/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/dot-product-alt.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-44898dd [2022-02-09 14:59:30,913 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-09 14:59:30,915 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-09 14:59:30,989 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-02-09 14:59:31,008 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-09 14:59:31,008 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-09 14:59:31,009 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-09 14:59:31,010 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-09 14:59:31,010 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-09 14:59:31,011 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-09 14:59:31,012 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-09 14:59:31,013 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-09 14:59:31,014 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-09 14:59:31,017 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-09 14:59:31,021 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-09 14:59:31,023 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-09 14:59:31,030 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-09 14:59:31,039 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-09 14:59:31,039 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-09 14:59:31,040 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-09 14:59:31,041 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-NoLbe.epf [2022-02-09 14:59:31,075 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-09 14:59:31,076 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-09 14:59:31,076 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-09 14:59:31,076 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-09 14:59:31,077 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-09 14:59:31,077 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-09 14:59:31,078 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-09 14:59:31,078 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-09 14:59:31,078 INFO L138 SettingsManager]: * Use SBE=true [2022-02-09 14:59:31,078 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-09 14:59:31,079 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-09 14:59:31,079 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-09 14:59:31,079 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-09 14:59:31,079 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-09 14:59:31,079 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-09 14:59:31,079 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-09 14:59:31,080 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-09 14:59:31,080 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-09 14:59:31,080 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-09 14:59:31,080 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-09 14:59:31,080 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-09 14:59:31,080 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-09 14:59:31,080 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-09 14:59:31,080 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-09 14:59:31,081 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-09 14:59:31,081 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-09 14:59:31,081 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-09 14:59:31,081 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-02-09 14:59:31,081 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-09 14:59:31,081 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-09 14:59:31,081 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-09 14:59:31,081 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-09 14:59:31,082 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-09 14:59:31,082 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-09 14:59:31,082 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-09 14:59:31,082 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2022-02-09 14:59:31,082 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2022-02-09 14:59:31,082 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-09 14:59:31,288 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-09 14:59:31,316 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-09 14:59:31,318 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-09 14:59:31,319 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-02-09 14:59:31,321 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-02-09 14:59:31,322 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/dot-product-alt.wvr.bpl [2022-02-09 14:59:31,322 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/dot-product-alt.wvr.bpl' [2022-02-09 14:59:31,342 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-09 14:59:31,344 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-09 14:59:31,344 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-09 14:59:31,345 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-09 14:59:31,345 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-09 14:59:31,360 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 02:59:31" (1/1) ... [2022-02-09 14:59:31,367 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 02:59:31" (1/1) ... [2022-02-09 14:59:31,371 INFO L137 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-02-09 14:59:31,373 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-09 14:59:31,374 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-09 14:59:31,374 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-09 14:59:31,374 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-09 14:59:31,381 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 02:59:31" (1/1) ... [2022-02-09 14:59:31,381 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 02:59:31" (1/1) ... [2022-02-09 14:59:31,382 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 02:59:31" (1/1) ... [2022-02-09 14:59:31,382 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 02:59:31" (1/1) ... [2022-02-09 14:59:31,385 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 02:59:31" (1/1) ... [2022-02-09 14:59:31,387 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 02:59:31" (1/1) ... [2022-02-09 14:59:31,388 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 02:59:31" (1/1) ... [2022-02-09 14:59:31,389 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-09 14:59:31,390 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-09 14:59:31,390 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-09 14:59:31,390 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-09 14:59:31,393 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 02:59:31" (1/1) ... [2022-02-09 14:59:31,399 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-09 14:59:31,410 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 14:59:31,424 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 14:59:31,447 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 14:59:31,461 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-02-09 14:59:31,462 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-02-09 14:59:31,462 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-02-09 14:59:31,462 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-02-09 14:59:31,462 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-02-09 14:59:31,462 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-02-09 14:59:31,462 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-02-09 14:59:31,462 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-09 14:59:31,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-09 14:59:31,463 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-02-09 14:59:31,463 