/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-NewStatesSleep-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-fun-alt.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-820ea7a [2022-02-18 23:30:24,457 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-18 23:30:24,458 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-18 23:30:24,504 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-02-18 23:30:24,544 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-18 23:30:24,545 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-18 23:30:24,545 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-18 23:30:24,546 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-NewStatesSleep-NoLbe.epf [2022-02-18 23:30:24,569 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-18 23:30:24,569 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-18 23:30:24,570 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-18 23:30:24,570 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-18 23:30:24,570 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-18 23:30:24,570 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-18 23:30:24,571 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-18 23:30:24,571 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-18 23:30:24,571 INFO L138 SettingsManager]: * Use SBE=true [2022-02-18 23:30:24,571 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-18 23:30:24,572 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-18 23:30:24,572 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-18 23:30:24,572 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-18 23:30:24,572 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-18 23:30:24,572 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-18 23:30:24,572 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-18 23:30:24,572 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-18 23:30:24,572 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-18 23:30:24,572 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-18 23:30:24,572 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-18 23:30:24,572 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-18 23:30:24,572 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-18 23:30:24,573 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-18 23:30:24,573 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-18 23:30:24,573 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-18 23:30:24,573 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-18 23:30:24,573 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-18 23:30:24,573 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-02-18 23:30:24,573 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-18 23:30:24,573 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-18 23:30:24,573 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-18 23:30:24,573 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-18 23:30:24,574 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-18 23:30:24,574 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-18 23:30:24,574 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-18 23:30:24,574 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2022-02-18 23:30:24,574 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-18 23:30:24,750 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-18 23:30:24,766 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-18 23:30:24,767 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-18 23:30:24,768 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-02-18 23:30:24,770 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-02-18 23:30:24,771 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-fun-alt.wvr.bpl [2022-02-18 23:30:24,771 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-fun-alt.wvr.bpl' [2022-02-18 23:30:24,794 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-18 23:30:24,795 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-18 23:30:24,796 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-18 23:30:24,796 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-18 23:30:24,796 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-18 23:30:24,805 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.02 11:30:24" (1/1) ... [2022-02-18 23:30:24,810 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.02 11:30:24" (1/1) ... [2022-02-18 23:30:24,814 INFO L137 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-02-18 23:30:24,815 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-18 23:30:24,816 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-18 23:30:24,816 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-18 23:30:24,817 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-18 23:30:24,822 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.02 11:30:24" (1/1) ... [2022-02-18 23:30:24,822 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.02 11:30:24" (1/1) ... [2022-02-18 23:30:24,823 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.02 11:30:24" (1/1) ... [2022-02-18 23:30:24,823 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.02 11:30:24" (1/1) ... [2022-02-18 23:30:24,825 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.02 11:30:24" (1/1) ... [2022-02-18 23:30:24,826 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.02 11:30:24" (1/1) ... [2022-02-18 23:30:24,827 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.02 11:30:24" (1/1) ... [2022-02-18 23:30:24,828 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-18 23:30:24,828 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-18 23:30:24,828 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-18 23:30:24,828 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-18 23:30:24,829 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.02 11:30:24" (1/1) ... [2022-02-18 23:30:24,834 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-18 23:30:24,841 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 23:30:24,852 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-18 23:30:24,857 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-18 23:30:24,880 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-02-18 23:30:24,880 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-02-18 23:30:24,880 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-02-18 23:30:24,880 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-02-18 23:30:24,881 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-02-18 23:30:24,881 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-02-18 23:30:24,881 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-02-18 23:30:24,881 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-18 23:30:24,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-18 23:30:24,881 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-02-18 23:30:24,881 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-02-18 23:30:24,881 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-02-18 23:30:24,882 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-18 23:30:24,914 INFO L234 CfgBuilder]: Building ICFG [2022-02-18 23:30:24,916 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-18 23:30:25,009 INFO L275 CfgBuilder]: Performing block encoding [2022-02-18 23:30:25,019 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-18 23:30:25,019 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-18 23:30:25,032 INFO L202 PluginConnector]: Adding new model sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 11:30:25 BoogieIcfgContainer [2022-02-18 23:30:25,032 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-18 23:30:25,033 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-18 23:30:25,033 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-18 23:30:25,036 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-18 23:30:25,036 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.02 11:30:24" (1/2) ... [2022-02-18 23:30:25,038 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c8b454 and model type sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.02 11:30:25, skipping insertion in model container [2022-02-18 23:30:25,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.02 11:30:25" (2/2) ... [2022-02-18 23:30:25,040 INFO L111 eAbstractionObserver]: Analyzing ICFG sum-fun-alt.wvr.bpl [2022-02-18 23:30:25,046 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-18 23:30:25,046 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-18 23:30:25,046 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-18 23:30:25,046 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-18 23:30:25,092 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-02-18 23:30:25,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-18 23:30:25,138 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 23:30:25,167 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-02-18 23:30:25,174 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-02-18 23:30:25,197 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-18 23:30:25,203 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mLazyFiniteAutomaton=true, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-02-18 23:30:25,203 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-02-18 23:30:25,324 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 23:30:25,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 23:30:25,342 INFO L85 PathProgramCache]: Analyzing trace with hash 1204265674, now seen corresponding path program 1 times [2022-02-18 23:30:25,347 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 23:30:25,348 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935489690] [2022-02-18 23:30:25,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 23:30:25,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 23:30:25,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 23:30:25,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 23:30:25,454 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 23:30:25,455 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935489690] [2022-02-18 23:30:25,455 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935489690] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 23:30:25,455 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 23:30:25,455 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-18 23:30:25,456 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575708381] [2022-02-18 23:30:25,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 23:30:25,459 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-18 23:30:25,459 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 