/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/bluetooth-incorrect06.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-1c3aa5735269c4be989a50fc1da9ea7b9492ef29-1c3aa57 [2021-07-01 13:15:45,353 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-01 13:15:45,356 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-01 13:15:45,397 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-01 13:15:45,413 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-01 13:15:45,414 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-01 13:15:45,415 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-01 13:15:45,416 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-01 13:15:45,418 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-01 13:15:45,419 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-01 13:15:45,421 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-01 13:15:45,425 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-01 13:15:45,427 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-01 13:15:45,428 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-01 13:15:45,429 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-01 13:15:45,431 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-01 13:15:45,436 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-07-01 13:15:45,442 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-01 13:15:45,442 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-01 13:15:45,443 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-01 13:15:45,444 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 [2021-07-01 13:15:45,473 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-01 13:15:45,473 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-01 13:15:45,473 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-01 13:15:45,473 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-01 13:15:45,475 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-01 13:15:45,475 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-01 13:15:45,475 INFO L138 SettingsManager]: * Use SBE=true [2021-07-01 13:15:45,476 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-01 13:15:45,476 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-01 13:15:45,476 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-01 13:15:45,476 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-01 13:15:45,477 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-01 13:15:45,477 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-01 13:15:45,477 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-01 13:15:45,477 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-01 13:15:45,477 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-01 13:15:45,477 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-01 13:15:45,477 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-01 13:15:45,477 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-01 13:15:45,477 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-01 13:15:45,477 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-01 13:15:45,477 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-01 13:15:45,477 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-01 13:15:45,478 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-01 13:15:45,478 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-01 13:15:45,478 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-01 13:15:45,478 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-01 13:15:45,478 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-01 13:15:45,478 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-07-01 13:15:45,478 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-01 13:15:45,478 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-01 13:15:45,478 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-07-01 13:15:45,478 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-01 13:15:45,479 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-07-01 13:15:45,479 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-07-01 13:15:45,479 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-01 13:15:45,754 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-01 13:15:45,770 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-01 13:15:45,771 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-01 13:15:45,772 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-01 13:15:45,774 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-01 13:15:45,775 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-incorrect06.bpl [2021-07-01 13:15:45,775 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-incorrect06.bpl' [2021-07-01 13:15:45,791 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-01 13:15:45,792 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-01 13:15:45,802 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-01 13:15:45,802 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-01 13:15:45,802 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-01 13:15:45,810 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "bluetooth-incorrect06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 01:15:45" (1/1) ... [2021-07-01 13:15:45,815 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "bluetooth-incorrect06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 01:15:45" (1/1) ... [2021-07-01 13:15:45,825 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-01 13:15:45,826 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-01 13:15:45,826 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-01 13:15:45,826 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-01 13:15:45,831 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "bluetooth-incorrect06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 01:15:45" (1/1) ... [2021-07-01 13:15:45,831 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "bluetooth-incorrect06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 01:15:45" (1/1) ... [2021-07-01 13:15:45,832 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "bluetooth-incorrect06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 01:15:45" (1/1) ... [2021-07-01 