/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-NewStatesSleepPersistentFixedOrder-NoLbe-Random42.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth05-incorrect.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d310483fe8b4879eee5de19363f50e4b839cc4ec-d310483 [2021-06-24 21:25:28,071 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-24 21:25:28,073 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-24 21:25:28,104 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-24 21:25:28,126 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-24 21:25:28,127 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-24 21:25:28,128 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-24 21:25:28,129 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-24 21:25:28,131 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-24 21:25:28,132 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-24 21:25:28,133 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-24 21:25:28,137 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-24 21:25:28,139 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-24 21:25:28,140 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-24 21:25:28,141 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-24 21:25:28,143 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-24 21:25:28,147 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-24 21:25:28,163 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-24 21:25:28,163 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-24 21:25:28,164 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-24 21:25:28,167 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-NewStatesSleepPersistentFixedOrder-NoLbe-Random42.epf [2021-06-24 21:25:28,194 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-24 21:25:28,194 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-24 21:25:28,194 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-24 21:25:28,194 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-24 21:25:28,196 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-24 21:25:28,196 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-24 21:25:28,197 INFO L138 SettingsManager]: * Use SBE=true [2021-06-24 21:25:28,197 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-24 21:25:28,197 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-24 21:25:28,197 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-24 21:25:28,198 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-24 21:25:28,198 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-24 21:25:28,198 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-24 21:25:28,198 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-24 21:25:28,198 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-24 21:25:28,198 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-24 21:25:28,198 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-24 21:25:28,198 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-24 21:25:28,199 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-24 21:25:28,199 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-24 21:25:28,199 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-24 21:25:28,199 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-24 21:25:28,199 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-24 21:25:28,199 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-24 21:25:28,199 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-24 21:25:28,199 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-24 21:25:28,199 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-24 21:25:28,200 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-24 21:25:28,200 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-06-24 21:25:28,200 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-24 21:25:28,200 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-24 21:25:28,200 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-24 21:25:28,200 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-24 21:25:28,200 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-06-24 21:25:28,200 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-06-24 21:25:28,201 INFO L138 SettingsManager]: * Random seed used by POR DFS order=42 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-24 21:25:28,444 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-24 21:25:28,466 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-24 21:25:28,467 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-24 21:25:28,468 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-24 21:25:28,485 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-24 21:25:28,486 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth05-incorrect.bpl [2021-06-24 21:25:28,486 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth05-incorrect.bpl' [2021-06-24 21:25:28,504 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-24 21:25:28,506 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-24 21:25:28,508 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-24 21:25:28,508 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-24 21:25:28,508 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-24 21:25:28,517 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "bluetooth05-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 09:25:28" (1/1) ... [2021-06-24 21:25:28,523 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "bluetooth05-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 09:25:28" (1/1) ... [2021-06-24 21:25:28,534 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-24 21:25:28,535 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-24 21:25:28,535 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-24 21:25:28,535 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-24 21:25:28,540 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "bluetooth05-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 09:25:28" (1/1) ... [2021-06-24 21:25:28,541 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "bluetooth05-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 09:25:28" (1/1) ... [2021-06-24 21:25:28,542 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "bluetooth05-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 09:25:28" (1/1) ... [2021-06-24 21:25:28,542 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "bluetooth05-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 09:25:28" (1/1) ... [2021-06-24 21:25:28,544 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "bluetooth05-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 09:25:28" (1/1) ... [2021-06-24 