/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-Uncond-NoLbe-Random7777.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/array-sum.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2ce48c3f3f8970e6bfb7f04ced506932607c57fe-2ce48c3 [2021-10-22 22:21:10,063 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-22 22:21:10,065 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-22 22:21:10,130 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-10-22 22:21:10,152 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-22 22:21:10,152 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-22 22:21:10,153 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-22 22:21:10,154 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-Uncond-NoLbe-Random7777.epf [2021-10-22 22:21:10,170 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-22 22:21:10,170 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-22 22:21:10,170 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-22 22:21:10,170 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-22 22:21:10,171 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-22 22:21:10,171 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-22 22:21:10,172 INFO L138 SettingsManager]: * Use SBE=true [2021-10-22 22:21:10,172 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-22 22:21:10,172 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-22 22:21:10,172 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-22 22:21:10,172 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-22 22:21:10,172 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-22 22:21:10,172 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-22 22:21:10,172 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-22 22:21:10,173 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-22 22:21:10,173 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-22 22:21:10,173 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-22 22:21:10,173 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-22 22:21:10,173 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-22 22:21:10,173 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-22 22:21:10,173 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-22 22:21:10,173 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-10-22 22:21:10,174 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-22 22:21:10,174 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-22 22:21:10,174 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-22 22:21:10,174 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-22 22:21:10,174 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-22 22:21:10,174 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-22 22:21:10,174 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-10-22 22:21:10,174 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-22 22:21:10,174 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-22 22:21:10,175 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-10-22 22:21:10,175 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-22 22:21:10,175 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2021-10-22 22:21:10,175 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-10-22 22:21:10,175 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-22 22:21:10,175 INFO L138 SettingsManager]: * Random seed used by POR DFS order=7777 [2021-10-22 22:21:10,175 INFO L138 SettingsManager]: * Use conditional POR in concurrent analysis=false 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-10-22 22:21:10,359 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-22 22:21:10,384 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-22 22:21:10,386 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-22 22:21:10,387 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-10-22 22:21:10,389 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-10-22 22:21:10,390 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/array-sum.wvr.bpl [2021-10-22 22:21:10,390 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/array-sum.wvr.bpl' [2021-10-22 22:21:10,408 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-22 22:21:10,409 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-10-22 22:21:10,410 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-22 22:21:10,410 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-22 22:21:10,410 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-22 22:21:10,420 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 10:21:10" (1/1) ... [2021-10-22 22:21:10,425 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 10:21:10" (1/1) ... [2021-10-22 22:21:10,431 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-22 22:21:10,432 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-22 22:21:10,432 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-22 22:21:10,432 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-22 22:21:10,437 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 10:21:10" (1/1) ... [2021-10-22 22:21:10,437 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 10:21:10" (1/1) ... [2021-10-22 22:21:10,438 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 10:21:10" (1/1) ... [2021-10-22 22:21:10,438 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 10:21:10" (1/1) ... [2021-10-22 22:21:10,440 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 10:21:10" (1/1) ... [2021-10-22 22:21:10,441 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 10:21:10" (1/1) ... [2021-10-22 22:21:10,442 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 10:21:10" (1/1) ... [2021-10-22 22:21:10,443 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-22 22:21:10,443 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-22 22:21:10,443 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-22 22:21:10,443 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-22 22:21:10,444 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 10:21:10" (1/1) ... [2021-10-22 22:21:10,449 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-22 22:21:10,453 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 22:21:10,480 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) [2021-10-22 22:21:10,499 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 [2021-10-22 22:21:10,511 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-10-22 22:21:10,512 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-22 22:21:10,512 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-22 22:21:10,512 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-10-22 22:21:10,512 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-22 22:21:10,513 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-22 22:21:10,513 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-10-22 22:21:10,513 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-22 22:21:10,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-22 22:21:10,513 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-10-22 22:21:10,513 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-10-22 22:21:10,514 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-10-22 22:21:10,515 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-22 22:21:10,661 