/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/parallel/misc-4.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-44898dd [2022-02-16 01:13:04,006 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-16 01:13:04,007 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-16 01:13:04,039 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-02-16 01:13:04,055 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-16 01:13:04,056 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-16 01:13:04,057 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-16 01:13:04,057 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-16 01:13:04,058 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-16 01:13:04,058 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-16 01:13:04,060 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-16 01:13:04,061 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-16 01:13:04,061 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-16 01:13:04,062 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-16 01:13:04,063 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-16 01:13:04,064 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-16 01:13:04,066 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-16 01:13:04,070 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-16 01:13:04,071 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-16 01:13:04,071 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-16 01:13:04,072 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 [2022-02-16 01:13:04,092 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-16 01:13:04,093 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-16 01:13:04,093 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-16 01:13:04,093 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-16 01:13:04,093 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-16 01:13:04,093 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-16 01:13:04,094 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-16 01:13:04,094 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-16 01:13:04,094 INFO L138 SettingsManager]: * Use SBE=true [2022-02-16 01:13:04,094 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-16 01:13:04,094 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-16 01:13:04,094 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-16 01:13:04,094 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-16 01:13:04,094 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-16 01:13:04,095 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-16 01:13:04,095 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-16 01:13:04,095 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-16 01:13:04,095 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-16 01:13:04,095 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-16 01:13:04,095 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-16 01:13:04,095 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-16 01:13:04,095 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-16 01:13:04,095 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-16 01:13:04,095 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-16 01:13:04,096 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-16 01:13:04,096 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-16 01:13:04,096 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-16 01:13:04,096 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-02-16 01:13:04,096 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-16 01:13:04,096 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-16 01:13:04,096 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-16 01:13:04,096 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-16 01:13:04,097 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-16 01:13:04,097 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-16 01:13:04,097 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-16 01:13:04,097 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2022-02-16 01:13:04,097 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2022-02-16 01:13:04,097 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-16 01:13:04,264 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-16 01:13:04,287 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-16 01:13:04,288 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-16 01:13:04,289 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-02-16 01:13:04,290 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-02-16 01:13:04,291 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/misc-4.wvr.bpl [2022-02-16 01:13:04,291 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/misc-4.wvr.bpl' [2022-02-16 01:13:04,310 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-16 01:13:04,310 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-16 01:13:04,311 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-16 01:13:04,311 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-16 01:13:04,311 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-16 01:13:04,326 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "misc-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 01:13:04" (1/1) ... [2022-02-16 01:13:04,330 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "misc-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 01:13:04" (1/1) ... [2022-02-16 01:13:04,345 INFO L137 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-02-16 01:13:04,346 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-16 01:13:04,347 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-16 01:13:04,348 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-16 01:13:04,348 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-16 01:13:04,353 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "misc-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 01:13:04" (1/1) ... [2022-02-16 01:13:04,353 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "misc-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 01:13:04" (1/1) ... [2022-02-16 01:13:04,354 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "misc-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 01:13:04" (1/1) ... [2022-02-16 01:13:04,354 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "misc-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 01:13:04" (1/1) ... [2022-02-16 01:13:04,356 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "misc-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 01:13:04" (1/1) ... [2022-02-16 01:13:04,358 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "misc-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 01:13:04" (1/1) ... [2022-02-16 01:13:04,359 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "misc-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 01:13:04" (1/1) ... [2022-02-16 01:13:04,359 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-16 01:13:04,360 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-16 01:13:04,360 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-16 01:13:04,360 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-16 01:13:04,361 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "misc-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 01:13:04" (1/1) ... [2022-02-16 01:13:04,367 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-16 01:13:04,376 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 01:13:04,397 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) [2022-02-16 01:13:04,415 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 [2022-02-16 01:13:04,429 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-02-16 01:13:04,429 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-02-16 01:13:04,430 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-02-16 01:13:04,430 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-02-16 01:13:04,430 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-02-16 01:13:04,430 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-02-16 01:13:04,430 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-02-16 01:13:04,430 