21:25:28,547 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "bluetooth05-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 09:25:28" (1/1) ... [2021-06-24 21:25:28,547 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "bluetooth05-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 09:25:28" (1/1) ... [2021-06-24 21:25:28,548 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-24 21:25:28,549 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-24 21:25:28,549 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-24 21:25:28,549 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-24 21:25:28,550 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "bluetooth05-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 09:25:28" (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 21:25:28,619 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThread given in one single declaration [2021-06-24 21:25:28,619 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThread [2021-06-24 21:25:28,619 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThread [2021-06-24 21:25:28,620 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ServerThread given in one single declaration [2021-06-24 21:25:28,620 INFO L130 BoogieDeclarations]: Found specification of procedure ServerThread [2021-06-24 21:25:28,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ServerThread [2021-06-24 21:25:28,620 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-24 21:25:28,621 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-24 21:25:28,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-24 21:25:28,622 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 21:25:28,800 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-24 21:25:28,800 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-06-24 21:25:28,812 INFO L202 PluginConnector]: Adding new model bluetooth05-incorrect.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 09:25:28 BoogieIcfgContainer [2021-06-24 21:25:28,812 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-24 21:25:28,813 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-24 21:25:28,814 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-24 21:25:28,815 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-24 21:25:28,816 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth05-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 09:25:28" (1/2) ... [2021-06-24 21:25:28,816 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c2d369e and model type bluetooth05-incorrect.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.06 09:25:28, skipping insertion in model container [2021-06-24 21:25:28,816 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth05-incorrect.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 09:25:28" (2/2) ... [2021-06-24 21:25:28,817 INFO L111 eAbstractionObserver]: Analyzing ICFG bluetooth05-incorrect.bpl [2021-06-24 21:25:28,821 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-24 21:25:28,821 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-24 21:25:28,821 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-24 21:25:28,821 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-24 21:25:28,854 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-24 21:25:28,885 INFO L255 AbstractCegarLoop]: Starting to check reachability of 6 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 21:25:28,924 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-24 21:25:28,925 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-24 21:25:28,925 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-24 21:25:28,928 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-24 21:25:28,928 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-24 21:25:28,928 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-24 21:25:28,928 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-24 21:25:28,928 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-24 21:25:55,204 INFO L301 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE (1/6) [2021-06-24 21:25:55,205 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 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-06-24 21:25:55,383 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-24 21:25:55,384 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-24 21:25:55,384 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-24 21:25:55,384 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-24 21:25:55,384 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-24 21:25:55,384 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-24 21:25:55,384 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-24 21:25:55,384 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == DeviceThreadThread1of1ForFork4======== [2021-06-24 21:25:55,442 INFO L430 AbstractCegarLoop]: === Iteration 1 === [DeviceThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-06-24 21:25:55,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-24 21:25:55,445 INFO L82 PathProgramCache]: Analyzing trace with hash -1797281343, now seen corresponding path program 1 times [2021-06-24 21:25:55,451 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-24 21:25:55,451 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395144749] [2021-06-24 21:25:55,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-24 21:25:55,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-24 21:25:55,527 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 21:25:55,528 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-24 21:25:55,528 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395144749] [2021-06-24 21:25:55,528 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395144749] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-24 21:25:55,528 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-24 21:25:55,528 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-24 21:25:55,529 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542276808] [2021-06-24 21:25:55,532 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-24 21:25:55,532 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-24 21:25:55,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-24 21:25:55,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-24 21:25:55,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-24 21:25:55,542 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-24 21:25:55,542 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 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 21:25:55,542 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-24 21:25:55,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 