 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012765679] [2022-03-04 12:07:53,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 12:07:53,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 12:07:55,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 12:07:57,353 INFO L134 CoverageAnalysis]: Checked inductivity of 168812 backedges. 0 proven. 164198 refuted. 0 times theorem prover too weak. 4614 trivial. 0 not checked. [2022-03-04 12:07:57,353 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 12:07:57,353 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012765679] [2022-03-04 12:07:57,353 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012765679] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 12:07:57,353 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1559746747] [2022-03-04 12:07:57,354 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-04 12:07:57,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 12:07:57,354 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 12:07:57,355 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 12:07:57,356 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 12:07:58,996 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 269 check-sat command(s) [2022-03-04 12:07:58,996 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 12:07:59,022 INFO L263 TraceCheckSpWp]: Trace formula consists of 2881 conjuncts, 120 conjunts are in the unsatisfiable core [2022-03-04 12:07:59,035 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 12:08:04,002 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 12:08:04,079 INFO L134 CoverageAnalysis]: Checked inductivity of 168812 backedges. 0 proven. 164102 refuted. 0 times theorem prover too weak. 4710 trivial. 0 not checked. [2022-03-04 12:08:04,079 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 12:08:05,950 INFO L353 Elim1Store]: treesize reduction 5, result has 50.0 percent of original size [2022-03-04 12:08:05,950 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 12:08:06,835 INFO L134 CoverageAnalysis]: Checked inductivity of 168812 backedges. 0 proven. 164102 refuted. 0 times theorem prover too weak. 4710 trivial. 0 not checked. [2022-03-04 12:08:06,835 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1559746747] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 12:08:06,835 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 12:08:06,836 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [62, 61, 61] total 122 [2022-03-04 12:08:06,836 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307818205] [2022-03-04 12:08:06,836 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 12:08:06,837 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 123 states [2022-03-04 12:08:06,838 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 12:08:06,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 123 interpolants. [2022-03-04 12:08:06,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=304, Invalid=14702, Unknown=0, NotChecked=0, Total=15006 [2022-03-04 12:08:06,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 12:08:06,839 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 12:08:06,839 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 123 states, 123 states have (on average 6.2439024390243905) internal successors, (768), 122 states have internal predecessors, (768), 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 12:08:06,839 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2022-03-04 12:08:06,839 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2022-03-04 12:08:06,840 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2022-03-04 12:08:06,840 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2022-03-04 12:08:06,840 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states. [2022-03-04 12:08:06,840 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 12:08:13,553 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 3696 transitions and produced 3333 states. [2022-03-04 12:08:13,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-04 12:08:13,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-03-04 12:08:13,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-03-04 12:08:13,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-04 12:08:13,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-03-04 12:08:13,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2022-03-04 12:08:13,578 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 12:08:13,754 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 12:08:13,755 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-04 12:08:13,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 12:08:13,755 INFO L85 PathProgramCache]: Analyzing trace with hash -1792799769, now seen corresponding path program 7 times [2022-03-04 12:08:13,755 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 12:08:13,756 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167209586] [2022-03-04 12:08:13,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 12:08:13,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 12:08:15,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 12:08:18,321 INFO L134 CoverageAnalysis]: Checked inductivity of 232342 backedges. 0 proven. 226983 refuted. 0 times theorem prover too weak. 5359 trivial. 0 not checked. [2022-03-04 12:08:18,322 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 12:08:18,322 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167209586] [2022-03-04 12:08:18,322 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [167209586] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 12:08:18,322 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [639786729] [2022-03-04 12:08:18,322 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-03-04 12:08:18,327 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 12:08:18,327 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 12:08:18,328 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 12:08:18,329 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 12:08:18,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 12:08:18,904 INFO L263 TraceCheckSpWp]: Trace formula consists of 3463 conjuncts, 140 conjunts are in the unsatisfiable core [2022-03-04 12:08:18,917 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 12:08:25,065 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 12:08:25,152 INFO L134 CoverageAnalysis]: Checked inductivity of 232342 backedges. 