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-22 22:21:10,662 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-10-22 22:21:10,663 INFO L202 PluginConnector]: Adding new model array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 10:21:10 BoogieIcfgContainer [2021-10-22 22:21:10,663 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-22 22:21:10,664 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-22 22:21:10,664 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-22 22:21:10,679 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-22 22:21:10,679 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 10:21:10" (1/2) ... [2021-10-22 22:21:10,681 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30b4e0f5 and model type array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 10:21:10, skipping insertion in model container [2021-10-22 22:21:10,681 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 10:21:10" (2/2) ... [2021-10-22 22:21:10,682 INFO L111 eAbstractionObserver]: Analyzing ICFG array-sum.wvr.bpl [2021-10-22 22:21:10,685 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-22 22:21:10,685 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-22 22:21:10,685 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-22 22:21:10,685 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-22 22:21:10,715 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-10-22 22:21:10,742 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-10-22 22:21:10,742 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 22:21:10,757 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) [2021-10-22 22:21:10,758 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 [2021-10-22 22:21:10,786 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-10-22 22:21:10,791 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 [2021-10-22 22:21:10,791 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-10-22 22:21:10,927 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-22 22:21:10,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 22:21:10,930 INFO L82 PathProgramCache]: Analyzing trace with hash -1943511324, now seen corresponding path program 1 times [2021-10-22 22:21:10,938 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 22:21:10,939 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022811019] [2021-10-22 22:21:10,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 22:21:10,940 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 22:21:10,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 22:21:11,050 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 22:21:11,050 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 22:21:11,051 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022811019] [2021-10-22 22:21:11,051 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022811019] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-22 22:21:11,051 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-22 22:21:11,052 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-22 22:21:11,053 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466704267] [2021-10-22 22:21:11,060 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-22 22:21:11,061 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 22:21:11,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-22 22:21:11,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-22 22:21:11,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 22:21:11,074 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 22:21:11,075 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 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) [2021-10-22 22:21:11,075 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 22:21:11,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 22:21:11,113 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-22 22:21:11,114 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-22 22:21:11,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 22:21:11,114 INFO L82 PathProgramCache]: Analyzing trace with hash -567080297, now seen corresponding path program 1 times [2021-10-22 22:21:11,114 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 22:21:11,115 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768094127] [2021-10-22 22:21:11,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 22:21:11,115 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 22:21:11,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 22:21:11,482 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 22:21:11,482 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 22:21:11,482 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768094127] [2021-10-22 22:21:11,482 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768094127] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 22:21:11,483 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1069651940] [2021-10-22 22:21:11,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 22:21:11,483 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 22:21:11,483 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 22:21:11,484 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) [2021-10-22 22:21:11,499 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-22 22:21:11,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 22:21:11,545 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-22 22:21:11,548 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 22:21:11,853 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 19 treesize of output 15 [2021-10-22 22:21:11,935 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 22:21:11,936 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1069651940] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 22:21:11,936 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 22:21:11,936 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 11 [2021-10-22 22:21:11,937 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807849388] [2021-10-22 22:21:11,937 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-22 22:21:11,937 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 22:21:11,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-22 22:21:11,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2021-10-22 22:21:11,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 22:21:11,938 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 22:21:11,938 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.9166666666666665) internal successors, (35), 11 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) [2021-10-22 22:21:11,938 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 22:21:11,938 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 22:21:12,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 22:21:12,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-22 22:21:12,114 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-10-22 22:21:12,313 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 [2021-10-22 22:21:12,313 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-22 22:21:12,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 22:21:12,314 INFO L82 PathProgramCache]: Analyzing trace with hash 1808620567, now seen corresponding path