/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-DelaySleepPersistentFixedOrder-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth02-incorrect.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d310483fe8b4879eee5de19363f50e4b839cc4ec-d310483 [2021-06-24 20:49:08,033 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-24 20:49:08,034 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-24 20:49:08,058 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-24 20:49:08,069 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-24 20:49:08,069 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-24 20:49:08,070 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-24 20:49:08,071 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-24 20:49:08,071 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-24 20:49:08,072 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-24 20:49:08,073 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-24 20:49:08,074 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-24 20:49:08,075 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-24 20:49:08,076 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-24 20:49:08,076 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-24 20:49:08,077 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-24 20:49:08,078 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-24 20:49:08,098 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-24 20:49:08,098 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-24 20:49:08,099 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-24 20:49:08,103 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-DelaySleepPersistentFixedOrder-NoLbe.epf [2021-06-24 20:49:08,126 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-24 20:49:08,126 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-24 20:49:08,127 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-24 20:49:08,127 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-24 20:49:08,129 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-24 20:49:08,129 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-24 20:49:08,129 INFO L138 SettingsManager]: * Use SBE=true [2021-06-24 20:49:08,129 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-24 20:49:08,129 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-24 20:49:08,129 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-24 20:49:08,130 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-24 20:49:08,130 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-24 20:49:08,130 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-24 20:49:08,130 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-24 20:49:08,130 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-24 20:49:08,131 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-24 20:49:08,131 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-24 20:49:08,131 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-24 20:49:08,131 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-24 20:49:08,131 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-24 20:49:08,131 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-24 20:49:08,131 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-24 20:49:08,131 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-24 20:49:08,131 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-24 20:49:08,132 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-24 20:49:08,132 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-24 20:49:08,132 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-24 20:49:08,132 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-24 20:49:08,132 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-24 20:49:08,132 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-24 20:49:08,132 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-24 20:49:08,132 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-24 20:49:08,132 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_DELAY_SET_FIXEDORDER [2021-06-24 20:49:08,133 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-24 20:49:08,363 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-24 20:49:08,389 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-24 20:49:08,391 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-24 20:49:08,391 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-24 20:49:08,392 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-24 20:49:08,393 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth02-incorrect.bpl [2021-06-24 20:49:08,393 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth02-incorrect.bpl' [2021-06-24 20:49:08,409 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-24 20:49:08,411 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-24 20:49:08,411 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-24 20:49:08,412 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-24 20:49:08,412 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-24 20:49:08,420 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "bluetooth02-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 08:49:08" (1/1) ... [2021-06-24 20:49:08,426 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "bluetooth02-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 08:49:08" (1/1) ... [2021-06-24 20:49:08,438 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-24 20:49:08,440 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-24 20:49:08,440 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-24 20:49:08,440 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-24 20:49:08,445 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "bluetooth02-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 08:49:08" (1/1) ... [2021-06-24 20:49:08,445 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "bluetooth02-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 08:49:08" (1/1) ... [2021-06-24 20:49:08,445 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "bluetooth02-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 08:49:08" (1/1) ... [2021-06-24 20:49:08,446 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "bluetooth02-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 08:49:08" (1/1) ... [2021-06-24 