0 proven. 226887 refuted. 0 times theorem prover too weak. 5455 trivial. 0 not checked. [2022-03-04 12:08:25,152 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 12:08:27,328 INFO L353 Elim1Store]: treesize reduction 5, result has 50.0 percent of original size [2022-03-04 12:08:27,328 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 12:08:28,496 INFO L134 CoverageAnalysis]: Checked inductivity of 232342 backedges. 0 proven. 226887 refuted. 0 times theorem prover too weak. 5455 trivial. 0 not checked. [2022-03-04 12:08:28,497 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [639786729] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 12:08:28,497 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 12:08:28,497 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [72, 71, 71] total 142 [2022-03-04 12:08:28,498 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672136288] [2022-03-04 12:08:28,498 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 12:08:28,500 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 143 states [2022-03-04 12:08:28,500 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 12:08:28,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 143 interpolants. [2022-03-04 12:08:28,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=354, Invalid=19952, Unknown=0, NotChecked=0, Total=20306 [2022-03-04 12:08:28,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 12:08:28,502 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 12:08:28,503 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 143 states, 143 states have (on average 6.2727272727272725) internal successors, (897), 142 states have internal predecessors, (897), 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 12:08:28,503 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2022-03-04 12:08:28,503 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2022-03-04 12:08:28,503 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2022-03-04 12:08:28,503 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2022-03-04 12:08:28,503 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states. [2022-03-04 12:08:28,503 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 64 states. [2022-03-04 12:08:28,503 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 12:08:39,628 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 4250 transitions and produced 3826 states. [2022-03-04 12:08:39,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-04 12:08:39,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-03-04 12:08:39,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-03-04 12:08:39,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-04 12:08:39,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-03-04 12:08:39,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2022-03-04 12:08:39,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2022-03-04 12:08:39,662 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 12:08:39,829 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 12:08:39,830 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-04 12:08:39,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 12:08:39,831 INFO L85 PathProgramCache]: Analyzing trace with hash -830501691, now seen corresponding path program 8 times [2022-03-04 12:08:39,831 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 12:08:39,831 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185388116] [2022-03-04 12:08:39,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 12:08:39,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 12:08:42,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 12:08:47,019 INFO L134 CoverageAnalysis]: Checked inductivity of 307554 backedges. 0 proven. 301347 refuted. 0 times theorem prover too weak. 6207 trivial. 0 not checked. [2022-03-04 12:08:47,019 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 12:08:47,019 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185388116] [2022-03-04 12:08:47,019 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185388116] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 12:08:47,020 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1390225141] [2022-03-04 12:08:47,020 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-04 12:08:47,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 12:08:47,020 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 12:08:47,021 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 12:08:47,022 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 12:08:47,777 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-04 12:08:47,777 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 12:08:47,902 INFO L263 TraceCheckSpWp]: Trace formula consists of 3977 conjuncts, 866 conjunts are in the unsatisfiable core [2022-03-04 12:08:47,925 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 12:09:56,697 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 12:09:56,935 INFO L134 CoverageAnalysis]: Checked inductivity of 307554 backedges. 0 proven. 307554 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 12:09:56,936 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 12:09:59,767 INFO L353 Elim1Store]: treesize reduction 5, result has 50.0 percent of original size [2022-03-04 12:09:59,767 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 12:10:01,273 INFO L134 CoverageAnalysis]: Checked inductivity of 307554 backedges. 0 proven. 301251 refuted. 0 times theorem prover too weak. 6303 trivial. 