program 1 times [2021-10-22 22:21:12,314 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 22:21:12,314 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088400857] [2021-10-22 22:21:12,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 22:21:12,314 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 22:21:12,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 22:21:12,394 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-22 22:21:12,394 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 22:21:12,394 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088400857] [2021-10-22 22:21:12,395 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088400857] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 22:21:12,395 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [419112179] [2021-10-22 22:21:12,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 22:21:12,395 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 22:21:12,395 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 22:21:12,396 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) [2021-10-22 22:21:12,406 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-22 22:21:12,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 22:21:12,466 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-22 22:21:12,467 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 22:21:12,598 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-22 22:21:12,599 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [419112179] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 22:21:12,599 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 22:21:12,599 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2021-10-22 22:21:12,599 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258061792] [2021-10-22 22:21:12,599 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-22 22:21:12,599 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 22:21:12,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-22 22:21:12,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-10-22 22:21:12,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 22:21:12,600 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 22:21:12,600 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.1) internal successors, (51), 10 states have internal predecessors, (51), 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) [2021-10-22 22:21:12,601 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 22:21:12,601 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-10-22 22:21:12,601 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 22:21:12,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 22:21:12,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-22 22:21:12,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-22 22:21:12,734 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-10-22 22:21:12,935 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 [2021-10-22 22:21:12,935 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-22 22:21:12,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 22:21:12,935 INFO L82 PathProgramCache]: Analyzing trace with hash -1438291401, now seen corresponding path program 2 times [2021-10-22 22:21:12,936 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 22:21:12,936 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388046904] [2021-10-22 22:21:12,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 22:21:12,936 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 22:21:12,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 22:21:13,503 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 22:21:13,503 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 22:21:13,503 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388046904] [2021-10-22 22:21:13,503 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388046904] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 22:21:13,503 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1178132620] [2021-10-22 22:21:13,503 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-22 22:21:13,504 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 22:21:13,504 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 22:21:13,504 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) [2021-10-22 22:21:13,506 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-22 22:21:13,594 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-22 22:21:13,595 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 22:21:13,595 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 32 conjunts are in the unsatisfiable core [2021-10-22 22:21:13,596 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 22:21:14,477 INFO L354 Elim1Store]: treesize reduction 16, result has 61.0 percent of original size [2021-10-22 22:21:14,478 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 51 treesize of output 63 [2021-10-22 22:21:14,505 INFO L354 Elim1Store]: treesize reduction 16, result has 61.0 percent of original size [2021-10-22 22:21:14,506 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 68 treesize of output 82 [2021-10-22 22:21:14,717 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 22:21:14,717 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1178132620] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 22:21:14,718 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 22:21:14,718 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 17] total 32 [2021-10-22 22:21:14,718 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495575623] [2021-10-22 22:21:14,718 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2021-10-22 22:21:14,718 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 22:21:14,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-10-22 22:21:14,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=185, Invalid=807, Unknown=0, NotChecked=0, Total=992 [2021-10-22 22:21:14,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 22:21:14,719 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 22:21:14,720 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 1.96875) internal successors, (63), 32 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-22 22:21:14,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 22:21:14,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-10-22 22:21:14,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-10-22 22:21:14,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 22:21:15,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 22:21:15,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-22 22:21:15,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-22 22:21:15,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-22 22:21:15,446 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-10-22 22:21:15,627 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 [2021-10-22 22:21:15,628 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-22 22:21:15,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 22:21:15,628 INFO L82 PathProgramCache]: Analyzing trace with hash 816475447, now seen corresponding path program 3 times [2021-10-22 22:21:15,628 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 22:21:15,628 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099960143] [2021-10-22 22:21:15,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 22:21:15,628 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 22:21:15,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 22:21:15,753 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 22 proven. 