/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-DelaySleep-NoLbe-Lockstep.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth06-incorrect.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d310483fe8b4879eee5de19363f50e4b839cc4ec-d310483 [2021-06-24 19:01:00,266 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-24 19:01:00,268 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-24 19:01:00,299 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-24 19:01:00,299 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-24 19:01:00,302 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-24 19:01:00,305 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-24 19:01:00,310 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-24 19:01:00,312 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-24 19:01:00,315 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-24 19:01:00,316 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-24 19:01:00,317 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-24 19:01:00,317 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-24 19:01:00,318 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-24 19:01:00,320 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-24 19:01:00,321 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-24 19:01:00,323 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-24 19:01:00,324 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-24 19:01:00,326 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-24 19:01:00,330 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-24 19:01:00,331 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-24 19:01:00,332 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-24 19:01:00,333 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-24 19:01:00,334 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-24 19:01:00,339 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-24 19:01:00,346 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-24 19:01:00,346 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-24 19:01:00,347 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-24 19:01:00,348 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-DelaySleep-NoLbe-Lockstep.epf [2021-06-24 19:01:00,386 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-24 19:01:00,387 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-24 19:01:00,387 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-24 19:01:00,387 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-24 19:01:00,389 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-24 19:01:00,389 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-24 19:01:00,389 INFO L138 SettingsManager]: * Use SBE=true [2021-06-24 19:01:00,390 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-24 19:01:00,390 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-24 19:01:00,390 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-24 19:01:00,391 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-24 19:01:00,391 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-24 19:01:00,391 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-24 19:01:00,391 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-24 19:01:00,391 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-24 19:01:00,391 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-24 19:01:00,391 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-24 19:01:00,391 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-24 19:01:00,392 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-24 19:01:00,392 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-24 19:01:00,392 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-24 19:01:00,392 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-24 19:01:00,392 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-24 19:01:00,392 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-24 19:01:00,392 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-24 19:01:00,393 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-24 19:01:00,393 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-24 19:01:00,393 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-24 19:01:00,393 INFO L138 SettingsManager]: * DFS Order used in POR=PSEUDO_LOCKSTEP [2021-06-24 19:01:00,393 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-24 19:01:00,393 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-24 19:01:00,393 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-24 19:01:00,393 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-24 19:01:00,394 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-06-24 19:01:00,394 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-24 19:01:00,640 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-24 19:01:00,657 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-24 19:01:00,658 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-24 19:01:00,659 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-24 19:01:00,660 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-24 19:01:00,661 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth06-incorrect.bpl [2021-06-24 19:01:00,661 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth06-incorrect.bpl' [2021-06-24 19:01:00,686 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-24 19:01:00,688 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-24 19:01:00,688 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-24 19:01:00,689 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-24 