0 not checked. [2022-03-04 12:10:01,274 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1390225141] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 12:10:01,274 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 12:10:01,274 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [82, 433, 81] total 514 [2022-03-04 12:10:01,275 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597467694] [2022-03-04 12:10:01,275 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 12:10:01,277 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 515 states [2022-03-04 12:10:01,277 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 12:10:01,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 515 interpolants. [2022-03-04 12:10:01,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1471, Invalid=263239, Unknown=0, NotChecked=0, Total=264710 [2022-03-04 12:10:01,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 12:10:01,288 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 12:10:01,289 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 515 states, 515 states have (on average 4.440776699029127) internal successors, (2287), 514 states have internal predecessors, (2287), 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 12:10:01,289 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2022-03-04 12:10:01,289 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2022-03-04 12:10:01,289 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2022-03-04 12:10:01,289 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2022-03-04 12:10:01,289 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states. [2022-03-04 12:10:01,289 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 64 states. [2022-03-04 12:10:01,290 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 74 states. [2022-03-04 12:10:01,290 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 12:10:34,592 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 4858 transitions and produced 4373 states. [2022-03-04 12:10:34,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-04 12:10:34,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-03-04 12:10:34,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-03-04 12:10:34,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-04 12:10:34,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-03-04 12:10:34,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2022-03-04 12:10:34,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2022-03-04 12:10:34,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2022-03-04 12:10:34,616 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-03-04 12:10:34,795 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 12:10:34,796 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-04 12:10:34,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 12:10:34,796 INFO L85 PathProgramCache]: Analyzing trace with hash -105747897, now seen corresponding path program 9 times [2022-03-04 12:10:34,797 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 12:10:34,797 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34635416] [2022-03-04 12:10:34,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 12:10:34,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 12:10:38,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 12:10:42,191 INFO L134 CoverageAnalysis]: Checked inductivity of 403945 backedges. 0 proven. 396820 refuted. 0 times theorem prover too weak. 7125 trivial. 0 not checked. [2022-03-04 12:10:42,191 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 12:10:42,191 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34635416] [2022-03-04 12:10:42,191 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34635416] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 12:10:42,191 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [666615804] [2022-03-04 12:10:42,191 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-04 12:10:42,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 12:10:42,192 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 12:10:42,193 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 12:10:42,193 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 12:10:46,388 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 416 check-sat command(s) [2022-03-04 12:10:46,388 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 12:10:46,438 INFO L263 TraceCheckSpWp]: Trace formula consists of 4536 conjuncts, 180 conjunts are in the unsatisfiable core [2022-03-04 12:10:46,454 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 12:10:55,785 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 12:10:55,896 INFO L134 CoverageAnalysis]: Checked inductivity of 403945 backedges. 0 proven. 396724 refuted. 0 times theorem prover too weak. 7221 trivial. 0 not checked. [2022-03-04 12:10:55,897 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 12:10:58,677 INFO L353 Elim1Store]: treesize reduction 5, result has 50.0 percent of original size [2022-03-04 12:10:58,678 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 12:11:00,235 INFO L134 CoverageAnalysis]: Checked inductivity of 403945 backedges. 0 proven. 396724 refuted. 0 times theorem prover too weak. 7221 trivial. 0 not checked. [2022-03-04 12:11:00,235 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [666615804] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 12:11:00,235 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 12:11:00,236 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [92, 91, 91] total 182 [2022-03-04 12:11:00,236 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185179743] [2022-03-04 12:11:00,236 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 12:11:00,238 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 183 states [2022-03-04 12:11:00,238 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 12:11:00,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 183 interpolants. [2022-03-04 12:11:00,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=454, Invalid=32852, Unknown=0, NotChecked=0, Total=33306 [2022-03-04 12:11:00,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 12:11:00,240 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 12:11:00,240 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 183 states, 183 states have (on average 6.316939890710382) internal successors, (1156), 182 states have internal predecessors, (1156), 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 12:11:00,240 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2022-03-04 12:11:00,240 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2022-03-04 12:11:00,240 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2022-03-04 12:11:00,240 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2022-03-04 12:11:00,240 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states. [2022-03-04 