/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/max-fun-alt.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-44898dd [2022-02-09 09:44:44,906 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-09 09:44:44,908 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-09 09:44:44,967 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-02-09 09:44:45,015 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-09 09:44:45,016 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-09 09:44:45,016 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-09 09:44:45,020 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 [2022-02-09 09:44:45,049 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-09 09:44:45,050 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-09 09:44:45,050 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-09 09:44:45,050 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-09 09:44:45,051 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-09 09:44:45,051 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-09 09:44:45,051 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-09 09:44:45,051 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-09 09:44:45,052 INFO L138 SettingsManager]: * Use SBE=true [2022-02-09 09:44:45,052 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-09 09:44:45,052 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-09 09:44:45,053 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-09 09:44:45,053 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-09 09:44:45,053 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-09 09:44:45,053 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-09 09:44:45,053 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-09 09:44:45,053 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-09 09:44:45,053 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-09 09:44:45,053 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-09 09:44:45,053 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-09 09:44:45,054 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-09 09:44:45,054 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-09 09:44:45,054 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-09 09:44:45,054 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-09 09:44:45,055 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-09 09:44:45,055 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-09 09:44:45,055 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-09 09:44:45,055 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-02-09 09:44:45,055 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-09 09:44:45,055 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-09 09:44:45,056 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-09 09:44:45,056 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-09 09:44:45,056 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-09 09:44:45,056 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-09 09:44:45,056 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-09 09:44:45,056 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2022-02-09 09:44:45,057 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-09 09:44:45,262 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-09 09:44:45,283 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-09 09:44:45,285 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-09 09:44:45,286 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-02-09 09:44:45,287 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-02-09 09:44:45,287 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/max-fun-alt.wvr.bpl [2022-02-09 09:44:45,287 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/max-fun-alt.wvr.bpl' [2022-02-09 09:44:45,309 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-09 09:44:45,310 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-09 09:44:45,311 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-09 09:44:45,311 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-09 09:44:45,311 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-09 09:44:45,320 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "max-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 09:44:45" (1/1) ... [2022-02-09 09:44:45,325 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "max-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 09:44:45" (1/1) ... [2022-02-09 09:44:45,329 INFO L137 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-02-09 09:44:45,330 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-09 09:44:45,331 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-09 09:44:45,331 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-09 09:44:45,331 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-09 09:44:45,336 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "max-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 09:44:45" (1/1) ... [2022-02-09 09:44:45,336 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "max-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 09:44:45" (1/1) ... [2022-02-09 09:44:45,337 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "max-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 09:44:45" (1/1) ... [2022-02-09 09:44:45,338 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "max-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 09:44:45" (1/1) ... [2022-02-09 09:44:45,344 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "max-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 09:44:45" (1/1) ... [2022-02-09 09:44:45,348 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "max-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 09:44:45" (1/1) ... [2022-02-09 09:44:45,349 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "max-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 09:44:45" (1/1) ... [2022-02-09 09:44:45,353 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-09 09:44:45,354 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-09 09:44:45,354 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-09 09:44:45,354 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-09 09:44:45,356 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "max-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 09:44:45" (1/1) ... [2022-02-09 09:44:45,361 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-09 09:44:45,369 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 09:44:45,384 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) [2022-02-09 09:44:45,394 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 [2022-02-09 09:44:45,417 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-02-09 09:44:45,418 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-02-09 09:44:45,418 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-02-09 09:44:45,418 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-02-09 09:44:45,418 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-02-09 09:44:45,418 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-02-09 09:44:45,419 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-02-09 09:44:45,419 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-09 09:44:45,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-09 09:44:45,419 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-02-09 09:44:45,420 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-02-09 09:44:45,420 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-02-09 09:44:45,425 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-09 09:44:45,464 INFO L234 CfgBuilder]: Building ICFG [2022-02-09 09:44:45,466 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-09 09:44:45,600 INFO L275 CfgBuilder]: Performing block encoding [2022-02-09 09:44:45,612 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-09 09:44:45,612 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-09 