20:49:08,447 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "bluetooth02-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 08:49:08" (1/1) ... [2021-06-24 20:49:08,451 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "bluetooth02-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 08:49:08" (1/1) ... [2021-06-24 20:49:08,452 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "bluetooth02-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 08:49:08" (1/1) ... [2021-06-24 20:49:08,452 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-24 20:49:08,454 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-24 20:49:08,454 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-24 20:49:08,454 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-24 20:49:08,455 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "bluetooth02-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 08:49:08" (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 20:49:08,506 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThread given in one single declaration [2021-06-24 20:49:08,506 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThread [2021-06-24 20:49:08,506 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThread [2021-06-24 20:49:08,506 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ServerThread given in one single declaration [2021-06-24 20:49:08,506 INFO L130 BoogieDeclarations]: Found specification of procedure ServerThread [2021-06-24 20:49:08,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ServerThread [2021-06-24 20:49:08,506 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-24 20:49:08,506 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-24 20:49:08,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-24 20:49:08,507 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 20:49:08,721 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-24 20:49:08,722 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-06-24 20:49:08,723 INFO L202 PluginConnector]: Adding new model bluetooth02-incorrect.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 08:49:08 BoogieIcfgContainer [2021-06-24 20:49:08,723 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-24 20:49:08,724 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-24 20:49:08,724 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-24 20:49:08,726 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-24 20:49:08,726 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth02-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 08:49:08" (1/2) ... [2021-06-24 20:49:08,727 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@448fbcc9 and model type bluetooth02-incorrect.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.06 08:49:08, skipping insertion in model container [2021-06-24 20:49:08,727 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth02-incorrect.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 08:49:08" (2/2) ... [2021-06-24 20:49:08,728 INFO L111 eAbstractionObserver]: Analyzing ICFG bluetooth02-incorrect.bpl [2021-06-24 20:49:08,732 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-24 20:49:08,732 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-24 20:49:08,732 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-24 20:49:08,733 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-24 20:49:08,781 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-24 20:49:08,813 INFO L255 AbstractCegarLoop]: Starting to check reachability of 3 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 20:49:08,890 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-24 20:49:08,890 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-24 20:49:08,890 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-24 20:49:08,890 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-24 20:49:08,890 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-24 20:49:08,890 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-24 20:49:08,891 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-24 20:49:08,891 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-24 20:49:08,979 INFO L301 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE (1/3) [2021-06-24 20:49:08,980 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 20:49:08,986 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-24 20:49:08,987 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-24 20:49:08,987 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-24 20:49:08,987 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-24 20:49:08,987 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-24 20:49:08,987 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-24 20:49:08,987 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-24 20:49:08,987 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == DeviceThreadThread1of1ForFork2======== [2021-06-24 20:49:09,068 INFO L430 AbstractCegarLoop]: === Iteration 1 === [DeviceThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-06-24 20:49:09,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-24 20:49:09,072 INFO L82 PathProgramCache]: Analyzing trace with hash 429081831, now seen corresponding path program 1 times [2021-06-24 20:49:09,077 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-24 20:49:09,077 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725080728] [2021-06-24 20:49:09,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-24 20:49:09,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-24 20:49:09,175 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 20:49:09,175 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-24 20:49:09,175 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725080728] [2021-06-24 20:49:09,176 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725080728] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-24 20:49:09,176 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-24 20:49:09,176 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-24 20:49:09,176 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146226286] [2021-06-24 20:49:09,179 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-24 20:49:09,179 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-24 