/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-Symm.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-incorrect05.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-87fd7473a0bda1db0ad7f77f2116346063730f21-87fd747 [2021-08-22 00:11:15,750 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-22 00:11:15,751 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-22 00:11:15,776 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-08-22 00:11:15,821 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-Symm.epf [2021-08-22 00:11:15,847 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-22 00:11:15,847 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-22 00:11:15,847 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-22 00:11:15,847 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-22 00:11:15,849 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-22 00:11:15,849 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-22 00:11:15,849 INFO L138 SettingsManager]: * Use SBE=true [2021-08-22 00:11:15,850 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-22 00:11:15,850 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-22 00:11:15,850 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-22 00:11:15,850 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-22 00:11:15,851 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-22 00:11:15,851 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-22 00:11:15,851 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-22 00:11:15,851 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-22 00:11:15,851 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-22 00:11:15,851 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-22 00:11:15,851 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-22 00:11:15,851 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-22 00:11:15,851 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-22 00:11:15,852 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-22 00:11:15,852 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-22 00:11:15,852 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-22 00:11:15,852 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-22 00:11:15,852 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-22 00:11:15,852 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-22 00:11:15,852 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-22 00:11:15,852 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-22 00:11:15,852 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-22 00:11:15,852 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-22 00:11:15,853 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-08-22 00:11:15,853 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-22 00:11:15,853 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2021-08-22 00:11:15,853 INFO L138 SettingsManager]: * Limit POR to symmetric independence in concurrent analysis=true [2021-08-22 00:11:15,853 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-22 00:11:16,111 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-22 00:11:16,134 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-22 00:11:16,136 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-22 00:11:16,137 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-08-22 00:11:16,138 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-08-22 00:11:16,139 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-incorrect05.bpl [2021-08-22 00:11:16,139 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-incorrect05.bpl' [2021-08-22 00:11:16,158 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-22 00:11:16,159 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-08-22 00:11:16,160 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-22 00:11:16,160 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-22 00:11:16,160 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-22 00:11:16,168 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "bluetooth-incorrect05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.08 12:11:16" (1/1) ... [2021-08-22 00:11:16,173 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "bluetooth-incorrect05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.08 12:11:16" (1/1) ... [2021-08-22 00:11:16,184 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-22 00:11:16,185 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-22 00:11:16,185 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-22 00:11:16,185 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-22 00:11:16,190 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "bluetooth-incorrect05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.08 12:11:16" (1/1) ... [2021-08-22 00:11:16,190 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "bluetooth-incorrect05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.08 12:11:16" (1/1) ... [2021-08-22 00:11:16,191 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "bluetooth-incorrect05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.08 12:11:16" (1/1) ... [2021-08-22 00:11:16,191 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "bluetooth-incorrect05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.08 12:11:16" (1/1) ... [2021-08-22 00:11:16,192 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "bluetooth-incorrect05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.08 12:11:16" (1/1) ... [2021-08-22 00:11:16,194 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "bluetooth-incorrect05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.08 12:11:16" (1/1) ... [2021-08-22 00:11:16,194 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "bluetooth-incorrect05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.08 12:11:16" (1/1) ... [2021-08-22 00:11:16,195 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-22 00:11:16,195 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-22 00:11:16,195 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-22 00:11:16,195 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-22 00:11:16,196 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "bluetooth-incorrect05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.08 12:11:16" (1/1) ... [2021-08-22 00:11:16,201 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-22 00:11:16,206 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-22 00:11:16,217 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 00:11:16,223 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 00:11:16,243 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThreadWithAssert given in one single declaration [2021-08-22 00:11:16,243 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThreadWithAssert [2021-08-22 00:11:16,243 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThreadWithAssert [2021-08-22 00:11:16,244 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThread given in one single declaration [2021-08-22 00:11:16,244 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThread [2021-08-22 00:11:16,244 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThread [2021-08-22 00:11:16,244 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ServerThread given in one single declaration [2021-08-22 00:11:16,244 INFO L130 BoogieDeclarations]: Found specification of procedure ServerThread [2021-08-22 00:11:16,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ServerThread [2021-08-22 00:11:16,244 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-08-22 00:11:16,244 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-22 00:11:16,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-22 00:11:16,245 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 00:11:16,469 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-22 00:11:16,470 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-08-22 00:11:16,471 INFO L202 PluginConnector]: Adding new model bluetooth-incorrect05.