13:15:45,832 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "bluetooth-incorrect06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 01:15:45" (1/1) ... [2021-07-01 13:15:45,833 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "bluetooth-incorrect06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 01:15:45" (1/1) ... [2021-07-01 13:15:45,835 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "bluetooth-incorrect06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 01:15:45" (1/1) ... [2021-07-01 13:15:45,835 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "bluetooth-incorrect06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 01:15:45" (1/1) ... [2021-07-01 13:15:45,836 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-01 13:15:45,836 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-01 13:15:45,836 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-01 13:15:45,837 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-01 13:15:45,837 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "bluetooth-incorrect06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 01:15:45" (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 [2021-07-01 13:15:45,879 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThreadWithAssert given in one single declaration [2021-07-01 13:15:45,879 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThreadWithAssert [2021-07-01 13:15:45,880 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThreadWithAssert [2021-07-01 13:15:45,880 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThread given in one single declaration [2021-07-01 13:15:45,880 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThread [2021-07-01 13:15:45,880 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThread [2021-07-01 13:15:45,880 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ServerThread given in one single declaration [2021-07-01 13:15:45,880 INFO L130 BoogieDeclarations]: Found specification of procedure ServerThread [2021-07-01 13:15:45,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ServerThread [2021-07-01 13:15:45,880 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-01 13:15:45,881 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-01 13:15:45,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-01 13:15:45,881 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-01 13:15:46,041 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-01 13:15:46,041 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-07-01 13:15:46,042 INFO L202 PluginConnector]: Adding new model bluetooth-incorrect06.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 01:15:46 BoogieIcfgContainer [2021-07-01 13:15:46,042 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-01 13:15:46,044 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-01 13:15:46,044 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-01 13:15:46,045 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-01 13:15:46,046 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-incorrect06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 01:15:45" (1/2) ... [2021-07-01 13:15:46,046 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a328030 and model type bluetooth-incorrect06.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 01:15:46, skipping insertion in model container [2021-07-01 13:15:46,046 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-incorrect06.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 01:15:46" (2/2) ... [2021-07-01 13:15:46,047 INFO L111 eAbstractionObserver]: Analyzing ICFG bluetooth-incorrect06.bpl [2021-07-01 13:15:46,051 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-01 13:15:46,051 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-01 13:15:46,051 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-01 13:15:46,051 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-01 13:15:46,080 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-07-01 13:15:46,095 INFO L255 AbstractCegarLoop]: Starting to check reachability of 7 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 [2021-07-01 13:15:46,192 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-01 13:15:46,192 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-01 13:15:46,192 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-01 13:15:46,193 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-01 13:15:46,193 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-01 13:15:46,193 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-01 13:15:46,193 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-01 13:15:46,193 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-01 13:16:50,522 INFO L301 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE (1/2) [2021-07-01 13:16:50,523 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 [2021-07-01 13:16:50,541 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-01 13:16:50,541 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-01 13:16:50,541 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-01 13:16:50,541 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-01 13:16:50,541 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-01 13:16:50,541 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-01 13:16:50,541 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-01 13:16:50,542 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == DeviceThreadWithAssertThread1of1ForFork1======== [2021-07-01 13:16:50,608 INFO L430 AbstractCegarLoop]: === Iteration 1 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 13:16:50,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 13:16:50,612 INFO L82 PathProgramCache]: Analyzing trace with hash 410969981, now seen corresponding path program 1 times [2021-07-01 13:16:50,618 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 13:16:50,618 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770350456] [2021-07-01 13:16:50,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 13:16:50,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 13:16:50,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-01 13:16:50,699 