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-16 01:13:04,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-16 01:13:04,430 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-02-16 01:13:04,430 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-02-16 01:13:04,431 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-02-16 01:13:04,431 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-16 01:13:04,467 INFO L234 CfgBuilder]: Building ICFG [2022-02-16 01:13:04,470 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-16 01:13:04,545 INFO L275 CfgBuilder]: Performing block encoding [2022-02-16 01:13:04,549 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-16 01:13:04,550 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-16 01:13:04,551 INFO L202 PluginConnector]: Adding new model misc-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 01:13:04 BoogieIcfgContainer [2022-02-16 01:13:04,551 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-16 01:13:04,552 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-16 01:13:04,552 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-16 01:13:04,554 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-16 01:13:04,555 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "misc-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 01:13:04" (1/2) ... [2022-02-16 01:13:04,555 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28a29c48 and model type misc-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.02 01:13:04, skipping insertion in model container [2022-02-16 01:13:04,555 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "misc-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 01:13:04" (2/2) ... [2022-02-16 01:13:04,556 INFO L111 eAbstractionObserver]: Analyzing ICFG misc-4.wvr.bpl [2022-02-16 01:13:04,559 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-16 01:13:04,560 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-16 01:13:04,560 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-16 01:13:04,560 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-16 01:13:04,584 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-02-16 01:13:04,621 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-16 01:13:04,621 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 01:13:04,622 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) [2022-02-16 01:13:04,655 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 [2022-02-16 01:13:04,668 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-02-16 01:13:04,673 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 [2022-02-16 01:13:04,673 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-02-16 01:13:04,921 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-16 01:13:04,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 01:13:04,925 INFO L85 PathProgramCache]: Analyzing trace with hash -1954509892, now seen corresponding path program 1 times [2022-02-16 01:13:04,931 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 01:13:04,932 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186987975] [2022-02-16 01:13:04,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 01:13:04,932 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 01:13:04,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 01:13:05,028 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-16 01:13:05,029 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 01:13:05,029 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186987975] [2022-02-16 01:13:05,029 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [186987975] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-16 01:13:05,029 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-16 01:13:05,030 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-16 01:13:05,031 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192467357] [2022-02-16 01:13:05,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-16 01:13:05,034 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-16 01:13:05,034 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 01:13:05,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-16 01:13:05,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-16 01:13:05,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 01:13:05,058 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 01:13:05,060 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 2 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-16 01:13:05,060 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 01:13:05,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-16 01:13:05,154 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-16 01:13:05,154 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-16 01:13:05,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 01:13:05,154 INFO L85 PathProgramCache]: Analyzing trace with hash 1151963222, now seen corresponding path program 2 times [2022-02-16 01:13:05,154 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 01:13:05,155 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448896989] [2022-02-16 01:13:05,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 01:13:05,155 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 01:13:05,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 01:13:05,192 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 01:13:05,192 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 01:13:05,193 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448896989] [2022-02-16 01:13:05,193 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448896989] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-16 01:13:05,193 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [106328100] [2022-02-16 01:13:05,193 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-16 01:13:05,193 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 01:13:05,193 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 01:13:05,195 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) [2022-02-16 01:13:05,196 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-16 01:13:05,230 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-16 01:13:05,230 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-16 01:13:05,233 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 4 conjunts are in the unsatisfiable core [2022-02-16 01:13:05,236 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-16 01:13:05,325 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 01:13:05,325 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-16 01:13:05,393 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 01:13:05,393 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [106328100] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-16 01:13:05,393 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-16 01:13:05,393 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 5 [2022-02-16 01:13:05,394 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542943214] [2022-02-16 01:13:05,394 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-16 01:13:05,395 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-16 01:13:05,395 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 01:13:05,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-16 01:13:05,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-02-16 01:13:05,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 01:13:05,396 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 01:13:05,396 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 5 states have internal predecessors, (33), 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) [2022-02-16 01:13:05,396 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-16 01:13:05,396 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 01:13:05,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-16 01:13:05,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-16 01:13:05,612 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-02-16 01:13:05,798 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2022-02-16 01:13:05,799 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-16 