19:01:00,689 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-24 19:01:00,698 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "bluetooth06-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 07:01:00" (1/1) ... [2021-06-24 19:01:00,704 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "bluetooth06-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 07:01:00" (1/1) ... [2021-06-24 19:01:00,716 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-24 19:01:00,717 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-24 19:01:00,717 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-24 19:01:00,717 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-24 19:01:00,723 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "bluetooth06-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 07:01:00" (1/1) ... [2021-06-24 19:01:00,723 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "bluetooth06-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 07:01:00" (1/1) ... [2021-06-24 19:01:00,724 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "bluetooth06-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 07:01:00" (1/1) ... [2021-06-24 19:01:00,724 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "bluetooth06-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 07:01:00" (1/1) ... [2021-06-24 19:01:00,726 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "bluetooth06-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 07:01:00" (1/1) ... [2021-06-24 19:01:00,728 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "bluetooth06-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 07:01:00" (1/1) ... [2021-06-24 19:01:00,729 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "bluetooth06-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 07:01:00" (1/1) ... [2021-06-24 19:01:00,730 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-24 19:01:00,731 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-24 19:01:00,732 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-24 19:01:00,732 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-24 19:01:00,733 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "bluetooth06-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 07:01:00" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-24 19:01:00,788 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThread given in one single declaration [2021-06-24 19:01:00,788 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThread [2021-06-24 19:01:00,788 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThread [2021-06-24 19:01:00,788 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ServerThread given in one single declaration [2021-06-24 19:01:00,788 INFO L130 BoogieDeclarations]: Found specification of procedure ServerThread [2021-06-24 19:01:00,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ServerThread [2021-06-24 19:01:00,789 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-24 19:01:00,789 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-24 19:01:00,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-24 19:01:00,790 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-24 19:01:00,941 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-24 19:01:00,941 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-06-24 19:01:00,943 INFO L202 PluginConnector]: Adding new model bluetooth06-incorrect.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 07:01:00 BoogieIcfgContainer [2021-06-24 19:01:00,943 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-24 19:01:00,944 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-24 19:01:00,944 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-24 19:01:00,946 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-24 19:01:00,946 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth06-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 07:01:00" (1/2) ... [2021-06-24 19:01:00,947 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fe2804b and model type bluetooth06-incorrect.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.06 07:01:00, skipping insertion in model container [2021-06-24 19:01:00,947 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth06-incorrect.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 07:01:00" (2/2) ... [2021-06-24 19:01:00,948 INFO L111 eAbstractionObserver]: Analyzing ICFG bluetooth06-incorrect.bpl [2021-06-24 19:01:00,951 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-24 19:01:00,951 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-24 19:01:00,951 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-24 19:01:00,952 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-24 19:01:01,003 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-24 19:01:01,018 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-06-24 19:01:01,075 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-24 19:01:01,075 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-24 19:01:01,075 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-24 19:01:01,075 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-24 19:01:01,076 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-24 19:01:01,076 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-24 19:01:01,076 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-24 19:01:01,076 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == DeviceThreadThread1of1ForFork6======== [2021-06-24 19:01:01,197 INFO L430 AbstractCegarLoop]: === Iteration 1 === [DeviceThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-06-24 