21:25:55,655 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-24 21:25:55,655 INFO L430 AbstractCegarLoop]: === Iteration 2 === [DeviceThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-06-24 21:25:55,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-24 21:25:55,656 INFO L82 PathProgramCache]: Analyzing trace with hash -102664397, now seen corresponding path program 1 times [2021-06-24 21:25:55,656 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-24 21:25:55,657 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009619788] [2021-06-24 21:25:55,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-24 21:25:55,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-24 21:25:55,689 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 21:25:55,689 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-24 21:25:55,689 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009619788] [2021-06-24 21:25:55,690 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009619788] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-24 21:25:55,690 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-24 21:25:55,690 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-24 21:25:55,690 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529908528] [2021-06-24 21:25:55,691 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-24 21:25:55,691 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-24 21:25:55,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-24 21:25:55,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-24 21:25:55,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-24 21:25:55,692 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-24 21:25:55,692 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 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 21:25:55,692 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-24 21:25:55,692 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-24 21:25:55,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 21:25:55,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 21:25:55,815 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-24 21:25:55,815 INFO L430 AbstractCegarLoop]: === Iteration 3 === [DeviceThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-06-24 21:25:55,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-24 21:25:55,816 INFO L82 PathProgramCache]: Analyzing trace with hash -1082766687, now seen corresponding path program 1 times [2021-06-24 21:25:55,816 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-24 21:25:55,816 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184948328] [2021-06-24 21:25:55,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-24 21:25:55,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-24 21:25:55,879 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-24 21:25:55,882 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-24 21:25:55,882 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184948328] [2021-06-24 21:25:55,882 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184948328] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-24 21:25:55,882 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-24 21:25:55,882 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-24 21:25:55,882 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953420916] [2021-06-24 21:25:55,883 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-24 21:25:55,883 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-24 21:25:55,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-24 21:25:55,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2021-06-24 21:25:55,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-24 21:25:55,884 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-24 21:25:55,884 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 6 states have internal predecessors, (29), 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 21:25:55,884 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-24 21:25:55,885 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-24 21:25:55,885 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-24 21:25:56,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 21:25:56,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 21:25:56,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-24 21:25:56,006 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-24 21:25:56,006 INFO L430 AbstractCegarLoop]: === Iteration 4 === [DeviceThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-06-24 21:25:56,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-24 21:25:56,006 INFO L82 PathProgramCache]: Analyzing trace with hash -864971097, now seen corresponding path program 1 times [2021-06-24 21:25:56,006 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-24 21:25:56,006 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848426208] [2021-06-24 21:25:56,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-24 21:25:56,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-24 21:25:56,010 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-24 21:25:56,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-24 21:25:56,013 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-24 21:25:56,088 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-06-24 21:25:56,088 INFO L605 BasicCegarLoop]: Counterexample might be feasible [2021-06-24 21:25:56,088 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-24 21:25:56,091 INFO L301 ceAbstractionStarter]: Result for error location DeviceThreadThread1of1ForFork4 was UNSAFE (2/6) [2021-06-24 21:25:56,092 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-24 21:25:56,102 INFO L202 PluginConnector]: Adding new model bluetooth05-incorrect.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.06 09:25:56 BasicIcfg [2021-06-24 21:25:56,103 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-24 21:25:56,103 INFO L168 Benchmark]: Toolchain (without parser) took 27597.58 ms. Allocated memory was 188.7 MB in the beginning and 2.7 GB in the end (delta: 2.5 GB). Free memory was 168.0 MB in the beginning and 2.5 GB in the end (delta: -2.4 GB). Peak memory consumption was 495.8 MB. Max. memory is 8.0 GB. [2021-06-24 21:25:56,103 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.10 ms. Allocated memory is still 188.7 MB. Free memory is still 169.