41 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-22 22:21:15,753 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 22:21:15,753 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099960143] [2021-10-22 22:21:15,754 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099960143] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 22:21:15,754 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [51493499] [2021-10-22 22:21:15,754 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-22 22:21:15,754 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 22:21:15,754 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 22:21:15,756 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) [2021-10-22 22:21:15,758 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-10-22 22:21:15,902 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2021-10-22 22:21:15,903 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 22:21:15,903 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-22 22:21:15,905 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 22:21:16,123 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 35 proven. 28 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-22 22:21:16,124 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [51493499] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 22:21:16,124 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 22:21:16,124 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 19 [2021-10-22 22:21:16,124 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372248315] [2021-10-22 22:21:16,124 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-10-22 22:21:16,124 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 22:21:16,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-22 22:21:16,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=253, Unknown=0, NotChecked=0, Total=342 [2021-10-22 22:21:16,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 22:21:16,125 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 22:21:16,125 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.5789473684210527) internal successors, (68), 19 states have internal predecessors, (68), 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) [2021-10-22 22:21:16,125 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 22:21:16,125 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-10-22 22:21:16,125 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-10-22 22:21:16,125 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-10-22 22:21:16,125 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 22:21:16,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 22:21:16,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-22 22:21:16,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-22 22:21:16,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-22 22:21:16,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-22 22:21:16,341 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-10-22 22:21:16,541 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 [2021-10-22 22:21:16,542 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-22 22:21:16,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 22:21:16,542 INFO L82 PathProgramCache]: Analyzing trace with hash 1236031922, now seen corresponding path program 4 times [2021-10-22 22:21:16,542 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 22:21:16,542 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857715739] [2021-10-22 22:21:16,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 22:21:16,543 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 22:21:16,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 22:21:16,684 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 22 proven. 80 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-22 22:21:16,684 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 22:21:16,685 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857715739] [2021-10-22 22:21:16,685 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857715739] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 22:21:16,685 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1657587207] [2021-10-22 22:21:16,685 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-22 22:21:16,685 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 22:21:16,685 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 22:21:16,686 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) [2021-10-22 22:21:16,687 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-10-22 22:21:16,855 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-22 22:21:16,855 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 22:21:16,856 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-22 22:21:16,857 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 22:21:17,146 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 35 proven. 67 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-22 22:21:17,146 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1657587207] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 22:21:17,147 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 22:21:17,147 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 22 [2021-10-22 22:21:17,147 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835555782] [2021-10-22 22:21:17,147 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-10-22 22:21:17,147 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 22:21:17,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-10-22 22:21:17,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=352, Unknown=0, NotChecked=0, Total=462 [2021-10-22 22:21:17,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 22:21:17,148 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 22:21:17,148 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 3.5) internal successors, (77), 22 states have internal predecessors, (77), 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) [2021-10-22 22:21:17,150 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 22:21:17,150 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-10-22 22:21:17,150 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-10-22 22:21:17,150 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-10-22 22:21:17,150 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-10-22 22:21:17,150 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 22:21:17,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 22:21:17,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-22 22:21:17,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-22 22:21:17,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-22 22:21:17,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-22 22:21:17,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-22 22:21:17,435 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2021-10-22 22:21:17,623 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 [2021-10-22 22:21:17,624 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-22 22:21:17,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 22:21:17,624 INFO L82 PathProgramCache]: Analyzing trace with hash 1206829431, now seen corresponding path program 5 times [2021-10-22 22:21:17,624 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 22:21:17,624 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818508906] [2021-10-22 22:21:17,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 22:21:17,624 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 22:21:17,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 22:21:19,446 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 5 proven. 