23:30:25,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-18 23:30:25,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-18 23:30:25,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 23:30:25,474 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-18 23:30:25,475 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 23:30:25,475 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 23:30:25,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-18 23:30:25,495 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-18 23:30:25,495 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 23:30:25,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 23:30:25,495 INFO L85 PathProgramCache]: Analyzing trace with hash 2132727720, now seen corresponding path program 1 times [2022-02-18 23:30:25,496 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 23:30:25,496 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162191656] [2022-02-18 23:30:25,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 23:30:25,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 23:30:25,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 23:30:25,567 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-18 23:30:25,567 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 23:30:25,567 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162191656] [2022-02-18 23:30:25,567 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162191656] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-18 23:30:25,567 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-18 23:30:25,568 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-18 23:30:25,568 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666691168] [2022-02-18 23:30:25,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-18 23:30:25,569 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-18 23:30:25,569 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 23:30:25,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-18 23:30:25,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-18 23:30:25,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 23:30:25,570 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-18 23:30:25,570 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 23:30:25,570 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-18 23:30:25,570 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 23:30:25,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-18 23:30:25,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-18 23:30:25,605 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-18 23:30:25,605 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 23:30:25,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 23:30:25,606 INFO L85 PathProgramCache]: Analyzing trace with hash 1289378822, now seen corresponding path program 1 times [2022-02-18 23:30:25,606 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 23:30:25,606 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687487300] [2022-02-18 23:30:25,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 23:30:25,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 23:30:25,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 23:30:25,920 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 23:30:25,920 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 23:30:25,921 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687487300] [2022-02-18 23:30:25,921 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687487300] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 23:30:25,921 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1285316672] [2022-02-18 23:30:25,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 23:30:25,921 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 23:30:25,921 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 23:30:25,923 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-18 23:30:25,924 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-18 23:30:25,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 23:30:25,954 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 16 conjunts are in the unsatisfiable core [2022-02-18 23:30:25,958 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 23:30:26,221 INFO L353 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-02-18 23:30:26,222 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 27 [2022-02-18 23:30:26,283 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 23:30:26,283 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-18 23:30:26,397 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-18 23:30:26,397 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 16 [2022-02-18 23:30:26,419 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 5 [2022-02-18 23:30:26,550 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 23:30:26,551 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1285316672] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-18 23:30:26,551 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-18 23:30:26,551 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2022-02-18 23:30:26,553 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212779046] [2022-02-18 23:30:26,554 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-18 23:30:26,555 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-18 23:30:26,555 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 23:30:26,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-18 23:30:26,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306 [2022-02-18 23:30:26,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 23:30:26,558 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-18 23:30:26,558 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.7222222222222223) internal successors, (49), 17 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 23:30:26,558 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-18 23:30:26,559 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-18 23:30:26,559 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 23:30:26,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-18 23:30:26,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-18 23:30:26,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-18 23:30:26,796 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-02-18 23:30:26,978 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,SelfDestructingSolverStorable2 [2022-02-18 23:30:26,978 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 23:30:26,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 23:30:26,980 INFO L85 PathProgramCache]: Analyzing trace with hash -374345244, now seen corresponding path program 2 times [2022-02-18 23:30:26,980 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 23:30:26,980 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165517647] [2022-02-18 23:30:26,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 23:30:26,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 23:30:26,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 23:30:27,029 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 23:30:27,030 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 23:30:27,030 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165517647] [2022-02-18 23:30:27,030 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165517647] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 23:30:27,030 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1455000828] [2022-02-18 23:30:27,030 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-18 23:30:27,030 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 23:30:27,030 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 23:30:27,031 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-18 23:30:27,032 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-18 23:30:27,057 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-18 23:30:27,058 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-18 23:30:27,058 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 7 conjunts are in the unsatisfiable core [2022-02-18 23:30:27,059 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 23:30:27,179 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 23:30:27,180 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-18 23:30:27,280 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 23:30:27,280 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1455000828] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-18 23:30:27,281 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-18 23:30:27,281 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 15 [2022-02-18 23:30:27,281 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524092997] [2022-02-18 23:30:27,281 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-18 23:30:27,281 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-02-18 23:30:27,281 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 23:30:27,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-02-18 23:30:27,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2022-02-18 23:30:27,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 23:30:27,283 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-18 23:30:27,283 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.1333333333333333) internal successors, (47), 15 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 23:30:27,283 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-18 23:30:27,283 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-18 23:30:27,283 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-18 23:30:27,283 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 23:30:27,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-18 23:30:27,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-18 23:30:27,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-18 23:30:27,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-18 23:30:27,525 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-02-18 23:30:27,707 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 23:30:27,708 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 23:30:27,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 23:30:27,708 INFO L85 PathProgramCache]: Analyzing trace with hash 359763488, now seen corresponding path program 1 times [2022-02-18 23:30:27,708 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 23:30:27,708 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594466481] [2022-02-18 23:30:27,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 23:30:27,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 23:30:27,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 