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 12:11:16 BoogieIcfgContainer [2021-08-22 00:11:16,471 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-22 00:11:16,472 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-22 00:11:16,472 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-22 00:11:16,474 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-22 00:11:16,474 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-incorrect05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.08 12:11:16" (1/2) ... [2021-08-22 00:11:16,475 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d4d33fa and model type bluetooth-incorrect05.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 12:11:16, skipping insertion in model container [2021-08-22 00:11:16,475 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-incorrect05.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 12:11:16" (2/2) ... [2021-08-22 00:11:16,476 INFO L111 eAbstractionObserver]: Analyzing ICFG bluetooth-incorrect05.bpl [2021-08-22 00:11:16,479 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-08-22 00:11:16,479 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-22 00:11:16,479 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-22 00:11:16,479 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-22 00:11:16,506 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-08-22 00:11:16,534 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-08-22 00:11:16,534 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-22 00:11:16,535 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 00:11:16,536 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 00:11:16,564 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-22 00:11:16,568 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 00:11:16,568 INFO L340 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-08-22 00:11:16,618 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2021-08-22 00:11:16,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-22 00:11:16,624 INFO L82 PathProgramCache]: Analyzing trace with hash -752326333, now seen corresponding path program 1 times [2021-08-22 00:11:16,629 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-22 00:11:16,630 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916021132] [2021-08-22 00:11:16,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-22 00:11:16,630 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-22 00:11:16,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-22 00:11:16,724 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 00:11:16,724 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-22 00:11:16,725 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916021132] [2021-08-22 00:11:16,725 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916021132] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-22 00:11:16,725 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-22 00:11:16,725 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-22 00:11:16,726 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535032571] [2021-08-22 00:11:16,730 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-22 00:11:16,730 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-22 00:11:16,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-22 00:11:16,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-22 00:11:16,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-22 00:11:16,743 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-22 00:11:16,744 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) [2021-08-22 00:11:16,744 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-22 00:11:16,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-22 00:11:16,941 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-22 00:11:16,942 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2021-08-22 00:11:16,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-22 00:11:16,942 INFO L82 PathProgramCache]: Analyzing trace with hash -1998065409, now seen corresponding path program 1 times [2021-08-22 00:11:16,942 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-22 00:11:16,942 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917506721] [2021-08-22 00:11:16,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-22 00:11:16,943 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-22 00:11:16,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-22 00:11:17,011 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2021-08-22 00:11:17,011 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-22 00:11:17,011 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917506721] [2021-08-22 00:11:17,011 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917506721] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-22 00:11:17,011 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-22 00:11:17,012 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-22 00:11:17,012 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510310019] [2021-08-22 00:11:17,013 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-22 00:11:17,013 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-22 00:11:17,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-22 00:11:17,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-22 00:11:17,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-22 00:11:17,014 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-22 00:11:17,014 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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 00:11:17,014 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-22 00:11:17,014 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-22 00:11:17,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-22 00:11:17,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-22 00:11:17,045 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-22 00:11:17,045 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2021-08-22 00:11:17,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-22 00:11:17,045 INFO L82 PathProgramCache]: Analyzing trace with hash -1490035874, now seen corresponding path program 1 times [2021-08-22 00:11:17,045 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-22 00:11:17,045 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128405239] [2021-08-22 00:11:17,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-22 00:11:17,046 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-22 00:11:17,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-22 00:11:17,377 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 17 proven. 