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-02-09 14:59:31,463 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-02-09 14:59:31,464 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 14:59:31,506 INFO L234 CfgBuilder]: Building ICFG [2022-02-09 14:59:31,507 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-09 14:59:31,590 INFO L275 CfgBuilder]: Performing block encoding [2022-02-09 14:59:31,596 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-09 14:59:31,596 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-09 14:59:31,598 INFO L202 PluginConnector]: Adding new model dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.02 02:59:31 BoogieIcfgContainer [2022-02-09 14:59:31,604 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-09 14:59:31,606 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-09 14:59:31,606 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-09 14:59:31,626 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-09 14:59:31,626 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 02:59:31" (1/2) ... [2022-02-09 14:59:31,627 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dcc9c87 and model type dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.02 02:59:31, skipping insertion in model container [2022-02-09 14:59:31,627 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.02 02:59:31" (2/2) ... [2022-02-09 14:59:31,628 INFO L111 eAbstractionObserver]: Analyzing ICFG dot-product-alt.wvr.bpl [2022-02-09 14:59:31,633 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-09 14:59:31,633 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-09 14:59:31,633 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-09 14:59:31,633 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-09 14:59:31,681 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-02-09 14:59:31,762 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-09 14:59:31,763 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 14:59:31,764 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 14:59:31,765 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 14:59:31,792 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-02-09 14:59:31,799 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 14:59:31,799 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-02-09 14:59:31,937 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 14:59:31,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 14:59:31,941 INFO L85 PathProgramCache]: Analyzing trace with hash -1733384714, now seen corresponding path program 1 times [2022-02-09 14:59:31,947 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 14:59:31,948 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079134023] [2022-02-09 14:59:31,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 14:59:31,957 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 14:59:32,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 14:59:32,073 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 14:59:32,073 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 14:59:32,074 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079134023] [2022-02-09 14:59:32,074 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1079134023] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 14:59:32,074 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 14:59:32,075 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-09 14:59:32,076 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011495290] [2022-02-09 14:59:32,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 14:59:32,081 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-09 14:59:32,082 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 14:59:32,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-09 14:59:32,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-09 14:59:32,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 14:59:32,110 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 14:59:32,111 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 14:59:32,111 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 14:59:32,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 14:59:32,166 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-09 14:59:32,167 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 14:59:32,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 14:59:32,168 INFO L85 PathProgramCache]: Analyzing trace with hash -1895882131, now seen corresponding path program 1 times [2022-02-09 14:59:32,168 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 14:59:32,168 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038886717] [2022-02-09 14:59:32,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 14:59:32,168 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 14:59:32,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 14:59:32,229 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 14:59:32,230 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 14:59:32,230 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038886717] [2022-02-09 14:59:32,230 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038886717] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 14:59:32,230 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 14:59:32,230 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-09 14:59:32,230 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87900192] [2022-02-09 14:59:32,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 14:59:32,232 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-09 14:59:32,232 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 14:59:32,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-09 14:59:32,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-09 14:59:32,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 14:59:32,233 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 14:59:32,233 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 14:59:32,233 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-09 14:59:32,233 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 14:59:32,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 14:59:32,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-09 14:59:32,287 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-09 14:59:32,288 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 14:59:32,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 14:59:32,288 INFO L85 PathProgramCache]: Analyzing trace with hash -131335212, now seen corresponding path program 1 times [2022-02-09 14:59:32,289 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 14:59:32,289 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576047672] [2022-02-09 14:59:32,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 14:59:32,289 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 14:59:32,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 14:59:32,785 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 14:59:32,785 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 14:59:32,786 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576047672] [2022-02-09 14:59:32,787 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576047672] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 14:59:32,788 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [544948174] [2022-02-09 14:59:32,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 14:59:32,789 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 14:59:32,789 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 14:59:32,795 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 14:59:32,823 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 14:59:32,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 14:59:32,858 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 