/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-POR-NewStatesSleepPersistentFixedOrder-NoLbe-Random521.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/unroll-cond-4.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-8a14012e553caa636f65c1137831746b6d9875cd-8a14012 [2021-08-08 04:05:28,225 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-08 04:05:28,227 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-08 04:05:28,251 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-08-08 04:05:28,282 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-POR-NewStatesSleepPersistentFixedOrder-NoLbe-Random521.epf [2021-08-08 04:05:28,302 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-08 04:05:28,302 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-08 04:05:28,303 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-08 04:05:28,303 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-08 04:05:28,304 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-08 04:05:28,304 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-08 04:05:28,304 INFO L138 SettingsManager]: * Use SBE=true [2021-08-08 04:05:28,304 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-08 04:05:28,304 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-08 04:05:28,305 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-08 04:05:28,305 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-08 04:05:28,305 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-08 04:05:28,305 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-08 04:05:28,305 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-08 04:05:28,305 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-08 04:05:28,306 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-08 04:05:28,306 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-08 04:05:28,306 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-08 04:05:28,306 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-08 04:05:28,306 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-08 04:05:28,306 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-08 04:05:28,307 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-08 04:05:28,307 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-08 04:05:28,307 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-08 04:05:28,307 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-08 04:05:28,307 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-08 04:05:28,307 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-08 04:05:28,308 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-08 04:05:28,308 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-08-08 04:05:28,308 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-08 04:05:28,308 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-08 04:05:28,308 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-08-08 04:05:28,309 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-08 04:05:28,309 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-08-08 04:05:28,309 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-08 04:05:28,309 INFO L138 SettingsManager]: * Random seed used by POR DFS order=521 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-08 04:05:28,657 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-08 04:05:28,685 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-08 04:05:28,687 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-08 04:05:28,689 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-08-08 04:05:28,690 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-08-08 04:05:28,691 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/unroll-cond-4.wvr.bpl [2021-08-08 04:05:28,692 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/unroll-cond-4.wvr.bpl' [2021-08-08 04:05:28,733 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-08 04:05:28,734 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-08-08 04:05:28,736 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-08 04:05:28,736 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-08 04:05:28,736 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-08 04:05:28,748 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "unroll-cond-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 08.08 04:05:28" (1/1) ... [2021-08-08 04:05:28,757 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "unroll-cond-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 08.08 04:05:28" (1/1) ... [2021-08-08 04:05:28,764 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-08 04:05:28,766 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-08 04:05:28,766 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-08 04:05:28,766 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-08 04:05:28,772 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "unroll-cond-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 08.08 04:05:28" (1/1) ... [2021-08-08 04:05:28,773 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "unroll-cond-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 08.08 04:05:28" (1/1) ... [2021-08-08 04:05:28,781 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "unroll-cond-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 08.08 04:05:28" (1/1) ... [2021-08-08 04:05:28,781 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "unroll-cond-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 08.08 04:05:28" (1/1) ... [2021-08-08 04:05:28,786 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "unroll-cond-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 08.08 04:05:28" (1/1) ... [2021-08-08 04:05:28,790 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "unroll-cond-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 08.08 04:05:28" (1/1) ... [2021-08-08 04:05:28,791 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "unroll-cond-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 08.08 04:05:28" (1/1) ... [2021-08-08 04:05:28,795 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-08 04:05:28,797 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-08 04:05:28,797 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-08 04:05:28,797 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-08 04:05:28,798 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "unroll-cond-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 08.08 04:05:28" (1/1) ... [2021-08-08 04:05:28,804 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-08 04:05:28,811 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-08 04:05:28,826 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) [2021-08-08 04:05:28,855 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 [2021-08-08 04:05:28,871 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-08-08 04:05:28,871 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-08-08 04:05:28,871 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-08-08 04:05:28,871 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-08-08 04:05:28,871 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-08-08 04:05:28,872 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-08-08 04:05:28,872 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-08-08 04:05:28,872 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-08 04:05:28,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-08 04:05:28,873 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-08-08 04:05:29,262 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-08 04:05:29,262 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-08-08 04:05:29,263 WARN L329 CfgBuilder]: Unexpected successor node of atomic block begin: thread1EXIT is neither atomic block end nor error location. [2021-08-08 04:05:29,265 INFO L202 PluginConnector]: Adding new model unroll-cond-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.08 04:05:29 BoogieIcfgContainer [2021-08-08 04:05:29,265 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-08 04:05:29,266 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-08 04:05:29,267 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-08 04:05:29,269 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-08 04:05:29,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "unroll-cond-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 08.08 04:05:28" (1/2) ... [2021-08-08 04:05:29,270 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61a6a191 and model type unroll-cond-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.08 04:05:29, skipping insertion in model container [2021-08-08 04:05:29,270 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "unroll-cond-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.08 04:05:29" (2/2) ... [2021-08-08 04:05:29,271 INFO L111 eAbstractionObserver]: Analyzing ICFG unroll-cond-4.wvr.bpl [2021-08-08 04:05:29,275 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-08-08 04:05:29,275 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-08 04:05:29,275 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-08 04:05:29,276 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-08 04:05:29,298 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-08-08 04:05:29,335 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-08-08 04:05:29,336 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-08 04:05:29,337 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) [2021-08-08 04:05:29,350 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 [2021-08-08 04:05:29,386 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-08-08 04:05:29,393 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, mConcurrency=PARTIAL_ORDER_FA, 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 [2021-08-08 04:05:29,394 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-08-08 04:05:29,464 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-08-08 04:05:29,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-08 04:05:29,468 INFO L82 PathProgramCache]: Analyzing trace with hash -1075696567, now seen corresponding path program 1 times [2021-08-08 04:05:29,475 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-08 04:05:29,475 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307312278] [2021-08-08 04:05:29,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-08 04:05:29,476 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-08 04:05:29,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-08 04:05:29,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-08 04:05:29,708 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-08 04:05:29,708 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307312278] [2021-08-08 04:05:29,709 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307312278] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-08 04:05:29,709 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-08 04:05:29,709 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-08 04:05:29,711 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144868821] [2021-08-08 04:05:29,715 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-08 04:05:29,715 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-08 04:05:29,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-08 04:05:29,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-08 04:05:29,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-08 04:05:29,732 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-08 04:05:29,734 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 4 states have internal predecessors, (10), 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) [2021-08-08 04:05:29,734 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-08 04:05:29,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-08 04:05:29,779 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-08 04:05:29,780 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-08-08 04:05:29,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-08 04:05:29,783 INFO L82 PathProgramCache]: Analyzing trace with hash -883720444, now seen corresponding path program 1 times [2021-08-08 04:05:29,783 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-08 04:05:29,783 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881562610] [2021-08-08 04:05:29,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-08 04:05:29,784 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-08 04:05:29,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-08 04:05:30,180 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-08 04:05:30,180 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-08 04:05:30,181 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881562610] [2021-08-08 04:05:30,181 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881562610] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-08 04:05:30,181 