20:49:09,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-24 20:49:09,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-24 20:49:09,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-24 20:49:09,189 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-24 20:49:09,189 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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 20:49:09,189 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-24 20:49:09,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 20:49:09,246 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-24 20:49:09,246 INFO L430 AbstractCegarLoop]: === Iteration 2 === [DeviceThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-06-24 20:49:09,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-24 20:49:09,247 INFO L82 PathProgramCache]: Analyzing trace with hash -1221512829, now seen corresponding path program 1 times [2021-06-24 20:49:09,247 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-24 20:49:09,247 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241498859] [2021-06-24 20:49:09,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-24 20:49:09,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-24 20:49:09,261 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 20:49:09,261 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-24 20:49:09,262 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241498859] [2021-06-24 20:49:09,262 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241498859] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-24 20:49:09,262 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-24 20:49:09,262 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-24 20:49:09,262 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050688981] [2021-06-24 20:49:09,263 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-24 20:49:09,263 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-24 20:49:09,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-24 20:49:09,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-24 20:49:09,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-24 20:49:09,264 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-24 20:49:09,264 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-24 20:49:09,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-24 20:49:09,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-24 20:49:09,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 20:49:09,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 20:49:09,332 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-24 20:49:09,332 INFO L430 AbstractCegarLoop]: === Iteration 3 === [DeviceThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-06-24 20:49:09,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-24 20:49:09,332 INFO L82 PathProgramCache]: Analyzing trace with hash 2142660270, now seen corresponding path program 1 times [2021-06-24 20:49:09,332 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-24 20:49:09,333 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782133337] [2021-06-24 20:49:09,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-24 20:49:09,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-24 20:49:09,459 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-06-24 20:49:09,460 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-24 20:49:09,460 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782133337] [2021-06-24 20:49:09,461 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782133337] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-24 20:49:09,461 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-24 20:49:09,461 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-24 20:49:09,461 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925981054] [2021-06-24 20:49:09,461 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-24 20:49:09,461 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-24 20:49:09,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-24 20:49:09,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2021-06-24 20:49:09,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-24 20:49:09,462 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-24 20:49:09,462 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 6 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 20:49:09,462 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-24 20:49:09,463 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-24 20:49:09,463 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-24 20:49:09,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 20:49:09,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 20:49:09,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-24 20:49:09,571 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-24 20:49:09,571 INFO L430 AbstractCegarLoop]: === Iteration 4 === [DeviceThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-06-24 20:49:09,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-24 20:49:09,571 INFO L82 PathProgramCache]: Analyzing trace with hash -540740768, now seen corresponding path program 1 times [2021-06-24 20:49:09,571 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-24 20:49:09,572 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896606766] [2021-06-24 20:49:09,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-24 20:49:09,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-24 20:49:09,577 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-24 20:49:09,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-24 20:49:09,582 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-24 20:49:09,592 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-06-24 20:49:09,593 INFO L605 BasicCegarLoop]: Counterexample might be feasible [2021-06-24 20:49:09,593 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-24 20:49:09,596 INFO L301 ceAbstractionStarter]: Result for error location DeviceThreadThread1of1ForFork2 was UNSAFE (2/3) [2021-06-24 20:49:09,597 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-24 20:49:09,651 INFO L202 PluginConnector]: Adding new model bluetooth02-incorrect.