17 conjunts are in the unsatisfiable core [2022-02-09 14:59:32,863 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 14:59:33,236 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 14:59:33,243 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 23 treesize of output 19 [2022-02-09 14:59:33,254 INFO L353 Elim1Store]: treesize reduction 9, result has 25.0 percent of original size [2022-02-09 14:59:33,255 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 19 treesize of output 10 [2022-02-09 14:59:33,322 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 14:59:33,323 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 14:59:33,512 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-09 14:59:33,513 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 24 treesize of output 29 [2022-02-09 14:59:33,529 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-09 14:59:33,530 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 20 treesize of output 24 [2022-02-09 14:59:33,539 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-09 14:59:33,543 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 20 [2022-02-09 14:59:33,606 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 23 treesize of output 19 [2022-02-09 14:59:33,613 INFO L353 Elim1Store]: treesize reduction 8, result has 33.3 percent of original size [2022-02-09 14:59:33,613 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 19 treesize of output 12 [2022-02-09 14:59:33,728 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 14:59:33,729 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [544948174] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 14:59:33,729 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 14:59:33,729 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 19 [2022-02-09 14:59:33,729 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336153065] [2022-02-09 14:59:33,729 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 14:59:33,731 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-02-09 14:59:33,731 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 14:59:33,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-02-09 14:59:33,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=306, Unknown=0, NotChecked=0, Total=380 [2022-02-09 14:59:33,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 14:59:33,735 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 14:59:33,739 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.6) internal successors, (52), 19 states have internal predecessors, (52), 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 14:59:33,744 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-09 14:59:33,744 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-09 14:59:33,744 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 14:59:34,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 14:59:34,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-09 14:59:34,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-09 14:59:34,037 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 14:59:34,234 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 14:59:34,234 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 14:59:34,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 14:59:34,235 INFO L85 PathProgramCache]: Analyzing trace with hash 238355211, now seen corresponding path program 2 times [2022-02-09 14:59:34,235 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 14:59:34,235 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223657881] [2022-02-09 14:59:34,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 14:59:34,235 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 14:59:34,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 14:59:34,309 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 14:59:34,309 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 14:59:34,309 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223657881] [2022-02-09 14:59:34,310 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223657881] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 14:59:34,310 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [183520796] [2022-02-09 14:59:34,310 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-09 14:59:34,310 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 14:59:34,310 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 14:59:34,311 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 14:59:34,312 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 14:59:34,344 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-09 14:59:34,344 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 14:59:34,345 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 7 conjunts are in the unsatisfiable core [2022-02-09 14:59:34,346 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 14:59:34,508 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 14:59:34,508 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 14:59:34,644 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 14:59:34,644 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [183520796] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 14:59:34,645 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 14:59:34,645 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 15 [2022-02-09 14:59:34,645 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059509254] [2022-02-09 14:59:34,645 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 14:59:34,659 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-02-09 14:59:34,659 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 14:59:34,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-02-09 14:59:34,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2022-02-09 14:59:34,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 14:59:34,661 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 14:59:34,661 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.6) internal successors, (54), 15 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 14:59:34,661 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-09 14:59:34,661 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-09 14:59:34,662 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-02-09 14:59:34,662 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 14:59:35,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 14:59:35,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-09 14:59:35,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-09 14:59:35,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-09 14:59:35,046 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 14:59:35,219 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 14:59:35,219 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 14:59:35,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 14:59:35,220 INFO L85 PathProgramCache]: Analyzing trace with hash -1127045429, now seen corresponding path program 1 times [2022-02-09 14:59:35,220 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 14:59:35,220 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507928167] [2022-02-09 14:59:35,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 14:59:35,221 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 14:59:35,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 14:59:35,394 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-09 14:59:35,394 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 14:59:35,396 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507928167] [2022-02-09 14:59:35,397 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507928167] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 14:59:35,397 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [378172422] [2022-02-09 