12:11:00,240 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 64 states. [2022-03-04 12:11:00,240 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 74 states. [2022-03-04 12:11:00,241 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 86 states. [2022-03-04 12:11:00,241 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 12:11:17,730 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 5430 transitions and produced 4884 states. [2022-03-04 12:11:17,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-04 12:11:17,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-03-04 12:11:17,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-03-04 12:11:17,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-04 12:11:17,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-03-04 12:11:17,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2022-03-04 12:11:17,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2022-03-04 12:11:17,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2022-03-04 12:11:17,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2022-03-04 12:11:17,767 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2022-03-04 12:11:17,932 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 12:11:17,932 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-04 12:11:17,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 12:11:17,933 INFO L85 PathProgramCache]: Analyzing trace with hash 82812893, now seen corresponding path program 10 times [2022-03-04 12:11:17,933 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 12:11:17,933 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676127432] [2022-03-04 12:11:17,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 12:11:17,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 12:11:24,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 12:11:29,954 INFO L134 CoverageAnalysis]: Checked inductivity of 505429 backedges. 0 proven. 497422 refuted. 0 times theorem prover too weak. 8007 trivial. 0 not checked. [2022-03-04 12:11:29,955 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 12:11:29,955 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676127432] [2022-03-04 12:11:29,955 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676127432] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 12:11:29,955 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1688285260] [2022-03-04 12:11:29,955 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-04 12:11:29,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 12:11:29,956 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 12:11:29,957 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 12:11:29,957 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 12:11:31,110 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-04 12:11:31,111 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 12:11:31,355 INFO L263 TraceCheckSpWp]: Trace formula consists of 5077 conjuncts, 200 conjunts are in the unsatisfiable core [2022-03-04 12:11:31,377 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 12:11:43,934 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 12:11:44,060 INFO L134 CoverageAnalysis]: Checked inductivity of 505429 backedges. 0 proven. 497326 refuted. 0 times theorem prover too weak. 8103 trivial. 0 not checked. [2022-03-04 12:11:44,061 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 12:11:47,283 INFO L353 Elim1Store]: treesize reduction 5, result has 50.0 percent of original size [2022-03-04 12:11:47,284 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 12:11:49,552 INFO L134 CoverageAnalysis]: Checked inductivity of 505429 backedges. 0 proven. 497326 refuted. 0 times theorem prover too weak. 8103 trivial. 0 not checked. [2022-03-04 12:11:49,552 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1688285260] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 12:11:49,553 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 12:11:49,553 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [102, 101, 101] total 202 [2022-03-04 12:11:49,554 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979920099] [2022-03-04 12:11:49,554 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 12:11:49,557 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 203 states [2022-03-04 12:11:49,557 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 12:11:49,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 203 interpolants. [2022-03-04 12:11:49,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=504, Invalid=40502, Unknown=0, NotChecked=0, Total=41006 [2022-03-04 12:11:49,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 12:11:49,562 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 12:11:49,563 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 203 states, 203 states have (on average 6.330049261083744) internal successors, (1285), 202 states have internal predecessors, (1285), 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 12:11:49,563 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2022-03-04 12:11:49,563 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2022-03-04 12:11:49,563 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2022-03-04 12:11:49,563 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2022-03-04 12:11:49,563 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states. [2022-03-04 12:11:49,563 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 64 states. [2022-03-04 12:11:49,563 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 74 states. [2022-03-04 12:11:49,563 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 86 states. [2022-03-04 12:11:49,564 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 94 states. [2022-03-04 12:11:49,564 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 12:12:14,280 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 6020 transitions and produced 5413 states. [2022-03-04 12:12:14,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-04 12:12:14,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-03-04 12:12:14,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-03-04 12:12:14,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-04 12:12:14,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-03-04 