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.06 08:49:09 BasicIcfg [2021-06-24 20:49:09,651 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-24 20:49:09,652 INFO L168 Benchmark]: Toolchain (without parser) took 1241.10 ms. Allocated memory is still 190.8 MB. Free memory was 171.9 MB in the beginning and 173.1 MB in the end (delta: -1.2 MB). Peak memory consumption was 59.0 MB. Max. memory is 8.0 GB. [2021-06-24 20:49:09,652 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.11 ms. Allocated memory is still 190.8 MB. Free memory is still 172.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-06-24 20:49:09,652 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.13 ms. Allocated memory is still 190.8 MB. Free memory was 171.7 MB in the beginning and 170.0 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-06-24 20:49:09,652 INFO L168 Benchmark]: Boogie Preprocessor took 13.69 ms. Allocated memory is still 190.8 MB. Free memory was 169.9 MB in the beginning and 169.1 MB in the end (delta: 824.4 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-06-24 20:49:09,653 INFO L168 Benchmark]: RCFGBuilder took 269.53 ms. Allocated memory is still 190.8 MB. Free memory was 169.0 MB in the beginning and 156.5 MB in the end (delta: 12.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-06-24 20:49:09,653 INFO L168 Benchmark]: TraceAbstraction took 926.86 ms. Allocated memory is still 190.8 MB. Free memory was 156.0 MB in the beginning and 173.1 MB in the end (delta: -17.1 MB). Peak memory consumption was 43.3 MB. Max. memory is 8.0 GB. [2021-06-24 20:49:09,654 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 190.8 MB. Free memory is still 172.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 27.13 ms. Allocated memory is still 190.8 MB. Free memory was 171.7 MB in the beginning and 170.0 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 13.69 ms. Allocated memory is still 190.8 MB. Free memory was 169.9 MB in the beginning and 169.1 MB in the end (delta: 824.4 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 269.53 ms. Allocated memory is still 190.8 MB. Free memory was 169.0 MB in the beginning and 156.5 MB in the end (delta: 12.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 926.86 ms. Allocated memory is still 190.8 MB. Free memory was 156.0 MB in the beginning and 173.1 MB in the end (delta: -17.1 MB). Peak memory consumption was 43.3 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 178, positive: 175, positive conditional: 3, positive unconditional: 172, negative: 3, negative conditional: 1, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 177, positive: 175, positive conditional: 3, positive unconditional: 172, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 177, positive: 175, positive conditional: 0, positive unconditional: 175, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 168, positive: 166, positive conditional: 0, positive unconditional: 166, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 168, positive: 164, positive conditional: 0, positive unconditional: 164, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 4, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 26, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 23, negative conditional: 0, negative unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 177, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 168, unknown conditional: 0, unknown unconditional: 168] , Statistics on independence cache: Total cache size (in pairs): 168, Positive cache size: 166, Positive conditional cache size: 0, Positive unconditional cache size: 166, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2 ], Maximal queried relation: 0, Independence queries for same thread: 1 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 45, Number of persistent set computation: 17, Number of trivial persistent sets: 15, Underlying independence relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 178, positive: 175, positive conditional: 3, positive unconditional: 172, negative: 3, negative conditional: 1, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 177, positive: 175, positive conditional: 3, positive unconditional: 172, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 177, positive: 175, positive conditional: 0, positive unconditional: 175, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 168, positive: 166, positive conditional: 0, positive unconditional: 166, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 168, positive: 164, positive conditional: 0, positive unconditional: 164, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 4, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 4, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 26, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 23, negative conditional: 0, negative unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 177, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 168, unknown conditional: 0, unknown unconditional: 168] , Statistics on independence cache: Total cache size (in pairs): 168, Positive cache size: 166, Positive conditional cache size: 0, Positive unconditional cache size: 166, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2 ], Maximal queried relation: 0, Independence queries for same thread: 1 - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1335, positive: 1246, positive conditional: 833, positive unconditional: 413, negative: 89, negative conditional: 63, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 1291, positive: 1246, positive conditional: 833, positive unconditional: 413, negative: 45, negative conditional: 19, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 1291, positive: 1236, positive conditional: 0, positive unconditional: 1236, negative: 55, negative conditional: 0, negative unconditional: 55, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 315, positive: 299, positive conditional: 0, positive unconditional: 299, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 315, positive: 285, positive conditional: 0, positive unconditional: 285, negative: 30, negative conditional: 0, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 30, positive: 14, positive conditional: 0, positive unconditional: 14, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 38, positive: 18, positive conditional: 4, positive unconditional: 