14:59:35,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 14:59:35,397 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 14:59:35,397 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 14:59:35,412 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 14:59:35,474 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 14:59:35,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 14:59:35,489 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 7 conjunts are in the unsatisfiable core [2022-02-09 14:59:35,490 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 14:59:35,619 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-09 14:59:35,620 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 14:59:35,740 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-09 14:59:35,740 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [378172422] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 14:59:35,740 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 14:59:35,740 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 14 [2022-02-09 14:59:35,741 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529445399] [2022-02-09 14:59:35,741 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 14:59:35,742 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-09 14:59:35,742 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 14:59:35,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-09 14:59:35,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=117, Unknown=0, NotChecked=0, Total=182 [2022-02-09 14:59:35,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 14:59:35,743 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 14:59:35,744 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.071428571428571) internal successors, (57), 14 states have internal predecessors, (57), 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 14:59:35,744 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-09 14:59:35,744 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-09 14:59:35,744 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-02-09 14:59:35,744 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-02-09 14:59:35,744 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 14:59:36,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 14:59:36,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-09 14:59:36,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-09 14:59:36,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-09 14:59:36,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-09 14:59:36,029 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 14:59:36,202 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 14:59:36,203 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 14:59:36,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 14:59:36,203 INFO L85 PathProgramCache]: Analyzing trace with hash -557265548, now seen corresponding path program 2 times [2022-02-09 14:59:36,204 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 14:59:36,204 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084583255] [2022-02-09 14:59:36,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 14:59:36,204 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 14:59:36,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 14:59:36,975 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 14:59:36,975 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 14:59:36,975 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084583255] [2022-02-09 14:59:36,975 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084583255] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 14:59:36,975 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2100251040] [2022-02-09 14:59:36,976 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-09 14:59:36,976 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 14:59:36,976 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 14:59:36,977 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 14:59:36,977 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 14:59:37,005 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-09 14:59:37,006 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 14:59:37,007 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 32 conjunts are in the unsatisfiable core [2022-02-09 14:59:37,009 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 14:59:41,585 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 14:59:41,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 14:59:41,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 14:59:41,588 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 61 treesize of output 49 [2022-02-09 14:59:41,635 INFO L353 Elim1Store]: treesize reduction 41, result has 55.9 percent of original size [2022-02-09 14:59:41,635 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 49 treesize of output 64 [2022-02-09 14:59:41,642 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 14:59:41,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 14:59:41,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 14:59:41,645 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 63 treesize of output 51 [2022-02-09 14:59:41,714 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 14:59:41,715 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 15:00:03,116 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:00:03,117 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:00:03,168 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-09 15:00:03,168 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 13 case distinctions, treesize of input 135 treesize of output 224 [2022-02-09 15:00:03,284 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-09 15:00:03,285 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 103 treesize of output 269 [2022-02-09 15:00:03,307 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:00:03,312 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:00:03,381 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-09 15:00:03,382 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 2 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 13 case distinctions, treesize of input 246 treesize of output 286 [2022-02-09 15:11:46,097 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 15:11:46,098 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2100251040] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 15:11:46,098 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 15:11:46,098 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 40 [2022-02-09 15:11:46,098 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483866937] [2022-02-09 15:11:46,098 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 15:11:46,099 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2022-02-09 15:11:46,099 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 15:11:46,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2022-02-09 15:11:46,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=244, Invalid=1303, Unknown=13, NotChecked=0, Total=1560 [2022-02-09 15:11:46,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 15:11:46,100 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 15:11:46,100 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 2.025) internal successors, (81), 40 states have internal predecessors, (81), 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 15:11:46,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-09 15:11:46,100 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-09 15:11:46,101 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-02-09 15:11:46,101 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-02-09 15:11:46,101 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-02-09 