23:30:27,767 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-18 23:30:27,767 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 23:30:27,768 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594466481] [2022-02-18 23:30:27,768 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594466481] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 23:30:27,768 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1186982000] [2022-02-18 23:30:27,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 23:30:27,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 23:30:27,768 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 23:30:27,769 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-18 23:30:27,770 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-18 23:30:27,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 23:30:27,800 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 7 conjunts are in the unsatisfiable core [2022-02-18 23:30:27,801 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 23:30:27,885 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-18 23:30:27,885 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-18 23:30:27,965 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-18 23:30:27,965 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1186982000] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-18 23:30:27,965 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-18 23:30:27,965 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 14 [2022-02-18 23:30:27,966 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601403573] [2022-02-18 23:30:27,966 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-18 23:30:27,966 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-18 23:30:27,966 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 23:30:27,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-18 23:30:27,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=117, Unknown=0, NotChecked=0, Total=182 [2022-02-18 23:30:27,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 23:30:27,967 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-18 23:30:27,967 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.4285714285714284) internal successors, (48), 14 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 23:30:27,967 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-18 23:30:27,967 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-18 23:30:27,967 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-18 23:30:27,967 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-02-18 23:30:27,967 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 23:30:28,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-18 23:30:28,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-18 23:30:28,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-18 23:30:28,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-18 23:30:28,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-18 23:30:28,096 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-02-18 23:30:28,293 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 23:30:28,294 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 23:30:28,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 23:30:28,294 INFO L85 PathProgramCache]: Analyzing trace with hash -559233666, now seen corresponding path program 2 times [2022-02-18 23:30:28,294 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 23:30:28,294 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239551240] [2022-02-18 23:30:28,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 23:30:28,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 23:30:28,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 23:30:28,567 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 23:30:28,567 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 23:30:28,568 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239551240] [2022-02-18 23:30:28,568 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239551240] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 23:30:28,568 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [29782332] [2022-02-18 23:30:28,568 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-18 23:30:28,568 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 23:30:28,568 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 23:30:28,569 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-18 23:30:28,570 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-02-18 23:30:28,593 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-18 23:30:28,594 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-18 23:30:28,594 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 32 conjunts are in the unsatisfiable core [2022-02-18 23:30:28,595 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 23:30:28,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 23:30:28,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 23:30:28,967 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:30:28,968 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-02-18 23:30:29,038 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 23:30:29,038 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-18 23:30:29,321 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:30:29,387 INFO L353 Elim1Store]: treesize reduction 38, result has 73.0 percent of original size [2022-02-18 23:30:29,388 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 14 case distinctions, treesize of input 29 treesize of output 114 [2022-02-18 23:30:30,464 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:30:30,465 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:30:30,471 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:30:30,477 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:30:30,478 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:30:30,479 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:30:30,479 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:30:30,480 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:30:30,481 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:30:30,497 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-18 23:30:30,497 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 9 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 29 treesize of output 72 [2022-02-18 23:30:30,771 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 23:30:30,772 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [29782332] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-18 23:30:30,772 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-18 23:30:30,772 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 12] total 30 [2022-02-18 23:30:30,772 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40753059] [2022-02-18 23:30:30,772 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-18 23:30:30,772 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-02-18 23:30:30,773 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 23:30:30,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-02-18 23:30:30,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=773, Unknown=0, NotChecked=0, Total=870 [2022-02-18 23:30:30,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 23:30:30,774 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-18 23:30:30,774 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 2.3333333333333335) internal successors, (70), 30 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 23:30:30,774 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-18 23:30:30,774 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-18 23:30:30,774 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-18 23:30:30,774 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-02-18 23:30:30,774 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-02-18 23:30:30,774 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 23:30:31,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-18 23:30:31,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-18 23:30:31,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-18 23:30:31,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-18 23:30:31,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-18 23:30:31,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-18 23:30:31,866 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-02-18 23:30:32,049 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 23:30:32,049 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 23:30:32,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 23:30:32,049 INFO L85 PathProgramCache]: Analyzing trace with hash -1978366790, now seen corresponding path program 3 times [2022-02-18 23:30:32,050 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 23:30:32,050 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227654051] [2022-02-18 23:30:32,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 23:30:32,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 23:30:32,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 23:30:32,392 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 23:30:32,392 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 23:30:32,392 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227654051] [2022-02-18 23:30:32,392 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227654051] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 23:30:32,392 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1168988930] [2022-02-18 23:30:32,392 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-18 23:30:32,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 23:30:32,393 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 23:30:32,394 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-18 23:30:32,395 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-02-18 23:30:32,420 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2022-02-18 23:30:32,420 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-18 23:30:32,421 WARN L261 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 43 conjunts are in the unsatisfiable core [2022-02-18 23:30:32,422 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 23:30:32,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 23:30:32,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 23:30:32,935 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-18 23:30:32,935 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 7 case distinctions, treesize of input 36 treesize of output 80 [2022-02-18 23:30:33,110 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 23:30:33,110 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-18 