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [771006057] [2021-08-08 04:05:30,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-08 04:05:30,182 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-08 04:05:30,182 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-08 04:05:30,183 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) [2021-08-08 04:05:30,185 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-08-08 04:05:30,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-08 04:05:30,230 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 16 conjunts are in the unsatisfiable core [2021-08-08 04:05:30,234 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-08 04:06:02,881 WARN L207 SmtUtils]: Spent 32.41 s on a formula simplification. DAG size of input: 612 DAG size of output: 41 [2021-08-08 04:07:05,383 WARN L207 SmtUtils]: Spent 31.19 s on a formula simplification. DAG size of input: 612 DAG size of output: 41 [2021-08-08 04:07:05,425 INFO L388 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 [2021-08-08 04:07:05,467 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-08 04:07:05,467 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [771006057] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-08 04:07:05,467 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-08 04:07:05,467 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2021-08-08 04:07:05,468 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434086969] [2021-08-08 04:07:05,468 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-08-08 04:07:05,469 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-08 04:07:05,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-08-08 04:07:05,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-08-08 04:07:05,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-08 04:07:05,470 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-08 04:07:05,470 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 8 states have internal predecessors, (17), 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) [2021-08-08 04:07:05,470 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-08-08 04:07:05,470 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-08 04:07:05,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-08 04:07:05,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-08 04:07:05,535 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-08-08 04:07:05,721 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-08-08 04:07:05,721 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-08-08 04:07:05,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-08 04:07:05,722 INFO L82 PathProgramCache]: Analyzing trace with hash 772572073, now seen corresponding path program 2 times [2021-08-08 04:07:05,722 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-08 04:07:05,722 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22871328] [2021-08-08 04:07:05,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-08 04:07:05,722 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-08 04:07:05,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-08 04:07:06,031 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-08 04:07:06,032 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-08 04:07:06,032 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22871328] [2021-08-08 04:07:06,032 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22871328] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-08 04:07:06,033 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1358360600] [2021-08-08 04:07:06,033 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-08 04:07:06,033 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-08 04:07:06,034 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-08 04:07:06,037 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) [2021-08-08 04:07:06,066 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-08-08 04:07:06,093 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-08 04:07:06,094 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-08 04:07:06,094 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 20 conjunts are in the unsatisfiable core [2021-08-08 04:07:06,096 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-08 04:07:07,050 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-08 04:07:07,051 INFO L388 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 18 [2021-08-08 04:07:07,088 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-08 04:07:07,088 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1358360600] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-08 04:07:07,089 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-08 04:07:07,089 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2021-08-08 04:07:07,089 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783993653] [2021-08-08 04:07:07,089 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-08-08 04:07:07,089 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-08 04:07:07,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-08-08 04:07:07,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2021-08-08 04:07:07,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-08 04:07:07,090 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-08 04:07:07,091 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 1.7272727272727273) internal successors, (19), 10 states have internal predecessors, (19), 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) [2021-08-08 04:07:07,091 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-08-08 04:07:07,091 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-08 04:07:07,091 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-08 04:07:07,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-08 04:07:07,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-08 04:07:07,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-08 04:07:07,165 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-08-08 04:07:07,360 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-08 04:07:07,361 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-08-08 04:07:07,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-08 04:07:07,362 INFO L82 PathProgramCache]: Analyzing trace with hash 578032548, now seen corresponding path program 3 times [2021-08-08 04:07:07,362 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-08 04:07:07,362 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085020665] [2021-08-08 04:07:07,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-08 04:07:07,362 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-08 04:07:07,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-08 04:07:07,511 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-08 04:07:07,511 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-08 04:07:07,511 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085020665] [2021-08-08 04:07:07,511 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085020665] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-08 04:07:07,511 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1205900055] [2021-08-08 04:07:07,512 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-08-08 04:07:07,512 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-08 04:07:07,513 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-08 04:07:07,517 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) [2021-08-08 04:07:07,546 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-08-08 04:07:07,591 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-08-08 04:07:07,591 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-08 04:07:07,592 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 19 conjunts are in the unsatisfiable core [2021-08-08 04:07:07,593 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-08 04:07:38,495 WARN L207 SmtUtils]: Spent 30.68 s on a formula simplification. DAG size of input: 1619 DAG size of output: 40 [2021-08-08 04:08:39,502 WARN L207 SmtUtils]: Spent 30.49 s on a formula simplification. DAG size of input: 1619 DAG size of output: 40 [2021-08-08 04:08:39,580 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-08 04:08:39,580 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 75 treesize of output 87 [2021-08-08 04:08:39,675 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-08 04:08:39,675 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1205900055] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-08 04:08:39,676 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-08 04:08:39,676 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2021-08-08 04:08:39,676 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168666651] [2021-08-08 04:08:39,676 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-08-08 04:08:39,676 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-08 04:08:39,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-08-08 04:08:39,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-08-08 04:08:39,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-08 04:08:39,677 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-08 04:08:39,678 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 1.9090909090909092) internal successors, (21), 10 states have internal predecessors, (21), 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) [2021-08-08 04:08:39,678 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-08-08 04:08:39,678 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-08 04:08:39,678 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-08-08 04:08:39,678 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-08 04:08:39,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-08 04:08:39,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-08 04:08:39,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-08 04:08:39,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-08 04:08:39,777 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-08-08 04:08:39,964 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-08 04:08:39,965 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-08-08 04:08:39,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-08 04:08:39,965 INFO L82 PathProgramCache]: Analyzing trace with hash -1157725431, now seen corresponding path program 4 times [2021-08-08 04:08:39,966 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-08 04:08:39,966 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705393134] [2021-08-08 04:08:39,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-08 04:08:39,966 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-08 04:08:39,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-08 04:08:40,022 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-08 04:08:40,022 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-08 04:08:40,022 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705393134] [2021-08-08 04:08:40,022 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705393134] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-08 04:08:40,022 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [90579142] [2021-08-08 04:08:40,022 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-08-08 04:08:40,023 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-08 04:08:40,023 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-08 04:08:40,024 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) [2021-08-08 04:08:40,025 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-08-08 04:08:40,103 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-08-08 04:08:40,104 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-08 04:08:40,104 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 6 conjunts are in the unsatisfiable core [2021-08-08 04:08:40,105 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-08 04:08:40,193 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-08 04:08:40,194 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [90579142] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-08 04:08:40,194 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-08 04:08:40,194 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2021-08-08 04:08:40,194 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537461660] [2021-08-08 04:08:40,194 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-08 04:08:40,194 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-08 04:08:40,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-08 04:08:40,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-08-08 04:08:40,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-08 04:08:40,195 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-08 04:08:40,195 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 7 states have internal predecessors, (17), 