14, negative: 20, negative conditional: 4, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 97, positive: 35, positive conditional: 8, positive unconditional: 27, negative: 62, negative conditional: 6, negative unconditional: 56, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1291, positive: 937, positive conditional: 0, positive unconditional: 937, negative: 39, negative conditional: 0, negative unconditional: 39, unknown: 315, unknown conditional: 0, unknown unconditional: 315] , Statistics on independence cache: Total cache size (in pairs): 323, Positive cache size: 303, Positive conditional cache size: 4, Positive unconditional cache size: 299, Negative cache size: 20, Negative conditional cache size: 4, Negative unconditional cache size: 16, SemanticConditionEliminator.Independence Queries: [ total: 109, positive: 10, positive conditional: 10, positive unconditional: 0, negative: 99, negative conditional: 8, negative unconditional: 91, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 109, positive: 10, positive conditional: 10, positive unconditional: 0, negative: 99, negative conditional: 8, negative unconditional: 91, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 38, positive: 18, positive conditional: 4, positive unconditional: 14, negative: 20, negative conditional: 4, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 97, positive: 35, positive conditional: 8, positive unconditional: 27, negative: 62, negative conditional: 6, negative unconditional: 56, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 109, positive: 6, positive conditional: 6, positive unconditional: 0, negative: 95, negative conditional: 4, negative unconditional: 91, unknown: 8, unknown conditional: 8, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 323, Positive cache size: 303, Positive conditional cache size: 4, Positive unconditional cache size: 299, Negative cache size: 20, Negative conditional cache size: 4, Negative unconditional cache size: 16, Eliminated conditions: 59, SemanticConditionEliminator.Independence Queries: [ total: 109, positive: 10, positive conditional: 10, positive unconditional: 0, negative: 99, negative conditional: 8, negative unconditional: 91, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 109, positive: 10, positive conditional: 10, positive unconditional: 0, negative: 99, negative conditional: 8, negative unconditional: 91, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 38, positive: 18, positive conditional: 4, positive unconditional: 14, negative: 20, negative conditional: 4, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 97, positive: 35, positive conditional: 8, positive unconditional: 27, negative: 62, negative conditional: 6, negative unconditional: 56, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 109, positive: 6, positive conditional: 6, positive unconditional: 0, negative: 95, negative conditional: 4, negative unconditional: 91, unknown: 8, unknown conditional: 8, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 323, Positive cache size: 303, Positive conditional cache size: 4, Positive unconditional cache size: 299, Negative cache size: 20, Negative conditional cache size: 4, Negative unconditional cache size: 16, Eliminated conditions: 59, SemanticConditionEliminator.Independence Queries: [ total: 109, positive: 10, positive conditional: 10, positive unconditional: 0, negative: 99, negative conditional: 8, negative unconditional: 91, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 109, positive: 10, positive conditional: 10, positive unconditional: 0, negative: 99, negative conditional: 8, negative unconditional: 91, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 38, positive: 18, positive conditional: 4, positive unconditional: 14, negative: 20, negative conditional: 4, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 97, positive: 35, positive conditional: 8, positive unconditional: 27, negative: 62, negative conditional: 6, negative unconditional: 56, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 109, positive: 6, positive conditional: 6, positive unconditional: 0, negative: 95, negative conditional: 4, negative unconditional: 91, unknown: 8, unknown conditional: 8, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 323, Positive cache size: 303, Positive conditional cache size: 4, Positive unconditional cache size: 299, Negative cache size: 20, Negative conditional cache size: 4, Negative unconditional cache size: 16, Eliminated conditions: 59 ], Maximal queried relation: 3, Independence queries for same thread: 44 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 177, Number of persistent set computation: 694, Number of trivial persistent sets: 636, Underlying independence relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1335, positive: 1246, positive conditional: 833, positive unconditional: 413, negative: 89, negative conditional: 63, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 1291, positive: 1246, positive conditional: 833, positive unconditional: 413, negative: 45, negative conditional: 19, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 1291, positive: 1236, positive conditional: 0, positive unconditional: 1236, negative: 55, negative conditional: 0, negative unconditional: 55, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 315, positive: 299, positive conditional: 0, positive unconditional: 299, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 315, positive: 285, positive conditional: 0, positive unconditional: 285, negative: 30, negative conditional: 0, negative unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 30, positive: 14, positive conditional: 0, positive unconditional: 14, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 38, positive: 18, positive conditional: 4, positive unconditional: 14, negative: 20, negative conditional: 4, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 97, positive: 35, positive conditional: 8, positive unconditional: 27, negative: 62, negative conditional: 6, negative unconditional: 56, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1291, positive: 937, positive conditional: 0, positive unconditional: 937, negative: 39, negative conditional: 0, negative unconditional: 