117 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 22:21:19,446 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 22:21:19,446 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818508906] [2021-10-22 22:21:19,446 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818508906] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 22:21:19,446 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1611014140] [2021-10-22 22:21:19,447 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-22 22:21:19,447 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 22:21:19,447 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 22:21:19,448 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) [2021-10-22 22:21:19,449 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-10-22 22:21:19,668 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2021-10-22 22:21:19,668 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 22:21:19,669 WARN L261 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 63 conjunts are in the unsatisfiable core [2021-10-22 22:21:19,671 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 22:21:22,307 INFO L354 Elim1Store]: treesize reduction 48, result has 54.3 percent of original size [2021-10-22 22:21:22,310 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 15 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 13 case distinctions, treesize of input 97 treesize of output 125 [2021-10-22 22:21:22,398 INFO L354 Elim1Store]: treesize reduction 48, result has 54.3 percent of original size [2021-10-22 22:21:22,399 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 15 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 13 case distinctions, treesize of input 130 treesize of output 168 [2021-10-22 22:21:22,774 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 122 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 22:21:22,774 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1611014140] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 22:21:22,774 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 22:21:22,774 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 33] total 65 [2021-10-22 22:21:22,774 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768006666] [2021-10-22 22:21:22,775 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 65 states [2021-10-22 22:21:22,775 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 22:21:22,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2021-10-22 22:21:22,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=486, Invalid=3674, Unknown=0, NotChecked=0, Total=4160 [2021-10-22 22:21:22,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 22:21:22,777 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 22:21:22,777 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 65 states, 65 states have (on average 1.7230769230769232) internal successors, (112), 65 states have internal predecessors, (112), 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) [2021-10-22 22:21:22,777 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 22:21:22,777 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-10-22 22:21:22,777 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-10-22 22:21:22,777 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-10-22 22:21:22,777 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-10-22 22:21:22,777 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-10-22 22:21:22,777 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 22:21:28,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 22:21:28,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-22 22:21:28,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-22 22:21:28,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-22 22:21:28,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-22 22:21:28,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-22 22:21:28,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-10-22 22:21:28,089 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2021-10-22 22:21:28,288 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 [2021-10-22 22:21:28,289 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-22 22:21:28,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 22:21:28,289 INFO L82 PathProgramCache]: Analyzing trace with hash 1018434299, now seen corresponding path program 6 times [2021-10-22 22:21:28,289 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 22:21:28,289 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840280686] [2021-10-22 22:21:28,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 22:21:28,289 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 22:21:28,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 22:21:28,666 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 127 proven. 130 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 22:21:28,666 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 22:21:28,667 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840280686] [2021-10-22 22:21:28,667 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840280686] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 22:21:28,667 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1038621420] [2021-10-22 22:21:28,667 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-22 22:21:28,667 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 22:21:28,667 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 22:21:28,668 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) [2021-10-22 22:21:28,669 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-10-22 22:21:28,973 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 10 check-sat command(s) [2021-10-22 22:21:28,973 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 22:21:28,974 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 20 conjunts are in the unsatisfiable core [2021-10-22 22:21:28,976 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 22:21:29,420 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 92 proven. 