23:30:33,705 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:30:33,706 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:30:33,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 23:30:33,707 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:30:33,707 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:30:33,708 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:30:33,708 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:30:33,709 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:30:33,709 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:30:33,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 23:30:33,755 INFO L353 Elim1Store]: treesize reduction 20, result has 78.9 percent of original size [2022-02-18 23:30:33,755 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 6 disjoint index pairs (out of 28 index pairs), introduced 6 new quantified variables, introduced 13 case distinctions, treesize of input 39 treesize of output 84 [2022-02-18 23:30:33,847 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:30:33,847 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:30:33,850 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:30:33,850 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:30:33,851 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:30:33,851 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:30:33,851 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:30:33,852 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:30:33,853 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 23:30:33,853 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:30:33,854 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:30:33,854 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:30:33,854 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:30:33,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 23:30:33,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 23:30:33,858 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 6 disjoint index pairs (out of 28 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 3 [2022-02-18 23:30:33,991 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 23:30:33,992 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1168988930] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-18 23:30:33,992 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-18 23:30:33,992 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 16] total 38 [2022-02-18 23:30:33,993 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178503614] [2022-02-18 23:30:33,993 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-18 23:30:33,993 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-02-18 23:30:33,993 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 23:30:33,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-02-18 23:30:33,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=1283, Unknown=0, NotChecked=0, Total=1406 [2022-02-18 23:30:33,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 23:30:33,994 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-18 23:30:33,994 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 2.210526315789474) internal successors, (84), 38 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 23:30:33,994 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-18 23:30:33,994 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-18 23:30:33,994 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-18 23:30:33,994 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-02-18 23:30:33,995 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-02-18 23:30:33,995 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-18 23:30:33,995 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 23:30:39,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-18 23:30:39,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-18 23:30:39,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-18 23:30:39,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-18 23:30:39,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-18 23:30:39,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-18 23:30:39,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-02-18 23:30:39,099 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-02-18 23:30:39,280 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 23:30:39,281 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 23:30:39,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 23:30:39,281 INFO L85 PathProgramCache]: Analyzing trace with hash -134951306, now seen corresponding path program 4 times [2022-02-18 23:30:39,281 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 23:30:39,281 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827472057] [2022-02-18 23:30:39,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 23:30:39,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 23:30:39,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 23:30:39,687 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 23:30:39,687 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 23:30:39,687 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827472057] [2022-02-18 23:30:39,687 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1827472057] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 23:30:39,687 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [400463207] [2022-02-18 23:30:39,687 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-18 23:30:39,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 23:30:39,688 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 23:30:39,689 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-18 23:30:39,690 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-02-18 23:30:39,726 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-18 23:30:39,726 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-18 23:30:39,727 WARN L261 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 48 conjunts are in the unsatisfiable core [2022-02-18 23:30:39,728 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 23:30:40,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 23:30:40,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 23:30:40,280 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:30:40,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 23:30:40,281 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:30:40,281 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 20 [2022-02-18 23:30:40,317 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 23:30:40,317 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-18 23:30:40,867 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:30:40,867 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:30:40,868 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:30:41,178 INFO L353 Elim1Store]: treesize reduction 158, result has 65.3 percent of original size [2022-02-18 23:30:41,178 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 3 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 42 case distinctions, treesize of input 49 treesize of output 312 [2022-02-18 23:30:52,409 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:30:52,410 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:30:52,410 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:30:52,411 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:30:52,412 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:30:52,412 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:30:52,412 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:30:52,413 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:30:52,414 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:30:52,415 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:30:52,415 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:30:52,415 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:30:52,416 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:30:52,416 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:30:52,416 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:30:52,417 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:30:52,417 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:30:52,418 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:30:52,419 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:30:52,419 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:30:52,420 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:30:52,420 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:30:52,420 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:30:52,421 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:30:52,422 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:30:52,423 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:30:52,423 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:30:52,423 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:30:52,424 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:30:52,424 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:30:52,425 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:30:52,425 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:30:52,426 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:30:52,427 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:30:52,427 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:30:52,460 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-18 23:30:52,461 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 35 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 10 case distinctions, treesize of input 50 treesize of output 125 [2022-02-18 23:30:52,844 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 23:30:52,844 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [400463207] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-18 23:30:52,844 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-18 23:30:52,844 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 16, 16] total 43 [2022-02-18 23:30:52,844 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948702490] [2022-02-18 23:30:52,844 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-18 23:30:52,845 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2022-02-18 23:30:52,845 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 23:30:52,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2022-02-18 23:30:52,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=1666, Unknown=0, NotChecked=0, Total=1806 [2022-02-18 23:30:52,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 23:30:52,846 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-18 23:30:52,846 