15:11:46,101 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 15:11:56,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 15:11:56,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-09 15:11:56,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-09 15:11:56,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-09 15:11:56,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-09 15:11:56,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-02-09 15:11:56,410 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 15:11:56,595 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 15:11:56,595 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 15:11:56,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 15:11:56,596 INFO L85 PathProgramCache]: Analyzing trace with hash 44415531, now seen corresponding path program 3 times [2022-02-09 15:11:56,596 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 15:11:56,596 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231397684] [2022-02-09 15:11:56,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 15:11:56,596 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 15:11:56,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 15:11:56,706 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 5 proven. 23 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 15:11:56,707 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 15:11:56,707 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231397684] [2022-02-09 15:11:56,707 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [231397684] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 15:11:56,707 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1390985360] [2022-02-09 15:11:56,707 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-09 15:11:56,707 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 15:11:56,707 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 15:11:56,708 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 15:11:56,709 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 15:11:56,740 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2022-02-09 15:11:56,740 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 15:11:56,741 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 11 conjunts are in the unsatisfiable core [2022-02-09 15:11:56,756 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 15:11:56,975 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 12 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 15:11:56,975 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 15:11:57,178 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 12 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 15:11:57,178 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1390985360] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 15:11:57,178 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 15:11:57,178 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 27 [2022-02-09 15:11:57,178 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464199777] [2022-02-09 15:11:57,178 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 15:11:57,179 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-02-09 15:11:57,179 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 15:11:57,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-02-09 15:11:57,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=571, Unknown=0, NotChecked=0, Total=702 [2022-02-09 15:11:57,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 15:11:57,180 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 15:11:57,180 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 3.3333333333333335) internal successors, (90), 27 states have internal predecessors, (90), 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 15:11:57,180 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-09 15:11:57,180 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-09 15:11:57,180 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-02-09 15:11:57,180 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-02-09 15:11:57,180 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-02-09 15:11:57,181 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2022-02-09 15:11:57,181 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 15:11:57,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 15:11:57,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-09 15:11:57,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-09 15:11:57,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-09 15:11:57,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-09 15:11:57,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-02-09 15:11:57,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-09 15:11:57,923 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-02-09 15:11:58,108 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 15:11:58,108 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 15:11:58,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 15:11:58,108 INFO L85 PathProgramCache]: Analyzing trace with hash -832207381, now seen corresponding path program 4 times [2022-02-09 15:11:58,109 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 15:11:58,109 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292640098] [2022-02-09 15:11:58,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 15:11:58,109 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 15:11:58,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 15:11:58,200 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 22 proven. 22 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-09 15:11:58,200 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 15:11:58,200 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292640098] [2022-02-09 15:11:58,200 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292640098] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 15:11:58,201 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019956874] [2022-02-09 15:11:58,201 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-09 15:11:58,201 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 15:11:58,201 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 15:11:58,202 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 15:11:58,235 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 15:11:58,248 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-09 15:11:58,248 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 15:11:58,249 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 11 conjunts are in the unsatisfiable core [2022-02-09 15:11:58,252 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 15:11:58,438 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 22 proven. 22 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-09 15:11:58,438 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 15:11:58,616 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 22 proven. 