/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-incorrect06.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-87fd7473a0bda1db0ad7f77f2116346063730f21-87fd747 [2021-08-21 19:02:12,686 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-21 19:02:12,688 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-21 19:02:12,707 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-08-21 19:02:12,734 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-21 19:02:12,735 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-21 19:02:12,735 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-21 19:02:12,741 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 19:02:12,762 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-21 19:02:12,762 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-21 19:02:12,763 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-21 19:02:12,763 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-21 19:02:12,763 INFO L138 SettingsManager]: * Use SBE=true [2021-08-21 19:02:12,763 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-21 19:02:12,763 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-21 19:02:12,763 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-21 19:02:12,764 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-21 19:02:12,764 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-21 19:02:12,764 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-21 19:02:12,764 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-21 19:02:12,764 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-21 19:02:12,764 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-21 19:02:12,764 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-21 19:02:12,764 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-21 19:02:12,764 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-21 19:02:12,764 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-21 19:02:12,765 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-21 19:02:12,765 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-21 19:02:12,765 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-21 19:02:12,765 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-21 19:02:12,765 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-21 19:02:12,765 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-21 19:02:12,765 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-21 19:02:12,765 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-21 19:02:12,765 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-21 19:02:12,766 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-21 19:02:12,766 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-21 19:02:12,766 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-08-21 19:02:12,766 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-21 19:02:13,022 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-21 19:02:13,043 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-21 19:02:13,045 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-21 19:02:13,046 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-08-21 19:02:13,049 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-08-21 19:02:13,049 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-incorrect06.bpl [2021-08-21 19:02:13,050 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-incorrect06.bpl' [2021-08-21 19:02:13,068 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-21 19:02:13,069 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-08-21 19:02:13,070 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-21 19:02:13,070 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-21 19:02:13,070 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-21 19:02:13,079 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "bluetooth-incorrect06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 07:02:13" (1/1) ... [2021-08-21 19:02:13,084 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "bluetooth-incorrect06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 07:02:13" (1/1) ... [2021-08-21 19:02:13,095 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-21 19:02:13,097 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-21 19:02:13,097 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-21 19:02:13,097 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-21 19:02:13,102 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "bluetooth-incorrect06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 07:02:13" (1/1) ... [2021-08-21 19:02:13,102 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "bluetooth-incorrect06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 07:02:13" (1/1) ... [2021-08-21 19:02:13,103 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "bluetooth-incorrect06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 07:02:13" (1/1) ... [2021-08-21 19:02:13,103 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "bluetooth-incorrect06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 07:02:13" (1/1) ... [2021-08-21 19:02:13,104 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "bluetooth-incorrect06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 07:02:13" (1/1) ... [2021-08-21 19:02:13,106 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "bluetooth-incorrect06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 07:02:13" (1/1) ... [2021-08-21 19:02:13,106 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "bluetooth-incorrect06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 07:02:13" (1/1) ... [2021-08-21 19:02:13,107 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-21 19:02:13,108 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-21 19:02:13,108 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-21 19:02:13,108 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-21 19:02:13,109 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "bluetooth-incorrect06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 07:02:13" (1/1) ... [2021-08-21 19:02:13,113 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-21 19:02:13,118 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-21 19:02:13,138 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 19:02:13,145 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 19:02:13,170 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThreadWithAssert given in one single declaration [2021-08-21 19:02:13,170 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThreadWithAssert [2021-08-21 19:02:13,170 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThreadWithAssert [2021-08-21 19:02:13,170 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThread given in one single declaration [2021-08-21 19:02:13,170 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThread [2021-08-21 19:02:13,170 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThread [2021-08-21 19:02:13,171 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ServerThread given in one single declaration [2021-08-21 19:02:13,171 INFO L130 BoogieDeclarations]: Found specification of procedure ServerThread [2021-08-21 19:02:13,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ServerThread [2021-08-21 19:02:13,171 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-08-21 19:02:13,171 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-21 19:02:13,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-21 19:02:13,172 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 19:02:13,434 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-21 19:02:13,434 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-08-21 19:02:13,436 INFO L202 PluginConnector]: Adding new model bluetooth-incorrect06.