19:01:01,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-24 19:01:01,204 INFO L82 PathProgramCache]: Analyzing trace with hash -1928759989, now seen corresponding path program 1 times [2021-06-24 19:01:01,212 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-24 19:01:01,212 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615379707] [2021-06-24 19:01:01,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-24 19:01:01,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-24 19:01:01,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-24 19:01:01,334 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-24 19:01:01,335 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615379707] [2021-06-24 19:01:01,335 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615379707] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-24 19:01:01,335 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-24 19:01:01,336 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-24 19:01:01,336 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526220990] [2021-06-24 19:01:01,344 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-24 19:01:01,345 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-24 19:01:01,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-24 19:01:01,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-24 19:01:01,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-24 19:01:01,360 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-24 19:01:01,361 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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) [2021-06-24 19:01:01,361 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-24 19:01:02,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 19:01:02,415 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-24 19:01:02,415 INFO L430 AbstractCegarLoop]: === Iteration 2 === [DeviceThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-06-24 19:01:02,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-24 19:01:02,416 INFO L82 PathProgramCache]: Analyzing trace with hash -123536031, now seen corresponding path program 1 times [2021-06-24 19:01:02,416 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-24 19:01:02,416 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249153898] [2021-06-24 19:01:02,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-24 19:01:02,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-24 19:01:02,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-24 19:01:02,454 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-24 19:01:02,454 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249153898] [2021-06-24 19:01:02,454 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249153898] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-24 19:01:02,454 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-24 19:01:02,454 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-24 19:01:02,454 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145123780] [2021-06-24 19:01:02,456 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-24 19:01:02,456 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-24 19:01:02,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-24 19:01:02,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-24 19:01:02,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-24 19:01:02,460 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-24 19:01:02,460 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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) [2021-06-24 19:01:02,460 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-24 19:01:02,460 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-24 19:01:06,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 19:01:06,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 19:01:06,182 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-24 19:01:06,182 INFO L430 AbstractCegarLoop]: === Iteration 3 === [DeviceThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-06-24 19:01:06,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-24 19:01:06,183 INFO L82 PathProgramCache]: Analyzing trace with hash 1587379651, now seen corresponding path program 1 times [2021-06-24 19:01:06,183 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-24 19:01:06,183 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488937547] [2021-06-24 19:01:06,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-24 19:01:06,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-24 19:01:06,342 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-24 19:01:06,343 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-24 19:01:06,343 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488937547] [2021-06-24 19:01:06,343 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488937547] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-24 19:01:06,343 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-24 19:01:06,343 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-24 19:01:06,343 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595533276] [2021-06-24 19:01:06,344 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-24 19:01:06,344 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-24 19:01:06,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-24 19:01:06,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=37, Unknown=0, NotChecked=0, Total=72 [2021-06-24 19:01:06,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-24 19:01:06,345 