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) [2021-08-08 04:08:40,195 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-08-08 04:08:40,196 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-08 04:08:40,196 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-08-08 04:08:40,196 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-08-08 04:08:40,196 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-08 04:08:40,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-08 04:08:40,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-08 04:08:40,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-08 04:08:40,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-08 04:08:40,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-08 04:08:40,253 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2021-08-08 04:08:40,437 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-08 04:08:40,437 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-08-08 04:08:40,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-08 04:08:40,437 INFO L82 PathProgramCache]: Analyzing trace with hash -704131082, now seen corresponding path program 1 times [2021-08-08 04:08:40,438 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-08 04:08:40,438 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195223272] [2021-08-08 04:08:40,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-08 04:08:40,438 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-08 04:08:40,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-08 04:08:40,568 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-08 04:08:40,568 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-08 04:08:40,568 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195223272] [2021-08-08 04:08:40,568 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [195223272] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-08 04:08:40,568 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1805549715] [2021-08-08 04:08:40,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-08 04:08:40,568 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-08 04:08:40,569 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-08 04:08:40,569 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) [2021-08-08 04:08:40,570 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-08-08 04:08:40,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-08 04:08:40,655 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 26 conjunts are in the unsatisfiable core [2021-08-08 04:08:40,656 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-08 04:08:41,548 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-08 04:08:41,549 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 13 new quantified variables, introduced 21 case distinctions, treesize of input 109 treesize of output 243 [2021-08-08 04:08:43,637 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-08 04:08:43,637 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1805549715] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-08 04:08:43,637 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-08 04:08:43,637 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2021-08-08 04:08:43,637 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230217481] [2021-08-08 04:08:43,638 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-08-08 04:08:43,638 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-08 04:08:43,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-08-08 04:08:43,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2021-08-08 04:08:43,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-08 04:08:43,640 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-08 04:08:43,640 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 16 states have internal predecessors, (25), 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) [2021-08-08 04:08:43,640 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-08-08 04:08:43,640 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-08 04:08:43,640 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-08-08 04:08:43,641 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-08-08 04:08:43,641 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-08-08 04:08:43,641 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-08 04:08:43,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-08 04:08:43,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-08 04:08:43,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-08 04:08:43,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-08 04:08:43,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-08 04:08:43,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-08 04:08:43,789 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-08-08 04:08:43,973 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-08 04:08:43,974 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-08-08 04:08:43,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-08 04:08:43,974 INFO L82 PathProgramCache]: Analyzing trace with hash 1974729243, now seen corresponding path program 2 times [2021-08-08 04:08:43,974 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-08 04:08:43,975 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634865053] [2021-08-08 04:08:43,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-08 04:08:43,975 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-08 04:08:43,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-08 04:08:44,193 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-08 04:08:44,194 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-08 04:08:44,194 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634865053] [2021-08-08 04:08:44,194 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634865053] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-08 04:08:44,194 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1598470141] [2021-08-08 04:08:44,194 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-08 04:08:44,194 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-08 04:08:44,194 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-08 04:08:44,195 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) [2021-08-08 04:08:44,196 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-08-08 04:08:44,308 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-08 04:08:44,308 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-08 04:08:44,309 WARN L261 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 36 conjunts are in the unsatisfiable core [2021-08-08 04:08:44,310 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-08 04:08:46,516 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-08 04:08:46,516 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 9 new quantified variables, introduced 10 case distinctions, treesize of input 27 treesize of output 99 [2021-08-08 04:08:46,727 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-08 04:08:46,727 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1598470141] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-08 04:08:46,727 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-08 04:08:46,727 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2021-08-08 04:08:46,727 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387792586] [2021-08-08 04:08:46,728 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-08-08 04:08:46,728 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-08 04:08:46,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-08-08 04:08:46,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2021-08-08 04:08:46,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-08 04:08:46,728 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-08 04:08:46,728 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 1.4210526315789473) internal successors, (27), 18 states have internal predecessors, (27), 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) [2021-08-08 04:08:46,728 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-08-08 04:08:46,729 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-08 04:08:46,729 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-08-08 04:08:46,729 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-08-08 04:08:46,729 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-08-08 04:08:46,729 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-08-08 04:08:46,729 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-08 04:08:46,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-08 04:08:46,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-08 04:08:46,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-08 04:08:46,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-08 04:08:46,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-08 04:08:46,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-08 04:08:46,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-08 04:08:46,862 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-08-08 04:08:47,044 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-08 04:08:47,044 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-08-08 04:08:47,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-08 04:08:47,044 INFO L82 PathProgramCache]: Analyzing trace with hash -879946602, now seen corresponding path program 3 times [2021-08-08 04:08:47,045 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-08 04:08:47,045 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102591687] [2021-08-08 04:08:47,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-08 04:08:47,045 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-08 04:08:47,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-08 04:08:47,279 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-08 04:08:47,279 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-08 04:08:47,279 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102591687] [2021-08-08 04:08:47,280 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102591687] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-08 04:08:47,280 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1316815750] [2021-08-08 04:08:47,280 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-08-08 04:08:47,280 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-08 04:08:47,280 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-08 04:08:47,285 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) [2021-08-08 04:08:47,286 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-08-08 04:08:47,418 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-08-08 04:08:47,418 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-08 04:08:47,419 WARN L261 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 40 conjunts are in the unsatisfiable core [2021-08-08 04:08:47,420 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-08 04:08:50,553 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-08 04:08:50,554 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 11 new quantified variables, introduced 15 case distinctions, treesize of input 31 treesize of output 142 [2021-08-08 04:08:51,156 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-08 04:08:51,156 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1316815750] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-08 04:08:51,157 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-08 04:08:51,157 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20 [2021-08-08 04:08:51,157 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366449885] [2021-08-08 04:08:51,157 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-08-08 04:08:51,157 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-08 04:08:51,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-08-08 04:08:51,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=370, Unknown=0, NotChecked=0, Total=420 [2021-08-08 04:08:51,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-08 04:08:51,158 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-08 04:08:51,158 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 1.380952380952381) internal successors, (29), 20 states have internal predecessors, (29), 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) [2021-08-08 04:08:51,158 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-08-08 04:08:51,158 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-08 04:08:51,159 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-08-08 04:08:51,159 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-08-08 04:08:51,159 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-08-08 04:08:51,159 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-08-08 04:08:51,159 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-08-08 04:08:51,159 