12 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-08-22 00:11:17,377 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-22 00:11:17,377 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128405239] [2021-08-22 00:11:17,377 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128405239] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-22 00:11:17,378 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1432165262] [2021-08-22 00:11:17,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-22 00:11:17,378 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-22 00:11:17,378 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-22 00:11:17,388 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-22 00:11:17,389 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-08-22 00:11:17,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-22 00:11:17,446 WARN L261 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 74 conjunts are in the unsatisfiable core [2021-08-22 00:11:17,450 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-22 00:11:18,039 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 1 proven. 28 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-08-22 00:11:18,040 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1432165262] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-22 00:11:18,040 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-22 00:11:18,040 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2021-08-22 00:11:18,041 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500712247] [2021-08-22 00:11:18,042 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-08-22 00:11:18,042 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-22 00:11:18,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-08-22 00:11:18,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2021-08-22 00:11:18,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-22 00:11:18,045 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-22 00:11:18,045 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 6.0) internal successors, (90), 14 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-22 00:11:18,045 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-22 00:11:18,045 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-08-22 00:11:18,045 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-22 00:11:19,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-22 00:11:19,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-22 00:11:19,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-22 00:11:19,058 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-08-22 00:11:19,256 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-08-22 00:11:19,257 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2021-08-22 00:11:19,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-22 00:11:19,257 INFO L82 PathProgramCache]: Analyzing trace with hash 1859223735, now seen corresponding path program 1 times [2021-08-22 00:11:19,258 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-22 00:11:19,258 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113146804] [2021-08-22 00:11:19,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-22 00:11:19,258 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-22 00:11:19,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-22 00:11:19,268 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-22 00:11:19,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-22 00:11:19,283 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-22 00:11:19,283 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-08-22 00:11:19,284 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT [2021-08-22 00:11:19,285 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT [2021-08-22 00:11:19,285 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-08-22 00:11:19,285 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION [2021-08-22 00:11:19,285 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATION [2021-08-22 00:11:19,285 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3INUSE_VIOLATION [2021-08-22 00:11:19,285 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4INUSE_VIOLATION [2021-08-22 00:11:19,285 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5INUSE_VIOLATION [2021-08-22 00:11:19,286 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-22 00:11:19,291 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-08-22 00:11:19,291 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-22 00:11:19,314 INFO L202 PluginConnector]: Adding new model bluetooth-incorrect05.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 12:11:19 BasicIcfg [2021-08-22 00:11:19,314 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-22 00:11:19,315 INFO L168 Benchmark]: Toolchain (without parser) took 3155.07 ms. Allocated memory was 188.7 MB in the beginning and 233.8 MB in the end (delta: 45.1 MB). Free memory was 168.7 MB in the beginning and 94.8 MB in the end (delta: 73.9 MB). Peak memory consumption was 121.2 MB. Max. memory is 8.0 GB. [2021-08-22 00:11:19,316 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.13 ms. Allocated memory is still 188.7 MB. Free memory is still 169.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-08-22 00:11:19,318 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.90 ms. Allocated memory is still 188.7 MB. Free memory was 168.7 MB in the beginning and 166.8 MB in the end (delta: 1.9 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-08-22 00:11:19,319 INFO L168 Benchmark]: Boogie Preprocessor took 9.86 ms. Allocated memory is still 188.7 MB. Free memory was 166.8 MB in the beginning and 165.9 MB in the end (delta: 943.3 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-08-22 00:11:19,319 INFO L168 Benchmark]: RCFGBuilder took 276.21 ms. Allocated memory is still 188.7 MB. Free memory was 165.9 MB in the beginning and 151.4 MB in the end (delta: 14.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2021-08-22 00:11:19,319 INFO L168 Benchmark]: TraceAbstraction took 2841.64 ms. Allocated memory was 188.7 MB in the beginning and 233.8 MB in the end (delta: 45.1 MB). Free memory was 150.9 MB in the beginning and 94.8 MB in the end (delta: 56.1 MB). Peak memory consumption was 102.3 MB. Max. memory is 8.0 GB. [2021-08-22 00:11:19,321 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 188.7 MB. Free memory is still 169.