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 07:02:13 BoogieIcfgContainer [2021-08-21 19:02:13,436 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-21 19:02:13,438 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-21 19:02:13,438 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-21 19:02:13,441 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-21 19:02:13,441 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-incorrect06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 21.08 07:02:13" (1/2) ... [2021-08-21 19:02:13,442 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3147d130 and model type bluetooth-incorrect06.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.08 07:02:13, skipping insertion in model container [2021-08-21 19:02:13,442 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-incorrect06.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.08 07:02:13" (2/2) ... [2021-08-21 19:02:13,443 INFO L111 eAbstractionObserver]: Analyzing ICFG bluetooth-incorrect06.bpl [2021-08-21 19:02:13,447 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-08-21 19:02:13,447 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-21 19:02:13,447 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-21 19:02:13,447 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-21 19:02:13,485 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-08-21 19:02:13,513 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-21 19:02:13,517 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 19:02:13,517 INFO L340 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2021-08-21 19:02:19,132 INFO L276 IsEmpty]: Start isEmpty. Operand has 73727 states, 61440 states have (on average 2.8722493489583334) internal successors, (176471), 73726 states have internal predecessors, (176471), 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 19:02:19,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-08-21 19:02:19,139 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 19:02:19,140 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 19:02:19,140 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2021-08-21 19:02:19,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 19:02:19,150 INFO L82 PathProgramCache]: Analyzing trace with hash 173096233, now seen corresponding path program 1 times [2021-08-21 19:02:19,155 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 19:02:19,156 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893064171] [2021-08-21 19:02:19,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 19:02:19,157 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 19:02:19,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 19:02:19,238 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 19:02:19,238 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 19:02:19,238 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893064171] [2021-08-21 19:02:19,239 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893064171] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 19:02:19,239 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 19:02:19,239 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-21 19:02:19,240 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860801866] [2021-08-21 19:02:19,242 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-21 19:02:19,242 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 19:02:19,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-21 19:02:19,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-21 19:02:19,341 INFO L87 Difference]: Start difference. First operand has 73727 states, 61440 states have (on average 2.8722493489583334) internal successors, (176471), 73726 states have internal predecessors, (176471), 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 19:02:20,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 19:02:20,314 INFO L93 Difference]: Finished difference Result 64171 states and 144898 transitions. [2021-08-21 19:02:20,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-21 19:02:20,315 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 19:02:20,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 19:02:20,786 INFO L225 Difference]: With dead ends: 64171 [2021-08-21 19:02:20,786 INFO L226 Difference]: Without dead ends: 38230 [2021-08-21 19:02:20,787 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-21 19:02:20,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38230 states. [2021-08-21 19:02:22,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38230 to 38230. [2021-08-21 19:02:22,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38230 states, 35841 states have (on average 3.2570240785692364) internal successors, (116735), 38229 states have internal predecessors, (116735), 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 19:02:22,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38230 states to 38230 states and 116735 transitions. [2021-08-21 19:02:22,725 INFO L78 Accepts]: Start accepts. Automaton has 38230 states and 116735 transitions. Word has length 9 [2021-08-21 19:02:22,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 19:02:22,725 INFO L470 AbstractCegarLoop]: Abstraction has 38230 states and 116735 transitions. [2021-08-21 19:02:22,725 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 19:02:22,725 INFO L276 IsEmpty]: Start isEmpty. Operand 38230 states and 116735 transitions. [2021-08-21 19:02:22,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-08-21 19:02:22,730 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 19:02:22,730 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 19:02:22,731 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-21 19:02:22,731 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2021-08-21 19:02:22,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 19:02:22,732 INFO L82 PathProgramCache]: Analyzing trace with hash 1639668583, now seen corresponding path program 1 times [2021-08-21 19:02:22,732 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 19:02:22,732 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316454009] [2021-08-21 19:02:22,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 19:02:22,732 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 19:02:22,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 19:02:22,746 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 19:02:22,746 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 19:02:22,746 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316454009] [2021-08-21 19:02:22,746 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316454009] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 19:02:22,746 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 19:02:22,747 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-21 19:02:22,747 