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 13:16:50,699 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770350456] [2021-07-01 13:16:50,699 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770350456] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-01 13:16:50,700 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-01 13:16:50,700 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-01 13:16:50,700 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396329408] [2021-07-01 13:16:50,706 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-01 13:16:50,706 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 13:16:50,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-01 13:16:50,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-01 13:16:50,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 13:16:50,716 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 13:16:50,717 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2021-07-01 13:16:50,717 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 13:16:51,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 13:16:51,048 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-01 13:16:51,048 INFO L430 AbstractCegarLoop]: === Iteration 2 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 13:16:51,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 13:16:51,050 INFO L82 PathProgramCache]: Analyzing trace with hash 1054177960, now seen corresponding path program 1 times [2021-07-01 13:16:51,050 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 13:16:51,051 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780725017] [2021-07-01 13:16:51,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 13:16:51,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 13:16:51,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-01 13:16:51,089 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 13:16:51,090 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780725017] [2021-07-01 13:16:51,090 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780725017] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-01 13:16:51,090 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-01 13:16:51,090 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-07-01 13:16:51,090 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754777561] [2021-07-01 13:16:51,091 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-01 13:16:51,091 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 13:16:51,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-01 13:16:51,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-01 13:16:51,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 13:16:51,092 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 13:16:51,092 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 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) [2021-07-01 13:16:51,092 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 13:16:51,092 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 13:16:51,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 13:16:51,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 13:16:51,408 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-01 13:16:51,409 INFO L430 AbstractCegarLoop]: === Iteration 3 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 13:16:51,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 13:16:51,409 INFO L82 PathProgramCache]: Analyzing trace with hash -1297368212, now seen corresponding path program 1 times [2021-07-01 13:16:51,409 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 13:16:51,409 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846037029] [2021-07-01 13:16:51,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 13:16:51,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 13:16:51,471 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-07-01 13:16:51,471 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 13:16:51,471 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846037029] [2021-07-01 13:16:51,471 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846037029] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 13:16:51,471 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2089023110] [2021-07-01 13:16:51,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-01 13:16:51,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 13:16:51,515 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 24 conjunts are in the unsatisfiable core [2021-07-01 13:16:51,518 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-01 13:16:51,956 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-07-01 13:16:51,957 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2089023110] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 13:16:51,957 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-01 13:16:51,957 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2021-07-01 13:16:51,957 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001092619] [2021-07-01 13:16:51,958 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-07-01 13:16:51,958 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 13:16:51,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-07-01 13:16:51,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2021-07-01 13:16:51,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 13:16:51,959 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 13:16:51,959 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 4.636363636363637) internal successors, (51), 10 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-01 13:16:51,959 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 13:16:51,959 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 13:16:51,959 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 13:16:52,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 13:16:52,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 13:16:52,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-01 13:16:53,025 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-01 13:16:53,025 INFO L430 AbstractCegarLoop]: === Iteration 4 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 