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-08 04:08:51,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-08 04:08:51,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-08 04:08:51,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-08 04:08:51,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-08 04:08:51,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-08 04:08:51,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-08 04:08:51,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-08 04:08:51,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-08 04:08:51,323 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-08-08 04:08:51,505 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2021-08-08 04:08:51,505 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-08-08 04:08:51,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-08 04:08:51,506 INFO L82 PathProgramCache]: Analyzing trace with hash 819415419, now seen corresponding path program 4 times [2021-08-08 04:08:51,506 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-08 04:08:51,506 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270800625] [2021-08-08 04:08:51,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-08 04:08:51,507 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-08 04:08:51,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-08 04:08:51,709 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-08 04:08:51,709 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-08 04:08:51,709 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270800625] [2021-08-08 04:08:51,710 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1270800625] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-08 04:08:51,710 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [883899955] [2021-08-08 04:08:51,710 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-08-08 04:08:51,710 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-08 04:08:51,710 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-08 04:08:51,711 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) [2021-08-08 04:08:51,715 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-08-08 04:08:51,859 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-08-08 04:08:51,860 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-08 04:08:51,860 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 34 conjunts are in the unsatisfiable core [2021-08-08 04:08:51,861 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-08 04:09:18,912 WARN L207 SmtUtils]: Spent 26.64 s on a formula simplification. DAG size of input: 1667 DAG size of output: 48 [2021-08-08 04:10:12,077 WARN L207 SmtUtils]: Spent 26.60 s on a formula simplification. DAG size of input: 1667 DAG size of output: 48 [2021-08-08 04:10:12,194 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-08 04:10:12,195 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 13 new quantified variables, introduced 21 case distinctions, treesize of input 115 treesize of output 243 [2021-08-08 04:10:13,396 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-08 04:10:13,396 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [883899955] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-08 04:10:13,396 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-08 04:10:13,396 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20 [2021-08-08 04:10:13,396 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439136406] [2021-08-08 04:10:13,397 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-08-08 04:10:13,397 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-08 04:10:13,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-08-08 04:10:13,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=371, Unknown=0, NotChecked=0, Total=420 [2021-08-08 04:10:13,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-08 04:10:13,398 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-08 04:10:13,398 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 1.4761904761904763) internal successors, (31), 20 states have internal predecessors, (31), 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) [2021-08-08 04:10:13,398 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-08-08 04:10:13,398 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-08 04:10:13,398 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-08-08 04:10:13,398 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-08-08 04:10:13,398 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-08-08 04:10:13,398 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-08-08 04:10:13,398 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-08-08 04:10:13,398 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-08-08 04:10:13,398 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-08 04:10:13,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-08 04:10:13,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-08 04:10:13,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-08 04:10:13,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-08 04:10:13,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-08 04:10:13,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-08 04:10:13,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-08 04:10:13,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-08 04:10:13,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-08 04:10:13,621 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-08-08 04:10:13,803 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-08 04:10:13,803 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-08-08 04:10:13,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-08 04:10:13,804 INFO L82 PathProgramCache]: Analyzing trace with hash 1960030518, now seen corresponding path program 5 times [2021-08-08 04:10:13,804 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-08 04:10:13,804 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315554608] [2021-08-08 04:10:13,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-08 04:10:13,804 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-08 04:10:13,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-08 04:10:13,905 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 21 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-08 04:10:13,905 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-08 04:10:13,906 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315554608] [2021-08-08 04:10:13,906 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315554608] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-08 04:10:13,906 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1398441918] [2021-08-08 04:10:13,906 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-08-08 04:10:13,906 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-08 04:10:13,906 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-08 04:10:13,907 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) [2021-08-08 04:10:13,907 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-08-08 04:10:14,069 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2021-08-08 04:10:14,069 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-08 04:10:14,070 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 11 conjunts are in the unsatisfiable core [2021-08-08 04:10:14,070 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-08 04:10:14,175 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 28 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-08 04:10:14,176 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1398441918] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-08 04:10:14,176 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-08 04:10:14,176 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 12 [2021-08-08 04:10:14,176 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570771112] [2021-08-08 04:10:14,176 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-08-08 04:10:14,176 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-08 04:10:14,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-08-08 04:10:14,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2021-08-08 04:10:14,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-08 04:10:14,177 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-08 04:10:14,177 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 1.6923076923076923) internal successors, (22), 12 states have internal predecessors, (22), 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) [2021-08-08 04:10:14,177 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-08-08 04:10:14,177 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-08 04:10:14,178 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-08-08 04:10:14,178 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-08-08 04:10:14,178 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-08-08 04:10:14,178 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-08-08 04:10:14,178 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-08-08 04:10:14,178 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-08-08 04:10:14,178 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-08-08 04:10:14,178 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-08 04:10:14,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-08 04:10:14,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-08 04:10:14,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-08 04:10:14,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-08 04:10:14,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-08 04:10:14,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-08 04:10:14,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-08 04:10:14,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-08 04:10:14,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-08 04:10:14,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-08 04:10:14,322 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-08-08 04:10:14,506 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-08-08 04:10:14,506 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-08-08 04:10:14,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-08 04:10:14,507 INFO L82 PathProgramCache]: Analyzing trace with hash 1457022825, now seen corresponding path program 6 times [2021-08-08 04:10:14,507 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-08 04:10:14,507 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049989487] [2021-08-08 04:10:14,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-08 04:10:14,507 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-08 04:10:14,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-08 04:10:14,725 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-08 04:10:14,725 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-08 04:10:14,725 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049989487] [2021-08-08 04:10:14,725 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049989487] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-08 04:10:14,725 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1623848469] [2021-08-08 04:10:14,725 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-08-08 04:10:14,725 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-08 04:10:14,725 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-08 04:10:14,741 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) [2021-08-08 04:10:14,741 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-08-08 04:10:14,914 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2021-08-08 04:10:14,914 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-08 04:10:14,915 WARN L261 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 41 conjunts are in the unsatisfiable core [2021-08-08 04:10:14,916 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-08 04:10:25,277 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-08 04:10:25,277 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 21 new quantified variables, introduced 55 case distinctions, treesize of input 149 treesize of output 527 [2021-08-08 04:10:46,748 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-08 04:10:46,749 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1623848469] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-08 04:10:46,749 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-08 04:10:46,749 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2021-08-08 04:10:46,749 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576025303] [2021-08-08 04:10:46,749 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-08-08 04:10:46,749 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-08 04:10:46,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-08-08 04:10:46,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=636, Unknown=0, NotChecked=0, Total=702 [2021-08-08 04:10:46,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-08 04:10:46,750 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-08 04:10:46,750 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 1.2962962962962963) internal successors, (35), 26 states have internal predecessors, (35), 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) [2021-08-08 04:10:46,751 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-08-08 04:10:46,751 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-08 04:10:46,751 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-08-08 04:10:46,751 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-08-08 04:10:46,751 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-08-08 04:10:46,751 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-08-08 04:10:46,751 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-08-08 04:10:46,751 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-08-08 04:10:46,751 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-08-08 04:10:46,751 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-08-08 04:10:46,751 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-08 04:10:46,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-08 04:10:46,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-08 04:10:46,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-08 04:10:46,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-08 04:10:46,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-08 04:10:46,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-08 04:10:46,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-08 04:10:46,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-08 04:10:46,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-08 04:10:46,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-08 04:10:46,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-08-08 04:10:47,017 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-08-08 04:10:47,204 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-08-08 04:10:47,205 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-08-08 04:10:47,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-08 04:10:47,205 INFO L82 PathProgramCache]: Analyzing trace with hash -1923494812, now seen corresponding path program 7 times [2021-08-08 04:10:47,205 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-08 04:10:47,205 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861410452] [2021-08-08 04:10:47,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-08 04:10:47,205 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-08 04:10:47,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-08 04:10:47,508 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-08 04:10:47,508 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-08 04:10:47,508 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861410452] [2021-08-08 04:10:47,508 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861410452] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-08 04:10:47,509 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [263949897] [2021-08-08 04:10:47,509 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-08-08 04:10:47,509 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-08 04:10:47,509 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-08 04:10:47,521 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) [2021-08-08 04:10:47,521 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-08-08 04:10:47,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-08 04:10:47,725 WARN L261 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 56 conjunts are in the unsatisfiable core [2021-08-08 04:10:47,726 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-08 04:10:56,596 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-08 04:10:56,597 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 17 new quantified variables, introduced 36 case distinctions, treesize of input 43 treesize of output 319 [2021-08-08 04:11:01,255 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-08 04:11:01,255 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [263949897] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-08 04:11:01,256 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-08 04:11:01,256 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 28 [2021-08-08 04:11:01,256 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547057398] [2021-08-08 04:11:01,256 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-08-08 04:11:01,256 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-08 04:11:01,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-08-08 04:11:01,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=742, Unknown=0, NotChecked=0, Total=812 [2021-08-08 04:11:01,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-08 04:11:01,257 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-08 04:11:01,257 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 1.2758620689655173) internal successors, (37), 28 states have internal predecessors, (37), 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) [2021-08-08 04:11:01,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-08-08 04:11:01,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-08 04:11:01,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-08-08 04:11:01,258 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-08-08 04:11:01,258 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-08-08 04:11:01,258 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-08-08 04:11:01,258 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-08-08 04:11:01,258 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-08-08 04:11:01,258 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-08-08 04:11:01,258 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-08-08 04:11:01,258 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-08-08 04:11:01,258 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-08 04:11:01,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-08 04:11:01,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-08 04:11:01,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-08 04:11:01,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-08 04:11:01,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-08 04:11:01,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-08 04:11:01,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-08 04:11:01,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-08 04:11:01,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-08 04:11:01,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-08 04:11:01,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-08-08 04:11:01,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-08 04:11:01,523 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-08-08 04:11:01,715 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-08-08 04:11:01,715 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-08-08 04:11:01,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-08 04:11:01,715 INFO L82 PathProgramCache]: Analyzing trace with hash 654640841, now seen corresponding path program 8 times [2021-08-08 04:11:01,715 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-08 04:11:01,715 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312553632] [2021-08-08 04:11:01,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-08 04:11:01,716 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-08 04:11:01,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-08 04:11:04,487 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-08 04:11:04,488 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-08 04:11:04,488 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312553632] [2021-08-08 04:11:04,488 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312553632] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-08 04:11:04,488 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [921882574] [2021-08-08 04:11:04,488 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-08 04:11:04,488 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-08 04:11:04,488 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-08 04:11:04,492 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) [2021-08-08 04:11:04,516 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-08-08 04:11:04,753 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-08 04:11:04,753 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-08 04:11:04,754 WARN L261 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 60 conjunts are in the unsatisfiable core [2021-08-08 04:11:04,755 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-08 04:11:05,886 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-08 04:11:05,887 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 19 new quantified variables, introduced 45 case distinctions, treesize of input 47 treesize of output 394 [2021-08-08 04:11:15,244 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-08 04:11:15,244 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [921882574] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-08 04:11:15,244 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-08 04:11:15,244 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 30 [2021-08-08 04:11:15,244 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42655767] [2021-08-08 04:11:15,245 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2021-08-08 04:11:15,245 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-08 04:11:15,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-08-08 04:11:15,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=855, Unknown=0, NotChecked=0, Total=930 [2021-08-08 04:11:15,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-08 04:11:15,246 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-08 04:11:15,246 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 1.2580645161290323) internal successors, (39), 30 states have internal predecessors, (39), 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) [2021-08-08 04:11:15,246 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-08-08 04:11:15,246 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-08 04:11:15,246 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-08-08 04:11:15,246 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-08-08 04:11:15,246 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-08-08 04:11:15,246 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-08-08 04:11:15,246 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-08-08 04:11:15,246 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-08-08 04:11:15,247 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-08-08 04:11:15,247 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-08-08 04:11:15,247 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-08-08 04:11:15,247 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-08-08 04:11:15,247 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-08 04:11:15,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-08 04:11:15,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-08 04:11:15,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-08 04:11:15,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-08 04:11:15,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-08 04:11:15,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-08 04:11:15,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-08 04:11:15,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-08 04:11:15,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-08 04:11:15,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-08 04:11:15,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-08-08 04:11:15,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-08 04:11:15,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-08-08 04:11:15,560 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-08-08 04:11:15,748 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,SelfDestructingSolverStorable12 [2021-08-08 04:11:15,749 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-08-08 04:11:15,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-08 04:11:15,749 INFO L82 PathProgramCache]: Analyzing trace with hash -1027532540, now seen corresponding path program 9 times [2021-08-08 04:11:15,749 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-08 04:11:15,749 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109792908] [2021-08-08 04:11:15,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-08 04:11:15,750 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-08 04:11:15,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-08 04:11:16,036 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 69 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-08 04:11:16,036 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-08 04:11:16,036 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109792908] [2021-08-08 04:11:16,037 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109792908] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-08 04:11:16,037 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1830103939] [2021-08-08 04:11:16,037 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-08-08 04:11:16,037 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-08 04:11:16,037 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-08 04:11:16,045 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) [2021-08-08 04:11:16,046 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-08-08 04:11:16,346 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2021-08-08 04:11:16,346 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-08 04:11:16,347 WARN L261 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 51 conjunts are in the unsatisfiable core [2021-08-08 04:11:16,348 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-08 04:11:17,377 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-08 04:11:17,377 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 21 new quantified variables, introduced 55 case distinctions, treesize of input 208 treesize of output 580 [2021-08-08 04:11:41,454 INFO L134 CoverageAnalysis]: Checked inductivity of 69 backedges. 