/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleep-NoLbe-Random7777.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-incorrect02.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-87fd7473a0bda1db0ad7f77f2116346063730f21-87fd747 [2021-08-22 10:32:20,880 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-22 10:32:20,881 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-22 10:32:20,908 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-08-22 10:32:20,960 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleep-NoLbe-Random7777.epf [2021-08-22 10:32:20,980 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-22 10:32:20,980 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-22 10:32:20,981 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-22 10:32:20,981 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-22 10:32:20,981 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-22 10:32:20,982 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-22 10:32:20,982 INFO L138 SettingsManager]: * Use SBE=true [2021-08-22 10:32:20,982 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-22 10:32:20,982 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-22 10:32:20,982 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-22 10:32:20,982 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-22 10:32:20,982 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-22 10:32:20,982 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-22 10:32:20,983 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-22 10:32:20,983 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-22 10:32:20,983 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-22 10:32:20,983 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-22 10:32:20,983 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-22 10:32:20,983 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-22 10:32:20,983 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-22 10:32:20,983 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-22 10:32:20,984 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-22 10:32:20,984 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-22 10:32:20,984 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-22 10:32:20,984 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-22 10:32:20,984 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-22 10:32:20,984 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-22 10:32:20,984 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-22 10:32:20,984 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-08-22 10:32:20,985 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-22 10:32:20,985 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-22 10:32:20,985 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-08-22 10:32:20,985 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-22 10:32:20,985 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2021-08-22 10:32:20,985 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-22 10:32:20,985 INFO L138 SettingsManager]: * Random seed used by POR DFS order=7777 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-22 10:32:21,198 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-22 10:32:21,218 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-22 10:32:21,220 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-22 10:32:21,221 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-08-22 10:32:21,222 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-08-22 10:32:21,222 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-incorrect02.bpl [2021-08-22 10:32:21,223 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-incorrect02.bpl' [2021-08-22 10:32:21,246 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-22 10:32:21,248 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-08-22 10:32:21,249 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-22 10:32:21,249 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-22 10:32:21,249 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-22 10:32:21,273 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "bluetooth-incorrect02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.08 10:32:21" (1/1) ... [2021-08-22 10:32:21,278 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "bluetooth-incorrect02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.08 10:32:21" (1/1) ... [2021-08-22 10:32:21,303 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-22 10:32:21,305 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-22 10:32:21,305 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-22 10:32:21,305 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-22 10:32:21,310 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "bluetooth-incorrect02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.08 10:32:21" (1/1) ... [2021-08-22 10:32:21,310 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "bluetooth-incorrect02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.08 10:32:21" (1/1) ... [2021-08-22 10:32:21,311 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "bluetooth-incorrect02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.08 10:32:21" (1/1) ... [2021-08-22 10:32:21,311 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "bluetooth-incorrect02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.08 10:32:21" (1/1) ... [2021-08-22 10:32:21,313 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "bluetooth-incorrect02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.08 10:32:21" (1/1) ... [2021-08-22 10:32:21,316 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "bluetooth-incorrect02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.08 10:32:21" (1/1) ... [2021-08-22 10:32:21,316 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "bluetooth-incorrect02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.08 10:32:21" (1/1) ... [2021-08-22 10:32:21,317 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-22 10:32:21,318 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-22 10:32:21,318 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-22 10:32:21,318 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-22 10:32:21,319 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "bluetooth-incorrect02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.08 10:32:21" (1/1) ... [2021-08-22 10:32:21,323 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-22 10:32:21,328 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-22 10:32:21,338 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) [2021-08-22 10:32:21,356 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 [2021-08-22 10:32:21,375 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThreadWithAssert given in one single declaration [2021-08-22 10:32:21,375 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThreadWithAssert [2021-08-22 10:32:21,375 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThreadWithAssert [2021-08-22 10:32:21,376 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThread given in one single declaration [2021-08-22 10:32:21,376 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThread [2021-08-22 10:32:21,376 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThread [2021-08-22 10:32:21,377 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ServerThread given in one single declaration [2021-08-22 10:32:21,377 INFO L130 BoogieDeclarations]: Found specification of procedure ServerThread [2021-08-22 10:32:21,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ServerThread [2021-08-22 10:32:21,377 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-08-22 10:32:21,377 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-22 10:32:21,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-22 10:32:21,378 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-08-22 10:32:21,598 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-22 10:32:21,599 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-08-22 10:32:21,600 INFO L202 PluginConnector]: Adding new model bluetooth-incorrect02.