13:16:53,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 13:16:53,027 INFO L82 PathProgramCache]: Analyzing trace with hash 1852767570, now seen corresponding path program 1 times [2021-07-01 13:16:53,029 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 13:16:53,029 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604736155] [2021-07-01 13:16:53,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 13:16:53,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-01 13:16:53,043 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-01 13:16:53,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-01 13:16:53,069 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-01 13:16:53,087 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-01 13:16:53,087 INFO L605 BasicCegarLoop]: Counterexample might be feasible [2021-07-01 13:16:53,088 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-07-01 13:16:53,090 INFO L301 ceAbstractionStarter]: Result for error location DeviceThreadWithAssertThread1of1ForFork1 was UNSAFE (2/2) [2021-07-01 13:16:53,091 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-07-01 13:16:53,101 INFO L202 PluginConnector]: Adding new model bluetooth-incorrect06.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 01:16:53 BasicIcfg [2021-07-01 13:16:53,101 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-01 13:16:53,102 INFO L168 Benchmark]: Toolchain (without parser) took 67309.75 ms. Allocated memory was 195.0 MB in the beginning and 3.9 GB in the end (delta: 3.7 GB). Free memory was 174.4 MB in the beginning and 3.4 GB in the end (delta: -3.3 GB). Peak memory consumption was 455.8 MB. Max. memory is 8.0 GB. [2021-07-01 13:16:53,102 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.09 ms. Allocated memory is still 195.0 MB. Free memory is still 175.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-07-01 13:16:53,102 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.66 ms. Allocated memory is still 195.0 MB. Free memory was 174.4 MB in the beginning and 172.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-07-01 13:16:53,102 INFO L168 Benchmark]: Boogie Preprocessor took 9.75 ms. Allocated memory is still 195.0 MB. Free memory was 172.7 MB in the beginning and 171.6 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-07-01 13:16:53,102 INFO L168 Benchmark]: RCFGBuilder took 206.13 ms. Allocated memory is still 195.0 MB. Free memory was 171.6 MB in the beginning and 156.9 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2021-07-01 13:16:53,102 INFO L168 Benchmark]: TraceAbstraction took 67057.56 ms. Allocated memory was 195.0 MB in the beginning and 3.9 GB in the end (delta: 3.7 GB). Free memory was 156.6 MB in the beginning and 3.4 GB in the end (delta: -3.3 GB). Peak memory consumption was 437.9 MB. Max. memory is 8.0 GB. [2021-07-01 13:16:53,103 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 0.09 ms. Allocated memory is still 195.0 MB. Free memory is still 175.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 23.66 ms. Allocated memory is still 195.0 MB. Free memory was 174.4 MB in the beginning and 172.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 9.75 ms. Allocated memory is still 195.0 MB. Free memory was 172.7 MB in the beginning and 171.6 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 206.13 ms. Allocated memory is still 195.0 MB. Free memory was 171.6 MB in the beginning and 156.9 MB in the end (delta: 14.7 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 67057.56 ms. Allocated memory was 195.0 MB in the beginning and 3.9 GB in the end (delta: 3.7 GB). Free memory was 156.6 MB in the beginning and 3.4 GB in the end (delta: -3.3 GB). Peak memory consumption was 437.9 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 2806818, positive: 2399792, positive conditional: 2397909, positive unconditional: 1883, negative: 407026, negative conditional: 406930, negative unconditional: 96, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 2621866, positive: 2399792, positive conditional: 2397909, positive unconditional: 1883, negative: 222074, negative conditional: 221978, negative unconditional: 96, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 2621866, positive: 2399792, positive conditional: 0, positive unconditional: 2399792, negative: 222074, negative conditional: 0, negative unconditional: 222074, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1483, positive: 1408, positive conditional: 0, positive unconditional: 1408, negative: 75, negative conditional: 0, negative unconditional: 75, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1483, positive: 1342, positive conditional: 0, positive unconditional: 1342, negative: 141, negative conditional: 0, negative unconditional: 141, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 141, positive: 66, positive conditional: 0, positive unconditional: 66, negative: 75, negative conditional: 0, negative unconditional: 75, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 141, positive: 66, positive conditional: 0, positive unconditional: 66, negative: 75, negative conditional: 0, negative unconditional: 75, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 354, positive: 149, positive conditional: 0, positive unconditional: 149, negative: 205, negative conditional: 0, negative unconditional: 205, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2621866, positive: 2398384, positive conditional: 0, positive unconditional: 2398384, negative: 221999, negative conditional: 0, negative unconditional: 221999, unknown: 1483, unknown conditional: 0, unknown unconditional: 1483] , Statistics on independence cache: Total cache size (in pairs): 1483, Positive cache size: 1408, Positive conditional cache size: 0, Positive unconditional cache size: 1408, Negative cache size: 75, Negative conditional cache size: 0, Negative unconditional cache size: 75 ], Maximal queried relation: 0, Independence queries for same thread: 184952 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 54904, Number of persistent set computation: 804890, Number of trivial persistent sets: 803621, Underlying independence relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 2806818, positive: 2399792, positive conditional: 2397909, positive unconditional: 1883, negative: 407026, negative conditional: 406930, negative unconditional: 96, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 2621866, positive: 2399792, positive conditional: 2397909, positive unconditional: 1883, negative: 222074, negative conditional: 221978, negative unconditional: 96, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 2621866, positive: 2399792, positive conditional: 0, positive unconditional: 2399792, negative: 222074, negative conditional: 0, negative unconditional: 222074, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1483, positive: 1408, positive conditional: 0, positive unconditional: 1408, negative: 75, negative conditional: 0, negative unconditional: 75, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1483, positive: 1342, positive conditional: 0, positive unconditional: 1342, negative: 141, negative conditional: 0, negative unconditional: 141, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 141, positive: 66, positive conditional: 0, positive unconditional: 66, negative: 75, negative conditional: 0, negative unconditional: 75, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 141, positive: 66, positive conditional: 0, positive unconditional: 66, negative: 75, negative conditional: 0, negative unconditional: 75, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 354, positive: 149, positive conditional: 0, positive unconditional: 149, negative: 205, negative conditional: 0, negative unconditional: 205, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2621866, positive: 2398384, positive conditional: 0, positive unconditional: 2398384, negative: 221999, negative conditional: 0, negative unconditional: 221999, unknown: 1483, unknown conditional: 0, unknown unconditional: 1483] , Statistics on independence cache: Total cache size (in pairs): 1483, Positive cache size: 1408, Positive conditional cache size: 0, Positive unconditional cache size: 1408, Negative cache size: 75, Negative conditional cache size: 0, Negative unconditional cache size: 75 ], Maximal queried relation: 0, Independence queries for same thread: 184952 - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 30905, positive: 28315, positive conditional: 26756, positive unconditional: 1559, negative: 2590, negative conditional: 2547, negative unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 28501, positive: 28315, positive conditional: 26756, positive unconditional: 1559, negative: 186, negative conditional: 143, negative unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 28501, positive: 28310, positive conditional: 0, positive unconditional: 28310, negative: 191, negative conditional: 0, negative unconditional: 191, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1220, positive: 1183, positive conditional: 0, positive unconditional: 1183, negative: 37, negative conditional: 0, negative unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1220, positive: 1161, positive conditional: 0, positive unconditional: 1161, negative: 59, negative conditional: 0, negative unconditional: 59, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 59, positive: 22, positive conditional: 0, positive unconditional: 22, negative: 37, negative conditional: 0, negative unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 65, positive: 24, positive conditional: 2, positive unconditional: 22, negative: 41, negative conditional: 4, negative unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 93, positive: 32, positive conditional: 3, positive unconditional: 29, negative: 62, negative conditional: 4, negative unconditional: 58, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 28501, positive: 27127, positive conditional: 0, positive unconditional: 27127, negative: 154, negative conditional: 0, negative unconditional: 154, unknown: 1220, unknown conditional: 0, unknown unconditional: 1220] , Statistics on independence cache: Total cache size (in pairs): 1226, Positive cache size: 1185, Positive conditional cache size: 2, Positive unconditional cache size: 1183, Negative cache size: 41, Negative conditional cache size: 4, Negative unconditional cache size: 37, SemanticConditionEliminator.Independence Queries: [ total: 345, positive: 5, positive conditional: 5, positive unconditional: 0, negative: 340, negative conditional: 9, negative unconditional: 331, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 345, positive: 5, positive conditional: 5, positive unconditional: 0, negative: 340, negative conditional: 9, negative unconditional: 331, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 65, positive: 24, positive conditional: 2, positive unconditional: 22, negative: 41, negative conditional: 4, negative unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 93, positive: 32, positive conditional: 3, positive unconditional: 29, negative: 62, negative conditional: 4, negative unconditional: 58, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 345, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 336, negative conditional: 5, negative unconditional: 331, unknown: 6, unknown conditional: 6, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1226, Positive cache size: 1185, Positive conditional cache size: 2, Positive unconditional cache size: 1183, Negative cache size: 41, Negative conditional cache size: 4, Negative unconditional cache size: 37, Eliminated conditions: 300, SemanticConditionEliminator.Independence Queries: [ total: 345, positive: 5, positive conditional: 5, positive unconditional: 0, negative: 340, negative conditional: 9, negative unconditional: 331, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 345, positive: 5, positive conditional: 5, positive unconditional: 0, negative: 340, negative conditional: 9, negative unconditional: 331, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 65, positive: 24, positive conditional: 2, positive unconditional: 22, negative: 41, negative conditional: 4, negative unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 