39, unknown: 315, unknown conditional: 0, unknown unconditional: 315] , Statistics on independence cache: Total cache size (in pairs): 323, Positive cache size: 303, Positive conditional cache size: 4, Positive unconditional cache size: 299, Negative cache size: 20, Negative conditional cache size: 4, Negative unconditional cache size: 16, SemanticConditionEliminator.Independence Queries: [ total: 109, positive: 10, positive conditional: 10, positive unconditional: 0, negative: 99, negative conditional: 8, negative unconditional: 91, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 109, positive: 10, positive conditional: 10, positive unconditional: 0, negative: 99, negative conditional: 8, negative unconditional: 91, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 38, positive: 18, positive conditional: 4, positive unconditional: 14, negative: 20, negative conditional: 4, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 97, positive: 35, positive conditional: 8, positive unconditional: 27, negative: 62, negative conditional: 6, negative unconditional: 56, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 109, positive: 6, positive conditional: 6, positive unconditional: 0, negative: 95, negative conditional: 4, negative unconditional: 91, unknown: 8, unknown conditional: 8, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 323, Positive cache size: 303, Positive conditional cache size: 4, Positive unconditional cache size: 299, Negative cache size: 20, Negative conditional cache size: 4, Negative unconditional cache size: 16, Eliminated conditions: 59, SemanticConditionEliminator.Independence Queries: [ total: 109, positive: 10, positive conditional: 10, positive unconditional: 0, negative: 99, negative conditional: 8, negative unconditional: 91, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 109, positive: 10, positive conditional: 10, positive unconditional: 0, negative: 99, negative conditional: 8, negative unconditional: 91, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 38, positive: 18, positive conditional: 4, positive unconditional: 14, negative: 20, negative conditional: 4, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 97, positive: 35, positive conditional: 8, positive unconditional: 27, negative: 62, negative conditional: 6, negative unconditional: 56, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 109, positive: 6, positive conditional: 6, positive unconditional: 0, negative: 95, negative conditional: 4, negative unconditional: 91, unknown: 8, unknown conditional: 8, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 323, Positive cache size: 303, Positive conditional cache size: 4, Positive unconditional cache size: 299, Negative cache size: 20, Negative conditional cache size: 4, Negative unconditional cache size: 16, Eliminated conditions: 59, SemanticConditionEliminator.Independence Queries: [ total: 109, positive: 10, positive conditional: 10, positive unconditional: 0, negative: 99, negative conditional: 8, negative unconditional: 91, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 109, positive: 10, positive conditional: 10, positive unconditional: 0, negative: 99, negative conditional: 8, negative unconditional: 91, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 38, positive: 18, positive conditional: 4, positive unconditional: 14, negative: 20, negative conditional: 4, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 97, positive: 35, positive conditional: 8, positive unconditional: 27, negative: 62, negative conditional: 6, negative unconditional: 56, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 109, positive: 6, positive conditional: 6, positive unconditional: 0, negative: 95, negative conditional: 4, negative unconditional: 91, unknown: 8, unknown conditional: 8, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 323, Positive cache size: 303, Positive conditional cache size: 4, Positive unconditional cache size: 299, Negative cache size: 20, Negative conditional cache size: 4, Negative unconditional cache size: 16, Eliminated conditions: 59 ], Maximal queried relation: 3, Independence queries for same thread: 44 - CounterExampleResult [Line: 33]: 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] [L43] 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] [L43] 3 assume !stoppingFlag; VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L65] 1 stoppingFlag := true; VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=true] [L75] 1 pendingIo := pendingIo - 1; [L76] COND TRUE 1 pendingIo == 0 [L77] 1 stoppingEvent := true; VAL [pendingIo=0, stopped=false, stoppingEvent=true, stoppingFlag=true] [L44] 3 pendingIo := pendingIo + 1; VAL [pendingIo=1, stopped=false, stoppingEvent=true, stoppingFlag=true] [L44] 2 pendingIo := pendingIo + 1; VAL [pendingIo=2, stopped=false, stoppingEvent=true, stoppingFlag=true] [L33] 2 assert !stopped; VAL [pendingIo=2, stopped=false, stoppingEvent=true, stoppingFlag=true] [L52] 2 pendingIo := pendingIo - 1; [L53] COND FALSE 2 !(pendingIo == 0) VAL [pendingIo=1, stopped=false, stoppingEvent=true, stoppingFlag=true] [L67] 1 assume stoppingEvent; VAL [pendingIo=1, stopped=false, stoppingEvent=true, stoppingFlag=true] [L68] 1 stopped := true; VAL [pendingIo=1, stopped=true, stoppingEvent=true, stoppingFlag=true] [L33] 3 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 6 procedures, 42 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 155.2ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 16.5ms, PartialOrderReductionTime: 66.4ms, 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: DeviceThreadThread1of1ForFork2 with 1 thread instances CFG has 6 procedures, 42 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 613.1ms, OverallIterations: 4, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1.0ms, PartialOrderReductionTime: 311.1ms, 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: 9.3ms SsaConstructionTime, 49.9ms SatisfiabilityAnalysisTime, 137.1ms InterpolantComputationTime, 76 NumberOfCodeBlocks, 76 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 53 ConstructedInterpolants, 0 QuantifiedInterpolants, 160 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 5/5 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...