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-06-24 21:25:56,104 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.47 ms. Allocated memory is still 188.7 MB. Free memory was 167.9 MB in the beginning and 166.1 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-06-24 21:25:56,104 INFO L168 Benchmark]: Boogie Preprocessor took 13.05 ms. Allocated memory is still 188.7 MB. Free memory was 166.1 MB in the beginning and 165.2 MB in the end (delta: 868.7 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-06-24 21:25:56,110 INFO L168 Benchmark]: RCFGBuilder took 263.23 ms. Allocated memory is still 188.7 MB. Free memory was 165.2 MB in the beginning and 152.6 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-06-24 21:25:56,111 INFO L168 Benchmark]: TraceAbstraction took 27289.10 ms. Allocated memory was 188.7 MB in the beginning and 2.7 GB in the end (delta: 2.5 GB). Free memory was 152.3 MB in the beginning and 2.5 GB in the end (delta: -2.4 GB). Peak memory consumption was 480.1 MB. Max. memory is 8.0 GB. [2021-06-24 21:25:56,118 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 0.10 ms. Allocated memory is still 188.7 MB. Free memory is still 169.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 26.47 ms. Allocated memory is still 188.7 MB. Free memory was 167.9 MB in the beginning and 166.1 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 13.05 ms. Allocated memory is still 188.7 MB. Free memory was 166.1 MB in the beginning and 165.2 MB in the end (delta: 868.7 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 263.23 ms. Allocated memory is still 188.7 MB. Free memory was 165.2 MB in the beginning and 152.6 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 27289.10 ms. Allocated memory was 188.7 MB in the beginning and 2.7 GB in the end (delta: 2.5 GB). Free memory was 152.3 MB in the beginning and 2.5 GB in the end (delta: -2.4 GB). Peak memory consumption was 480.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1057201, positive: 900239, positive conditional: 898428, positive unconditional: 1811, negative: 156962, negative conditional: 156879, negative unconditional: 83, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 957093, positive: 900239, positive conditional: 898428, positive unconditional: 1811, negative: 56854, negative conditional: 56771, negative unconditional: 83, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 957093, positive: 900239, positive conditional: 0, positive unconditional: 900239, negative: 56854, negative conditional: 0, negative unconditional: 56854, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1508, positive: 1448, positive conditional: 0, positive unconditional: 1448, negative: 60, negative conditional: 0, negative unconditional: 60, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1508, positive: 1394, positive conditional: 0, positive unconditional: 1394, negative: 114, negative conditional: 0, negative unconditional: 114, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 114, positive: 54, positive conditional: 0, positive unconditional: 54, negative: 60, negative conditional: 0, negative unconditional: 60, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 114, positive: 54, positive conditional: 0, positive unconditional: 54, negative: 60, negative conditional: 0, negative unconditional: 60, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 345, positive: 172, positive conditional: 0, positive unconditional: 172, negative: 173, negative conditional: 0, negative unconditional: 173, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 957093, positive: 898791, positive conditional: 0, positive unconditional: 898791, negative: 56794, negative conditional: 0, negative unconditional: 56794, unknown: 1508, unknown conditional: 0, unknown unconditional: 1508] , Statistics on independence cache: Total cache size (in pairs): 1508, Positive cache size: 1448, Positive conditional cache size: 0, Positive unconditional cache size: 1448, Negative cache size: 60, Negative conditional cache size: 0, Negative unconditional cache size: 60 ], Maximal queried relation: 0, Independence queries for same thread: 100108 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 21507, Number of persistent set computation: 372522, Number of trivial persistent sets: 371526, Underlying independence relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1057201, positive: 900239, positive conditional: 898428, positive unconditional: 1811, negative: 156962, negative conditional: 156879, negative unconditional: 83, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 957093, positive: 900239, positive conditional: 898428, positive unconditional: 1811, negative: 56854, negative conditional: 56771, negative unconditional: 83, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 957093, positive: 900239, positive conditional: 0, positive unconditional: 900239, negative: 56854, negative conditional: 0, negative unconditional: 56854, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1508, positive: 1448, positive conditional: 0, positive unconditional: 1448, negative: 60, negative conditional: 0, negative unconditional: 60, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1508, positive: 1394, positive conditional: 0, positive unconditional: 1394, negative: 114, negative conditional: 0, negative unconditional: 114, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 114, positive: 54, positive conditional: 0, positive unconditional: 54, negative: 60, negative conditional: 0, negative unconditional: 60, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 114, positive: 54, positive conditional: 0, positive unconditional: 54, negative: 60, negative conditional: 0, negative unconditional: 60, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 345, positive: 172, positive conditional: 0, positive unconditional: 172, negative: 173, negative conditional: 0, negative unconditional: 173, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 957093, positive: 898791, positive conditional: 0, positive unconditional: 898791, negative: 56794, negative conditional: 0, negative unconditional: 56794, unknown: 1508, unknown conditional: 0, unknown unconditional: 1508] , Statistics on independence cache: Total cache size (in pairs): 1508, Positive cache size: 1448, Positive conditional cache size: 0, Positive unconditional cache size: 1448, Negative cache size: 60, Negative conditional cache size: 0, Negative unconditional cache size: 60 ], Maximal queried relation: 0, Independence queries for same thread: 100108 - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 8315, positive: 7756, positive conditional: 6558, positive unconditional: 1198, negative: 559, negative conditional: 527, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 7836, positive: 7756, positive conditional: 6558, positive unconditional: 1198, negative: 80, negative conditional: 48, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 7836, positive: 7750, positive conditional: 0, positive unconditional: 7750, negative: 86, negative conditional: 0, negative unconditional: 86, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 994, positive: 968, positive conditional: 0, positive unconditional: 968, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 994, positive: 949, positive conditional: 0, positive unconditional: 949, negative: 45, negative conditional: 0, negative unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 45, positive: 19, positive conditional: 0, positive unconditional: 19, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 52, positive: 21, positive conditional: 2, positive unconditional: 19, negative: 31, negative conditional: 5, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 71, positive: 22, positive conditional: 2, positive unconditional: 19, negative: 50, negative conditional: 5, negative unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 7836, positive: 6782, positive conditional: 0, positive unconditional: 6782, negative: 60, negative conditional: 0, negative unconditional: 60, unknown: 994, unknown conditional: 0, unknown unconditional: 994] , Statistics on independence cache: Total cache size (in pairs): 1001, Positive cache size: 970, Positive conditional cache size: 2, Positive unconditional cache size: 968, Negative cache size: 31, Negative conditional cache size: 5, Negative unconditional cache size: 26, SemanticConditionEliminator.Independence Queries: [ total: 153, positive: 6, positive conditional: 6, positive unconditional: 0, negative: 147, negative conditional: 11, negative unconditional: 136, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 153, positive: 6, positive conditional: 6, positive unconditional: 0, negative: 147, negative conditional: 11, negative unconditional: 136, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 52, positive: 21, positive conditional: 2, positive unconditional: 19, negative: 31, negative conditional: 5, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 71, positive: 22, positive conditional: 2, positive unconditional: 19, negative: 50, negative conditional: 5, negative unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 153, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 142, negative conditional: 6, negative unconditional: 136, unknown: 7, unknown conditional: 7, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1001, Positive cache size: 970, Positive conditional cache size: 2, Positive unconditional cache size: 968, Negative cache size: 31, Negative conditional cache size: 5, Negative unconditional cache size: 26, Eliminated conditions: 113, SemanticConditionEliminator.Independence Queries: [ total: 153, positive: 6, positive conditional: 6, positive unconditional: 0, negative: 147, negative conditional: 11, negative unconditional: 136, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 153, positive: 6, positive conditional: 6, positive unconditional: 0, negative: 147, negative conditional: 11, negative unconditional: 136, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 52, positive: 21, positive conditional: 2, positive unconditional: 19, negative: 31, negative conditional: 5, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 71, positive: 22, positive conditional: 2, positive unconditional: 19, negative: 50, negative conditional: 5, negative unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 153, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 142, negative conditional: 6, negative unconditional: 136, unknown: 7, unknown conditional: 7, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1001, Positive cache size: 970, Positive conditional cache size: 2, Positive unconditional cache size: 968, Negative cache size: 31, Negative conditional cache size: 5, Negative unconditional cache size: 26, Eliminated conditions: 113, SemanticConditionEliminator.Independence Queries: [ total: 153, positive: 6, positive conditional: 6, positive unconditional: 0, negative: 147, negative conditional: 11, negative unconditional: 136, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 153, positive: 6, positive conditional: 6, positive unconditional: 0, negative: 147, negative conditional: 11, negative unconditional: 136, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 52, positive: 21, positive conditional: 2, positive unconditional: 19, negative: 31, negative conditional: 5, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 71, positive: 22, positive conditional: 2, positive unconditional: 19, negative: 50, negative conditional: 5, negative unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 153, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 142, negative conditional: 6, negative unconditional: 136, unknown: 7, unknown conditional: 7, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1001, Positive cache size: 970, Positive conditional cache size: 2, Positive unconditional cache size: 968, Negative cache size: 31, Negative conditional cache size: 5, Negative unconditional cache size: 26, Eliminated conditions: 113 ], Maximal queried relation: 3, Independence queries for same thread: 479 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 248, Number of persistent set computation: 2981, Number of trivial persistent sets: 2929, Underlying independence relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 8315, positive: 7756, positive conditional: 6558, positive unconditional: 1198, negative: 559, negative conditional: 527, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 7836, positive: 7756, positive conditional: 6558, positive unconditional: 1198, negative: 80, negative conditional: 48, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 7836, positive: 7750, positive conditional: 0, positive unconditional: 7750, negative: 86, negative conditional: 0, negative unconditional: 86, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 994, positive: 968, positive conditional: 0, positive unconditional: 968, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 994, positive: 949, positive conditional: 0, positive unconditional: 949, negative: 45, negative conditional: 0, negative unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 45, positive: 19, positive conditional: 0, positive unconditional: 19, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 52, positive: 21, positive conditional: 2, positive unconditional: 19, negative: 31, negative conditional: 5, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 71, positive: 22, positive conditional: 2, positive unconditional: 19, negative: 