09:44:45,614 INFO L202 PluginConnector]: Adding new model max-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.02 09:44:45 BoogieIcfgContainer [2022-02-09 09:44:45,614 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-09 09:44:45,615 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-09 09:44:45,615 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-09 09:44:45,618 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-09 09:44:45,618 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "max-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 09:44:45" (1/2) ... [2022-02-09 09:44:45,626 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@300f199b and model type max-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.02 09:44:45, skipping insertion in model container [2022-02-09 09:44:45,626 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "max-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.02 09:44:45" (2/2) ... [2022-02-09 09:44:45,627 INFO L111 eAbstractionObserver]: Analyzing ICFG max-fun-alt.wvr.bpl [2022-02-09 09:44:45,643 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-09 09:44:45,644 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-09 09:44:45,644 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-09 09:44:45,644 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-09 09:44:45,690 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-02-09 09:44:45,784 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-09 09:44:45,785 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 09:44:45,797 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) [2022-02-09 09:44:45,815 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 [2022-02-09 09:44:45,832 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-09 09:44:45,842 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 [2022-02-09 09:44:45,843 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-02-09 09:44:45,979 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 09:44:45,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 09:44:45,986 INFO L85 PathProgramCache]: Analyzing trace with hash 1204265674, now seen corresponding path program 1 times [2022-02-09 09:44:46,022 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 09:44:46,022 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054226507] [2022-02-09 09:44:46,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 09:44:46,023 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 09:44:46,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 09:44:46,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 09:44:46,241 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 09:44:46,242 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054226507] [2022-02-09 09:44:46,242 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054226507] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 09:44:46,242 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 09:44:46,242 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-09 09:44:46,244 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825799489] [2022-02-09 09:44:46,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 09:44:46,250 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-09 09:44:46,251 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 09:44:46,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-09 09:44:46,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-09 09:44:46,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 09:44:46,306 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 09:44:46,308 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) [2022-02-09 09:44:46,323 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 09:44:46,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 09:44:46,417 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-09 09:44:46,417 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 09:44:46,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 09:44:46,418 INFO L85 PathProgramCache]: Analyzing trace with hash 2132727720, now seen corresponding path program 1 times [2022-02-09 09:44:46,419 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 09:44:46,419 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526621765] [2022-02-09 09:44:46,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 09:44:46,419 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 09:44:46,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 09:44:46,519 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-09 09:44:46,520 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 09:44:46,520 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526621765] [2022-02-09 09:44:46,520 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526621765] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 09:44:46,520 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 09:44:46,520 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-09 09:44:46,521 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381557315] [2022-02-09 09:44:46,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 09:44:46,522 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-09 09:44:46,522 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 09:44:46,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-09 09:44:46,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-09 09:44:46,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 09:44:46,523 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 09:44:46,523 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) [2022-02-09 09:44:46,523 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-09 09:44:46,523 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 09:44:46,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 09:44:46,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-09 09:44:46,646 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-09 09:44:46,647 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 09:44:46,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 09:44:46,648 INFO L85 PathProgramCache]: Analyzing trace with hash 1289378822, now seen corresponding path program 1 times [2022-02-09 09:44:46,648 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 09:44:46,648 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765493948] [2022-02-09 09:44:46,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 09:44:46,649 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 09:44:46,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 09:44:46,997 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 09:44:46,997 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 09:44:46,998 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765493948] [2022-02-09 09:44:46,999 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765493948] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 09:44:46,999 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [390395336] [2022-02-09 09:44:46,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 09:44:47,000 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 09:44:47,000 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 09:44:47,004 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) [2022-02-09 09:44:47,006 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-09 09:44:47,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 09:44:47,045 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 17 conjunts are in the unsatisfiable core [2022-02-09 09:44:47,049 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 09:44:47,465 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 09:44:47,473 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 45 treesize of output 33 [2022-02-09 09:44:47,571 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 09:44:47,571 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 09:44:47,753 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-09 