/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-FA-NoLbe-Delay.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-incorrect04.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-87fd7473a0bda1db0ad7f77f2116346063730f21-87fd747 [2021-08-21 19:02:02,257 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-21 19:02:02,259 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-21 19:02:02,293 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-08-21 19:02:02,351 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-FA-NoLbe-Delay.epf [2021-08-21 19:02:02,389 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-21 19:02:02,389 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-21 19:02:02,392 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-21 19:02:02,393 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-21 19:02:02,393 INFO L138 SettingsManager]: * Use SBE=true [2021-08-21 19:02:02,393 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-21 19:02:02,393 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-21 19:02:02,393 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-21 19:02:02,394 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-21 19:02:02,394 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-21 19:02:02,395 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-21 19:02:02,395 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-21 19:02:02,395 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-21 19:02:02,395 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-21 19:02:02,395 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-21 19:02:02,395 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-21 19:02:02,396 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-21 19:02:02,396 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-21 19:02:02,396 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-21 19:02:02,396 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-21 19:02:02,396 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-21 19:02:02,397 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-21 19:02:02,397 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-21 19:02:02,397 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-21 19:02:02,397 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-21 19:02:02,397 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-21 19:02:02,397 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-21 19:02:02,398 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-21 19:02:02,398 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-21 19:02:02,398 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-08-21 19:02:02,398 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-21 19:02:02,737 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-21 19:02:02,757 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-21 19:02:02,759 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-21 19:02:02,760 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-08-21 19:02:02,761 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-08-21 19:02:02,762 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-incorrect04.bpl [2021-08-21 19:02:02,762 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-incorrect04.bpl' [2021-08-21 19:02:02,794 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-21 19:02:02,796 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-08-21 19:02:02,797 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-21 19:02:02,797 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-21 19:02:02,797 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-21 19:02:02,809 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "bluetooth-incorrect04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 07:02:02" (1/1) ... [2021-08-21 19:02:02,815 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "bluetooth-incorrect04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 07:02:02" (1/1) ... [2021-08-21 19:02:02,831 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-21 19:02:02,832 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-21 19:02:02,832 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-21 19:02:02,833 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-21 19:02:02,839 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "bluetooth-incorrect04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 07:02:02" (1/1) ... [2021-08-21 19:02:02,840 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "bluetooth-incorrect04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 07:02:02" (1/1) ... [2021-08-21 19:02:02,841 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "bluetooth-incorrect04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 07:02:02" (1/1) ... [2021-08-21 19:02:02,841 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "bluetooth-incorrect04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 07:02:02" (1/1) ... [2021-08-21 19:02:02,844 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "bluetooth-incorrect04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 07:02:02" (1/1) ... [2021-08-21 19:02:02,846 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "bluetooth-incorrect04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 07:02:02" (1/1) ... [2021-08-21 19:02:02,847 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "bluetooth-incorrect04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 07:02:02" (1/1) ... [2021-08-21 19:02:02,848 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-21 19:02:02,849 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-21 19:02:02,849 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-21 19:02:02,850 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-21 19:02:02,851 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "bluetooth-incorrect04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 07:02:02" (1/1) ... [2021-08-21 19:02:02,857 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-21 19:02:02,865 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-21 19:02:02,878 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-21 19:02:02,906 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-21 19:02:02,929 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThreadWithAssert given in one single declaration [2021-08-21 19:02:02,929 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThreadWithAssert [2021-08-21 19:02:02,929 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThreadWithAssert [2021-08-21 19:02:02,929 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThread given in one single declaration [2021-08-21 19:02:02,929 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThread [2021-08-21 19:02:02,930 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThread [2021-08-21 19:02:02,930 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ServerThread given in one single declaration [2021-08-21 19:02:02,930 INFO L130 BoogieDeclarations]: Found specification of procedure ServerThread [2021-08-21 19:02:02,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ServerThread [2021-08-21 19:02:02,930 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-08-21 19:02:02,930 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-21 19:02:02,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-21 19:02:02,931 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-08-21 19:02:03,239 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-21 19:02:03,239 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-08-21 19:02:03,241 INFO L202 PluginConnector]: Adding new model bluetooth-incorrect04.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 07:02:03 BoogieIcfgContainer [2021-08-21 19:02:03,241 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-21 19:02:03,243 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-21 19:02:03,243 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-21 19:02:03,245 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-21 19:02:03,245 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-incorrect04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 07:02:02" (1/2) ... [2021-08-21 19:02:03,246 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24cb1bde and model type bluetooth-incorrect04.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 07:02:03, skipping insertion in model container [2021-08-21 19:02:03,246 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-incorrect04.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 07:02:03" (2/2) ... [2021-08-21 19:02:03,247 INFO L111 eAbstractionObserver]: Analyzing ICFG bluetooth-incorrect04.bpl [2021-08-21 19:02:03,258 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-08-21 19:02:03,259 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-21 19:02:03,259 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-21 19:02:03,259 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-21 19:02:03,287 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-08-21 19:02:03,324 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-21 19:02:03,332 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-21 19:02:03,333 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-08-21 19:02:04,263 INFO L276 IsEmpty]: Start isEmpty. Operand has 4607 states, 3840 states have (on average 2.2747395833333335) internal successors, (8735), 4606 states have internal predecessors, (8735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 19:02:04,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-08-21 19:02:04,280 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 19:02:04,281 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 19:02:04,281 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2021-08-21 19:02:04,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 19:02:04,286 INFO L82 PathProgramCache]: Analyzing trace with hash -670902013, now seen corresponding path program 1 times [2021-08-21 19:02:04,293 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 19:02:04,293 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500368181] [2021-08-21 19:02:04,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 19:02:04,294 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 19:02:04,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 19:02:04,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 19:02:04,399 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 19:02:04,400 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500368181] [2021-08-21 19:02:04,401 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500368181] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 19:02:04,401 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 19:02:04,401 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-21 19:02:04,402 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198952383] [2021-08-21 19:02:04,405 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-21 19:02:04,405 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 19:02:04,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-21 19:02:04,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-21 19:02:04,431 INFO L87 Difference]: Start difference. First operand has 4607 states, 3840 states have (on average 2.2747395833333335) internal successors, (8735), 4606 states have internal predecessors, (8735), 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) Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 19:02:04,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 19:02:04,504 INFO L93 Difference]: Finished difference Result 4011 states and 7209 transitions. [2021-08-21 19:02:04,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-21 19:02:04,506 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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) Word has length 9 [2021-08-21 19:02:04,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 19:02:04,548 INFO L225 Difference]: With dead ends: 4011 [2021-08-21 19:02:04,548 INFO L226 Difference]: Without dead ends: 2390 [2021-08-21 19:02:04,549 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-21 19:02:04,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2390 states. [2021-08-21 19:02:04,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2390 to 2390. [2021-08-21 19:02:04,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2390 states, 2241 states have (on average 2.459170013386881) internal successors, (5511), 2389 states have internal predecessors, (5511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 19:02:04,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2390 states to 2390 states and 5511 transitions. [2021-08-21 19:02:04,727 INFO L78 Accepts]: Start accepts. Automaton has 2390 states and 5511 transitions. Word has length 9 [2021-08-21 19:02:04,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 19:02:04,727 INFO L470 AbstractCegarLoop]: Abstraction has 2390 states and 5511 transitions. [2021-08-21 19:02:04,728 