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-24 19:01:06,345 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 5.666666666666667) internal successors, (51), 8 states have internal predecessors, (51), 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) [2021-06-24 19:01:06,345 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-24 19:01:06,345 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-24 19:01:06,345 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-24 19:01:07,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 19:01:07,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 19:01:07,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-24 19:01:07,683 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-24 19:01:07,683 INFO L430 AbstractCegarLoop]: === Iteration 4 === [DeviceThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-06-24 19:01:07,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-24 19:01:07,683 INFO L82 PathProgramCache]: Analyzing trace with hash 52685963, now seen corresponding path program 2 times [2021-06-24 19:01:07,684 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-24 19:01:07,684 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195405864] [2021-06-24 19:01:07,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-24 19:01:07,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-24 19:01:07,697 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-24 19:01:07,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-24 19:01:07,721 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-24 19:01:07,739 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-06-24 19:01:07,739 INFO L605 BasicCegarLoop]: Counterexample might be feasible [2021-06-24 19:01:07,739 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-24 19:01:07,743 INFO L301 ceAbstractionStarter]: Result for error location DeviceThreadThread1of1ForFork6 was UNSAFE (1/7) [2021-06-24 19:01:07,745 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-24 19:01:07,763 INFO L202 PluginConnector]: Adding new model bluetooth06-incorrect.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.06 07:01:07 BasicIcfg [2021-06-24 19:01:07,763 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-24 19:01:07,764 INFO L168 Benchmark]: Toolchain (without parser) took 7076.02 ms. Allocated memory was 207.6 MB in the beginning and 977.3 MB in the end (delta: 769.7 MB). Free memory was 188.1 MB in the beginning and 602.2 MB in the end (delta: -414.1 MB). Peak memory consumption was 357.7 MB. Max. memory is 8.0 GB. [2021-06-24 19:01:07,764 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.11 ms. Allocated memory is still 207.6 MB. Free memory is still 189.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-06-24 19:01:07,764 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.96 ms. Allocated memory is still 207.6 MB. Free memory was 187.9 MB in the beginning and 186.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-06-24 19:01:07,765 INFO L168 Benchmark]: Boogie Preprocessor took 13.28 ms. Allocated memory is still 207.6 MB. Free memory was 186.2 MB in the beginning and 185.2 MB in the end (delta: 979.5 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-06-24 19:01:07,765 INFO L168 Benchmark]: RCFGBuilder took 211.47 ms. Allocated memory is still 207.6 MB. Free memory was 185.2 MB in the beginning and 172.7 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-06-24 19:01:07,765 INFO L168 Benchmark]: TraceAbstraction took 6818.84 ms. Allocated memory was 207.6 MB in the beginning and 977.3 MB in the end (delta: 769.7 MB). Free memory was 172.2 MB in the beginning and 602.2 MB in the end (delta: -430.0 MB). Peak memory consumption was 340.9 MB. Max. memory is 8.0 GB. [2021-06-24 19:01:07,767 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 0.11 ms. Allocated memory is still 207.6 MB. Free memory is still 189.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 27.96 ms. Allocated memory is still 207.6 MB. Free memory was 187.9 MB in the beginning and 186.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 13.28 ms. Allocated memory is still 207.6 MB. Free memory was 186.2 MB in the beginning and 185.2 MB in the end (delta: 979.5 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 211.47 ms. Allocated memory is still 207.6 MB. Free memory was 185.2 MB in the beginning and 172.7 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 6818.84 ms. Allocated memory was 207.6 MB in the beginning and 977.3 MB in the end (delta: 769.7 MB). Free memory was 172.2 MB in the beginning and 602.2 MB in the end (delta: -430.0 MB). Peak memory consumption was 340.9 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: 415725, positive: 390797, positive conditional: 390797, positive unconditional: 0, negative: 24928, negative conditional: 24928, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 396433, positive: 390797, positive conditional: 390797, positive unconditional: 0, negative: 5636, negative conditional: 5636, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 396433, positive: 389483, positive conditional: 0, positive unconditional: 389483, negative: 6950, negative conditional: 0, negative unconditional: 6950, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1125, positive: 1070, positive conditional: 0, positive unconditional: 1070, negative: 55, negative conditional: 0, negative unconditional: 55, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1125, positive: 1025, positive conditional: 0, positive unconditional: 1025, negative: 