102 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2021-10-22 22:21:29,420 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1038621420] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 22:21:29,420 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 22:21:29,420 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 21] total 41 [2021-10-22 22:21:29,420 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691648478] [2021-10-22 22:21:29,421 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2021-10-22 22:21:29,421 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 22:21:29,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2021-10-22 22:21:29,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=295, Invalid=1345, Unknown=0, NotChecked=0, Total=1640 [2021-10-22 22:21:29,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 22:21:29,422 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 22:21:29,422 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 3.4146341463414633) internal successors, (140), 41 states have internal predecessors, (140), 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) [2021-10-22 22:21:29,422 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 22:21:29,422 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-10-22 22:21:29,422 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-10-22 22:21:29,422 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-10-22 22:21:29,422 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-10-22 22:21:29,422 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-10-22 22:21:29,422 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2021-10-22 22:21:29,422 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 22:21:30,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 22:21:30,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-22 22:21:30,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-22 22:21:30,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-22 22:21:30,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-22 22:21:30,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-22 22:21:30,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-10-22 22:21:30,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-10-22 22:21:30,765 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-10-22 22:21:30,963 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 [2021-10-22 22:21:30,963 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-22 22:21:30,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 22:21:30,964 INFO L82 PathProgramCache]: Analyzing trace with hash 1337741179, now seen corresponding path program 7 times [2021-10-22 22:21:30,964 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 22:21:30,964 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343406950] [2021-10-22 22:21:30,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 22:21:30,964 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 22:21:30,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 22:21:31,442 INFO L134 CoverageAnalysis]: Checked inductivity of 517 backedges. 127 proven. 390 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 22:21:31,443 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 22:21:31,443 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343406950] [2021-10-22 22:21:31,443 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343406950] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 22:21:31,443 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [465106253] [2021-10-22 22:21:31,443 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-22 22:21:31,443 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 22:21:31,443 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 22:21:31,449 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) [2021-10-22 22:21:31,449 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-10-22 22:21:31,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 22:21:31,820 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 34 conjunts are in the unsatisfiable core [2021-10-22 22:21:31,829 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 22:21:32,425 INFO L134 CoverageAnalysis]: Checked inductivity of 517 backedges. 143 proven. 374 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 22:21:32,425 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [465106253] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 22:21:32,426 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 22:21:32,427 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 35] total 43 [2021-10-22 22:21:32,429 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959824469] [2021-10-22 22:21:32,429 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2021-10-22 22:21:32,429 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 22:21:32,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2021-10-22 22:21:32,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=307, Invalid=1499, Unknown=0, NotChecked=0, Total=1806 [2021-10-22 22:21:32,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 22:21:32,430 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 22:21:32,431 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 3.116279069767442) internal successors, (134), 43 states have internal predecessors, (134), 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) [2021-10-22 22:21:32,431 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-22 22:21:32,431 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-10-22 22:21:32,431 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-10-22 22:21:32,431 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-10-22 22:21:32,431 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-10-22 22:21:32,431 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2021-10-22 22:21:32,431 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2021-10-22 22:21:32,431 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2021-10-22 22:21:32,431 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 22:21:33,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-22 22:21:33,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-22 22:21:33,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-22 22:21:33,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-22 22:21:33,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-22 22:21:33,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-22 22:21:33,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-10-22 22:21:33,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-10-22 22:21:33,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-10-22 22:21:33,515 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-10-22 22:21:33,698 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 [2021-10-22 22:21:33,699 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-22 22:21:33,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 22:21:33,699 INFO L82 PathProgramCache]: Analyzing trace with hash -1019606258, now seen corresponding path program 8 times [2021-10-22 22:21:33,699 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 22:21:33,699 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712178695] [2021-10-22 22:21:33,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 22:21:33,699 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 22:21:33,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 22:21:39,696 INFO L134 CoverageAnalysis]: Checked inductivity of 563 backedges. 102 proven. 