09:44:47,754 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 47 treesize of output 43 [2022-02-09 09:44:47,969 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 09:44:47,969 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [390395336] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 09:44:47,970 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 09:44:47,970 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2022-02-09 09:44:47,970 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510388334] [2022-02-09 09:44:47,970 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 09:44:47,972 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-09 09:44:47,972 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 09:44:47,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-09 09:44:47,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2022-02-09 09:44:47,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 09:44:47,975 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 09:44:47,978 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.0) internal successors, (54), 17 states have internal predecessors, (54), 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) [2022-02-09 09:44:47,978 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-09 09:44:47,978 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-09 09:44:47,978 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 09:44:48,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 09:44:48,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-09 09:44:48,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-09 09:44:48,243 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-02-09 09:44:48,439 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 [2022-02-09 09:44:48,440 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 09:44:48,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 09:44:48,441 INFO L85 PathProgramCache]: Analyzing trace with hash -374345244, now seen corresponding path program 2 times [2022-02-09 09:44:48,441 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 09:44:48,441 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266870424] [2022-02-09 09:44:48,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 09:44:48,441 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 09:44:48,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 09:44:48,525 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 09:44:48,526 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 09:44:48,526 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266870424] [2022-02-09 09:44:48,526 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266870424] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 09:44:48,526 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1450165037] [2022-02-09 09:44:48,526 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-09 09:44:48,527 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 09:44:48,527 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 09:44:48,528 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) [2022-02-09 09:44:48,555 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-09 09:44:48,560 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-09 09:44:48,560 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 09:44:48,561 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 7 conjunts are in the unsatisfiable core [2022-02-09 09:44:48,562 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 09:44:48,677 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 09:44:48,677 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 09:44:48,788 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 09:44:48,788 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1450165037] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 09:44:48,788 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 09:44:48,789 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 15 [2022-02-09 09:44:48,789 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485912545] [2022-02-09 09:44:48,789 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 09:44:48,789 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-02-09 09:44:48,789 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 09:44:48,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-02-09 09:44:48,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2022-02-09 09:44:48,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 09:44:48,790 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 09:44:48,790 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) [2022-02-09 09:44:48,791 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-09 09:44:48,791 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-09 09:44:48,791 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-09 09:44:48,791 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 09:44:49,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 09:44:49,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-09 09:44:49,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-09 09:44:49,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-09 09:44:49,086 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-02-09 09:44:49,275 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 [2022-02-09 09:44:49,275 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 09:44:49,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 09:44:49,276 INFO L85 PathProgramCache]: Analyzing trace with hash 359763488, now seen corresponding path program 1 times [2022-02-09 09:44:49,276 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 09:44:49,276 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493158833] [2022-02-09 09:44:49,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 09:44:49,276 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 09:44:49,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 09:44:49,377 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-09 09:44:49,377 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 09:44:49,378 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493158833] [2022-02-09 09:44:49,378 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493158833] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 09:44:49,378 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [499045662] [2022-02-09 09:44:49,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 09:44:49,378 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 09:44:49,378 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 09:44:49,380 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) [2022-02-09 09:44:49,412 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-09 09:44:49,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 09:44:49,419 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 7 conjunts are in the unsatisfiable core [2022-02-09 09:44:49,422 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 09:44:49,519 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-09 09:44:49,519 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 09:44:49,650 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-09 09:44:49,650 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [499045662] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 09:44:49,650 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 09:44:49,650 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 14 [2022-02-09 09:44:49,650 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687219085] [2022-02-09 09:44:49,651 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 09:44:49,652 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-09 09:44:49,652 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 09:44:49,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-09 09:44:49,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=117, Unknown=0, NotChecked=0, Total=182 [2022-02-09 09:44:49,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 09:44:49,656 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 09:44:49,656 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) [2022-02-09 09:44:49,656 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-09 09:44:49,657 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-09 09:44:49,657 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-09 09:44:49,657 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-02-09 09:44:49,657 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 09:44:49,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 09:44:49,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-09 09:44:49,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-09 09:44:49,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-09 09:44:49,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-09 09:44:49,799 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-02-09 09:44:49,989 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 [2022-02-09 09:44:49,989 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 09:44:49,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 09:44:49,990 INFO L85 PathProgramCache]: Analyzing trace with hash -559233666, now seen corresponding path program 2 times [2022-02-09 09:44:49,990 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 09:44:49,990 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029117777] [2022-02-09 09:44:49,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 09:44:49,990 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 09:44:50,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 09:44:50,820 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 09:44:50,820 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 09:44:50,820 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029117777] [2022-02-09 09:44:50,820 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029117777] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 09:44:50,820 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1705985742] [2022-02-09 09:44:50,820 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-09 09:44:50,821 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 09:44:50,821 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 09:44:50,824 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) [2022-02-09 09:44:50,829 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-02-09 09:44:50,860 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-09 09:44:50,860 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 09:44:50,861 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 32 conjunts are in the unsatisfiable core [2022-02-09 09:44:50,863 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 09:44:52,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 09:44:52,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 09:44:52,820 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 09:44:52,822 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 239 treesize of output 153 [2022-02-09 09:44:53,254 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 09:44:53,255 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 09:44:56,272 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 09:44:56,375 INFO L353 Elim1Store]: treesize reduction 38, result has 73.0 percent of original size [2022-02-09 09:44:56,375 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 887 treesize of output 543 [2022-02-09 09:45:18,501 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 09:45:18,501 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1705985742] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 09:45:18,501 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 09:45:18,501 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 12] total 31 [2022-02-09 09:45:18,502 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878394378] [2022-02-09 09:45:18,502 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 09:45:18,502 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-02-09 09:45:18,502 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 09:45:18,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-02-09 09:45:18,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=828, Unknown=0, NotChecked=0, Total=930 [2022-02-09 09:45:18,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 09:45:18,506 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 09:45:18,506 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 2.4516129032258065) internal successors, (76), 31 states have internal predecessors, (76), 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) [2022-02-09 09:45:18,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-09 09:45:18,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-09 09:45:18,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-09 09:45:18,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-02-09 09:45:18,506 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-02-09 09:45:18,507 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 09:45:21,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 09:45:21,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-09 09:45:21,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-09 09:45:21,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-09 09:45:21,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-09 09:45:21,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-09 09:45:21,465 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-02-09 09:45:21,650 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 [2022-02-09 09:45:21,650 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 09:45:21,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 09:45:21,650 INFO L85 PathProgramCache]: Analyzing trace with hash -1978366790, now seen corresponding path program 3 times [2022-02-09 09:45:21,651 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 09:45:21,651 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290840457] [2022-02-09 09:45:21,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 09:45:21,651 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 09:45:21,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 09:45:22,860 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 09:45:22,861 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 09:45:22,861 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290840457] [2022-02-09 09:45:22,861 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290840457] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 09:45:22,861 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1559088767] [2022-02-09 09:45:22,861 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-09 09:45:22,861 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 09:45:22,861 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 09:45:22,862 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) [2022-02-09 09:45:22,863 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-02-09 09:45:22,898 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2022-02-09 09:45:22,899 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 09:45:22,899 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 41 conjunts are in the unsatisfiable core [2022-02-09 09:45:22,901 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 09:45:31,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 09:45:31,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 09:45:31,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 09:45:31,967 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-09 09:45:31,967 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 4 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 571 treesize of output 411 [2022-02-09 09:45:57,781 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 09:45:57,781 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 