100, negative conditional: 0, negative unconditional: 100, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 100, positive: 45, positive conditional: 0, positive unconditional: 45, negative: 55, negative conditional: 0, negative unconditional: 55, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 189, positive: 112, positive conditional: 67, positive unconditional: 45, negative: 77, negative conditional: 22, negative unconditional: 55, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 499, positive: 266, positive conditional: 109, positive unconditional: 157, negative: 234, negative conditional: 43, negative unconditional: 191, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 396433, positive: 388413, positive conditional: 0, positive unconditional: 388413, negative: 6895, negative conditional: 0, negative unconditional: 6895, unknown: 1125, unknown conditional: 0, unknown unconditional: 1125] , Statistics on independence cache: Total cache size (in pairs): 1214, Positive cache size: 1137, Positive conditional cache size: 67, Positive unconditional cache size: 1070, Negative cache size: 77, Negative conditional cache size: 22, Negative unconditional cache size: 55, SemanticConditionEliminator.Independence Queries: [ total: 15563, positive: 1314, positive conditional: 1314, positive unconditional: 0, negative: 14249, negative conditional: 2200, negative unconditional: 12049, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 15563, positive: 1314, positive conditional: 1314, positive unconditional: 0, negative: 14249, negative conditional: 2200, negative unconditional: 12049, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 189, positive: 112, positive conditional: 67, positive unconditional: 45, negative: 77, negative conditional: 22, negative unconditional: 55, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 499, positive: 266, positive conditional: 109, positive unconditional: 157, negative: 234, negative conditional: 43, negative unconditional: 191, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 15563, positive: 1247, positive conditional: 1247, positive unconditional: 0, negative: 14227, negative conditional: 2178, negative unconditional: 12049, unknown: 89, unknown conditional: 89, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1214, Positive cache size: 1137, Positive conditional cache size: 67, Positive unconditional cache size: 1070, Negative cache size: 77, Negative conditional cache size: 22, Negative unconditional cache size: 55, Eliminated conditions: 12049, SemanticConditionEliminator.Independence Queries: [ total: 15563, positive: 1314, positive conditional: 1314, positive unconditional: 0, negative: 14249, negative conditional: 2200, negative unconditional: 12049, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 15563, positive: 1314, positive conditional: 1314, positive unconditional: 0, negative: 14249, negative conditional: 2200, negative unconditional: 12049, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 189, positive: 112, positive conditional: 67, positive unconditional: 45, negative: 77, negative conditional: 22, negative unconditional: 55, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 499, positive: 266, positive conditional: 109, positive unconditional: 157, negative: 234, negative conditional: 43, negative unconditional: 191, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 15563, positive: 1247, positive conditional: 1247, positive unconditional: 0, negative: 14227, negative conditional: 2178, negative unconditional: 12049, unknown: 89, unknown conditional: 89, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1214, Positive cache size: 1137, Positive conditional cache size: 67, Positive unconditional cache size: 1070, Negative cache size: 77, Negative conditional cache size: 22, Negative unconditional cache size: 55, Eliminated conditions: 12049, SemanticConditionEliminator.Independence Queries: [ total: 15563, positive: 1314, positive conditional: 1314, positive unconditional: 0, negative: 14249, negative conditional: 2200, negative unconditional: 12049, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 15563, positive: 1314, positive conditional: 1314, positive unconditional: 0, negative: 14249, negative conditional: 2200, negative unconditional: 12049, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 189, positive: 112, positive conditional: 67, positive unconditional: 45, negative: 77, negative conditional: 22, negative unconditional: 55, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 499, positive: 266, positive conditional: 109, positive unconditional: 157, negative: 234, negative conditional: 43, negative unconditional: 191, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 15563, positive: 1247, positive conditional: 1247, positive unconditional: 0, negative: 14227, negative conditional: 2178, negative unconditional: 12049, unknown: 89, unknown conditional: 89, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1214, Positive cache size: 1137, Positive conditional cache size: 67, Positive unconditional cache size: 1070, Negative cache size: 77, Negative conditional cache size: 22, Negative unconditional cache size: 55, Eliminated conditions: 12049 ], Maximal queried relation: 3, Independence queries for same thread: 19292 - CounterExampleResult [Line: 37]: assertion can be violated assertion can be violated We found a FailurePath: [L13] 0 pendingIo := 1; VAL [pendingIo=1] [L14] 0 stopped := false; VAL [pendingIo=1, stopped=false] [L15] 0 stoppingEvent := false; VAL [pendingIo=1, stopped=false, stoppingEvent=false] [L16] 0 stoppingFlag := false; VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L18] FORK 0 fork 0 ServerThread(); VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L19] FORK 0 fork 1 DeviceThread(); VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L47] 2 assume !stoppingFlag; VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L20] FORK 0 fork 2 DeviceThread(); VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L48] 2 pendingIo := pendingIo + 1; VAL [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=false] [L47] 3 assume !stoppingFlag; VAL [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=false] [L21] FORK 0 fork 3 DeviceThread(); VAL [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=false] [L37] 2 assert !stopped; VAL [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=false] [L48] 3 pendingIo := pendingIo + 1; VAL [pendingIo=3, stopped=false, stoppingEvent=false, stoppingFlag=false] [L47] 4 assume !stoppingFlag; VAL [pendingIo=3, stopped=false, stoppingEvent=false, stoppingFlag=false] [L22] FORK 0 fork 4 DeviceThread(); VAL [pendingIo=3, stopped=false, stoppingEvent=false, stoppingFlag=false] [L56] 2 pendingIo := pendingIo - 1; [L57] COND FALSE 2 !(pendingIo == 0) VAL [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=false] [L37] 3 assert !stopped; VAL [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=false] [L48] 4 pendingIo := pendingIo + 1; VAL [pendingIo=3, stopped=false, stoppingEvent=false, stoppingFlag=false] [L47] 5 assume !stoppingFlag; VAL [pendingIo=3, stopped=false, stoppingEvent=false, stoppingFlag=false] [L23] FORK 0 fork 5 DeviceThread(); VAL [pendingIo=3, stopped=false, stoppingEvent=false, stoppingFlag=false] [L47] 2 assume !stoppingFlag; VAL [pendingIo=3, stopped=false, stoppingEvent=false, stoppingFlag=false] [L56] 3 pendingIo := pendingIo - 1; [L57] COND FALSE 3 !(pendingIo == 0) VAL [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=false] [L37] 4 assert !stopped; VAL [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=false] [L48] 5 pendingIo := pendingIo + 1; VAL [pendingIo=3, stopped=false, stoppingEvent=false, stoppingFlag=false] [L47] 6 assume !stoppingFlag; VAL [pendingIo=3, stopped=false, stoppingEvent=false, stoppingFlag=false] [L24] FORK 0 fork 6 DeviceThread(); VAL [pendingIo=3, stopped=false, stoppingEvent=false, stoppingFlag=false] [L48] 2 pendingIo := pendingIo + 1; VAL [pendingIo=4, stopped=false, stoppingEvent=false, stoppingFlag=false] [L47] 3 assume !stoppingFlag; VAL [pendingIo=4, stopped=false, stoppingEvent=false, stoppingFlag=false] [L56] 4 pendingIo := pendingIo - 1; [L57] COND FALSE 4 !(pendingIo == 0) VAL [pendingIo=3, stopped=false, stoppingEvent=false, stoppingFlag=false] [L37] 5 assert !stopped; VAL [pendingIo=3, stopped=false, stoppingEvent=false, stoppingFlag=false] [L48] 6 pendingIo := pendingIo + 1; VAL [pendingIo=4, stopped=false, stoppingEvent=false, stoppingFlag=false] [L47] 7 assume !stoppingFlag; VAL [pendingIo=4, stopped=false, stoppingEvent=false, stoppingFlag=false] [L69] 1 stoppingFlag := true; VAL [pendingIo=4, stopped=false, stoppingEvent=false, stoppingFlag=true] [L37] 2 assert !stopped; VAL [pendingIo=4, stopped=false, stoppingEvent=false, stoppingFlag=true] [L48] 3 pendingIo := pendingIo + 1; VAL [pendingIo=5, stopped=false, stoppingEvent=false, stoppingFlag=true] [L56] 5 pendingIo := pendingIo - 1; [L57] COND FALSE 5 !(pendingIo == 0) VAL [pendingIo=4, stopped=false, stoppingEvent=false, stoppingFlag=true] [L37] 6 assert !stopped; VAL [pendingIo=4, stopped=false, stoppingEvent=false, stoppingFlag=true] [L79] 1 pendingIo := pendingIo - 1; [L80] COND FALSE 1 !(pendingIo == 0) VAL [pendingIo=3, stopped=false, stoppingEvent=false, stoppingFlag=true] [L56] 2 pendingIo := pendingIo - 1; [L57] COND FALSE 2 !(pendingIo == 0) VAL [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=true] [L37] 3 assert !stopped; VAL [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=true] [L56] 6 pendingIo := pendingIo - 1; [L57] COND FALSE 6 !(pendingIo == 0) VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=true] [L56] 3 pendingIo := pendingIo - 1; [L57] COND TRUE 3 pendingIo == 0 [L58] 3 stoppingEvent := true; VAL [pendingIo=0, stopped=false, stoppingEvent=true, stoppingFlag=true] [L48] 7 pendingIo := pendingIo + 1; VAL [pendingIo=1, stopped=false, stoppingEvent=true, stoppingFlag=true] [L71] 1 assume stoppingEvent; VAL [pendingIo=1, stopped=false, stoppingEvent=true, stoppingFlag=true] [L72] 1 stopped := true; VAL [pendingIo=1, stopped=true, stoppingEvent=true, stoppingFlag=true] [L37] 7 assert !stopped; VAL [pendingIo=1, stopped=true, stoppingEvent=true, stoppingFlag=true] - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: DeviceThreadThread1of1ForFork6 with 1 thread instances CFG has 10 procedures, 74 locations, 14 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 6713.7ms, OverallIterations: 4, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 9.3ms, PartialOrderReductionTime: 6224.6ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 14, 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: 19.0ms SsaConstructionTime, 46.2ms SatisfiabilityAnalysisTime, 218.7ms InterpolantComputationTime, 168 NumberOfCodeBlocks, 168 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 114 ConstructedInterpolants, 0 QuantifiedInterpolants, 339 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 13/13 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! Received shutdown request...