461 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 22:21:39,696 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 22:21:39,696 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712178695] [2021-10-22 22:21:39,696 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712178695] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 22:21:39,696 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1275526172] [2021-10-22 22:21:39,697 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-22 22:21:39,697 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 22:21:39,697 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 22:21:39,697 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) [2021-10-22 22:21:39,699 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-10-22 22:21:40,119 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-22 22:21:40,119 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 22:21:40,121 WARN L261 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 136 conjunts are in the unsatisfiable core [2021-10-22 22:21:40,123 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 22:22:53,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:22:53,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:22:53,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:22:53,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:22:53,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:22:53,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:22:53,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:22:53,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:22:53,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:22:53,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:22:53,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:22:53,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:22:53,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:22:53,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:22:53,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:22:53,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:22:53,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:22:53,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:22:53,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:22:53,277 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:22:53,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:22:53,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:22:53,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:22:53,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:22:53,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:22:53,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:22:53,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:22:53,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:22:53,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:22:53,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:22:53,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:22:53,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:22:53,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:22:53,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:22:53,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:22:53,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:22:58,427 WARN L207 SmtUtils]: Spent 5.11 s on a formula simplification. DAG size of input: 1031 DAG size of output: 491 [2021-10-22 22:22:58,432 INFO L354 Elim1Store]: treesize reduction 1648, result has 36.2 percent of original size [2021-10-22 22:22:58,433 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 25 select indices, 25 select index equivalence classes, 57 disjoint index pairs (out of 300 index pairs), introduced 25 new quantified variables, introduced 243 case distinctions, treesize of input 269 treesize of output 1109 [2021-10-22 22:22:58,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:22:58,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:22:58,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:22:58,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:22:58,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:22:58,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:22:58,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:22:58,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:22:58,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:22:58,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:22:58,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:22:58,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:22:58,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:22:58,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:22:58,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:22:58,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:22:58,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:22:58,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:22:58,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:22:58,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:22:58,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:22:58,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:22:58,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:22:58,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:22:58,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:22:58,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:22:58,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:22:58,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:22:58,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:22:58,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:22:58,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:22:58,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:22:58,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:22:58,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:22:58,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:22:58,575 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 22:23:03,958 WARN L207 SmtUtils]: Spent 5.38 s on a formula simplification. DAG size of input: 1031 DAG size of output: 491 [2021-10-22 22:23:03,960 INFO L354 Elim1Store]: treesize reduction 1648, result has 36.2 percent of original size [2021-10-22 22:23:03,960 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 25 select indices, 25 select index equivalence classes, 57 disjoint index pairs (out of 300 index pairs), introduced 25 new quantified variables, introduced 243 case distinctions, treesize of input 3490 treesize of output 3382 Received shutdown request... [2021-10-22 22:35:36,277 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 [2021-10-22 22:35:36,278 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 [2021-10-22 22:35:36,281 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2021-10-22 22:35:36,300 WARN L223 SmtUtils]: Removed 1 from assertion stack [2021-10-22 22:35:36,302 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT [2021-10-22 22:35:36,320 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2021-10-22 22:35:36,520 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 [2021-10-22 22:35:36,520 WARN L594 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 115 with TraceHistMax 16,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 59 for 36ms.. [2021-10-22 22:35:36,522 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-22 22:35:36,522 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-22 