/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-DelaySleep-NoLbe-Random42.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth05-incorrect.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d310483fe8b4879eee5de19363f50e4b839cc4ec-d310483 [2021-06-24 19:12:50,078 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-24 19:12:50,080 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-24 19:12:50,109 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-24 19:12:50,109 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-24 19:12:50,112 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-24 19:12:50,113 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-24 19:12:50,115 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-24 19:12:50,117 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-24 19:12:50,117 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-24 19:12:50,118 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-24 19:12:50,119 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-24 19:12:50,119 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-24 19:12:50,125 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-24 19:12:50,126 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-24 19:12:50,128 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-24 19:12:50,128 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-24 19:12:50,129 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-24 19:12:50,130 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-24 19:12:50,139 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-24 19:12:50,140 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-24 19:12:50,140 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-24 19:12:50,141 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-24 19:12:50,142 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-24 19:12:50,144 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-24 19:12:50,144 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-24 19:12:50,144 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-24 19:12:50,145 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-24 19:12:50,145 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-24 19:12:50,145 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-24 19:12:50,145 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-24 19:12:50,146 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-24 19:12:50,146 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-24 19:12:50,147 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-24 19:12:50,147 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-24 19:12:50,148 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-24 19:12:50,148 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-24 19:12:50,148 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-24 19:12:50,148 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-24 19:12:50,149 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-24 19:12:50,149 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-24 19:12:50,169 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-DelaySleep-NoLbe-Random42.epf [2021-06-24 19:12:50,201 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-24 19:12:50,202 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-24 19:12:50,202 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-24 19:12:50,202 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-24 19:12:50,204 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-24 19:12:50,204 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-24 19:12:50,204 INFO L138 SettingsManager]: * Use SBE=true [2021-06-24 19:12:50,204 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-24 19:12:50,204 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-24 19:12:50,205 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-24 19:12:50,205 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-24 19:12:50,205 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-24 19:12:50,205 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-24 19:12:50,205 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-24 19:12:50,206 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-24 19:12:50,206 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-24 19:12:50,206 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-24 19:12:50,206 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-24 19:12:50,206 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-24 19:12:50,206 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-24 19:12:50,206 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-24 19:12:50,206 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-24 19:12:50,207 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-24 19:12:50,207 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-24 19:12:50,207 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-24 19:12:50,207 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-24 19:12:50,207 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-24 19:12:50,207 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-24 19:12:50,207 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-06-24 19:12:50,207 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-24 19:12:50,207 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-24 19:12:50,207 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-24 19:12:50,208 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-24 19:12:50,208 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-06-24 19:12:50,208 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-06-24 19:12:50,208 INFO L138 SettingsManager]: * Random seed used by POR DFS order=42 WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-24 19:12:50,449 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-24 19:12:50,468 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-24 19:12:50,469 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-24 19:12:50,470 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-24 19:12:50,471 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-24 19:12:50,472 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth05-incorrect.bpl [2021-06-24 19:12:50,472 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth05-incorrect.bpl' [2021-06-24 19:12:50,497 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-24 19:12:50,498 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-24 19:12:50,500 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-24 19:12:50,500 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-24 19:12:50,500 