12:12:14,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2022-03-04 12:12:14,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2022-03-04 12:12:14,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2022-03-04 12:12:14,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2022-03-04 12:12:14,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2022-03-04 12:12:14,321 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 12:12:14,491 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 12:12:14,492 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-04 12:12:14,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 12:12:14,492 INFO L85 PathProgramCache]: Analyzing trace with hash -290838361, now seen corresponding path program 11 times [2022-03-04 12:12:14,492 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 12:12:14,493 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183477676] [2022-03-04 12:12:14,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 12:12:14,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 12:12:21,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 12:12:27,600 INFO L134 CoverageAnalysis]: Checked inductivity of 622704 backedges. 0 proven. 613797 refuted. 0 times theorem prover too weak. 8907 trivial. 0 not checked. [2022-03-04 12:12:27,600 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 12:12:27,600 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183477676] [2022-03-04 12:12:27,601 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183477676] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 12:12:27,601 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [437465269] [2022-03-04 12:12:27,601 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-04 12:12:27,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 12:12:27,601 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 12:12:27,613 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 12:12:27,614 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 12:12:34,366 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 521 check-sat command(s) [2022-03-04 12:12:34,366 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 12:12:34,741 INFO L263 TraceCheckSpWp]: Trace formula consists of 5627 conjuncts, 220 conjunts are in the unsatisfiable core [2022-03-04 12:12:34,757 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 12:12:48,459 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 12:12:48,597 INFO L134 CoverageAnalysis]: Checked inductivity of 622704 backedges. 0 proven. 613701 refuted. 0 times theorem prover too weak. 9003 trivial. 0 not checked. [2022-03-04 12:12:48,598 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 12:12:53,004 INFO L353 Elim1Store]: treesize reduction 5, result has 50.0 percent of original size [2022-03-04 12:12:53,004 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 12:12:55,830 INFO L134 CoverageAnalysis]: Checked inductivity of 622704 backedges. 0 proven. 613701 refuted. 0 times theorem prover too weak. 9003 trivial. 0 not checked. [2022-03-04 12:12:55,831 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [437465269] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 12:12:55,831 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 12:12:55,832 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [112, 111, 111] total 222 [2022-03-04 12:12:55,832 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915410628] [2022-03-04 12:12:55,832 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 12:12:55,834 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 223 states [2022-03-04 12:12:55,834 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 12:12:55,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 223 interpolants. [2022-03-04 12:12:55,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=554, Invalid=48952, Unknown=0, NotChecked=0, Total=49506 [2022-03-04 12:12:55,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 12:12:55,837 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 12:12:55,838 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 223 states, 223 states have (on average 6.345291479820628) internal successors, (1415), 222 states have internal predecessors, (1415), 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 12:12:55,838 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2022-03-04 12:12:55,838 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2022-03-04 12:12:55,838 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2022-03-04 12:12:55,838 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2022-03-04 12:12:55,838 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states. [2022-03-04 12:12:55,838 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 64 states. [2022-03-04 12:12:55,838 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 74 states. [2022-03-04 12:12:55,838 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 86 states. [2022-03-04 12:12:55,838 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 94 states. [2022-03-04 12:12:55,838 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 104 states. [2022-03-04 12:12:55,838 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 12:13:23,019 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 6610 transitions and produced 5942 states. [2022-03-04 12:13:23,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-04 12:13:23,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-03-04 12:13:23,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-03-04 12:13:23,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-04 12:13:23,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-03-04 12:13:23,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2022-03-04 12:13:23,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2022-03-04 12:13:23,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2022-03-04 12:13:23,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2022-03-04 12:13:23,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2022-03-04 12:13:23,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 114 states. [2022-03-04 12:13:23,059 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 12:13:23,221 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 12:13:23,222 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-04 12:13:23,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 12:13:23,223 INFO L85 PathProgramCache]: Analyzing trace with hash 1098997493, now seen corresponding path program 12 times [2022-03-04 12:13:23,223 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 12:13:23,223 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118474401] [2022-03-04 12:13:23,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 12:13:23,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 12:13:31,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 12:13:38,502 INFO L134 CoverageAnalysis]: Checked inductivity of 752204 backedges. 