22:35:36,522 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION [2021-10-22 22:35:36,537 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-22 22:35:36,537 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-22 22:35:36,544 INFO L202 PluginConnector]: Adding new model array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 10:35:36 BasicIcfg [2021-10-22 22:35:36,544 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-22 22:35:36,546 INFO L168 Benchmark]: Toolchain (without parser) took 866136.14 ms. Allocated memory was 167.8 MB in the beginning and 1.1 GB in the end (delta: 956.3 MB). Free memory was 126.8 MB in the beginning and 403.5 MB in the end (delta: -276.8 MB). Peak memory consumption was 702.1 MB. Max. memory is 8.0 GB. [2021-10-22 22:35:36,546 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.10 ms. Allocated memory is still 167.8 MB. Free memory was 127.9 MB in the beginning and 127.8 MB in the end (delta: 72.6 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-10-22 22:35:36,546 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.18 ms. Allocated memory is still 167.8 MB. Free memory was 126.7 MB in the beginning and 125.2 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-10-22 22:35:36,546 INFO L168 Benchmark]: Boogie Preprocessor took 10.49 ms. Allocated memory is still 167.8 MB. Free memory was 125.2 MB in the beginning and 124.2 MB in the end (delta: 956.8 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-10-22 22:35:36,547 INFO L168 Benchmark]: RCFGBuilder took 219.81 ms. Allocated memory is still 167.8 MB. Free memory was 124.1 MB in the beginning and 112.7 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2021-10-22 22:35:36,547 INFO L168 Benchmark]: TraceAbstraction took 865880.53 ms. Allocated memory was 167.8 MB in the beginning and 1.1 GB in the end (delta: 956.3 MB). Free memory was 112.2 MB in the beginning and 403.5 MB in the end (delta: -291.4 MB). Peak memory consumption was 687.4 MB. Max. memory is 8.0 GB. [2021-10-22 22:35:36,548 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 0.10 ms. Allocated memory is still 167.8 MB. Free memory was 127.9 MB in the beginning and 127.8 MB in the end (delta: 72.6 kB). There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 21.18 ms. Allocated memory is still 167.8 MB. Free memory was 126.7 MB in the beginning and 125.2 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 10.49 ms. Allocated memory is still 167.8 MB. Free memory was 125.2 MB in the beginning and 124.2 MB in the end (delta: 956.8 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 219.81 ms. Allocated memory is still 167.8 MB. Free memory was 124.1 MB in the beginning and 112.7 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 865880.53 ms. Allocated memory was 167.8 MB in the beginning and 1.1 GB in the end (delta: 956.3 MB). Free memory was 112.2 MB in the beginning and 403.5 MB in the end (delta: -291.4 MB). Peak memory consumption was 687.4 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: 2572, positive: 2224, positive conditional: 1868, positive unconditional: 356, negative: 348, negative conditional: 348, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2224, positive: 2224, positive conditional: 0, positive unconditional: 2224, 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: 312, positive: 312, positive conditional: 0, positive unconditional: 312, 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: 312, positive: 311, positive conditional: 0, positive unconditional: 311, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 38, positive: 38, positive conditional: 0, positive unconditional: 38, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2224, positive: 1912, positive conditional: 0, positive unconditional: 1912, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 312, unknown conditional: 0, unknown unconditional: 312] , Statistics on independence cache: Total cache size (in pairs): 312, Positive cache size: 312, Positive conditional cache size: 0, Positive unconditional cache size: 312, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Independence queries for same thread: 348 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 74, Number of persistent set computation: 39, Number of trivial persistent sets: 17, Underlying independence relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 2572, positive: 2224, positive conditional: 1868, positive unconditional: 356, negative: 348, negative conditional: 348, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2224, positive: 2224, positive conditional: 0, positive unconditional: 2224, 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: 312, positive: 312, positive conditional: 0, positive unconditional: 312, 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: 312, positive: 311, positive conditional: 0, positive unconditional: 311, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 1, positive conditional: 0, positive unconditional: 1, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 38, positive: 38, positive conditional: 0, positive unconditional: 38, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2224, positive: 1912, positive conditional: 0, positive unconditional: 1912, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 312, unknown conditional: 0, unknown unconditional: 312] , Statistics on independence cache: Total cache size (in pairs): 312, Positive cache size: 312, Positive conditional cache size: 0, Positive unconditional cache size: 312, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Independence queries for same thread: 348 - 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: 60]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PartialOrderCegarLoop was analyzing trace of length 115 with TraceHistMax 16,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 59 for 36ms.. - TimeoutResultAtElement [Line: 53]: 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 115 with TraceHistMax 16,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 59 for 36ms.. - TimeoutResultAtElement [Line: 54]: 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 115 with TraceHistMax 16,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 59 for 36ms.. - TimeoutResultAtElement [Line: 53]: 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 115 with TraceHistMax 16,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 59 for 36ms.. - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 7 procedures, 48 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 865795.8ms, OverallIterations: 10, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 9.0ms, PartialOrderReductionTime: 9280.8ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 212, 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: 50.8ms SsaConstructionTime, 270.4ms SatisfiabilityAnalysisTime, 10147.9ms InterpolantComputationTime, 927 NumberOfCodeBlocks, 927 NumberOfCodeBlocksAsserted, 39 NumberOfCheckSat, 910 ConstructedInterpolants, 32 QuantifiedInterpolants, 14384 SizeOfPredicates, 38 NumberOfNonLiveVariables, 883 ConjunctsInSsa, 198 ConjunctsInUnsatCore, 17 InterpolantComputations, 1 PerfectInterpolantSequences, 680/2181 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