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 10:32:21 BoogieIcfgContainer [2021-08-22 10:32:21,600 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-22 10:32:21,602 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-22 10:32:21,602 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-22 10:32:21,603 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-22 10:32:21,604 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-incorrect02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.08 10:32:21" (1/2) ... [2021-08-22 10:32:21,604 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b71141c and model type bluetooth-incorrect02.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 10:32:21, skipping insertion in model container [2021-08-22 10:32:21,604 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-incorrect02.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 10:32:21" (2/2) ... [2021-08-22 10:32:21,605 INFO L111 eAbstractionObserver]: Analyzing ICFG bluetooth-incorrect02.bpl [2021-08-22 10:32:21,608 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-08-22 10:32:21,608 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-22 10:32:21,608 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-22 10:32:21,608 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-22 10:32:21,651 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-08-22 10:32:21,678 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-08-22 10:32:21,678 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-22 10:32:21,679 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) [2021-08-22 10:32:21,693 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 [2021-08-22 10:32:21,707 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-22 10:32:21,713 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=PARTIAL_ORDER_FA, 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 [2021-08-22 10:32:21,713 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-08-22 10:32:21,788 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-08-22 10:32:21,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-22 10:32:21,797 INFO L82 PathProgramCache]: Analyzing trace with hash -1102474711, now seen corresponding path program 1 times [2021-08-22 10:32:21,803 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-22 10:32:21,803 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298838574] [2021-08-22 10:32:21,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-22 10:32:21,804 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-22 10:32:21,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-22 10:32:21,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-22 10:32:21,929 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-22 10:32:21,929 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298838574] [2021-08-22 10:32:21,930 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [298838574] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-22 10:32:21,930 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-22 10:32:21,930 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-22 10:32:21,931 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617018775] [2021-08-22 10:32:21,935 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-22 10:32:21,936 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-22 10:32:21,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-22 10:32:21,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-22 10:32:21,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-22 10:32:21,949 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-22 10:32:21,950 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2021-08-22 10:32:21,950 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-22 10:32:22,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-22 10:32:22,010 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-22 10:32:22,010 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-08-22 10:32:22,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-22 10:32:22,013 INFO L82 PathProgramCache]: Analyzing trace with hash 1113444328, now seen corresponding path program 1 times [2021-08-22 10:32:22,013 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-22 10:32:22,013 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428200238] [2021-08-22 10:32:22,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-22 10:32:22,014 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-22 10:32:22,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-22 10:32:22,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-22 10:32:22,108 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-22 10:32:22,108 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428200238] [2021-08-22 10:32:22,109 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428200238] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-22 10:32:22,109 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-22 10:32:22,109 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-22 10:32:22,109 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616002391] [2021-08-22 10:32:22,110 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-22 10:32:22,111 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-22 10:32:22,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-22 10:32:22,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-08-22 10:32:22,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-22 10:32:22,114 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-22 10:32:22,114 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 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) [2021-08-22 10:32:22,114 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-22 10:32:22,114 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-22 10:32:22,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-22 10:32:22,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-22 10:32:22,164 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-22 10:32:22,164 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-08-22 10:32:22,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-22 10:32:22,165 INFO L82 PathProgramCache]: Analyzing trace with hash -1221149789, now seen corresponding path program 1 times [2021-08-22 10:32:22,165 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-22 10:32:22,165 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877984076] [2021-08-22 10:32:22,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-22 10:32:22,166 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-22 10:32:22,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-22 10:32:22,199 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-22 10:32:22,199 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-22 10:32:22,200 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877984076] [2021-08-22 10:32:22,200 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877984076] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-22 10:32:22,200 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-22 10:32:22,200 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-22 10:32:22,200 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805320999] [2021-08-22 10:32:22,200 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-22 10:32:22,200 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-22 10:32:22,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-22 10:32:22,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-22 10:32:22,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-22 10:32:22,201 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-22 10:32:22,202 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-22 10:32:22,202 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-22 10:32:22,202 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-08-22 10:32:22,202 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-22 10:32:22,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-22 10:32:22,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-22 10:32:22,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-22 10:32:22,211 