0 proven. 742397 refuted. 0 times theorem prover too weak. 9807 trivial. 0 not checked. [2022-03-04 12:13:38,503 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 12:13:38,503 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118474401] [2022-03-04 12:13:38,503 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118474401] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 12:13:38,503 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [378973132] [2022-03-04 12:13:38,503 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-04 12:13:38,504 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 12:13:38,504 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 12:13:38,505 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 12:13:38,506 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-03-04 12:13:50,662 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 562 check-sat command(s) [2022-03-04 12:13:50,662 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 12:13:50,825 INFO L263 TraceCheckSpWp]: Trace formula consists of 6118 conjuncts, 240 conjunts are in the unsatisfiable core [2022-03-04 12:13:50,849 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 12:14:08,871 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 12:14:09,061 INFO L134 CoverageAnalysis]: Checked inductivity of 752204 backedges. 0 proven. 742301 refuted. 0 times theorem prover too weak. 9903 trivial. 0 not checked. [2022-03-04 12:14:09,061 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 12:14:15,061 INFO L353 Elim1Store]: treesize reduction 5, result has 50.0 percent of original size [2022-03-04 12:14:15,062 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 12:14:18,299 INFO L134 CoverageAnalysis]: Checked inductivity of 752204 backedges. 0 proven. 742301 refuted. 0 times theorem prover too weak. 9903 trivial. 0 not checked. [2022-03-04 12:14:18,300 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [378973132] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 12:14:18,300 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 12:14:18,301 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [122, 121, 121] total 242 [2022-03-04 12:14:18,301 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748277145] [2022-03-04 12:14:18,301 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 12:14:18,304 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 243 states [2022-03-04 12:14:18,304 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 12:14:18,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 243 interpolants. [2022-03-04 12:14:18,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=604, Invalid=58202, Unknown=0, NotChecked=0, Total=58806 [2022-03-04 12:14:18,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 12:14:18,308 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 12:14:18,310 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 243 states, 243 states have (on average 6.3580246913580245) internal successors, (1545), 242 states have internal predecessors, (1545), 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 12:14:18,310 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2022-03-04 12:14:18,310 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2022-03-04 12:14:18,310 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2022-03-04 12:14:18,310 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2022-03-04 12:14:18,310 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states. [2022-03-04 12:14:18,310 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 64 states. [2022-03-04 12:14:18,310 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 74 states. [2022-03-04 12:14:18,310 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 86 states. [2022-03-04 12:14:18,310 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 94 states. [2022-03-04 12:14:18,310 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 104 states. [2022-03-04 12:14:18,310 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 114 states. [2022-03-04 12:14:18,310 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 12:14:56,029 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 7200 transitions and produced 6471 states. [2022-03-04 12:14:56,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-04 12:14:56,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-03-04 12:14:56,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-03-04 12:14:56,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-04 12:14:56,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-03-04 12:14:56,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2022-03-04 12:14:56,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2022-03-04 12:14:56,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2022-03-04 12:14:56,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2022-03-04 12:14:56,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2022-03-04 12:14:56,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 114 states. [2022-03-04 12:14:56,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 124 states. [2022-03-04 12:14:56,073 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-03-04 12:14:56,232 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-03-04 12:14:56,234 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-04 12:14:56,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 12:14:56,235 INFO L85 PathProgramCache]: Analyzing trace with hash 1825973135, now seen corresponding path program 13 times [2022-03-04 12:14:56,235 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 12:14:56,236 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587227469] [2022-03-04 12:14:56,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 12:14:56,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 12:15:09,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 12:15:17,336 INFO L134 CoverageAnalysis]: Checked inductivity of 893929 backedges. 