93, positive: 32, positive conditional: 3, positive unconditional: 29, negative: 62, negative conditional: 4, negative unconditional: 58, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 345, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 336, negative conditional: 5, negative unconditional: 331, unknown: 6, unknown conditional: 6, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1226, Positive cache size: 1185, Positive conditional cache size: 2, Positive unconditional cache size: 1183, Negative cache size: 41, Negative conditional cache size: 4, Negative unconditional cache size: 37, Eliminated conditions: 300, SemanticConditionEliminator.Independence Queries: [ total: 345, positive: 5, positive conditional: 5, positive unconditional: 0, negative: 340, negative conditional: 9, negative unconditional: 331, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 345, positive: 5, positive conditional: 5, positive unconditional: 0, negative: 340, negative conditional: 9, negative unconditional: 331, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 65, positive: 24, positive conditional: 2, positive unconditional: 22, negative: 41, negative conditional: 4, negative unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 93, positive: 32, positive conditional: 3, positive unconditional: 29, negative: 62, negative conditional: 4, negative unconditional: 58, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 345, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 336, negative conditional: 5, negative unconditional: 331, unknown: 6, unknown conditional: 6, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1226, Positive cache size: 1185, Positive conditional cache size: 2, Positive unconditional cache size: 1183, Negative cache size: 41, Negative conditional cache size: 4, Negative unconditional cache size: 37, Eliminated conditions: 300 ], Maximal queried relation: 3, Independence queries for same thread: 2404 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 1131, Number of persistent set computation: 9510, Number of trivial persistent sets: 9457, Underlying independence relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 30905, positive: 28315, positive conditional: 26756, positive unconditional: 1559, negative: 2590, negative conditional: 2547, negative unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 28501, positive: 28315, positive conditional: 26756, positive unconditional: 1559, negative: 186, negative conditional: 143, negative unconditional: 43, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 28501, positive: 28310, positive conditional: 0, positive unconditional: 28310, negative: 191, negative conditional: 0, negative unconditional: 191, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1220, positive: 1183, positive conditional: 0, positive unconditional: 1183, negative: 37, negative conditional: 0, negative unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1220, positive: 1161, positive conditional: 0, positive unconditional: 1161, negative: 59, negative conditional: 0, negative unconditional: 59, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 59, positive: 22, positive conditional: 0, positive unconditional: 22, negative: 37, negative conditional: 0, negative unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 65, positive: 24, positive conditional: 2, positive unconditional: 22, negative: 41, negative conditional: 4, negative unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 93, positive: 32, positive conditional: 3, positive unconditional: 29, negative: 62, negative conditional: 4, negative unconditional: 58, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 28501, positive: 27127, positive conditional: 0, positive unconditional: 27127, negative: 154, negative conditional: 0, negative unconditional: 154, unknown: 1220, unknown conditional: 0, unknown unconditional: 1220] , Statistics on independence cache: Total cache size (in pairs): 1226, Positive cache size: 1185, Positive conditional cache size: 2, Positive unconditional cache size: 1183, Negative cache size: 41, Negative conditional cache size: 4, Negative unconditional cache size: 37, SemanticConditionEliminator.Independence Queries: [ total: 345, positive: 5, positive conditional: 5, positive unconditional: 0, negative: 340, negative conditional: 9, negative unconditional: 331, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 345, positive: 5, positive conditional: 5, positive unconditional: 0, negative: 340, negative conditional: 9, negative unconditional: 331, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 65, positive: 24, positive conditional: 2, positive unconditional: 22, negative: 41, negative conditional: 4, negative unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 93, positive: 32, positive conditional: 3, positive unconditional: 29, negative: 62, negative conditional: 4, negative unconditional: 58, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 345, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 336, negative conditional: 5, negative unconditional: 331, unknown: 6, unknown conditional: 6, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1226, Positive cache size: 1185, Positive conditional cache size: 2, Positive unconditional cache size: 1183, Negative cache size: 41, Negative conditional cache size: 4, Negative unconditional cache size: 37, Eliminated conditions: 300, SemanticConditionEliminator.Independence Queries: [ total: 345, positive: 5, positive conditional: 5, positive unconditional: 0, negative: 340, negative conditional: 9, negative unconditional: 331, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 345, positive: 5, positive conditional: 5, positive unconditional: 0, negative: 340, negative conditional: 9, negative unconditional: 331, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 65, positive: 24, positive conditional: 2, positive unconditional: 22, negative: 41, negative conditional: 4, negative unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 93, positive: 32, positive conditional: 3, positive unconditional: 29, negative: 62, negative conditional: 