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 2.255813953488372) internal successors, (97), 43 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 23:30:52,846 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-18 23:30:52,846 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-18 23:30:52,846 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-18 23:30:52,846 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-02-18 23:30:52,846 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-02-18 23:30:52,846 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-18 23:30:52,846 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2022-02-18 23:30:52,846 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 23:30:58,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-18 23:30:58,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-18 23:30:58,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-18 23:30:58,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-18 23:30:58,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-18 23:30:58,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-18 23:30:58,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-02-18 23:30:58,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-02-18 23:30:59,014 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-02-18 23:30:59,199 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 23:30:59,199 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 23:30:59,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 23:30:59,199 INFO L85 PathProgramCache]: Analyzing trace with hash 1072806450, now seen corresponding path program 5 times [2022-02-18 23:30:59,200 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 23:30:59,200 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349053248] [2022-02-18 23:30:59,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 23:30:59,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 23:30:59,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 23:30:59,691 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 23:30:59,691 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 23:30:59,692 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349053248] [2022-02-18 23:30:59,692 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349053248] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 23:30:59,692 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [35407420] [2022-02-18 23:30:59,692 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-18 23:30:59,692 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 23:30:59,692 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 23:30:59,693 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-18 23:30:59,693 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-02-18 23:30:59,724 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2022-02-18 23:30:59,724 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-18 23:30:59,725 WARN L261 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 55 conjunts are in the unsatisfiable core [2022-02-18 23:30:59,726 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 23:31:00,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 23:31:00,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 23:31:00,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 23:31:00,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 23:31:00,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 23:31:00,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 23:31:00,686 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:31:00,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 23:31:00,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 23:31:00,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 23:31:00,688 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:31:00,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 23:31:00,690 INFO L387 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 6 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 24 [2022-02-18 23:31:00,729 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 23:31:00,729 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-18 23:31:01,966 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:31:01,969 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:31:01,969 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:31:01,972 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:31:01,973 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:31:01,975 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:31:01,975 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:31:01,975 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:31:01,978 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:31:01,979 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:31:01,983 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:31:01,991 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:31:01,991 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:31:01,992 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:31:01,996 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:31:02,369 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-18 23:31:02,369 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 12 select indices, 12 select index equivalence classes, 15 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 51 case distinctions, treesize of input 116 treesize of output 579 [2022-02-18 23:36:26,385 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 23:36:26,386 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [35407420] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-18 23:36:26,386 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-18 23:36:26,386 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 19] total 51 [2022-02-18 23:36:26,386 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290857062] [2022-02-18 23:36:26,386 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-18 23:36:26,387 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2022-02-18 23:36:26,387 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 23:36:26,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2022-02-18 23:36:26,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=192, Invalid=2358, Unknown=0, NotChecked=0, Total=2550 [2022-02-18 23:36:26,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 23:36:26,388 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-18 23:36:26,388 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 51 states have (on average 2.1372549019607843) internal successors, (109), 51 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 23:36:26,388 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-18 23:36:26,388 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-18 23:36:26,388 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-18 23:36:26,388 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-02-18 23:36:26,388 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-02-18 23:36:26,388 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-18 23:36:26,388 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2022-02-18 23:36:26,388 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2022-02-18 23:36:26,388 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 23:36:32,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-18 23:36:32,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-18 23:36:32,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-18 23:36:32,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-18 23:36:32,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-18 23:36:32,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-18 23:36:32,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-02-18 23:36:32,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-02-18 23:36:32,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-02-18 23:36:32,720 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-02-18 23:36:32,915 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,SelfDestructingSolverStorable8 [2022-02-18 23:36:32,915 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 23:36:32,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 23:36:32,916 INFO L85 PathProgramCache]: Analyzing trace with hash 1746563182, now seen corresponding path program 6 times [2022-02-18 23:36:32,916 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 23:36:32,916 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706011281] [2022-02-18 23:36:32,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 23:36:32,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 23:36:32,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 23:36:33,049 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 36 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 23:36:33,050 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 23:36:33,050 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706011281] [2022-02-18 23:36:33,050 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706011281] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 23:36:33,050 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [259256526] [2022-02-18 23:36:33,050 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-02-18 23:36:33,050 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 23:36:33,050 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 23:36:33,051 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-18 23:36:33,052 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-02-18 23:36:33,083 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) [2022-02-18 23:36:33,084 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-18 23:36:33,084 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 18 conjunts are in the unsatisfiable core [2022-02-18 23:36:33,085 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 23:36:33,411 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 49 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 23:36:33,412 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-18 23:36:33,741 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 49 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 23:36:33,741 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [259256526] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-18 23:36:33,741 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-18 23:36:33,741 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 19] total 48 [2022-02-18 23:36:33,742 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788605118] [2022-02-18 23:36:33,742 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-18 23:36:33,742 