0 proven. 883222 refuted. 0 times theorem prover too weak. 10707 trivial. 0 not checked. [2022-03-04 12:15:17,336 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 12:15:17,336 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587227469] [2022-03-04 12:15:17,336 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587227469] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 12:15:17,337 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1784243230] [2022-03-04 12:15:17,337 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-03-04 12:15:17,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 12:15:17,337 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 12:15:17,338 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 12:15:17,338 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-03-04 12:15:18,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 12:15:19,361 INFO L263 TraceCheckSpWp]: Trace formula consists of 6727 conjuncts, 260 conjunts are in the unsatisfiable core [2022-03-04 12:15:19,380 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 12:15:37,430 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 12:15:37,600 INFO L134 CoverageAnalysis]: Checked inductivity of 893929 backedges. 0 proven. 883126 refuted. 0 times theorem prover too weak. 10803 trivial. 0 not checked. [2022-03-04 12:15:37,600 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 12:15:41,939 INFO L353 Elim1Store]: treesize reduction 5, result has 50.0 percent of original size [2022-03-04 12:15:41,939 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 12:15:45,223 INFO L134 CoverageAnalysis]: Checked inductivity of 893929 backedges. 0 proven. 883126 refuted. 0 times theorem prover too weak. 10803 trivial. 0 not checked. [2022-03-04 12:15:45,224 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1784243230] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 12:15:45,224 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 12:15:45,224 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [132, 131, 131] total 262 [2022-03-04 12:15:45,224 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302912526] [2022-03-04 12:15:45,225 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 12:15:45,227 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 263 states [2022-03-04 12:15:45,227 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 12:15:45,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 263 interpolants. [2022-03-04 12:15:45,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=656, Invalid=68250, Unknown=0, NotChecked=0, Total=68906 [2022-03-04 12:15:45,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 12:15:45,231 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 12:15:45,232 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 263 states, 263 states have (on average 6.3688212927756656) internal successors, (1675), 262 states have internal predecessors, (1675), 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 12:15:45,232 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2022-03-04 12:15:45,232 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2022-03-04 12:15:45,232 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2022-03-04 12:15:45,232 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2022-03-04 12:15:45,232 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states. [2022-03-04 12:15:45,232 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 64 states. [2022-03-04 12:15:45,232 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 74 states. [2022-03-04 12:15:45,232 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 86 states. [2022-03-04 12:15:45,232 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 94 states. [2022-03-04 12:15:45,232 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 104 states. [2022-03-04 12:15:45,232 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 114 states. [2022-03-04 12:15:45,232 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 124 states. [2022-03-04 12:15:45,232 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 12:16:26,312 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 7790 transitions and produced 7000 states. [2022-03-04 12:16:26,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-04 12:16:26,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-03-04 12:16:26,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-03-04 12:16:26,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-04 12:16:26,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-03-04 12:16:26,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2022-03-04 12:16:26,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2022-03-04 12:16:26,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2022-03-04 12:16:26,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2022-03-04 12:16:26,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2022-03-04 12:16:26,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 114 states. [2022-03-04 12:16:26,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 124 states. [2022-03-04 12:16:26,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 134 states. [2022-03-04 12:16:26,359 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-03-04 12:16:26,514 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 12:16:26,514 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-04 12:16:26,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 12:16:26,516 INFO L85 PathProgramCache]: Analyzing trace with hash -1650243059, now seen corresponding path program 14 times [2022-03-04 12:16:26,516 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 12:16:26,516 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466962273] [2022-03-04 12:16:26,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 12:16:26,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 12:16:44,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 12:16:54,643 INFO L134 CoverageAnalysis]: Checked inductivity of 1047879 backedges. 