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 23.90 ms. Allocated memory is still 188.7 MB. Free memory was 168.7 MB in the beginning and 166.8 MB in the end (delta: 1.9 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 9.86 ms. Allocated memory is still 188.7 MB. Free memory was 166.8 MB in the beginning and 165.9 MB in the end (delta: 943.3 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 276.21 ms. Allocated memory is still 188.7 MB. Free memory was 165.9 MB in the beginning and 151.4 MB in the end (delta: 14.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2841.64 ms. Allocated memory was 188.7 MB in the beginning and 233.8 MB in the end (delta: 45.1 MB). Free memory was 150.9 MB in the beginning and 94.8 MB in the end (delta: 56.1 MB). Peak memory consumption was 102.3 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: 84696, positive: 78763, positive conditional: 78763, positive unconditional: 0, negative: 5933, negative conditional: 5933, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 82431, positive: 78763, positive conditional: 78763, positive unconditional: 0, negative: 3668, negative conditional: 3668, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 82431, positive: 78763, positive conditional: 78763, positive unconditional: 0, negative: 3668, negative conditional: 3668, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 89998, positive: 78763, positive conditional: 78744, positive unconditional: 19, negative: 11235, negative conditional: 7567, negative unconditional: 3668, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 89998, positive: 78763, positive conditional: 54432, positive unconditional: 24331, negative: 11235, negative conditional: 490, negative unconditional: 10745, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 89998, positive: 78763, positive conditional: 54432, positive unconditional: 24331, negative: 11235, negative conditional: 490, negative unconditional: 10745, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 672, positive: 636, positive conditional: 405, positive unconditional: 231, negative: 36, negative conditional: 8, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 672, positive: 465, positive conditional: 0, positive unconditional: 465, negative: 207, negative conditional: 0, negative unconditional: 207, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 207, positive: 171, positive conditional: 158, positive unconditional: 13, negative: 36, negative conditional: 8, negative unconditional: 28, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 511, positive: 423, positive conditional: 361, positive unconditional: 62, negative: 87, negative conditional: 9, negative unconditional: 79, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 89998, positive: 78127, positive conditional: 54027, positive unconditional: 24100, negative: 11199, negative conditional: 482, negative unconditional: 10717, unknown: 672, unknown conditional: 413, unknown unconditional: 259] , Statistics on independence cache: Total cache size (in pairs): 672, Positive cache size: 636, Positive conditional cache size: 405, Positive unconditional cache size: 231, Negative cache size: 36, Negative conditional cache size: 8, Negative unconditional cache size: 28, Eliminated conditions: 31389, Maximal queried relation: 3, Independence queries for same thread: 2265 - 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: 38]: 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] [L60] 2 assume !stoppingFlag; VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L22] FORK 0 fork 2 DeviceThread(); VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L23] FORK 0 fork 3 DeviceThread(); VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L24] FORK 0 fork 4 DeviceThread(); VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L25] FORK 0 fork 5 DeviceThread(); VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L60] 5 assume !stoppingFlag; VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L60] 6 assume !stoppingFlag; VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L61] 6 pendingIo := pendingIo + 1; VAL [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=false] [L69] 6 pendingIo := pendingIo - 1; [L70] COND FALSE 6 !(pendingIo == 0) VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L60] 3 assume !stoppingFlag; VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L60] 4 assume !stoppingFlag; VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L61] 4 pendingIo := pendingIo + 1; VAL [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=false] [L69] 4 pendingIo := pendingIo - 1; [L70] COND FALSE 4 !(pendingIo == 0) VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L82] 1 stoppingFlag := true; VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=true] [L92] 1 pendingIo := pendingIo - 1; [L93] COND TRUE 1 pendingIo == 0 [L94] 1 stoppingEvent := true; VAL [pendingIo=0, stopped=false, stoppingEvent=true, stoppingFlag=true] [L61] 2 pendingIo := pendingIo + 1; VAL [pendingIo=1, stopped=false, stoppingEvent=true, stoppingFlag=true] [L61] 5 pendingIo := pendingIo + 1; VAL [pendingIo=2, stopped=false, stoppingEvent=true, stoppingFlag=true] [L69] 5 pendingIo := pendingIo - 1; [L70] COND FALSE 5 !(pendingIo == 0) VAL [pendingIo=1, stopped=false, stoppingEvent=true, stoppingFlag=true] [L61] 3 pendingIo := pendingIo + 1; VAL [pendingIo=2, stopped=false, stoppingEvent=true, stoppingFlag=true] [L69] 3 pendingIo := pendingIo - 1; [L70] COND FALSE 3 !(pendingIo == 0) VAL [pendingIo=1, stopped=false, stoppingEvent=true, stoppingFlag=true] [L84] 1 assume stoppingEvent; VAL [pendingIo=1, stopped=false, stoppingEvent=true, stoppingFlag=true] [L85] 1 stopped := true; VAL [pendingIo=1, stopped=true, stoppingEvent=true, stoppingFlag=true] [L38] 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: 21]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 22]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 19]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 23]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 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. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 10 procedures, 62 locations, 8 error locations. Started 1 CEGAR loops. OverallTime: 2757.5ms, OverallIterations: 4, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 10.0ms, PartialOrderReductionTime: 1261.6ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 17, 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: 15.4ms SsaConstructionTime, 91.4ms SatisfiabilityAnalysisTime, 964.9ms InterpolantComputationTime, 235 NumberOfCodeBlocks, 235 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 197 ConstructedInterpolants, 0 QuantifiedInterpolants, 766 SizeOfPredicates, 1 NumberOfNonLiveVariables, 113 ConjunctsInSsa, 74 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 139/179 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 00:11:19,345 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 00:11:19,545 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...