01:13:05,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 01:13:05,799 INFO L85 PathProgramCache]: Analyzing trace with hash 500572310, now seen corresponding path program 1 times [2022-02-16 01:13:05,799 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 01:13:05,799 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978698235] [2022-02-16 01:13:05,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 01:13:05,800 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 01:13:05,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 01:13:05,827 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-16 01:13:05,828 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 01:13:05,828 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978698235] [2022-02-16 01:13:05,828 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978698235] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-16 01:13:05,828 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-16 01:13:05,828 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-16 01:13:05,828 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566790449] [2022-02-16 01:13:05,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-16 01:13:05,829 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-16 01:13:05,829 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 01:13:05,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-16 01:13:05,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-16 01:13:05,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 01:13:05,830 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 01:13:05,830 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 2 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-16 01:13:05,830 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-16 01:13:05,830 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-02-16 01:13:05,830 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 01:13:05,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-16 01:13:05,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-16 01:13:05,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-16 01:13:05,863 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-16 01:13:05,864 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-16 01:13:05,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 01:13:05,864 INFO L85 PathProgramCache]: Analyzing trace with hash 517609918, now seen corresponding path program 2 times [2022-02-16 01:13:05,864 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 01:13:05,864 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397839467] [2022-02-16 01:13:05,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 01:13:05,864 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 01:13:05,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 01:13:05,907 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-16 01:13:05,907 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 01:13:05,907 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397839467] [2022-02-16 01:13:05,907 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397839467] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-16 01:13:05,907 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-16 01:13:05,907 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-16 01:13:05,908 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122541975] [2022-02-16 01:13:05,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-16 01:13:05,908 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-16 01:13:05,908 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 01:13:05,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-16 01:13:05,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-16 01:13:05,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 01:13:05,909 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 01:13:05,909 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 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) [2022-02-16 01:13:05,909 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-16 01:13:05,909 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-02-16 01:13:05,909 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-16 01:13:05,909 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 01:13:05,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-16 01:13:05,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-16 01:13:05,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-16 01:13:05,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-16 01:13:05,964 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-16 01:13:05,964 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-16 01:13:05,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 01:13:05,965 INFO L85 PathProgramCache]: Analyzing trace with hash -2010202274, now seen corresponding path program 1 times [2022-02-16 01:13:05,965 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 01:13:05,965 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730826814] [2022-02-16 01:13:05,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 01:13:05,965 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 01:13:05,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 01:13:05,981 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-02-16 01:13:05,981 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 01:13:05,981 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730826814] [2022-02-16 01:13:05,981 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730826814] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-16 01:13:05,981 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-16 01:13:05,982 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-16 01:13:05,982 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966779747] [2022-02-16 01:13:05,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-16 01:13:05,982 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-16 01:13:05,982 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 01:13:05,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-16 01:13:05,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-16 01:13:05,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 01:13:05,983 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 01:13:05,983 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 2 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-16 01:13:05,983 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-16 01:13:05,983 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-02-16 01:13:05,983 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-16 01:13:05,983 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-16 01:13:05,983 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 01:13:06,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-16 01:13:06,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-16 01:13:06,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-16 01:13:06,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-16 01:13:06,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-16 01:13:06,000 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-16 01:13:06,001 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-16 01:13:06,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 01:13:06,001 INFO L85 PathProgramCache]: Analyzing trace with hash -1760137470, now seen corresponding path program 2 times [2022-02-16 01:13:06,001 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 01:13:06,001 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25888823] [2022-02-16 01:13:06,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 01:13:06,002 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 01:13:06,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 01:13:06,054 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-16 01:13:06,055 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 01:13:06,056 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25888823] [2022-02-16 01:13:06,056 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25888823] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-16 01:13:06,056 