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-02-18 23:36:33,742 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 23:36:33,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-02-18 23:36:33,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=406, Invalid=1850, Unknown=0, NotChecked=0, Total=2256 [2022-02-18 23:36:33,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 23:36:33,743 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-18 23:36:33,743 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 2.375) internal successors, (114), 48 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 23:36:33,743 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-18 23:36:33,743 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-18 23:36:33,743 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-18 23:36:33,744 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-02-18 23:36:33,744 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-02-18 23:36:33,744 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-18 23:36:33,744 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2022-02-18 23:36:33,744 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2022-02-18 23:36:33,744 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states. [2022-02-18 23:36:33,744 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 23:36:34,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-18 23:36:34,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-18 23:36:34,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-18 23:36:34,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-18 23:36:34,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-18 23:36:34,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-18 23:36:34,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-02-18 23:36:34,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-02-18 23:36:34,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-02-18 23:36:34,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-02-18 23:36:34,997 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-02-18 23:36:35,179 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-02-18 23:36:35,180 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 23:36:35,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 23:36:35,180 INFO L85 PathProgramCache]: Analyzing trace with hash 171013700, now seen corresponding path program 7 times [2022-02-18 23:36:35,180 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 23:36:35,180 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465674254] [2022-02-18 23:36:35,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 23:36:35,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 23:36:35,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 23:36:35,369 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 68 proven. 81 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 23:36:35,370 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 23:36:35,370 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465674254] [2022-02-18 23:36:35,370 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465674254] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 23:36:35,370 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1180270110] [2022-02-18 23:36:35,370 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-02-18 23:36:35,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 23:36:35,370 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 23:36:35,371 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-18 23:36:35,372 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-02-18 23:36:35,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 23:36:35,402 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 19 conjunts are in the unsatisfiable core [2022-02-18 23:36:35,403 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 23:36:35,748 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 79 proven. 64 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-18 23:36:35,748 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-18 23:36:36,013 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 79 proven. 64 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-18 23:36:36,013 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1180270110] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-18 23:36:36,013 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-18 23:36:36,013 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 20, 20] total 50 [2022-02-18 23:36:36,013 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167847993] [2022-02-18 23:36:36,013 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-18 23:36:36,014 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-02-18 23:36:36,014 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 23:36:36,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-02-18 23:36:36,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=397, Invalid=2053, Unknown=0, NotChecked=0, Total=2450 [2022-02-18 23:36:36,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 23:36:36,015 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-18 23:36:36,015 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 2.44) internal successors, (122), 50 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 23:36:36,015 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-18 23:36:36,015 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-18 23:36:36,015 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-18 23:36:36,015 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-02-18 23:36:36,015 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-02-18 23:36:36,015 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-18 23:36:36,015 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2022-02-18 23:36:36,015 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2022-02-18 23:36:36,016 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states. [2022-02-18 23:36:36,016 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 66 states. [2022-02-18 23:36:36,016 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 23:36:36,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-18 23:36:36,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-18 23:36:36,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-18 23:36:36,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-18 23:36:36,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-18 23:36:36,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-18 23:36:36,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-02-18 23:36:36,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-02-18 23:36:36,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-02-18 23:36:36,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-02-18 23:36:36,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-02-18 23:36:36,724 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-02-18 23:36:36,908 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,SelfDestructingSolverStorable10 [2022-02-18 23:36:36,908 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 23:36:36,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 23:36:36,909 INFO L85 PathProgramCache]: Analyzing trace with hash -1990716254, now seen corresponding path program 8 times [2022-02-18 23:36:36,909 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 23:36:36,909 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046410372] [2022-02-18 23:36:36,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 23:36:36,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 23:36:36,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 23:36:37,083 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 68 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 23:36:37,084 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 23:36:37,084 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046410372] [2022-02-18 23:36:37,084 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1046410372] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 23:36:37,084 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2053250402] [2022-02-18 23:36:37,084 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-18 23:36:37,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 23:36:37,084 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 23:36:37,085 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-18 23:36:37,085 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-02-18 23:36:37,120 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-18 23:36:37,120 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-18 23:36:37,121 INFO L263 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 21 conjunts are in the unsatisfiable core [2022-02-18 23:36:37,122 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 23:36:37,499 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 81 proven. 81 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-18 23:36:37,499 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-18 23:36:37,816 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 81 proven. 