22 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-09 15:11:58,616 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2019956874] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 15:11:58,616 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 15:11:58,616 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 22 [2022-02-09 15:11:58,616 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510167401] [2022-02-09 15:11:58,616 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 15:11:58,617 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-02-09 15:11:58,617 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 15:11:58,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-02-09 15:11:58,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=152, Invalid=310, Unknown=0, NotChecked=0, Total=462 [2022-02-09 15:11:58,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 15:11:58,618 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 15:11:58,618 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 3.6818181818181817) internal successors, (81), 22 states have internal predecessors, (81), 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 15:11:58,618 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-09 15:11:58,618 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-09 15:11:58,618 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-02-09 15:11:58,618 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-02-09 15:11:58,618 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-02-09 15:11:58,618 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2022-02-09 15:11:58,618 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2022-02-09 15:11:58,619 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 15:11:58,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 15:11:58,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-09 15:11:58,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-09 15:11:58,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-09 15:11:58,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-09 15:11:58,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-02-09 15:11:58,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-02-09 15:11:58,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-09 15:11:58,871 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 15:11:59,045 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 15:11:59,045 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 15:11:59,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 15:11:59,046 INFO L85 PathProgramCache]: Analyzing trace with hash -1764624620, now seen corresponding path program 5 times [2022-02-09 15:11:59,046 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 15:11:59,046 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959538856] [2022-02-09 15:11:59,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 15:11:59,046 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 15:11:59,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 15:12:00,112 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 3 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 15:12:00,112 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 15:12:00,112 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959538856] [2022-02-09 15:12:00,112 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959538856] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 15:12:00,112 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2007117643] [2022-02-09 15:12:00,113 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-09 15:12:00,113 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 15:12:00,113 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 15:12:00,118 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 15:12:00,118 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 15:12:00,148 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2022-02-09 15:12:00,148 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 15:12:00,149 WARN L261 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 48 conjunts are in the unsatisfiable core [2022-02-09 15:12:00,151 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 15:12:01,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 15:12:01,410 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:12:01,411 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 105 treesize of output 85 [2022-02-09 15:12:01,532 INFO L353 Elim1Store]: treesize reduction 73, result has 69.2 percent of original size [2022-02-09 15:12:01,533 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 85 treesize of output 188 [2022-02-09 15:12:01,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 15:12:01,540 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:12:01,541 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 10 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 223 treesize of output 183 [2022-02-09 15:12:01,803 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 15:12:01,803 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 15:12:03,449 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:12:03,449 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:12:03,450 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:12:03,450 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:12:03,450 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:12:03,451 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:12:03,732 INFO L353 Elim1Store]: treesize reduction 142, result has 66.3 percent of original size [2022-02-09 15:12:03,732 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 6 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 39 case distinctions, treesize of input 123 treesize of output 368 [2022-02-09 15:12:04,150 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-09 15:12:04,150 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 89 treesize of output 817 [2022-02-09 15:12:04,192 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:12:04,193 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:12:04,194 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:12:04,203 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:12:04,203 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:12:04,204 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:12:04,205 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:12:04,209 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:12:04,209 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:12:04,211 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:12:04,213 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:12:04,214 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:12:04,217 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:12:04,219 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:12:04,220 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:12:04,221 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 15:12:04,415 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-09 15:12:04,416 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 16 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 29 case distinctions, treesize of input 802 treesize of output 804 Received shutdown request... [2022-02-09 15:13:24,194 WARN L244 SmtUtils]: Removed 2 from assertion stack [2022-02-09 15:13:24,197 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (3 of 4 remaining) [2022-02-09 15:13:24,210 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 15:13:24,211 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-02-09 15:13:24,213 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-02-09 15:13:24,217 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 15:13:24,397 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 15:13:24,398 WARN L594 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 49 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 20ms.. [2022-02-09 15:13:24,400 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-02-09 15:13:24,400 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-02-09 15:13:24,400 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-02-09 15:13:24,411 INFO L732 BasicCegarLoop]: Path program histogram: [5, 2, 1, 1] [2022-02-09 15:13:24,418 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-09 15:13:24,418 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-09 15:13:24,423 INFO L202 PluginConnector]: Adding new model dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.02 03:13:24 BasicIcfg [2022-02-09 15:13:24,423 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-09 