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [40431490] [2022-02-16 01:13:06,056 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-16 01:13:06,056 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 01:13:06,056 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 01:13:06,058 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) [2022-02-16 01:13:06,059 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-16 01:13:06,103 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-16 01:13:06,103 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-16 01:13:06,104 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 7 conjunts are in the unsatisfiable core [2022-02-16 01:13:06,109 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-16 01:13:06,174 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-16 01:13:06,174 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-16 01:13:06,256 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-16 01:13:06,257 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [40431490] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-16 01:13:06,257 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-16 01:13:06,257 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 5 [2022-02-16 01:13:06,257 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388478239] [2022-02-16 01:13:06,257 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-16 01:13:06,258 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-16 01:13:06,258 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 01:13:06,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-16 01:13:06,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-02-16 01:13:06,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 01:13:06,258 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 01:13:06,258 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 5 states have internal predecessors, (32), 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) [2022-02-16 01:13:06,259 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-16 01:13:06,259 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-02-16 01:13:06,259 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-16 01:13:06,259 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-16 01:13:06,259 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-16 01:13:06,259 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 01:13:06,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-16 01:13:06,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-16 01:13:06,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-16 01:13:06,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-16 01:13:06,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-16 01:13:06,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-16 01:13:06,405 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-02-16 01:13:06,609 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 01:13:06,609 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-16 01:13:06,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 01:13:06,610 INFO L85 PathProgramCache]: Analyzing trace with hash 848900822, now seen corresponding path program 3 times [2022-02-16 01:13:06,610 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 01:13:06,610 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173277219] [2022-02-16 01:13:06,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 01:13:06,610 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 01:13:06,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 01:13:06,645 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 36 proven. 2 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2022-02-16 01:13:06,645 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 01:13:06,645 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173277219] [2022-02-16 01:13:06,645 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173277219] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-16 01:13:06,646 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1521902114] [2022-02-16 01:13:06,647 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-16 01:13:06,648 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 01:13:06,649 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 01:13:06,651 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) [2022-02-16 01:13:06,652 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-16 01:13:06,681 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2022-02-16 01:13:06,681 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-16 01:13:06,682 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 3 conjunts are in the unsatisfiable core [2022-02-16 01:13:06,684 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-16 01:13:06,751 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-02-16 01:13:06,751 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-16 01:13:06,751 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1521902114] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-16 01:13:06,751 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-16 01:13:06,751 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [3] total 4 [2022-02-16 01:13:06,751 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275580417] [2022-02-16 01:13:06,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-16 01:13:06,752 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-16 01:13:06,752 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 01:13:06,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-16 01:13:06,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-16 01:13:06,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 01:13:06,752 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 01:13:06,752 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 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) [2022-02-16 01:13:06,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-16 01:13:06,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-02-16 01:13:06,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-16 01:13:06,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-16 01:13:06,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-16 01:13:06,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-02-16 01:13:06,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 01:13:06,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-16 01:13:06,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-02-16 01:13:06,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-16 01:13:06,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-16 01:13:06,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-16 01:13:06,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-16 01:13:06,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-16 01:13:06,807 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (3 of 4 remaining) [2022-02-16 01:13:06,807 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-02-16 01:13:06,807 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-02-16 01:13:06,807 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-02-16 01:13:06,826 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-02-16 01:13:07,020 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 01:13:07,027 INFO L732 BasicCegarLoop]: Path program histogram: [3, 2, 2] [2022-02-16 01:13:07,029 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-16 01:13:07,029 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-16 01:13:07,031 INFO L202 PluginConnector]: Adding new model misc-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.02 01:13:07 BasicIcfg [2022-02-16 01:13:07,031 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-16 01:13:07,032 INFO L158 Benchmark]: Toolchain (without parser) took 2721.11ms. Allocated memory was 154.1MB in the beginning and 185.6MB in the end (delta: 31.5MB). Free memory was 115.7MB in the beginning and 113.5MB in the end (delta: 2.2MB). Peak memory consumption was 36.3MB. Max. memory is 8.0GB. [2022-02-16 01:13:07,032 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.10ms. Allocated memory is still 154.1MB. Free memory is still 