0 proven. 69 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-08 04:11:41,455 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1830103939] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-08 04:11:41,455 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-08 04:11:41,455 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 30 [2021-08-08 04:11:41,455 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315172128] [2021-08-08 04:11:41,455 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2021-08-08 04:11:41,455 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-08 04:11:41,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-08-08 04:11:41,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=856, Unknown=0, NotChecked=0, Total=930 [2021-08-08 04:11:41,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-08 04:11:41,456 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-08 04:11:41,457 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 1.3225806451612903) internal successors, (41), 30 states have internal predecessors, (41), 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) [2021-08-08 04:11:41,457 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-08-08 04:11:41,457 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-08 04:11:41,457 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-08-08 04:11:41,457 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-08-08 04:11:41,457 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-08-08 04:11:41,457 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-08-08 04:11:41,457 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-08-08 04:11:41,457 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-08-08 04:11:41,457 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-08-08 04:11:41,457 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-08-08 04:11:41,457 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-08-08 04:11:41,457 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-08-08 04:11:41,457 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-08-08 04:11:41,458 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-08 04:11:41,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-08 04:11:41,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-08 04:11:41,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-08 04:11:41,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-08 04:11:41,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-08 04:11:41,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-08 04:11:41,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-08 04:11:41,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-08 04:11:41,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-08 04:11:41,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-08 04:11:41,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-08-08 04:11:41,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-08 04:11:41,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-08-08 04:11:41,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-08-08 04:11:41,901 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-08-08 04:11:42,088 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-08 04:11:42,089 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-08-08 04:11:42,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-08 04:11:42,089 INFO L82 PathProgramCache]: Analyzing trace with hash -1635299799, now seen corresponding path program 10 times [2021-08-08 04:11:42,089 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-08 04:11:42,089 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285860947] [2021-08-08 04:11:42,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-08 04:11:42,090 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-08 04:11:42,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-08 04:11:42,243 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 55 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-08 04:11:42,244 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-08 04:11:42,244 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285860947] [2021-08-08 04:11:42,244 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285860947] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-08 04:11:42,244 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1273654603] [2021-08-08 04:11:42,244 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-08-08 04:11:42,244 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-08 04:11:42,244 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-08 04:11:42,245 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) [2021-08-08 04:11:42,245 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-08-08 04:11:42,546 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-08-08 04:11:42,547 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-08 04:11:42,547 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 16 conjunts are in the unsatisfiable core [2021-08-08 04:11:42,548 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-08 04:11:42,688 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 66 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-08 04:11:42,688 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1273654603] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-08 04:11:42,688 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-08 04:11:42,688 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 17 [2021-08-08 04:11:42,688 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716129021] [2021-08-08 04:11:42,688 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-08-08 04:11:42,689 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-08 04:11:42,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-08-08 04:11:42,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=203, Unknown=0, NotChecked=0, Total=306 [2021-08-08 04:11:42,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-08 04:11:42,689 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-08 04:11:42,689 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 1.5) internal successors, (27), 17 states have internal predecessors, (27), 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) [2021-08-08 04:11:42,689 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-08-08 04:11:42,690 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-08 04:11:42,690 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-08-08 04:11:42,690 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-08-08 04:11:42,690 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-08-08 04:11:42,690 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-08-08 04:11:42,690 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-08-08 04:11:42,690 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-08-08 04:11:42,690 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-08-08 04:11:42,690 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-08-08 04:11:42,690 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-08-08 04:11:42,690 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-08-08 04:11:42,690 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-08-08 04:11:42,690 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-08-08 04:11:42,690 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-08 04:11:42,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-08 04:11:42,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-08 04:11:42,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-08 04:11:42,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-08 04:11:42,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-08 04:11:42,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-08 04:11:42,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-08 04:11:42,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-08 04:11:42,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-08 04:11:42,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-08 04:11:42,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-08-08 04:11:42,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-08 04:11:42,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-08-08 04:11:42,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-08-08 04:11:42,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-08-08 04:11:42,917 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2021-08-08 04:11:43,097 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-08-08 04:11:43,097 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-08-08 04:11:43,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-08 04:11:43,098 INFO L82 PathProgramCache]: Analyzing trace with hash 1670932694, now seen corresponding path program 11 times [2021-08-08 04:11:43,098 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-08 04:11:43,098 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605336360] [2021-08-08 04:11:43,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-08 04:11:43,098 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-08 04:11:43,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-08 04:11:43,439 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-08 04:11:43,439 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-08 04:11:43,439 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605336360] [2021-08-08 04:11:43,439 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [605336360] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-08 04:11:43,439 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [69882541] [2021-08-08 04:11:43,439 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-08-08 04:11:43,439 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-08 04:11:43,439 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-08 04:11:43,440 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-08 04:11:43,441 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-08-08 04:11:43,743 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2021-08-08 04:11:43,743 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-08 04:11:43,744 WARN L261 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 56 conjunts are in the unsatisfiable core [2021-08-08 04:11:43,745 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-08 04:11:45,408 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-08 04:11:45,409 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 15 select indices, 15 select index equivalence classes, 0 disjoint index pairs (out of 105 index pairs), introduced 29 new quantified variables, introduced 105 case distinctions, treesize of input 189 treesize of output 939 [2021-08-08 04:14:32,142 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 84 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-08 04:14:32,142 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [69882541] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-08 04:14:32,142 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-08 04:14:32,142 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 36 [2021-08-08 04:14:32,143 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851088545] [2021-08-08 04:14:32,143 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2021-08-08 04:14:32,143 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-08 