0 proven. 1036272 refuted. 0 times theorem prover too weak. 11607 trivial. 0 not checked. [2022-03-04 12:16:54,643 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 12:16:54,644 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466962273] [2022-03-04 12:16:54,644 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466962273] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 12:16:54,644 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [486356052] [2022-03-04 12:16:54,644 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-04 12:16:54,644 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 12:16:54,644 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 12:16:54,645 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 12:16:54,646 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-03-04 12:16:57,238 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-04 12:16:57,238 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 12:16:57,960 INFO L263 TraceCheckSpWp]: Trace formula consists of 7277 conjuncts, 1586 conjunts are in the unsatisfiable core [2022-03-04 12:16:57,993 INFO L286 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2022-03-04 12:18:59,156 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (2 of 3 remaining) [2022-03-04 12:18:59,181 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-04 12:18:59,181 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 12:18:59,181 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 12:18:59,200 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-03-04 12:18:59,356 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 12:18:59,357 WARN L594 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 3242 with TraceHistMax 720,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 675 known predicates. [2022-03-04 12:18:59,359 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-03-04 12:18:59,360 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-03-04 12:18:59,364 INFO L732 BasicCegarLoop]: Path program histogram: [14] [2022-03-04 12:18:59,366 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-04 12:18:59,367 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-04 12:18:59,369 INFO L202 PluginConnector]: Adding new model queue-add-2-nl.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.03 12:18:59 BasicIcfg [2022-03-04 12:18:59,369 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-04 12:18:59,369 INFO L158 Benchmark]: Toolchain (without parser) took 728511.19ms. Allocated memory was 191.9MB in the beginning and 2.2GB in the end (delta: 2.0GB). Free memory was 156.8MB in the beginning and 1.1GB in the end (delta: -946.0MB). Peak memory consumption was 1.1GB. Max. memory is 8.0GB. [2022-03-04 12:18:59,369 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.09ms. Allocated memory is still 191.9MB. Free memory is still 158.0MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-04 12:18:59,370 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.90ms. Allocated memory is still 191.9MB. Free memory was 156.8MB in the beginning and 155.3MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-04 12:18:59,370 INFO L158 Benchmark]: Boogie Preprocessor took 15.19ms. Allocated memory is still 191.9MB. Free memory was 155.3MB in the beginning and 154.2MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-04 12:18:59,370 INFO L158 Benchmark]: RCFGBuilder took 239.91ms. Allocated memory is still 191.9MB. Free memory was 154.2MB in the beginning and 144.8MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-03-04 12:18:59,370 INFO L158 Benchmark]: TraceAbstraction took 728225.59ms. Allocated memory was 191.9MB in the beginning and 2.2GB in the end (delta: 2.0GB). Free memory was 144.2MB in the beginning and 1.1GB in the end (delta: -958.5MB). Peak memory consumption was 1.0GB. Max. memory is 8.0GB. [2022-03-04 12:18:59,372 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 191.9MB. Free memory is still 158.0MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 23.90ms. Allocated memory is still 191.9MB. Free memory was 156.8MB in the beginning and 155.3MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 15.19ms. Allocated memory is still 191.9MB. Free memory was 155.3MB in the beginning and 154.2MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 239.91ms. Allocated memory is still 191.9MB. Free memory was 154.2MB in the beginning and 144.8MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 728225.59ms. Allocated memory was 191.9MB in the beginning and 2.2GB in the end (delta: 2.0GB). Free memory was 144.2MB in the beginning and 1.1GB in the end (delta: -958.5MB). Peak memory consumption was 1.0GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1, Independence queries for same thread: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 66]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PartialOrderCegarLoop was analyzing trace of length 3242 with TraceHistMax 720,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 675 known predicates. - TimeoutResultAtElement [Line: 61]: 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 3242 with TraceHistMax 720,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 675 known predicates. - TimeoutResultAtElement [Line: 61]: 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 3242 with TraceHistMax 720,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 675 known predicates. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 48 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 728.1s, OverallIterations: 14, TraceHistogramMax: 0, PathProgramHistogramMax: 14, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 220.3s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 1005, 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: 1.2s SsaConstructionTime, 75.9s SatisfiabilityAnalysisTime, 274.0s InterpolantComputationTime, 40500 NumberOfCodeBlocks, 40429 NumberOfCodeBlocksAsserted, 2143 NumberOfCheckSat, 60711 ConstructedInterpolants, 0 QuantifiedInterpolants, 487400 SizeOfPredicates, 42 NumberOfNonLiveVariables, 45324 ConjunctsInSsa, 2974 ConjunctsInUnsatCore, 39 InterpolantComputations, 0 PerfectInterpolantSequences, 208122/12338244 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