116.7MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-16 01:13:07,032 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.58ms. Allocated memory is still 154.1MB. Free memory was 115.5MB in the beginning and 114.1MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-16 01:13:07,032 INFO L158 Benchmark]: Boogie Preprocessor took 11.93ms. Allocated memory is still 154.1MB. Free memory was 114.1MB in the beginning and 113.1MB in the end (delta: 993.1kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-16 01:13:07,033 INFO L158 Benchmark]: RCFGBuilder took 190.56ms. Allocated memory is still 154.1MB. Free memory was 113.1MB in the beginning and 104.4MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-02-16 01:13:07,033 INFO L158 Benchmark]: TraceAbstraction took 2479.26ms. Allocated memory was 154.1MB in the beginning and 185.6MB in the end (delta: 31.5MB). Free memory was 103.9MB in the beginning and 113.5MB in the end (delta: -9.6MB). Peak memory consumption was 22.6MB. Max. memory is 8.0GB. [2022-02-16 01:13:07,034 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 0.10ms. Allocated memory is still 154.1MB. Free memory is still 116.7MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 35.58ms. Allocated memory is still 154.1MB. Free memory was 115.5MB in the beginning and 114.1MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 11.93ms. Allocated memory is still 154.1MB. Free memory was 114.1MB in the beginning and 113.1MB in the end (delta: 993.1kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 190.56ms. Allocated memory is still 154.1MB. Free memory was 113.1MB in the beginning and 104.4MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * TraceAbstraction took 2479.26ms. Allocated memory was 154.1MB in the beginning and 185.6MB in the end (delta: 31.5MB). Free memory was 103.9MB in the beginning and 113.5MB in the end (delta: -9.6MB). Peak memory consumption was 22.6MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 4991, positive: 4361, positive conditional: 3682, positive unconditional: 679, negative: 630, negative conditional: 618, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4483, positive: 4361, positive conditional: 3682, positive unconditional: 679, negative: 122, negative conditional: 110, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 4483, positive: 4361, positive conditional: 3682, positive unconditional: 679, negative: 122, negative conditional: 110, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5188, positive: 4361, positive conditional: 3605, positive unconditional: 756, negative: 827, negative conditional: 705, negative unconditional: 122, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 5188, positive: 4361, positive conditional: 1747, positive unconditional: 2614, negative: 827, negative conditional: 111, negative unconditional: 716, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 5188, positive: 4361, positive conditional: 1747, positive unconditional: 2614, negative: 827, negative conditional: 111, negative unconditional: 716, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 553, positive: 525, positive conditional: 38, positive unconditional: 487, negative: 28, negative conditional: 14, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 553, positive: 477, positive conditional: 0, positive unconditional: 477, negative: 76, negative conditional: 0, negative unconditional: 76, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 76, positive: 48, positive conditional: 38, positive unconditional: 10, negative: 28, negative conditional: 14, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 201, positive: 100, positive conditional: 51, positive unconditional: 50, negative: 101, negative conditional: 17, negative unconditional: 83, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 5188, positive: 3836, positive conditional: 1709, positive unconditional: 2127, negative: 799, negative conditional: 97, negative unconditional: 702, unknown: 553, unknown conditional: 52, unknown unconditional: 501] , Statistics on independence cache: Total cache size (in pairs): 553, Positive cache size: 525, Positive conditional cache size: 38, Positive unconditional cache size: 487, Negative cache size: 28, Negative conditional cache size: 14, Negative unconditional cache size: 14, Eliminated conditions: 2452, Maximal queried relation: 6, Independence queries for same thread: 508 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.2s, Number of persistent set computation: 94, Number of trivial persistent sets: 53, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 691, positive: 679, positive conditional: 0, positive unconditional: 679, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 4991, positive: 4361, positive conditional: 3682, positive unconditional: 679, negative: 630, negative conditional: 618, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4483, positive: 4361, positive conditional: 3682, positive unconditional: 679, negative: 122, negative conditional: 110, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 4483, positive: 4361, positive conditional: 3682, positive unconditional: 679, negative: 122, negative conditional: 110, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 5188, positive: 4361, positive conditional: 3605, positive unconditional: 756, negative: 827, negative conditional: 705, negative unconditional: 122, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 5188, positive: 4361, positive conditional: 1747, positive unconditional: 2614, negative: 827, negative conditional: 111, negative unconditional: 716, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 5188, positive: 4361, positive conditional: 1747, positive unconditional: 2614, negative: 827, negative conditional: 111, negative unconditional: 716, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 553, positive: 525, positive conditional: 38, positive unconditional: 487, negative: 28, negative conditional: 14, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 553, positive: 477, positive conditional: 0, positive unconditional: 477, negative: 76, negative conditional: 0, negative unconditional: 76, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 76, positive: 48, positive conditional: 38, positive unconditional: 10, negative: 28, negative conditional: 14, negative unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 201, positive: 100, positive conditional: 51, positive unconditional: 50, negative: 101, negative conditional: 17, negative unconditional: 83, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 5188, positive: 3836, positive conditional: 1709, positive unconditional: 2127, negative: 799, negative conditional: 97, negative unconditional: 702, unknown: 553, unknown conditional: 52, unknown unconditional: 501] , Statistics on independence cache: Total cache size (in pairs): 553, Positive cache size: 525, Positive conditional cache size: 38, Positive unconditional cache size: 487, Negative cache size: 28, Negative conditional cache size: 14, Negative unconditional cache size: 14, Eliminated conditions: 2452, Maximal queried relation: 6, Independence queries for same thread: 508 - 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 - PositiveResult [Line: 62]: assertion always holds For all program executions holds that assertion always holds at this location - 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: 2.4s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.8s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 31, 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, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 332 NumberOfCodeBlocks, 324 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 376 ConstructedInterpolants, 0 QuantifiedInterpolants, 590 SizeOfPredicates, 2 NumberOfNonLiveVariables, 189 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 12 InterpolantComputations, 5 PerfectInterpolantSequences, 286/321 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-02-16 01:13:07,064 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2022-02-16 01:13:07,286 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...