4, negative unconditional: 58, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 345, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 336, negative conditional: 5, negative unconditional: 331, unknown: 6, unknown conditional: 6, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1226, Positive cache size: 1185, Positive conditional cache size: 2, Positive unconditional cache size: 1183, Negative cache size: 41, Negative conditional cache size: 4, Negative unconditional cache size: 37, Eliminated conditions: 300, SemanticConditionEliminator.Independence Queries: [ total: 345, positive: 5, positive conditional: 5, positive unconditional: 0, negative: 340, negative conditional: 9, negative unconditional: 331, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 345, positive: 5, positive conditional: 5, positive unconditional: 0, negative: 340, negative conditional: 9, negative unconditional: 331, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 65, positive: 24, positive conditional: 2, positive unconditional: 22, negative: 41, negative conditional: 4, negative unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 93, positive: 32, positive conditional: 3, positive unconditional: 29, negative: 62, negative conditional: 4, negative unconditional: 58, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 345, positive: 3, positive conditional: 3, positive unconditional: 0, negative: 336, negative conditional: 5, negative unconditional: 331, unknown: 6, unknown conditional: 6, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1226, Positive cache size: 1185, Positive conditional cache size: 2, Positive unconditional cache size: 1183, Negative cache size: 41, Negative conditional cache size: 4, Negative unconditional cache size: 37, Eliminated conditions: 300 ], Maximal queried relation: 3, Independence queries for same thread: 2404 - CounterExampleResult [Line: 39]: assertion can be violated assertion can be violated We found a FailurePath: [L14] 0 pendingIo := 1; VAL [pendingIo=1] [L15] 0 stopped := false; VAL [pendingIo=1, stopped=false] [L16] 0 stoppingEvent := false; VAL [pendingIo=1, stopped=false, stoppingEvent=false] [L17] 0 stoppingFlag := false; VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L19] FORK 0 fork 0 ServerThread(); VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L21] FORK 0 fork 1 DeviceThreadWithAssert(); VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L22] FORK 0 fork 2 DeviceThread(); VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L23] FORK 0 fork 3 DeviceThread(); VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L61] 4 assume !stoppingFlag; VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L24] FORK 0 fork 4 DeviceThread(); VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L61] 2 assume !stoppingFlag; VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L62] 2 pendingIo := pendingIo + 1; VAL [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=false] [L62] 4 pendingIo := pendingIo + 1; VAL [pendingIo=3, stopped=false, stoppingEvent=false, stoppingFlag=false] [L70] 4 pendingIo := pendingIo - 1; [L71] COND FALSE 4 !(pendingIo == 0) VAL [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=false] [L39] 2 assert !stopped; VAL [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=false] [L61] 4 assume !stoppingFlag; VAL [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=false] [L62] 4 pendingIo := pendingIo + 1; VAL [pendingIo=3, stopped=false, stoppingEvent=false, stoppingFlag=false] [L70] 2 pendingIo := pendingIo - 1; [L71] COND FALSE 2 !(pendingIo == 0) VAL [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=false] [L70] 4 pendingIo := pendingIo - 1; [L71] COND FALSE 4 !(pendingIo == 0) VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L61] 4 assume !stoppingFlag; VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L25] FORK 0 fork 5 DeviceThread(); VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L61] 2 assume !stoppingFlag; VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L62] 2 pendingIo := pendingIo + 1; VAL [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=false] [L39] 2 assert !stopped; VAL [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=false] [L70] 2 pendingIo := pendingIo - 1; [L71] COND FALSE 2 !(pendingIo == 0) VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L61] 2 assume !stoppingFlag; VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L83] 1 stoppingFlag := true; VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=true] [L93] 1 pendingIo := pendingIo - 1; [L94] COND TRUE 1 pendingIo == 0 [L95] 1 stoppingEvent := true; VAL [pendingIo=0, stopped=false, stoppingEvent=true, stoppingFlag=true] [L85] 1 assume stoppingEvent; VAL [pendingIo=0, stopped=false, stoppingEvent=true, stoppingFlag=true] [L86] 1 stopped := true; VAL [pendingIo=0, stopped=true, stoppingEvent=true, stoppingFlag=true] [L26] FORK 0 fork 6 DeviceThread(); VAL [pendingIo=0, stopped=true, stoppingEvent=true, stoppingFlag=true] [L62] 2 pendingIo := pendingIo + 1; VAL [pendingIo=1, stopped=true, stoppingEvent=true, stoppingFlag=true] [L39] 2 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 11 procedures, 68 locations, 9 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 64416.2ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 21.3ms, PartialOrderReductionTime: 64299.9ms, 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: DeviceThreadWithAssertThread1of1ForFork1 with 1 thread instances CFG has 11 procedures, 68 locations, 9 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2560.6ms, OverallIterations: 4, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1.0ms, PartialOrderReductionTime: 1555.6ms, 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: 7.6ms SsaConstructionTime, 37.0ms SatisfiabilityAnalysisTime, 550.6ms InterpolantComputationTime, 133 NumberOfCodeBlocks, 133 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 91 ConstructedInterpolants, 0 QuantifiedInterpolants, 363 SizeOfPredicates, 1 NumberOfNonLiveVariables, 52 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 11/16 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...