09:46:06,543 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 09:46:06,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 09:46:06,547 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 09:46:06,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 09:46:06,648 INFO L353 Elim1Store]: treesize reduction 32, result has 77.3 percent of original size [2022-02-09 09:46:06,649 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 1 disjoint index pairs (out of 28 index pairs), introduced 6 new quantified variables, introduced 22 case distinctions, treesize of input 1411 treesize of output 765 [2022-02-09 09:46:42,002 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 09:46:42,002 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1559088767] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 09:46:42,002 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 09:46:42,003 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 38 [2022-02-09 09:46:42,003 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042861811] [2022-02-09 09:46:42,003 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 09:46:42,003 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-02-09 09:46:42,003 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 09:46:42,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-02-09 09:46:42,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=1283, Unknown=0, NotChecked=0, Total=1406 [2022-02-09 09:46:42,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 09:46:42,004 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 09:46:42,005 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 2.3421052631578947) internal successors, (89), 38 states have internal predecessors, (89), 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) [2022-02-09 09:46:42,005 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-09 09:46:42,005 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-09 09:46:42,005 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-09 09:46:42,005 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-02-09 09:46:42,005 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-02-09 09:46:42,005 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-09 09:46:42,005 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 09:46:52,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 09:46:52,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-09 09:46:52,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-09 09:46:52,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-09 09:46:52,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-09 09:46:52,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-09 09:46:52,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-02-09 09:46:52,338 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-02-09 09:46:52,522 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 [2022-02-09 09:46:52,522 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 09:46:52,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 09:46:52,523 INFO L85 PathProgramCache]: Analyzing trace with hash -1479393896, now seen corresponding path program 4 times [2022-02-09 09:46:52,523 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 09:46:52,523 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969919008] [2022-02-09 09:46:52,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 09:46:52,523 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 09:46:52,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 09:46:52,624 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 9 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 09:46:52,624 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 09:46:52,624 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969919008] [2022-02-09 09:46:52,624 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969919008] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 09:46:52,624 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1736785639] [2022-02-09 09:46:52,624 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-09 09:46:52,624 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 09:46:52,625 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 09:46:52,626 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) [2022-02-09 09:46:52,627 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-02-09 09:46:52,660 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-09 09:46:52,660 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 09:46:52,660 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 13 conjunts are in the unsatisfiable core [2022-02-09 09:46:52,662 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 09:46:52,857 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 16 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 09:46:52,858 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 09:46:53,055 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 16 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 09:46:53,056 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1736785639] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 09:46:53,056 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 09:46:53,056 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 31 [2022-02-09 09:46:53,056 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812131588] [2022-02-09 09:46:53,056 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 09:46:53,057 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-02-09 09:46:53,057 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 09:46:53,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-02-09 09:46:53,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=167, Invalid=763, Unknown=0, NotChecked=0, Total=930 [2022-02-09 09:46:53,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 09:46:53,058 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 09:46:53,058 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 2.5483870967741935) internal successors, (79), 31 states have internal predecessors, (79), 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) [2022-02-09 09:46:53,058 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-09 09:46:53,058 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-09 09:46:53,058 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-09 09:46:53,058 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-02-09 09:46:53,058 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-02-09 09:46:53,059 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-09 09:46:53,059 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2022-02-09 09:46:53,059 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 09:46:53,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 09:46:53,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-09 09:46:53,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-09 09:46:53,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-09 09:46:53,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-09 09:46:53,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-09 09:46:53,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-02-09 09:46:53,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-02-09 09:46:53,741 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-02-09 09:46:53,914 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 [2022-02-09 09:46:53,915 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 09:46:53,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 09:46:53,915 INFO L85 PathProgramCache]: Analyzing trace with hash 843682226, now seen corresponding path program 5 times [2022-02-09 09:46:53,915 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 09:46:53,915 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665558451] [2022-02-09 09:46:53,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 09:46:53,915 