50, negative conditional: 5, negative unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 7836, positive: 6782, positive conditional: 0, positive unconditional: 6782, negative: 60, negative conditional: 0, negative unconditional: 60, unknown: 994, unknown conditional: 0, unknown unconditional: 994] , Statistics on independence cache: Total cache size (in pairs): 1001, Positive cache size: 970, Positive conditional cache size: 2, Positive unconditional cache size: 968, Negative cache size: 31, Negative conditional cache size: 5, Negative unconditional cache size: 26, SemanticConditionEliminator.Independence Queries: [ total: 153, positive: 6, positive conditional: 6, positive unconditional: 0, negative: 147, negative conditional: 11, negative unconditional: 136, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 153, positive: 6, positive conditional: 6, positive unconditional: 0, negative: 147, negative conditional: 11, negative unconditional: 136, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 52, positive: 21, positive conditional: 2, positive unconditional: 19, negative: 31, negative conditional: 5, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 71, positive: 22, positive conditional: 2, positive unconditional: 19, negative: 50, negative conditional: 5, negative unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 153, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 142, negative conditional: 6, negative unconditional: 136, unknown: 7, unknown conditional: 7, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1001, Positive cache size: 970, Positive conditional cache size: 2, Positive unconditional cache size: 968, Negative cache size: 31, Negative conditional cache size: 5, Negative unconditional cache size: 26, Eliminated conditions: 113, SemanticConditionEliminator.Independence Queries: [ total: 153, positive: 6, positive conditional: 6, positive unconditional: 0, negative: 147, negative conditional: 11, negative unconditional: 136, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 153, positive: 6, positive conditional: 6, positive unconditional: 0, negative: 147, negative conditional: 11, negative unconditional: 136, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 52, positive: 21, positive conditional: 2, positive unconditional: 19, negative: 31, negative conditional: 5, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 71, positive: 22, positive conditional: 2, positive unconditional: 19, negative: 50, negative conditional: 5, negative unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 153, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 142, negative conditional: 6, negative unconditional: 136, unknown: 7, unknown conditional: 7, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1001, Positive cache size: 970, Positive conditional cache size: 2, Positive unconditional cache size: 968, Negative cache size: 31, Negative conditional cache size: 5, Negative unconditional cache size: 26, Eliminated conditions: 113, SemanticConditionEliminator.Independence Queries: [ total: 153, positive: 6, positive conditional: 6, positive unconditional: 0, negative: 147, negative conditional: 11, negative unconditional: 136, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 153, positive: 6, positive conditional: 6, positive unconditional: 0, negative: 147, negative conditional: 11, negative unconditional: 136, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 52, positive: 21, positive conditional: 2, positive unconditional: 19, negative: 31, negative conditional: 5, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 71, positive: 22, positive conditional: 2, positive unconditional: 19, negative: 50, negative conditional: 5, negative unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 153, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 142, negative conditional: 6, negative unconditional: 136, unknown: 7, unknown conditional: 7, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1001, Positive cache size: 970, Positive conditional cache size: 2, Positive unconditional cache size: 968, Negative cache size: 31, Negative conditional cache size: 5, Negative unconditional cache size: 26, Eliminated conditions: 113 ], Maximal queried relation: 3, Independence queries for same thread: 479 - CounterExampleResult [Line: 36]: 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] [L20] FORK 0 fork 2 DeviceThread(); VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L21] FORK 0 fork 3 DeviceThread(); VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L22] FORK 0 fork 4 DeviceThread(); VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L46] 5 assume !stoppingFlag; VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L68] 1 stoppingFlag := true; VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=true] [L78] 1 pendingIo := pendingIo - 1; [L79] COND TRUE 1 pendingIo == 0 [L80] 1 stoppingEvent := true; VAL [pendingIo=0, stopped=false, stoppingEvent=true, stoppingFlag=true] [L23] FORK 0 fork 5 DeviceThread(); VAL [pendingIo=0, stopped=false, stoppingEvent=true, stoppingFlag=true] [L47] 5 pendingIo := pendingIo + 1; VAL [pendingIo=1, stopped=false, stoppingEvent=true, stoppingFlag=true] [L70] 1 assume stoppingEvent; VAL [pendingIo=1, stopped=false, stoppingEvent=true, stoppingFlag=true] [L71] 1 stopped := true; VAL [pendingIo=1, stopped=true, stoppingEvent=true, stoppingFlag=true] [L36] 5 assert !stopped; VAL [pendingIo=1, stopped=true, stoppingEvent=true, stoppingFlag=true] - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 9 procedures, 66 locations, 12 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 26306.6ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 8.7ms, PartialOrderReductionTime: 26257.7ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 0, 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: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: DeviceThreadThread1of1ForFork4 with 1 thread instances CFG has 9 procedures, 66 locations, 12 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 881.9ms, OverallIterations: 4, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1.1ms, PartialOrderReductionTime: 412.3ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 12, 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: 4.2ms SsaConstructionTime, 26.4ms SatisfiabilityAnalysisTime, 101.9ms InterpolantComputationTime, 88 NumberOfCodeBlocks, 88 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 64 ConstructedInterpolants, 0 QuantifiedInterpolants, 197 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 3/3 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...