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551281432] [2021-08-21 19:02:22,748 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-21 19:02:22,748 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 19:02:22,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-21 19:02:22,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-21 19:02:22,748 INFO L87 Difference]: Start difference. First operand 38230 states and 116735 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 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 19:02:23,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 19:02:23,278 INFO L93 Difference]: Finished difference Result 38230 states and 102854 transitions. [2021-08-21 19:02:23,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-21 19:02:23,279 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 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 19:02:23,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 19:02:23,417 INFO L225 Difference]: With dead ends: 38230 [2021-08-21 19:02:23,418 INFO L226 Difference]: Without dead ends: 27480 [2021-08-21 19:02:23,418 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-21 19:02:23,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27480 states. [2021-08-21 19:02:24,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27480 to 27480. [2021-08-21 19:02:24,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27480 states, 25091 states have (on average 2.793352197999283) internal successors, (70088), 27479 states have internal predecessors, (70088), 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 19:02:24,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27480 states to 27480 states and 70088 transitions. [2021-08-21 19:02:24,165 INFO L78 Accepts]: Start accepts. Automaton has 27480 states and 70088 transitions. Word has length 13 [2021-08-21 19:02:24,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 19:02:24,165 INFO L470 AbstractCegarLoop]: Abstraction has 27480 states and 70088 transitions. [2021-08-21 19:02:24,165 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 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 19:02:24,166 INFO L276 IsEmpty]: Start isEmpty. Operand 27480 states and 70088 transitions. [2021-08-21 19:02:24,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-08-21 19:02:24,168 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 19:02:24,168 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 19:02:24,168 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-21 19:02:24,168 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2021-08-21 19:02:24,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 19:02:24,169 INFO L82 PathProgramCache]: Analyzing trace with hash -651563097, now seen corresponding path program 2 times [2021-08-21 19:02:24,169 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 19:02:24,169 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572997347] [2021-08-21 19:02:24,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 19:02:24,169 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 19:02:24,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-21 19:02:24,217 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 19:02:24,217 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-21 19:02:24,218 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572997347] [2021-08-21 19:02:24,218 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572997347] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-21 19:02:24,218 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-21 19:02:24,218 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-21 19:02:24,218 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154512417] [2021-08-21 19:02:24,218 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-21 19:02:24,219 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-21 19:02:24,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-21 19:02:24,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-08-21 19:02:24,219 INFO L87 Difference]: Start difference. First operand 27480 states and 70088 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 19:02:24,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-21 19:02:24,824 INFO L93 Difference]: Finished difference Result 58897 states and 175676 transitions. [2021-08-21 19:02:24,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-21 19:02:24,825 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 19:02:24,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-21 19:02:25,089 INFO L225 Difference]: With dead ends: 58897 [2021-08-21 19:02:25,089 INFO L226 Difference]: Without dead ends: 57952 [2021-08-21 19:02:25,089 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 15.0ms TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-08-21 19:02:25,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57952 states. [2021-08-21 19:02:26,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57952 to 50913. [2021-08-21 19:02:26,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50913 states, 48524 states have (on average 3.41400131893496) internal successors, (165661), 50912 states have internal predecessors, (165661), 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 19:02:27,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50913 states to 50913 states and 165661 transitions. [2021-08-21 19:02:27,051 INFO L78 Accepts]: Start accepts. Automaton has 50913 states and 165661 transitions. Word has length 13 [2021-08-21 19:02:27,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-21 19:02:27,051 INFO L470 AbstractCegarLoop]: Abstraction has 50913 states and 165661 transitions. [2021-08-21 19:02:27,051 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 19:02:27,051 INFO L276 IsEmpty]: Start isEmpty. Operand 50913 states and 165661 transitions. [2021-08-21 19:02:27,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-08-21 19:02:27,054 INFO L504 BasicCegarLoop]: Found error trace [2021-08-21 19:02:27,057 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-21 19:02:27,057 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-21 19:02:27,058 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 5 more)] === [2021-08-21 19:02:27,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-21 19:02:27,059 INFO L82 PathProgramCache]: Analyzing trace with hash 35715273, now seen corresponding path program 3 times [2021-08-21 19:02:27,060 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-21 19:02:27,073 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344638883] [2021-08-21 19:02:27,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-21 19:02:27,073 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-21 19:02:27,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-21 19:02:27,079 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-21 19:02:27,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-21 19:02:27,102 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-21 19:02:27,103 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-08-21 19:02:27,104 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT [2021-08-21 19:02:27,109 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT [2021-08-21 19:02:27,110 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-08-21 19:02:27,110 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION [2021-08-21 19:02:27,111 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATION [2021-08-21 19:02:27,111 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3INUSE_VIOLATION [2021-08-21 19:02:27,111 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4INUSE_VIOLATION [2021-08-21 19:02:27,111 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5INUSE_VIOLATION [2021-08-21 19:02:27,111 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6INUSE_VIOLATION [2021-08-21 19:02:27,112 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-21 19:02:27,116 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-08-21 19:02:27,116 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-21 19:02:27,130 INFO L202 PluginConnector]: Adding new model bluetooth-incorrect06.