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-24 19:12:50,510 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "bluetooth05-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 07:12:50" (1/1) ... [2021-06-24 19:12:50,517 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "bluetooth05-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 07:12:50" (1/1) ... [2021-06-24 19:12:50,527 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-24 19:12:50,528 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-24 19:12:50,528 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-24 19:12:50,528 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-24 19:12:50,532 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "bluetooth05-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 07:12:50" (1/1) ... [2021-06-24 19:12:50,533 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "bluetooth05-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 07:12:50" (1/1) ... [2021-06-24 19:12:50,533 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "bluetooth05-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 07:12:50" (1/1) ... [2021-06-24 19:12:50,533 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "bluetooth05-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 07:12:50" (1/1) ... [2021-06-24 19:12:50,535 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "bluetooth05-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 07:12:50" (1/1) ... [2021-06-24 19:12:50,538 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "bluetooth05-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 07:12:50" (1/1) ... [2021-06-24 19:12:50,538 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "bluetooth05-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 07:12:50" (1/1) ... [2021-06-24 19:12:50,539 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-24 19:12:50,540 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-24 19:12:50,540 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-24 19:12:50,540 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-24 19:12:50,541 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "bluetooth05-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 07:12:50" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-24 19:12:50,591 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThread given in one single declaration [2021-06-24 19:12:50,592 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThread [2021-06-24 19:12:50,592 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThread [2021-06-24 19:12:50,592 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ServerThread given in one single declaration [2021-06-24 19:12:50,592 INFO L130 BoogieDeclarations]: Found specification of procedure ServerThread [2021-06-24 19:12:50,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ServerThread [2021-06-24 19:12:50,592 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-24 19:12:50,592 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-24 19:12:50,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-24 19:12:50,593 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-24 19:12:50,732 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-24 19:12:50,732 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-06-24 19:12:50,734 INFO L202 PluginConnector]: Adding new model bluetooth05-incorrect.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 07:12:50 BoogieIcfgContainer [2021-06-24 19:12:50,734 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-24 19:12:50,735 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-24 19:12:50,735 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-24 19:12:50,737 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-24 19:12:50,737 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth05-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 07:12:50" (1/2) ... [2021-06-24 19:12:50,738 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62299fbe and model type bluetooth05-incorrect.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.06 07:12:50, skipping insertion in model container [2021-06-24 19:12:50,738 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth05-incorrect.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 07:12:50" (2/2) ... [2021-06-24 19:12:50,739 INFO L111 eAbstractionObserver]: Analyzing ICFG bluetooth05-incorrect.bpl [2021-06-24 19:12:50,742 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-24 19:12:50,742 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-24 19:12:50,742 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-24 19:12:50,743 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-24 19:12:50,769 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-24 19:12:50,802 INFO L255 AbstractCegarLoop]: Starting to check reachability of 6 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-06-24 19:12:50,847 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-24 19:12:50,848 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-24 19:12:50,848 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-24 19:12:50,848 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-24 19:12:50,848 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-24 19:12:50,848 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-24 19:12:50,848 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-24 19:12:50,848 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-24 19:12:52,682 INFO L301 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE (1/6) [2021-06-24 19:12:52,685 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 19:12:52,735 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-24 19:12:52,735 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-24 19:12:52,735 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-24 19:12:52,735 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-24 19:12:52,735 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-24 19:12:52,735 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-24 19:12:52,735 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-24 19:12:52,736 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == DeviceThreadThread1of1ForFork4======== [2021-06-24 19:12:52,767 INFO L430 AbstractCegarLoop]: === Iteration 1 === [DeviceThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-06-24 19:12:52,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-24 19:12:52,772 INFO L82 PathProgramCache]: Analyzing trace with hash -1797281343, now seen corresponding path program 1 times [2021-06-24 19:12:52,777 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-24 