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 09:46:53,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 09:46:54,060 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 20 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 09:46:54,060 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 09:46:54,060 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665558451] [2022-02-09 09:46:54,060 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665558451] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 09:46:54,060 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1646706848] [2022-02-09 09:46:54,060 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-09 09:46:54,060 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 09:46:54,061 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 09:46:54,062 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) [2022-02-09 09:46:54,063 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-02-09 09:46:54,099 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2022-02-09 09:46:54,100 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 09:46:54,100 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 15 conjunts are in the unsatisfiable core [2022-02-09 09:46:54,102 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 09:46:54,375 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 20 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 09:46:54,375 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 09:46:54,679 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 29 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 09:46:54,679 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1646706848] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 09:46:54,679 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 09:46:54,679 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 41 [2022-02-09 09:46:54,679 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349010787] [2022-02-09 09:46:54,680 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 09:46:54,680 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2022-02-09 09:46:54,680 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 09:46:54,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2022-02-09 09:46:54,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=312, Invalid=1328, Unknown=0, NotChecked=0, Total=1640 [2022-02-09 09:46:54,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 09:46:54,681 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 09:46:54,682 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 2.4390243902439024) internal successors, (100), 41 states have internal predecessors, (100), 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) [2022-02-09 09:46:54,682 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-09 09:46:54,682 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-09 09:46:54,682 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-09 09:46:54,682 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-02-09 09:46:54,682 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-02-09 09:46:54,690 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-09 09:46:54,690 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2022-02-09 09:46:54,690 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2022-02-09 09:46:54,690 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 09:46:55,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 09:46:55,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-09 09:46:55,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-09 09:46:55,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-09 09:46:55,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-09 09:46:55,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-09 09:46:55,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-02-09 09:46:55,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-02-09 09:46:55,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-02-09 09:46:55,126 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-02-09 09:46:55,310 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 [2022-02-09 09:46:55,311 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 09:46:55,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 09:46:55,311 INFO L85 PathProgramCache]: Analyzing trace with hash 1517438958, now seen corresponding path program 6 times [2022-02-09 09:46:55,311 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 09:46:55,311 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892041320] [2022-02-09 09:46:55,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 09:46:55,311 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 09:46:55,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 09:47:17,349 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 09:47:17,350 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 09:47:17,350 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892041320] [2022-02-09 09:47:17,350 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892041320] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 09:47:17,350 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1087681826] [2022-02-09 09:47:17,350 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-02-09 09:47:17,350 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 09:47:17,350 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 09:47:17,351 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) [2022-02-09 09:47:17,352 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-02-09 09:47:17,423 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2022-02-09 09:47:17,423 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 09:47:17,424 WARN L261 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 70 conjunts are in the unsatisfiable core [2022-02-09 09:47:17,426 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 09:48:17,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 09:48:17,687 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 09:48:17,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 09:48:17,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 09:48:17,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 09:48:17,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 09:48:17,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 09:48:17,691 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 09:48:17,693 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 21 disjoint index pairs (out of 36 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 4539 treesize of output 2493 [2022-02-09 09:48:26,316 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 09:48:26,316 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 09:58:05,272 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 09:58:05,273 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 09:58:05,275 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 09:58:05,275 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 09:58:05,276 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 09:58:05,276 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 09:58:05,277 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 09:58:05,277 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 09:58:05,278 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 09:58:05,279 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 09:58:05,280 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 09:58:05,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 09:58:05,282 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 09:58:05,282 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 09:58:05,283 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 09:58:05,283 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 09:58:05,285 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 09:58:05,285 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 