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 19:02:04,728 INFO L276 IsEmpty]: Start isEmpty. Operand 2390 states and 5511 transitions. [2021-08-21 19:02:04,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-08-21 19:02:04,734 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 19:02:04,734 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 19:02:04,735 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-21 19:02:04,735 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2021-08-21 19:02:04,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 19:02:04,736 INFO L82 PathProgramCache]: Analyzing trace with hash -98586751, now seen corresponding path program 1 times [2021-08-21 19:02:04,736 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 19:02:04,736 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941832372] [2021-08-21 19:02:04,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 19:02:04,736 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 19:02:04,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 19:02:04,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-21 19:02:04,802 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 19:02:04,803 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941832372] [2021-08-21 19:02:04,804 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [941832372] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 19:02:04,804 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 19:02:04,804 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-21 19:02:04,804 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541758959] [2021-08-21 19:02:04,805 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-21 19:02:04,805 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 19:02:04,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-21 19:02:04,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-08-21 19:02:04,807 INFO L87 Difference]: Start difference. First operand 2390 states and 5511 transitions. Second operand has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 19:02:04,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 19:02:04,935 INFO L93 Difference]: Finished difference Result 5146 states and 12763 transitions. [2021-08-21 19:02:04,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-21 19:02:04,936 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 5 states have internal predecessors, (13), 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) Word has length 13 [2021-08-21 19:02:04,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 19:02:04,969 INFO L225 Difference]: With dead ends: 5146 [2021-08-21 19:02:04,970 INFO L226 Difference]: Without dead ends: 5146 [2021-08-21 19:02:04,970 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 23.0ms TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-08-21 19:02:04,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5146 states. [2021-08-21 19:02:05,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5146 to 4344. [2021-08-21 19:02:05,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4344 states, 4195 states have (on average 2.835756853396901) internal successors, (11896), 4343 states have internal predecessors, (11896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 19:02:05,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4344 states to 4344 states and 11896 transitions. [2021-08-21 19:02:05,134 INFO L78 Accepts]: Start accepts. Automaton has 4344 states and 11896 transitions. Word has length 13 [2021-08-21 19:02:05,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 19:02:05,134 INFO L470 AbstractCegarLoop]: Abstraction has 4344 states and 11896 transitions. [2021-08-21 19:02:05,135 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-21 19:02:05,135 INFO L276 IsEmpty]: Start isEmpty. Operand 4344 states and 11896 transitions. [2021-08-21 19:02:05,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-08-21 19:02:05,139 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 19:02:05,139 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 19:02:05,139 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-21 19:02:05,140 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2021-08-21 19:02:05,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 19:02:05,140 INFO L82 PathProgramCache]: Analyzing trace with hash 359896739, now seen corresponding path program 2 times [2021-08-21 19:02:05,140 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 19:02:05,141 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545591026] [2021-08-21 19:02:05,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 19:02:05,141 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 19:02:05,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-21 19:02:05,148 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-21 19:02:05,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-21 19:02:05,165 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-21 19:02:05,165 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-08-21 19:02:05,166 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT [2021-08-21 19:02:05,167 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT [2021-08-21 19:02:05,167 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-08-21 19:02:05,168 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION [2021-08-21 19:02:05,168 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATION [2021-08-21 19:02:05,168 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3INUSE_VIOLATION [2021-08-21 19:02:05,168 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4INUSE_VIOLATION [2021-08-21 19:02:05,168 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-21 19:02:05,173 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-08-21 19:02:05,173 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-21 19:02:05,183 INFO L202 PluginConnector]: Adding new model bluetooth-incorrect04.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.08 07:02:05 BasicIcfg [2021-08-21 19:02:05,183 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-21 19:02:05,185 INFO L168 Benchmark]: Toolchain (without parser) took 2388.56 ms. Allocated memory was 182.5 MB in the beginning and 229.6 MB in the end (delta: 47.2 MB). Free memory was 163.2 MB in the beginning and 93.0 MB in the end (delta: 70.2 MB). Peak memory consumption was 117.9 MB. Max. memory is 8.0 GB. [2021-08-21 19:02:05,185 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.51 ms. Allocated memory is still 182.5 MB. Free memory is still 164.