81 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-18 23:36:37,816 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2053250402] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-18 23:36:37,816 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-18 23:36:37,816 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 22, 22] total 54 [2022-02-18 23:36:37,816 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867525485] [2022-02-18 23:36:37,816 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-18 23:36:37,817 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2022-02-18 23:36:37,817 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 23:36:37,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2022-02-18 23:36:37,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=469, Invalid=2393, Unknown=0, NotChecked=0, Total=2862 [2022-02-18 23:36:37,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 23:36:37,818 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-18 23:36:37,818 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 54 states have (on average 2.388888888888889) internal successors, (129), 54 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 23:36:37,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-18 23:36:37,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-18 23:36:37,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-18 23:36:37,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-02-18 23:36:37,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-02-18 23:36:37,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-18 23:36:37,819 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2022-02-18 23:36:37,819 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2022-02-18 23:36:37,819 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states. [2022-02-18 23:36:37,819 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 66 states. [2022-02-18 23:36:37,819 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2022-02-18 23:36:37,819 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 23:36:38,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-18 23:36:38,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-18 23:36:38,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-18 23:36:38,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-18 23:36:38,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-18 23:36:38,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-18 23:36:38,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-02-18 23:36:38,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-02-18 23:36:38,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-02-18 23:36:38,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-02-18 23:36:38,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-02-18 23:36:38,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-02-18 23:36:38,658 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-02-18 23:36:38,851 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-02-18 23:36:38,851 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 23:36:38,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 23:36:38,852 INFO L85 PathProgramCache]: Analyzing trace with hash -649030784, now seen corresponding path program 9 times [2022-02-18 23:36:38,852 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 23:36:38,852 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524462840] [2022-02-18 23:36:38,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 23:36:38,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 23:36:38,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 23:36:39,076 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 68 proven. 117 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 23:36:39,077 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 23:36:39,077 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524462840] [2022-02-18 23:36:39,077 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524462840] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 23:36:39,077 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2010829419] [2022-02-18 23:36:39,077 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-18 23:36:39,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 23:36:39,077 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 23:36:39,078 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-18 23:36:39,078 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-02-18 23:36:39,112 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-02-18 23:36:39,112 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-18 23:36:39,113 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 24 conjunts are in the unsatisfiable core [2022-02-18 23:36:39,114 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 23:36:39,568 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 68 proven. 117 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 23:36:39,568 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-18 23:36:40,107 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 85 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 23:36:40,107 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2010829419] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-18 23:36:40,107 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-18 23:36:40,107 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 66 [2022-02-18 23:36:40,108 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901117733] [2022-02-18 23:36:40,108 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-18 23:36:40,109 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2022-02-18 23:36:40,109 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-18 23:36:40,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2022-02-18 23:36:40,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=768, Invalid=3522, Unknown=0, NotChecked=0, Total=4290 [2022-02-18 23:36:40,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-18 23:36:40,110 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-18 23:36:40,111 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 2.227272727272727) internal successors, (147), 66 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-18 23:36:40,111 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-18 23:36:40,111 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-18 23:36:40,111 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-18 23:36:40,111 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-02-18 23:36:40,111 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-02-18 23:36:40,111 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-18 23:36:40,111 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2022-02-18 23:36:40,111 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2022-02-18 23:36:40,111 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states. [2022-02-18 23:36:40,111 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 66 states. [2022-02-18 23:36:40,111 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2022-02-18 23:36:40,111 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2022-02-18 23:36:40,111 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-18 23:36:40,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-18 23:36:40,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-18 23:36:40,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-18 23:36:40,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-18 23:36:40,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-18 23:36:40,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-18 23:36:40,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-02-18 23:36:40,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-02-18 23:36:40,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-02-18 23:36:40,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-02-18 23:36:40,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-02-18 23:36:40,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-02-18 23:36:40,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-02-18 23:36:40,719 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-02-18 23:36:40,901 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-02-18 23:36:40,902 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-18 23:36:40,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-18 23:36:40,902 INFO L85 PathProgramCache]: Analyzing trace with hash 220517086, now seen corresponding path program 10 times [2022-02-18 23:36:40,902 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-18 23:36:40,902 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919764320] [2022-02-18 23:36:40,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-18 23:36:40,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-18 23:36:40,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-18 23:36:41,870 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 0 proven. 206 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 23:36:41,870 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-18 23:36:41,870 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919764320] [2022-02-18 23:36:41,870 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919764320] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-18 23:36:41,870 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1400370382] [2022-02-18 23:36:41,870 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-18 23:36:41,870 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-18 23:36:41,871 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-18 23:36:41,871 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-18 23:36:41,872 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-02-18 23:36:41,906 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-18 23:36:41,906 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-18 23:36:41,907 WARN L261 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 96 conjunts are in the unsatisfiable core [2022-02-18 23:36:41,908 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-18 23:36:43,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 23:36:43,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 23:36:43,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 23:36:43,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 23:36:43,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 23:36:43,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 23:36:43,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 23:36:43,829 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:36:43,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 23:36:43,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 23:36:43,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 23:36:43,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 23:36:43,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 23:36:43,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 23:36:43,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 23:36:43,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 23:36:43,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 23:36:43,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 23:36:43,837 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 23:36:43,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 23:36:43,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 23:36:43,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 23:36:43,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 23:36:43,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 23:36:43,841 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 23:36:43,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 23:36:43,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 23:36:43,843 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 23:36:43,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 23:36:43,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 23:36:43,845 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:36:43,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 23:36:43,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 23:36:43,847 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 23:36:43,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 23:36:43,848 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 23:36:43,849 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:36:43,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 23:36:43,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-18 23:36:43,851 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 14 select indices, 14 select index equivalence classes, 55 disjoint index pairs (out of 91 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 119 treesize of output 43 [2022-02-18 23:36:43,914 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 0 proven. 