09:58:05,287 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 09:58:05,287 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 09:58:05,288 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 09:58:05,290 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 09:58:05,290 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 09:58:05,292 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 09:58:05,294 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 09:58:05,296 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 09:58:05,296 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 09:58:05,298 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 09:58:05,300 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 09:58:05,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 09:58:05,304 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 09:58:05,306 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 09:58:05,307 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 09:58:05,307 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 09:58:05,308 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 09:58:05,309 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 09:58:05,311 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 09:58:05,659 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-09 09:58:05,660 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 14 select indices, 14 select index equivalence classes, 31 disjoint index pairs (out of 91 index pairs), introduced 12 new quantified variables, introduced 45 case distinctions, treesize of input 75807 treesize of output 29563 Received shutdown request... [2022-02-09 09:58:35,568 WARN L244 SmtUtils]: Removed 2 from assertion stack [2022-02-09 09:58:35,570 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (3 of 4 remaining) [2022-02-09 09:58:35,578 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 [2022-02-09 09:58:35,578 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 [2022-02-09 09:58:35,578 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-02-09 09:58:35,586 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-02-09 09:58:35,770 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 [2022-02-09 09:58:35,771 WARN L594 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 47 with TraceHistMax 7,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 4 for 34ms.. [2022-02-09 09:58:35,772 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-02-09 09:58:35,772 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-02-09 09:58:35,772 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-02-09 09:58:35,776 INFO L732 BasicCegarLoop]: Path program histogram: [6, 2, 1, 1] [2022-02-09 09:58:35,779 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-09 09:58:35,779 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-09 09:58:35,781 INFO L202 PluginConnector]: Adding new model max-fun-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.02 09:58:35 BasicIcfg [2022-02-09 09:58:35,781 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-09 09:58:35,782 INFO L158 Benchmark]: Toolchain (without parser) took 830471.09ms. Allocated memory was 176.2MB in the beginning and 1.2GB in the end (delta: 1.0GB). Free memory was 140.1MB in the beginning and 504.9MB in the end (delta: -364.9MB). Peak memory consumption was 747.2MB. Max. memory is 8.0GB. [2022-02-09 09:58:35,782 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.11ms. Allocated memory is still 176.2MB. Free memory is still 141.2MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-09 09:58:35,783 INFO L158 Benchmark]: Boogie Procedure Inliner took 19.41ms. Allocated memory is still 176.2MB. Free memory was 140.1MB in the beginning and 138.6MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-09 09:58:35,783 INFO L158 Benchmark]: Boogie Preprocessor took 22.43ms. Allocated memory is still 176.2MB. Free memory was 138.6MB in the beginning and 137.6MB in the end (delta: 961.5kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-09 09:58:35,783 INFO L158 Benchmark]: RCFGBuilder took 259.77ms. Allocated memory is still 176.2MB. Free memory was 137.5MB in the beginning and 128.1MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-02-09 09:58:35,783 INFO L158 Benchmark]: TraceAbstraction took 830165.60ms. Allocated memory was 176.2MB in the beginning and 1.2GB in the end (delta: 1.0GB). Free memory was 127.6MB in the beginning and 504.9MB in the end (delta: -377.3MB). Peak memory consumption was 734.6MB. Max. memory is 8.0GB. [2022-02-09 09:58:35,784 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 0.11ms. Allocated memory is still 176.2MB. Free memory is still 141.2MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 19.41ms. Allocated memory is still 176.2MB. Free memory was 140.1MB in the beginning and 138.6MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 22.43ms. Allocated memory is still 176.2MB. Free memory was 138.6MB in the beginning and 137.6MB in the end (delta: 961.5kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 259.77ms. Allocated memory is still 176.2MB. Free memory was 137.5MB in the beginning and 128.1MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 830165.60ms. Allocated memory was 176.2MB in the beginning and 1.2GB in the end (delta: 1.0GB). Free memory was 127.6MB in the beginning and 504.9MB in the end (delta: -377.3MB). Peak memory consumption was 734.6MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1904, positive: 1529, positive conditional: 1529, positive unconditional: 0, negative: 375, negative conditional: 375, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1529, positive: 1529, positive conditional: 1529, 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: 1529, positive: 1529, positive conditional: 1529, 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: 1529, positive: 1529, positive conditional: 1356, 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: 1529, positive: 1529, positive conditional: 1306, positive unconditional: 223, 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: 1529, positive: 1529, positive conditional: 1306, positive unconditional: 223, 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: 58, positive: 58, positive conditional: 0, positive unconditional: 58, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1529, positive: 1478, positive conditional: 1306, positive unconditional: 172, 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: 50, Maximal queried relation: 0, Independence queries for same thread: 375 - 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 47 with TraceHistMax 7,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 4 for 34ms.. - 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 47 with TraceHistMax 7,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 4 for 34ms.. - 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 47 with TraceHistMax 7,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 4 for 34ms.. - 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 47 with TraceHistMax 7,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 4 for 34ms.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 42 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 830.0s, OverallIterations: 10, TraceHistogramMax: 0, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 15.3s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 192, 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: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 111.9s InterpolantComputationTime, 470 NumberOfCodeBlocks, 470 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 663 ConstructedInterpolants, 16 QuantifiedInterpolants, 28293 SizeOfPredicates, 64 NumberOfNonLiveVariables, 547 ConjunctsInSsa, 132 ConjunctsInUnsatCore, 23 InterpolantComputations, 2 PerfectInterpolantSequences, 128/424 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