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-08-21 19:02:05,186 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.33 ms. Allocated memory is still 182.5 MB. Free memory was 163.1 MB in the beginning and 161.3 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-08-21 19:02:05,186 INFO L168 Benchmark]: Boogie Preprocessor took 16.28 ms. Allocated memory is still 182.5 MB. Free memory was 161.3 MB in the beginning and 160.4 MB in the end (delta: 890.0 kB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-08-21 19:02:05,187 INFO L168 Benchmark]: RCFGBuilder took 391.91 ms. Allocated memory is still 182.5 MB. Free memory was 160.3 MB in the beginning and 145.8 MB in the end (delta: 14.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2021-08-21 19:02:05,187 INFO L168 Benchmark]: TraceAbstraction took 1940.97 ms. Allocated memory was 182.5 MB in the beginning and 229.6 MB in the end (delta: 47.2 MB). Free memory was 145.4 MB in the beginning and 93.0 MB in the end (delta: 52.4 MB). Peak memory consumption was 100.1 MB. Max. memory is 8.0 GB. [2021-08-21 19:02:05,189 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 0.51 ms. Allocated memory is still 182.5 MB. Free memory is still 164.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 34.33 ms. Allocated memory is still 182.5 MB. Free memory was 163.1 MB in the beginning and 161.3 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 16.28 ms. Allocated memory is still 182.5 MB. Free memory was 161.3 MB in the beginning and 160.4 MB in the end (delta: 890.0 kB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 391.91 ms. Allocated memory is still 182.5 MB. Free memory was 160.3 MB in the beginning and 145.8 MB in the end (delta: 14.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1940.97 ms. Allocated memory was 182.5 MB in the beginning and 229.6 MB in the end (delta: 47.2 MB). Free memory was 145.4 MB in the beginning and 93.0 MB in the end (delta: 52.4 MB). Peak memory consumption was 100.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 28496, positive: 25549, positive conditional: 25549, positive unconditional: 0, negative: 2947, negative conditional: 2947, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 27197, positive: 25549, positive conditional: 0, positive unconditional: 25549, negative: 1648, negative conditional: 0, negative unconditional: 1648, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 321, positive: 296, positive conditional: 0, positive unconditional: 296, negative: 25, negative conditional: 0, negative unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 321, positive: 271, positive conditional: 0, positive unconditional: 271, negative: 50, negative conditional: 0, negative unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 50, positive: 25, positive conditional: 0, positive unconditional: 25, negative: 25, negative conditional: 0, negative unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 227, positive: 120, positive conditional: 0, positive unconditional: 120, negative: 107, negative conditional: 0, negative unconditional: 107, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 27197, positive: 25253, positive conditional: 0, positive unconditional: 25253, negative: 1623, negative conditional: 0, negative unconditional: 1623, unknown: 321, unknown conditional: 0, unknown unconditional: 321] , Statistics on independence cache: Total cache size (in pairs): 321, Positive cache size: 296, Positive conditional cache size: 0, Positive unconditional cache size: 296, Negative cache size: 25, Negative conditional cache size: 0, Negative unconditional cache size: 25, Independence queries for same thread: 1299 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 37]: assertion can be violated assertion can be violated We found a FailurePath: [L14] 0 pendingIo := 1; VAL [pendingIo=1] [L15] 0 stopped := false; VAL [pendingIo=1, stopped=false] [L16] 0 stoppingEvent := false; VAL [pendingIo=1, stopped=false, stoppingEvent=false] [L17] 0 stoppingFlag := false; VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L19] FORK 0 fork 0 ServerThread(); VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L21] FORK 0 fork 1 DeviceThreadWithAssert(); VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L59] 2 assume !stoppingFlag; VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L81] 1 stoppingFlag := true; VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=true] [L91] 1 pendingIo := pendingIo - 1; [L92] COND TRUE 1 pendingIo == 0 [L93] 1 stoppingEvent := true; VAL [pendingIo=0, stopped=false, stoppingEvent=true, stoppingFlag=true] [L60] 2 pendingIo := pendingIo + 1; VAL [pendingIo=1, stopped=false, stoppingEvent=true, stoppingFlag=true] [L83] 1 assume stoppingEvent; VAL [pendingIo=1, stopped=false, stoppingEvent=true, stoppingFlag=true] [L84] 1 stopped := true; VAL [pendingIo=1, stopped=true, stoppingEvent=true, stoppingFlag=true] [L37] 2 assert !stopped; VAL [pendingIo=1, stopped=true, stoppingEvent=true, stoppingFlag=true] - UnprovableResult [Line: 21]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 22]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 19]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 23]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 19]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 56 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 1848.1ms, OverallIterations: 3, TraceHistogramMax: 1, EmptinessCheckTime: 43.2ms, AutomataDifference: 309.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 914.6ms, PartialOrderReductionTime: 900.4ms, HoareTripleCheckerStatistics: 67 SDtfs, 69 SDslu, 56 SDs, 0 SdLazy, 39 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 54.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 27.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=4607occurred in iteration=0, InterpolantAutomatonStates: 8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 329.9ms AutomataMinimizationTime, 2 MinimizatonAttempts, 802 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 4.7ms SsaConstructionTime, 22.7ms SatisfiabilityAnalysisTime, 98.2ms InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 67 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 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 proved your program to be incorrect! [2021-08-21 19:02:05,252 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...