206 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-18 23:36:43,914 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-18 23:36:45,295 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:36:45,296 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:36:45,296 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:36:45,296 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:36:45,296 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:36:45,297 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:36:45,297 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:36:45,297 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:36:45,298 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:36:45,298 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:36:45,298 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:36:45,298 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:36:45,299 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:36:45,299 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:36:45,299 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:36:45,300 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:36:45,300 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:36:45,300 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:36:45,300 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:36:45,315 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:36:45,316 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:36:45,316 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:36:45,316 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:36:45,316 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:36:45,317 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:36:45,317 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:36:45,317 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:36:45,318 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:36:45,318 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:36:45,318 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:36:45,318 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:36:45,319 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:36:45,319 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:36:45,319 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:36:45,320 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:36:45,320 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-18 23:36:50,172 INFO L353 Elim1Store]: treesize reduction 914, result has 60.5 percent of original size [2022-02-18 23:36:50,173 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 22 select indices, 22 select index equivalence classes, 36 disjoint index pairs (out of 231 index pairs), introduced 22 new quantified variables, introduced 195 case distinctions, treesize of input 113 treesize of output 1428 Received shutdown request... [2022-02-18 23:44:30,221 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-02-18 23:44:30,221 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-02-18 23:44:30,228 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-02-18 23:44:30,232 WARN L244 SmtUtils]: Removed 2 from assertion stack [2022-02-18 23:44:30,234 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (3 of 4 remaining) [2022-02-18 23:44:30,250 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2022-02-18 23:44:30,434 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-02-18 23:44:30,434 WARN L594 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 63 with TraceHistMax 11,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 28ms.. [2022-02-18 23:44:30,436 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-02-18 23:44:30,436 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-02-18 23:44:30,436 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-02-18 23:44:30,439 INFO L732 BasicCegarLoop]: Path program histogram: [10, 2, 1, 1] [2022-02-18 23:44:30,440 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-18 23:44:30,440 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-18 23:44:30,441 INFO L202 PluginConnector]: Adding new model sum-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.02 11:44:30 BasicIcfg [2022-02-18 23:44:30,442 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-18 23:44:30,442 INFO L158 Benchmark]: Toolchain (without parser) took 845646.71ms. Allocated memory was 201.3MB in the beginning and 607.1MB in the end (delta: 405.8MB). Free memory was 166.0MB in the beginning and 299.3MB in the end (delta: -133.3MB). Peak memory consumption was 393.6MB. Max. memory is 8.0GB. [2022-02-18 23:44:30,442 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.12ms. Allocated memory is still 201.3MB. Free memory was 167.2MB in the beginning and 167.1MB in the end (delta: 74.1kB). There was no memory consumed. Max. memory is 8.0GB. [2022-02-18 23:44:30,442 INFO L158 Benchmark]: Boogie Procedure Inliner took 19.32ms. Allocated memory is still 201.3MB. Free memory was 165.9MB in the beginning and 164.4MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-18 23:44:30,442 INFO L158 Benchmark]: Boogie Preprocessor took 11.65ms. Allocated memory is still 201.3MB. Free memory was 164.4MB in the beginning and 163.4MB in the end (delta: 959.8kB). There was no memory consumed. Max. memory is 8.0GB. [2022-02-18 23:44:30,442 INFO L158 Benchmark]: RCFGBuilder took 203.87ms. Allocated memory is still 201.3MB. Free memory was 163.4MB in the beginning and 153.9MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-02-18 23:44:30,443 INFO L158 Benchmark]: TraceAbstraction took 845408.40ms. Allocated memory was 201.3MB in the beginning and 607.1MB in the end (delta: 405.8MB). Free memory was 153.4MB in the beginning and 299.3MB in the end (delta: -145.9MB). Peak memory consumption was 381.0MB. Max. memory is 8.0GB. [2022-02-18 23:44:30,443 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 0.12ms. Allocated memory is still 201.3MB. Free memory was 167.2MB in the beginning and 167.1MB in the end (delta: 74.1kB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 19.32ms. Allocated memory is still 201.3MB. Free memory was 165.9MB in the beginning and 164.4MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 11.65ms. Allocated memory is still 201.3MB. Free memory was 164.4MB in the beginning and 163.4MB in the end (delta: 959.8kB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 203.87ms. Allocated memory is still 201.3MB. Free memory was 163.4MB in the beginning and 153.9MB in the end (delta: 9.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * TraceAbstraction took 845408.40ms. Allocated memory was 201.3MB in the beginning and 607.1MB in the end (delta: 405.8MB). Free memory was 153.4MB in the beginning and 299.3MB in the end (delta: -145.9MB). Peak memory consumption was 381.0MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 3770, positive: 3027, positive conditional: 3027, positive unconditional: 0, negative: 743, negative conditional: 743, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3027, positive: 3027, positive conditional: 3027, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 3027, positive: 3027, positive conditional: 3027, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 3027, positive: 3027, positive conditional: 2854, positive unconditional: 173, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 3027, positive: 3027, positive conditional: 2760, positive unconditional: 267, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 3027, positive: 3027, positive conditional: 2760, positive unconditional: 267, 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: 51, positive: 51, positive conditional: 0, positive unconditional: 51, 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: 51, positive: 50, positive conditional: 0, positive unconditional: 50, 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: 57, positive: 57, positive conditional: 0, positive unconditional: 57, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3027, positive: 2976, positive conditional: 2760, positive unconditional: 216, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 51, unknown conditional: 0, unknown unconditional: 51] , Statistics on independence cache: Total cache size (in pairs): 51, Positive cache size: 51, Positive conditional cache size: 0, Positive unconditional cache size: 51, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 94, Maximal queried relation: 0, Independence queries for same thread: 743 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 65]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PartialOrderCegarLoop was analyzing trace of length 63 with TraceHistMax 11,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 28ms.. - TimeoutResultAtElement [Line: 58]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 63 with TraceHistMax 11,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 28ms.. - TimeoutResultAtElement [Line: 59]: 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 63 with TraceHistMax 11,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 28ms.. - TimeoutResultAtElement [Line: 58]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 63 with TraceHistMax 11,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 28ms.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 42 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 845.3s, OverallIterations: 14, TraceHistogramMax: 0, PathProgramHistogramMax: 10, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 22.7s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 479, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 350.0s InterpolantComputationTime, 914 NumberOfCodeBlocks, 914 NumberOfCodeBlocksAsserted, 55 NumberOfCheckSat, 1317 ConstructedInterpolants, 22 QuantifiedInterpolants, 19903 SizeOfPredicates, 101 NumberOfNonLiveVariables, 1106 ConjunctsInSsa, 290 ConjunctsInUnsatCore, 35 InterpolantComputations, 2 PerfectInterpolantSequences, 849/2197 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