04:14:32,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2021-08-08 04:14:32,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=1241, Unknown=0, NotChecked=0, Total=1332 [2021-08-08 04:14:32,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-08 04:14:32,144 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-08 04:14:32,144 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 1.2162162162162162) internal successors, (45), 36 states have internal predecessors, (45), 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) [2021-08-08 04:14:32,144 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-08-08 04:14:32,144 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-08 04:14:32,144 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-08-08 04:14:32,144 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-08-08 04:14:32,144 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-08-08 04:14:32,144 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-08-08 04:14:32,145 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-08-08 04:14:32,145 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-08-08 04:14:32,145 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-08-08 04:14:32,145 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-08-08 04:14:32,145 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-08-08 04:14:32,145 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-08-08 04:14:32,145 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-08-08 04:14:32,145 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-08-08 04:14:32,145 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-08-08 04:14:32,145 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-08 04:14:32,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-08 04:14:32,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-08 04:14:32,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-08 04:14:32,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-08 04:14:32,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-08 04:14:32,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-08 04:14:32,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-08 04:14:32,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-08 04:14:32,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-08 04:14:32,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-08 04:14:32,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-08-08 04:14:32,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-08 04:14:32,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-08-08 04:14:32,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-08-08 04:14:32,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-08-08 04:14:32,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-08-08 04:14:32,690 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-08-08 04:14:32,876 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-08-08 04:14:32,877 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-08-08 04:14:32,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-08 04:14:32,877 INFO L82 PathProgramCache]: Analyzing trace with hash 1722149051, now seen corresponding path program 12 times [2021-08-08 04:14:32,877 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-08 04:14:32,877 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548129989] [2021-08-08 04:14:32,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-08 04:14:32,878 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-08 04:14:32,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-08 04:14:33,303 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 0 proven. 97 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-08 04:14:33,304 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-08 04:14:33,304 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548129989] [2021-08-08 04:14:33,304 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548129989] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-08 04:14:33,304 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1639885526] [2021-08-08 04:14:33,304 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-08-08 04:14:33,304 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-08 04:14:33,304 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-08 04:14:33,305 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-08 04:14:33,305 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-08-08 04:14:33,648 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2021-08-08 04:14:33,648 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-08 04:14:33,650 WARN L261 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 76 conjunts are in the unsatisfiable core [2021-08-08 04:14:33,651 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-08 04:14:35,111 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-08 04:14:35,112 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 13 select indices, 13 select index equivalence classes, 0 disjoint index pairs (out of 78 index pairs), introduced 25 new quantified variables, introduced 78 case distinctions, treesize of input 59 treesize of output 667 [2021-08-08 04:15:38,513 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 0 proven. 97 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-08 04:15:38,513 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1639885526] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-08 04:15:38,513 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-08 04:15:38,513 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 38 [2021-08-08 04:15:38,513 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922188274] [2021-08-08 04:15:38,514 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2021-08-08 04:15:38,514 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-08 04:15:38,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2021-08-08 04:15:38,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=1387, Unknown=0, NotChecked=0, Total=1482 [2021-08-08 04:15:38,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-08 04:15:38,516 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-08 04:15:38,516 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 1.205128205128205) internal successors, (47), 38 states have internal predecessors, (47), 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) [2021-08-08 04:15:38,516 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-08-08 04:15:38,516 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-08 04:15:38,516 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-08-08 04:15:38,516 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-08-08 04:15:38,516 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-08-08 04:15:38,516 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-08-08 04:15:38,516 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-08-08 04:15:38,516 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-08-08 04:15:38,516 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-08-08 04:15:38,516 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-08-08 04:15:38,516 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-08-08 04:15:38,516 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-08-08 04:15:38,516 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-08-08 04:15:38,517 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-08-08 04:15:38,517 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-08-08 04:15:38,517 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-08-08 04:15:38,517 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-08 04:15:39,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-08 04:15:39,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-08 04:15:39,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-08 04:15:39,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-08 04:15:39,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-08 04:15:39,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-08 04:15:39,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-08 04:15:39,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-08 04:15:39,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-08 04:15:39,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-08 04:15:39,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-08-08 04:15:39,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-08 04:15:39,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-08-08 04:15:39,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-08-08 04:15:39,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-08-08 04:15:39,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-08-08 04:15:39,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-08-08 04:15:39,033 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2021-08-08 04:15:39,220 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-08-08 04:15:39,221 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-08-08 04:15:39,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-08 04:15:39,222 INFO L82 PathProgramCache]: Analyzing trace with hash -985111178, now seen corresponding path program 13 times [2021-08-08 04:15:39,222 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-08 04:15:39,222 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140763572] [2021-08-08 04:15:39,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-08 04:15:39,222 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-08 04:15:39,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-08 04:15:39,676 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 111 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-08 04:15:39,676 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-08 04:15:39,676 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140763572] [2021-08-08 04:15:39,676 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140763572] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-08 04:15:39,676 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1872581682] [2021-08-08 04:15:39,676 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-08-08 04:15:39,677 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-08 04:15:39,677 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-08 04:15:39,677 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-08 04:15:39,678 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2021-08-08 04:15:40,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-08 04:15:40,053 WARN L261 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 80 conjunts are in the unsatisfiable core [2021-08-08 04:15:40,054 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-08 04:15:47,299 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-08 04:15:47,299 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 14 select indices, 14 select index equivalence classes, 0 disjoint index pairs (out of 91 index pairs), introduced 27 new quantified variables, introduced 91 case distinctions, treesize of input 63 treesize of output 774 [2021-08-08 04:18:56,269 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 111 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-08 04:18:56,270 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1872581682] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-08 04:18:56,270 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-08 04:18:56,270 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21] total 40 [2021-08-08 04:18:56,270 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567724338] [2021-08-08 04:18:56,270 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2021-08-08 04:18:56,270 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-08 04:18:56,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2021-08-08 04:18:56,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=1540, Unknown=0, NotChecked=0, Total=1640 [2021-08-08 04:18:56,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-08 04:18:56,271 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-08 04:18:56,271 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 1.1951219512195121) internal successors, (49), 40 states have internal predecessors, (49), 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) [2021-08-08 04:18:56,271 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-08-08 04:18:56,272 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-08 04:18:56,272 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-08-08 04:18:56,272 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-08-08 04:18:56,272 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-08-08 04:18:56,272 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-08-08 04:18:56,272 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-08-08 04:18:56,272 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-08-08 04:18:56,272 