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.08 07:02:27 BasicIcfg [2021-08-21 19:02:27,130 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-21 19:02:27,131 INFO L168 Benchmark]: Toolchain (without parser) took 14061.59 ms. Allocated memory was 237.0 MB in the beginning and 6.0 GB in the end (delta: 5.8 GB). Free memory was 217.3 MB in the beginning and 5.0 GB in the end (delta: -4.8 GB). Peak memory consumption was 981.4 MB. Max. memory is 8.0 GB. [2021-08-21 19:02:27,132 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.15 ms. Allocated memory is still 237.0 MB. Free memory is still 218.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-08-21 19:02:27,132 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.94 ms. Allocated memory is still 237.0 MB. Free memory was 217.1 MB in the beginning and 215.4 MB in the end (delta: 1.8 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-08-21 19:02:27,134 INFO L168 Benchmark]: Boogie Preprocessor took 10.65 ms. Allocated memory is still 237.0 MB. Free memory was 215.4 MB in the beginning and 214.3 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-08-21 19:02:27,136 INFO L168 Benchmark]: RCFGBuilder took 328.77 ms. Allocated memory is still 237.0 MB. Free memory was 214.3 MB in the beginning and 199.8 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2021-08-21 19:02:27,137 INFO L168 Benchmark]: TraceAbstraction took 13691.94 ms. Allocated memory was 237.0 MB in the beginning and 6.0 GB in the end (delta: 5.8 GB). Free memory was 199.3 MB in the beginning and 5.0 GB in the end (delta: -4.8 GB). Peak memory consumption was 962.5 MB. Max. memory is 8.0 GB. [2021-08-21 19:02:27,140 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 0.15 ms. Allocated memory is still 237.0 MB. Free memory is still 218.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 25.94 ms. Allocated memory is still 237.0 MB. Free memory was 217.1 MB in the beginning and 215.4 MB in the end (delta: 1.8 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 10.65 ms. Allocated memory is still 237.0 MB. Free memory was 215.4 MB in the beginning and 214.3 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 328.77 ms. Allocated memory is still 237.0 MB. Free memory was 214.3 MB in the beginning and 199.8 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 13691.94 ms. Allocated memory was 237.0 MB in the beginning and 6.0 GB in the end (delta: 5.8 GB). Free memory was 199.3 MB in the beginning and 5.0 GB in the end (delta: -4.8 GB). Peak memory consumption was 962.5 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: 784414, positive: 701647, positive conditional: 701647, positive unconditional: 0, negative: 82767, negative conditional: 82767, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 754383, positive: 701647, positive conditional: 0, positive unconditional: 701647, negative: 52736, negative conditional: 0, negative unconditional: 52736, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 668, positive: 606, positive conditional: 0, positive unconditional: 606, negative: 62, negative conditional: 0, negative unconditional: 62, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 668, positive: 557, positive conditional: 0, positive unconditional: 557, negative: 111, negative conditional: 0, negative unconditional: 111, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 111, positive: 49, positive conditional: 0, positive unconditional: 49, negative: 62, negative conditional: 0, negative unconditional: 62, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 340, positive: 191, positive conditional: 0, positive unconditional: 191, negative: 149, negative conditional: 0, negative unconditional: 149, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 754383, positive: 701041, positive conditional: 0, positive unconditional: 701041, negative: 52674, negative conditional: 0, negative unconditional: 52674, unknown: 668, unknown conditional: 0, unknown unconditional: 668] , Statistics on independence cache: Total cache size (in pairs): 668, Positive cache size: 606, Positive conditional cache size: 0, Positive unconditional cache size: 606, Negative cache size: 62, Negative conditional cache size: 0, Negative unconditional cache size: 62, Independence queries for same thread: 30031 - 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: 39]: 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] [L61] 2 assume !stoppingFlag; VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L83] 1 stoppingFlag := true; VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=true] [L93] 1 pendingIo := pendingIo - 1; [L94] COND TRUE 1 pendingIo == 0 [L95] 1 stoppingEvent := true; VAL [pendingIo=0, stopped=false, stoppingEvent=true, stoppingFlag=true] [L62] 2 pendingIo := pendingIo + 1; VAL [pendingIo=1, stopped=false, stoppingEvent=true, stoppingFlag=true] [L85] 1 assume stoppingEvent; VAL [pendingIo=1, stopped=false, stoppingEvent=true, stoppingFlag=true] [L86] 1 stopped := true; VAL [pendingIo=1, stopped=true, stoppingEvent=true, stoppingFlag=true] [L39] 2 assert !stopped; VAL [pendingIo=1, stopped=true, stoppingEvent=true, stoppingFlag=true] - 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: 25]: 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: 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: 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: 24]: 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 11 procedures, 68 locations, 9 error locations. Started 1 CEGAR loops. OverallTime: 13602.3ms, OverallIterations: 4, TraceHistogramMax: 1, EmptinessCheckTime: 268.3ms, AutomataDifference: 3085.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 5362.7ms, PartialOrderReductionTime: 5352.1ms, HoareTripleCheckerStatistics: 149 SDtfs, 118 SDslu, 104 SDs, 0 SdLazy, 59 SolverSat, 31 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 47.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 19.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=73727occurred 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: 4636.5ms AutomataMinimizationTime, 3 MinimizatonAttempts, 7039 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 5.3ms SsaConstructionTime, 19.0ms SatisfiabilityAnalysisTime, 79.1ms InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 79 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 19:02:27,166 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...