19:12:52,778 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458381138] [2021-06-24 19:12:52,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-24 19:12:52,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-24 19:12:52,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-24 19:12:52,869 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-24 19:12:52,869 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458381138] [2021-06-24 19:12:52,869 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458381138] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-24 19:12:52,870 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-24 19:12:52,870 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-24 19:12:52,870 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870764767] [2021-06-24 19:12:52,874 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-24 19:12:52,874 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-24 19:12:52,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-24 19:12:52,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-24 19:12:52,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-24 19:12:52,923 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-24 19:12:52,923 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-24 19:12:52,924 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-24 19:12:52,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 19:12:52,972 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-24 19:12:52,973 INFO L430 AbstractCegarLoop]: === Iteration 2 === [DeviceThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-06-24 19:12:52,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-24 19:12:52,973 INFO L82 PathProgramCache]: Analyzing trace with hash -102664397, now seen corresponding path program 1 times [2021-06-24 19:12:52,973 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-24 19:12:52,974 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672806357] [2021-06-24 19:12:52,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-24 19:12:52,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-24 19:12:53,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-24 19:12:53,011 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-24 19:12:53,011 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672806357] [2021-06-24 19:12:53,011 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [672806357] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-24 19:12:53,011 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-24 19:12:53,011 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-24 19:12:53,012 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080220248] [2021-06-24 19:12:53,012 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-24 19:12:53,012 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-24 19:12:53,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-24 19:12:53,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-24 19:12:53,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-24 19:12:53,013 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-24 19:12:53,013 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-24 19:12:53,013 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-24 19:12:53,013 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-24 19:12:53,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 19:12:53,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 19:12:53,058 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-24 19:12:53,059 INFO L430 AbstractCegarLoop]: === Iteration 3 === [DeviceThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-06-24 19:12:53,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-24 19:12:53,059 INFO L82 PathProgramCache]: Analyzing trace with hash -1082766687, now seen corresponding path program 1 times [2021-06-24 19:12:53,060 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-24 19:12:53,060 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334186829] [2021-06-24 19:12:53,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-24 19:12:53,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-24 19:12:53,138 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-24 19:12:53,138 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-24 19:12:53,138 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334186829] [2021-06-24 19:12:53,139 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334186829] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-24 19:12:53,139 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-24 19:12:53,139 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-24 19:12:53,139 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757629242] [2021-06-24 19:12:53,139 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-24 19:12:53,139 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-24 19:12:53,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-24 19:12:53,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2021-06-24 19:12:53,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-24 19:12:53,140 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-24 19:12:53,140 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 6 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-24 19:12:53,141 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-24 19:12:53,141 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-24 19:12:53,141 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-24 19:12:53,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 19:12:53,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 19:12:53,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-24 19:12:53,205 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-24 19:12:53,205 INFO L430 AbstractCegarLoop]: === Iteration 4 === [DeviceThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-06-24 19:12:53,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-24 19:12:53,206 INFO L82 PathProgramCache]: Analyzing trace with hash -864971097, now seen corresponding path program 1 times [2021-06-24 19:12:53,206 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-24 19:12:53,207 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643087530] [2021-06-24 19:12:53,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-24 19:12:53,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-24 19:12:53,219 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-24 19:12:53,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-24 19:12:53,231 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-24 19:12:53,280 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-06-24 19:12:53,280 INFO L605 BasicCegarLoop]: Counterexample might be feasible [2021-06-24 19:12:53,280 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-24 19:12:53,282 INFO L301 ceAbstractionStarter]: Result for error location DeviceThreadThread1of1ForFork4 was UNSAFE (2/6) [2021-06-24 19:12:53,283 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-24 19:12:53,315 INFO L202 PluginConnector]: Adding new model bluetooth05-incorrect.