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-08-08 04:18:56,272 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-08-08 04:18:56,272 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-08-08 04:18:56,272 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-08-08 04:18:56,272 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-08-08 04:18:56,272 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-08-08 04:18:56,272 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-08-08 04:18:56,272 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-08-08 04:18:56,272 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-08-08 04:18:56,273 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-08 04:18:56,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-08 04:18:56,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-08 04:18:56,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-08 04:18:56,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-08 04:18:56,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-08 04:18:56,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-08 04:18:56,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-08 04:18:56,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-08 04:18:56,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-08 04:18:56,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-08 04:18:56,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-08-08 04:18:56,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-08 04:18:56,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-08-08 04:18:56,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-08-08 04:18:56,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-08-08 04:18:56,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-08-08 04:18:56,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-08-08 04:18:56,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-08-08 04:18:56,753 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2021-08-08 04:18:56,936 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-08-08 04:18:56,936 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-08-08 04:18:56,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-08 04:18:56,937 INFO L82 PathProgramCache]: Analyzing trace with hash 989167643, now seen corresponding path program 14 times [2021-08-08 04:18:56,937 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-08 04:18:56,937 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024956348] [2021-08-08 04:18:56,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-08 04:18:56,937 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-08 04:18:56,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-08 04:18:57,355 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-08 04:18:57,355 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-08 04:18:57,355 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024956348] [2021-08-08 04:18:57,355 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024956348] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-08 04:18:57,355 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1121872731] [2021-08-08 04:18:57,355 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-08 04:18:57,356 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-08 04:18:57,356 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-08 04:18:57,357 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-08 04:18:57,359 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2021-08-08 04:18:57,800 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-08 04:18:57,800 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-08 04:18:57,801 WARN L261 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 64 conjunts are in the unsatisfiable core [2021-08-08 04:18:57,802 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-08 04:18:59,582 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-08-08 04:18:59,583 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 15 select indices, 15 select index equivalence classes, 0 disjoint index pairs (out of 105 index pairs), introduced 29 new quantified variables, introduced 105 case distinctions, treesize of input 195 treesize of output 939 Received shutdown request... [2021-08-08 04:19:10,610 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT [2021-08-08 04:19:10,616 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 [2021-08-08 04:19:10,641 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 [2021-08-08 04:19:10,641 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2021-08-08 04:19:10,644 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2021-08-08 04:19:10,835 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-08 04:19:10,836 WARN L594 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 29 with TraceHistMax 15,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-104-4-2-1 context. [2021-08-08 04:19:10,838 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION [2021-08-08 04:19:10,838 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION [2021-08-08 04:19:10,844 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-08-08 04:19:10,845 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-08 04:19:10,846 INFO L202 PluginConnector]: Adding new model unroll-cond-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.08 04:19:10 BasicIcfg [2021-08-08 04:19:10,846 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-08 04:19:10,858 INFO L168 Benchmark]: Toolchain (without parser) took 822112.61 ms. Allocated memory was 175.1 MB in the beginning and 791.7 MB in the end (delta: 616.6 MB). Free memory was 155.4 MB in the beginning and 275.8 MB in the end (delta: -120.5 MB). Peak memory consumption was 541.2 MB. Max. memory is 8.0 GB. [2021-08-08 04:19:10,859 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.15 ms. Allocated memory is still 175.1 MB. Free memory is still 156.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-08-08 04:19:10,859 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.02 ms. Allocated memory is still 175.1 MB. Free memory was 155.2 MB in the beginning and 153.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-08-08 04:19:10,859 INFO L168 Benchmark]: Boogie Preprocessor took 30.07 ms. Allocated memory is still 175.1 MB. Free memory was 153.7 MB in the beginning and 152.6 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-08-08 04:19:10,859 INFO L168 Benchmark]: RCFGBuilder took 468.23 ms. Allocated memory is still 175.1 MB. Free memory was 152.6 MB in the beginning and 132.5 MB in the end (delta: 20.1 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2021-08-08 04:19:10,859 INFO L168 Benchmark]: TraceAbstraction took 821579.93 ms. Allocated memory was 175.1 MB in the beginning and 791.7 MB in the end (delta: 616.6 MB). Free memory was 132.1 MB in the beginning and 275.8 MB in the end (delta: -143.8 MB). Peak memory consumption was 518.2 MB. Max. memory is 8.0 GB. [2021-08-08 04:19:10,859 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 0.15 ms. Allocated memory is still 175.1 MB. Free memory is still 156.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 29.02 ms. Allocated memory is still 175.1 MB. Free memory was 155.2 MB in the beginning and 153.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 30.07 ms. Allocated memory is still 175.1 MB. Free memory was 153.7 MB in the beginning and 152.6 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 468.23 ms. Allocated memory is still 175.1 MB. Free memory was 152.6 MB in the beginning and 132.5 MB in the end (delta: 20.1 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 821579.93 ms. Allocated memory was 175.1 MB in the beginning and 791.7 MB in the end (delta: 616.6 MB). Free memory was 132.1 MB in the beginning and 275.8 MB in the end (delta: -143.8 MB). Peak memory consumption was 518.2 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 690, positive: 481, positive conditional: 437, positive unconditional: 44, negative: 209, negative conditional: 209, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 481, positive: 481, positive conditional: 437, positive unconditional: 44, 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: 481, positive: 481, positive conditional: 437, positive unconditional: 44, 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: 481, positive: 481, positive conditional: 432, positive unconditional: 49, 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: 481, positive: 481, positive conditional: 306, positive unconditional: 175, 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: 481, positive: 481, positive conditional: 306, positive unconditional: 175, 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: 47, positive: 47, positive conditional: 0, positive unconditional: 47, 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: 47, positive: 47, positive conditional: 0, positive unconditional: 47, 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: 481, positive: 434, positive conditional: 306, positive unconditional: 128, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 47, unknown conditional: 0, unknown unconditional: 47] , Statistics on independence cache: Total cache size (in pairs): 47, Positive cache size: 47, Positive conditional cache size: 0, Positive unconditional cache size: 47, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 126, Maximal queried relation: 0, Independence queries for same thread: 209 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 28, Number of persistent set computation: 10, Number of trivial persistent sets: 8, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 44, positive: 44, positive conditional: 0, positive unconditional: 44, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 690, positive: 481, positive conditional: 437, positive unconditional: 44, negative: 209, negative conditional: 209, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 481, positive: 481, positive conditional: 437, positive unconditional: 44, 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: 481, positive: 481, positive conditional: 437, positive unconditional: 44, 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: 481, positive: 481, positive conditional: 432, positive unconditional: 49, 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: 481, positive: 481, positive conditional: 306, positive unconditional: 175, 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: 481, positive: 481, positive conditional: 306, positive unconditional: 175, 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: 47, positive: 47, positive conditional: 0, positive unconditional: 47, 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: 47, positive: 47, positive conditional: 0, positive unconditional: 47, 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: 481, positive: 434, positive conditional: 306, positive unconditional: 128, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 47, unknown conditional: 0, unknown unconditional: 47] , Statistics on independence cache: Total cache size (in pairs): 47, Positive cache size: 47, Positive conditional cache size: 0, Positive unconditional cache size: 47, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 126, Maximal queried relation: 0, Independence queries for same thread: 209 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 65]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PartialOrderCegarLoop was analyzing trace of length 29 with TraceHistMax 15,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-104-4-2-1 context. - TimeoutResultAtElement [Line: 60]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 29 with TraceHistMax 15,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-104-4-2-1 context. - TimeoutResultAtElement [Line: 60]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 29 with TraceHistMax 15,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ATOM-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-104-4-2-1 context. - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 22 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 821511.2ms, OverallIterations: 19, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 14.5ms, PartialOrderReductionTime: 3871.9ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 204, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 87.2ms SsaConstructionTime, 403.8ms SatisfiabilityAnalysisTime, 796439.6ms InterpolantComputationTime, 656 NumberOfCodeBlocks, 656 NumberOfCodeBlocksAsserted, 70 NumberOfCheckSat, 621 ConstructedInterpolants, 0 QuantifiedInterpolants, 9530 SizeOfPredicates, 40 NumberOfNonLiveVariables, 1292 ConjunctsInSsa, 644 ConjunctsInUnsatCore, 35 InterpolantComputations, 1 PerfectInterpolantSequences, 179/1444 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