15:13:24,425 INFO L158 Benchmark]: Toolchain (without parser) took 833080.13ms. Allocated memory was 176.2MB in the beginning and 640.7MB in the end (delta: 464.5MB). Free memory was 134.0MB in the beginning and 310.5MB in the end (delta: -176.4MB). Peak memory consumption was 386.8MB. Max. memory is 8.0GB. [2022-02-09 15:13:24,426 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.14ms. Allocated memory is still 176.2MB. Free memory is still 135.2MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-09 15:13:24,426 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.49ms. Allocated memory is still 176.2MB. Free memory was 134.0MB in the beginning and 132.5MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-09 15:13:24,427 INFO L158 Benchmark]: Boogie Preprocessor took 15.12ms. Allocated memory is still 176.2MB. Free memory was 132.5MB in the beginning and 131.5MB in the end (delta: 950.4kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-09 15:13:24,428 INFO L158 Benchmark]: RCFGBuilder took 215.00ms. Allocated memory is still 176.2MB. Free memory was 131.5MB in the beginning and 122.6MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-02-09 15:13:24,429 INFO L158 Benchmark]: TraceAbstraction took 832816.94ms. Allocated memory was 176.2MB in the beginning and 640.7MB in the end (delta: 464.5MB). Free memory was 122.1MB in the beginning and 310.5MB in the end (delta: -188.3MB). Peak memory consumption was 375.3MB. Max. memory is 8.0GB. [2022-02-09 15:13:24,434 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 0.14ms. Allocated memory is still 176.2MB. Free memory is still 135.2MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 28.49ms. Allocated memory is still 176.2MB. Free memory was 134.0MB in the beginning and 132.5MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 15.12ms. Allocated memory is still 176.2MB. Free memory was 132.5MB in the beginning and 131.5MB in the end (delta: 950.4kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 215.00ms. Allocated memory is still 176.2MB. Free memory was 131.5MB in the beginning and 122.6MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * TraceAbstraction took 832816.94ms. Allocated memory was 176.2MB in the beginning and 640.7MB in the end (delta: 464.5MB). Free memory was 122.1MB in the beginning and 310.5MB in the end (delta: -188.3MB). Peak memory consumption was 375.3MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 2243, positive: 1876, positive conditional: 1503, positive unconditional: 373, negative: 367, negative conditional: 367, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1876, positive: 1876, positive conditional: 1503, positive unconditional: 373, 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: 1876, positive: 1876, positive conditional: 1503, positive unconditional: 373, 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: 1876, positive: 1876, positive conditional: 1365, positive unconditional: 511, 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: 1876, positive: 1876, positive conditional: 1290, positive unconditional: 586, 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: 1876, positive: 1876, positive conditional: 1290, positive unconditional: 586, 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: 349, positive: 349, positive conditional: 0, positive unconditional: 349, 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: 349, positive: 346, positive conditional: 0, positive unconditional: 346, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 48, positive: 48, positive conditional: 0, positive unconditional: 48, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1876, positive: 1527, positive conditional: 1290, positive unconditional: 237, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 349, unknown conditional: 0, unknown unconditional: 349] , Statistics on independence cache: Total cache size (in pairs): 349, Positive cache size: 349, Positive conditional cache size: 0, Positive unconditional cache size: 349, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 75, Maximal queried relation: 0, Independence queries for same thread: 367 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.1s, Number of persistent set computation: 24, Number of trivial persistent sets: 12, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 373, positive: 373, positive conditional: 0, positive unconditional: 373, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 2243, positive: 1876, positive conditional: 1503, positive unconditional: 373, negative: 367, negative conditional: 367, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1876, positive: 1876, positive conditional: 1503, positive unconditional: 373, 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: 1876, positive: 1876, positive conditional: 1503, positive unconditional: 373, 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: 1876, positive: 1876, positive conditional: 1365, positive unconditional: 511, 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: 1876, positive: 1876, positive conditional: 1290, positive unconditional: 586, 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: 1876, positive: 1876, positive conditional: 1290, positive unconditional: 586, 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: 349, positive: 349, positive conditional: 0, positive unconditional: 349, 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: 349, positive: 346, positive conditional: 0, positive unconditional: 346, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 3, positive: 3, positive conditional: 0, positive unconditional: 3, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 48, positive: 48, positive conditional: 0, positive unconditional: 48, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1876, positive: 1527, positive conditional: 1290, positive unconditional: 237, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 349, unknown conditional: 0, unknown unconditional: 349] , Statistics on independence cache: Total cache size (in pairs): 349, Positive cache size: 349, Positive conditional cache size: 0, Positive unconditional cache size: 349, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 75, Maximal queried relation: 0, Independence queries for same thread: 367 - 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: 61]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PartialOrderCegarLoop was analyzing trace of length 49 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 20ms.. - TimeoutResultAtElement [Line: 54]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 49 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 20ms.. - TimeoutResultAtElement [Line: 54]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 49 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 20ms.. - TimeoutResultAtElement [Line: 55]: 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 49 with TraceHistMax 5,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 20ms.. - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 7 procedures, 48 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 832.7s, OverallIterations: 9, TraceHistogramMax: 0, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 12.3s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 128, 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, 0.2s SatisfiabilityAnalysisTime, 733.0s InterpolantComputationTime, 447 NumberOfCodeBlocks, 447 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 631 ConstructedInterpolants, 16 QuantifiedInterpolants, 8169 SizeOfPredicates, 61 NumberOfNonLiveVariables, 436 ConjunctsInSsa, 85 ConjunctsInUnsatCore, 20 InterpolantComputations, 2 PerfectInterpolantSequences, 119/331 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