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.06 07:12:53 BasicIcfg [2021-06-24 19:12:53,317 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-24 19:12:53,321 INFO L168 Benchmark]: Toolchain (without parser) took 2819.36 ms. Allocated memory was 195.0 MB in the beginning and 411.0 MB in the end (delta: 216.0 MB). Free memory was 174.4 MB in the beginning and 357.3 MB in the end (delta: -182.9 MB). Peak memory consumption was 89.2 MB. Max. memory is 8.0 GB. [2021-06-24 19:12:53,321 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.13 ms. Allocated memory is still 195.0 MB. Free memory is still 175.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-06-24 19:12:53,332 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.31 ms. Allocated memory is still 195.0 MB. Free memory was 174.3 MB in the beginning and 172.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-06-24 19:12:53,332 INFO L168 Benchmark]: Boogie Preprocessor took 11.44 ms. Allocated memory is still 195.0 MB. Free memory was 172.5 MB in the beginning and 171.6 MB in the end (delta: 900.0 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-06-24 19:12:53,332 INFO L168 Benchmark]: RCFGBuilder took 193.95 ms. Allocated memory is still 195.0 MB. Free memory was 171.6 MB in the beginning and 159.2 MB in the end (delta: 12.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-06-24 19:12:53,335 INFO L168 Benchmark]: TraceAbstraction took 2582.26 ms. Allocated memory was 195.0 MB in the beginning and 411.0 MB in the end (delta: 216.0 MB). Free memory was 158.7 MB in the beginning and 357.3 MB in the end (delta: -198.6 MB). Peak memory consumption was 73.4 MB. Max. memory is 8.0 GB. [2021-06-24 19:12:53,336 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.13 ms. Allocated memory is still 195.0 MB. Free memory is still 175.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 27.31 ms. Allocated memory is still 195.0 MB. Free memory was 174.3 MB in the beginning and 172.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 11.44 ms. Allocated memory is still 195.0 MB. Free memory was 172.5 MB in the beginning and 171.6 MB in the end (delta: 900.0 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 193.95 ms. Allocated memory is still 195.0 MB. Free memory was 171.6 MB in the beginning and 159.2 MB in the end (delta: 12.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2582.26 ms. Allocated memory was 195.0 MB in the beginning and 411.0 MB in the end (delta: 216.0 MB). Free memory was 158.7 MB in the beginning and 357.3 MB in the end (delta: -198.6 MB). Peak memory consumption was 73.4 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: 97471, positive: 79718, positive conditional: 79718, positive unconditional: 0, negative: 17753, negative conditional: 17753, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 85731, positive: 79718, positive conditional: 79718, positive unconditional: 0, negative: 6013, negative conditional: 6013, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 85731, positive: 79718, positive conditional: 0, positive unconditional: 79718, negative: 6013, negative conditional: 0, negative unconditional: 6013, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 744, positive: 696, positive conditional: 0, positive unconditional: 696, negative: 48, negative conditional: 0, negative unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 744, positive: 649, positive conditional: 0, positive unconditional: 649, negative: 95, negative conditional: 0, negative unconditional: 95, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 95, positive: 47, positive conditional: 0, positive unconditional: 47, negative: 48, negative conditional: 0, negative unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 95, positive: 47, positive conditional: 0, positive unconditional: 47, negative: 48, negative conditional: 0, negative unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 340, positive: 183, positive conditional: 0, positive unconditional: 183, negative: 157, negative conditional: 0, negative unconditional: 157, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 85731, positive: 79022, positive conditional: 0, positive unconditional: 79022, negative: 5965, negative conditional: 0, negative unconditional: 5965, unknown: 744, unknown conditional: 0, unknown unconditional: 744] , Statistics on independence cache: Total cache size (in pairs): 744, Positive cache size: 696, Positive conditional cache size: 0, Positive unconditional cache size: 696, Negative cache size: 48, Negative conditional cache size: 0, Negative unconditional cache size: 48 ], Maximal queried relation: 0, Independence queries for same thread: 11740 - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 6450, positive: 5999, positive conditional: 5999, positive unconditional: 0, negative: 451, negative conditional: 451, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 6025, positive: 5999, positive conditional: 5999, positive unconditional: 0, negative: 26, negative conditional: 26, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 6025, positive: 5993, positive conditional: 0, positive unconditional: 5993, negative: 32, negative conditional: 0, negative unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 237, positive: 227, positive conditional: 0, positive unconditional: 227, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 237, positive: 219, positive conditional: 0, positive unconditional: 219, negative: 18, negative conditional: 0, negative unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 18, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 23, positive: 10, positive conditional: 2, positive unconditional: 8, negative: 13, negative conditional: 3, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 52, positive: 18, positive conditional: 3, positive unconditional: 16, negative: 33, negative conditional: 2, negative unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 6025, positive: 5766, positive conditional: 0, positive unconditional: 5766, negative: 22, negative conditional: 0, negative