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-22 10:32:22,211 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-08-22 10:32:22,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-22 10:32:22,211 INFO L82 PathProgramCache]: Analyzing trace with hash -356143354, now seen corresponding path program 2 times [2021-08-22 10:32:22,212 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-22 10:32:22,212 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045295135] [2021-08-22 10:32:22,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-22 10:32:22,212 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-22 10:32:22,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-22 10:32:22,216 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-22 10:32:22,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-22 10:32:22,227 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-22 10:32:22,227 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-08-22 10:32:22,228 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT [2021-08-22 10:32:22,229 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT [2021-08-22 10:32:22,229 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-08-22 10:32:22,229 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION [2021-08-22 10:32:22,229 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATION [2021-08-22 10:32:22,229 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-22 10:32:22,235 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-08-22 10:32:22,235 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-22 10:32:22,242 INFO L202 PluginConnector]: Adding new model bluetooth-incorrect02.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 10:32:22 BasicIcfg [2021-08-22 10:32:22,243 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-22 10:32:22,257 INFO L168 Benchmark]: Toolchain (without parser) took 995.56 ms. Allocated memory is still 184.5 MB. Free memory was 164.6 MB in the beginning and 139.6 MB in the end (delta: 25.0 MB). Peak memory consumption was 25.5 MB. Max. memory is 8.0 GB. [2021-08-22 10:32:22,257 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.13 ms. Allocated memory is still 184.5 MB. Free memory is still 165.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-08-22 10:32:22,258 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.10 ms. Allocated memory is still 184.5 MB. Free memory was 164.4 MB in the beginning and 162.7 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-08-22 10:32:22,258 INFO L168 Benchmark]: Boogie Preprocessor took 12.71 ms. Allocated memory is still 184.5 MB. Free memory was 162.7 MB in the beginning and 161.7 MB in the end (delta: 974.5 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-08-22 10:32:22,258 INFO L168 Benchmark]: RCFGBuilder took 282.63 ms. Allocated memory is still 184.5 MB. Free memory was 161.7 MB in the beginning and 147.2 MB in the end (delta: 14.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2021-08-22 10:32:22,259 INFO L168 Benchmark]: TraceAbstraction took 641.08 ms. Allocated memory is still 184.5 MB. Free memory was 146.8 MB in the beginning and 139.6 MB in the end (delta: 7.2 MB). Peak memory consumption was 7.7 MB. Max. memory is 8.0 GB. [2021-08-22 10:32:22,260 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 0.13 ms. Allocated memory is still 184.5 MB. Free memory is still 165.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 55.10 ms. Allocated memory is still 184.5 MB. Free memory was 164.4 MB in the beginning and 162.7 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 12.71 ms. Allocated memory is still 184.5 MB. Free memory was 162.7 MB in the beginning and 161.7 MB in the end (delta: 974.5 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 282.63 ms. Allocated memory is still 184.5 MB. Free memory was 161.7 MB in the beginning and 147.2 MB in the end (delta: 14.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 641.08 ms. Allocated memory is still 184.5 MB. Free memory was 146.8 MB in the beginning and 139.6 MB in the end (delta: 7.2 MB). Peak memory consumption was 7.7 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: 266, positive: 206, positive conditional: 206, positive unconditional: 0, negative: 60, negative conditional: 60, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 217, positive: 206, positive conditional: 206, positive unconditional: 0, negative: 11, negative conditional: 11, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 217, positive: 206, positive conditional: 206, positive unconditional: 0, negative: 11, negative conditional: 11, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 236, positive: 206, positive conditional: 156, positive unconditional: 50, negative: 30, negative conditional: 19, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 236, positive: 206, positive conditional: 26, positive unconditional: 180, negative: 30, negative conditional: 11, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 236, positive: 206, positive conditional: 26, positive unconditional: 180, negative: 30, negative conditional: 11, negative unconditional: 19, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 58, positive: 54, positive conditional: 10, positive unconditional: 44, negative: 4, negative conditional: 2, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 58, positive: 48, positive conditional: 0, positive unconditional: 48, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 10, positive: 6, positive conditional: 1, positive unconditional: 5, negative: 4, negative conditional: 2, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 67, positive: 55, positive conditional: 1, positive unconditional: 54, negative: 11, negative conditional: 7, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 236, positive: 152, positive conditional: 16, positive unconditional: 136, negative: 26, negative conditional: 9, negative unconditional: 17, unknown: 58, unknown conditional: 12, unknown unconditional: 46] , Statistics on independence cache: Total cache size (in pairs): 58, Positive cache size: 54, Positive conditional cache size: 10, Positive unconditional cache size: 44, Negative cache size: 4, Negative conditional cache size: 2, Negative unconditional cache size: 2, Eliminated conditions: 138, Maximal queried relation: 3, Independence queries for same thread: 49 - 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: 35]: 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] [L22] FORK 0 fork 2 DeviceThread(); VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L57] 2 assume !stoppingFlag; VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L79] 1 stoppingFlag := true; VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=true] [L89] 1 pendingIo := pendingIo - 1; [L90] COND TRUE 1 pendingIo == 0 [L91] 1 stoppingEvent := true; VAL [pendingIo=0, stopped=false, stoppingEvent=true, stoppingFlag=true] [L58] 2 pendingIo := pendingIo + 1; VAL [pendingIo=1, stopped=false, stoppingEvent=true, stoppingFlag=true] [L81] 1 assume stoppingEvent; VAL [pendingIo=1, stopped=false, stoppingEvent=true, stoppingFlag=true] [L82] 1 stopped := true; VAL [pendingIo=1, stopped=true, stoppingEvent=true, stoppingFlag=true] [L35] 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: 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: 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 7 procedures, 44 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 557.4ms, OverallIterations: 4, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 13.6ms, PartialOrderReductionTime: 178.9ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 9.6ms SsaConstructionTime, 32.0ms SatisfiabilityAnalysisTime, 159.6ms InterpolantComputationTime, 67 NumberOfCodeBlocks, 67 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 47 ConstructedInterpolants, 0 QuantifiedInterpolants, 112 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 3/3 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! [2021-08-22 10:32:22,305 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 [2021-08-22 10:32:22,501 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...