unconditional: 22, unknown: 237, unknown conditional: 0, unknown unconditional: 237] , Statistics on independence cache: Total cache size (in pairs): 242, Positive cache size: 229, Positive conditional cache size: 2, Positive unconditional cache size: 227, Negative cache size: 13, Negative conditional cache size: 3, Negative unconditional cache size: 10, SemanticConditionEliminator.Independence Queries: [ total: 75, positive: 6, positive conditional: 6, positive unconditional: 0, negative: 69, negative conditional: 5, negative unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 75, positive: 6, positive conditional: 6, positive unconditional: 0, negative: 69, negative conditional: 5, negative unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 23, positive: 10, positive conditional: 2, positive unconditional: 8, negative: 13, negative conditional: 3, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 52, positive: 18, positive conditional: 3, positive unconditional: 16, negative: 33, negative conditional: 2, negative unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 75, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 66, negative conditional: 2, negative unconditional: 64, unknown: 5, unknown conditional: 5, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 242, Positive cache size: 229, Positive conditional cache size: 2, Positive unconditional cache size: 227, Negative cache size: 13, Negative conditional cache size: 3, Negative unconditional cache size: 10, Eliminated conditions: 64, SemanticConditionEliminator.Independence Queries: [ total: 75, positive: 6, positive conditional: 6, positive unconditional: 0, negative: 69, negative conditional: 5, negative unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 75, positive: 6, positive conditional: 6, positive unconditional: 0, negative: 69, negative conditional: 5, negative unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 23, positive: 10, positive conditional: 2, positive unconditional: 8, negative: 13, negative conditional: 3, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 52, positive: 18, positive conditional: 3, positive unconditional: 16, negative: 33, negative conditional: 2, negative unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 75, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 66, negative conditional: 2, negative unconditional: 64, unknown: 5, unknown conditional: 5, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 242, Positive cache size: 229, Positive conditional cache size: 2, Positive unconditional cache size: 227, Negative cache size: 13, Negative conditional cache size: 3, Negative unconditional cache size: 10, Eliminated conditions: 64, SemanticConditionEliminator.Independence Queries: [ total: 75, positive: 6, positive conditional: 6, positive unconditional: 0, negative: 69, negative conditional: 5, negative unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 75, positive: 6, positive conditional: 6, positive unconditional: 0, negative: 69, negative conditional: 5, negative unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 23, positive: 10, positive conditional: 2, positive unconditional: 8, negative: 13, negative conditional: 3, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 52, positive: 18, positive conditional: 3, positive unconditional: 16, negative: 33, negative conditional: 2, negative unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 75, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 66, negative conditional: 2, negative unconditional: 64, unknown: 5, unknown conditional: 5, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 242, Positive cache size: 229, Positive conditional cache size: 2, Positive unconditional cache size: 227, Negative cache size: 13, Negative conditional cache size: 3, Negative unconditional cache size: 10, Eliminated conditions: 64 ], Maximal queried relation: 3, Independence queries for same thread: 425 - CounterExampleResult [Line: 36]: assertion can be violated assertion can be violated We found a FailurePath: [L13] 0 pendingIo := 1; VAL [pendingIo=1] [L14] 0 stopped := false; VAL [pendingIo=1, stopped=false] [L15] 0 stoppingEvent := false; VAL [pendingIo=1, stopped=false, stoppingEvent=false] [L16] 0 stoppingFlag := false; VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L18] FORK 0 fork 0 ServerThread(); VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L19] FORK 0 fork 1 DeviceThread(); VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L20] FORK 0 fork 2 DeviceThread(); VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L21] FORK 0 fork 3 DeviceThread(); VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L22] FORK 0 fork 4 DeviceThread(); VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L46] 5 assume !stoppingFlag; VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L68] 1 stoppingFlag := true; VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=true] [L78] 1 pendingIo := pendingIo - 1; [L79] COND TRUE 1 pendingIo == 0 [L80] 1 stoppingEvent := true; VAL [pendingIo=0, stopped=false, stoppingEvent=true, stoppingFlag=true] [L23] FORK 0 fork 5 DeviceThread(); VAL [pendingIo=0, stopped=false, stoppingEvent=true, stoppingFlag=true] [L47] 5 pendingIo := pendingIo + 1; VAL [pendingIo=1, stopped=false, stoppingEvent=true, stoppingFlag=true] [L70] 1 assume stoppingEvent; VAL [pendingIo=1, stopped=false, stoppingEvent=true, stoppingFlag=true] [L71] 1 stopped := true; VAL [pendingIo=1, stopped=true, stoppingEvent=true, stoppingFlag=true] [L36] 5 assert !stopped; VAL [pendingIo=1, stopped=true, stoppingEvent=true, stoppingFlag=true] - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 9 procedures, 66 locations, 12 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1868.5ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 8.7ms, PartialOrderReductionTime: 1810.1ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: DeviceThreadThread1of1ForFork4 with 1 thread instances CFG has 9 procedures, 66 locations, 12 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 590.8ms, OverallIterations: 4, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1.2ms, PartialOrderReductionTime: 187.1ms, 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: 6.4ms SsaConstructionTime, 45.8ms SatisfiabilityAnalysisTime, 111.2ms InterpolantComputationTime, 88 NumberOfCodeBlocks, 88 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 64 ConstructedInterpolants, 0 QuantifiedInterpolants, 197 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 3/3 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...