/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-NewStatesSleep-NoLbe-Symm.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 11:00:46,089 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-01 11:00:46,090 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-01 11:00:46,123 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-01 11:00:46,166 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-01 11:00:46,167 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-01 11:00:46,167 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-01 11:00:46,170 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-NewStatesSleep-NoLbe-Symm.epf [2021-07-01 11:00:46,201 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-01 11:00:46,202 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-01 11:00:46,202 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-01 11:00:46,202 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-01 11:00:46,204 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-01 11:00:46,204 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-01 11:00:46,204 INFO L138 SettingsManager]: * Use SBE=true [2021-07-01 11:00:46,205 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-01 11:00:46,205 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-01 11:00:46,205 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-01 11:00:46,205 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-01 11:00:46,205 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-01 11:00:46,206 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-01 11:00:46,206 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-01 11:00:46,206 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-01 11:00:46,206 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-01 11:00:46,206 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-01 11:00:46,206 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-01 11:00:46,206 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-01 11:00:46,206 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-01 11:00:46,206 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-01 11:00:46,206 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-01 11:00:46,207 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-01 11:00:46,207 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-01 11:00:46,207 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-01 11:00:46,224 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-01 11:00:46,224 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-01 11:00:46,225 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-01 11:00:46,225 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-01 11:00:46,225 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-01 11:00:46,225 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-07-01 11:00:46,225 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-01 11:00:46,225 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2021-07-01 11:00:46,225 INFO L138 SettingsManager]: * Limit POR to symmetric independence in concurrent analysis=true [2021-07-01 11:00:46,225 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-01 11:00:46,529 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-01 11:00:46,546 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-01 11:00:46,548 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-01 11:00:46,549 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-01 11:00:46,550 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-01 11:00:46,551 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-incorrect06.bpl [2021-07-01 11:00:46,551 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-incorrect06.bpl' [2021-07-01 11:00:46,570 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-01 11:00:46,571 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-01 11:00:46,584 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-01 11:00:46,584 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-01 11:00:46,585 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-01 11:00:46,596 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 11:00:46" (1/1) ... [2021-07-01 11:00:46,602 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 11:00:46" (1/1) ... [2021-07-01 11:00:46,616 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-01 11:00:46,617 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-01 11:00:46,618 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-01 11:00:46,618 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-01 11:00:46,625 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 11:00:46" (1/1) ... [2021-07-01 11:00:46,625 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 11:00:46" (1/1) ... [2021-07-01 11:00:46,626 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 11:00:46" (1/1) ... [2021-07-01 11:00:46,626 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 11:00:46" (1/1) ... [2021-07-01 11:00:46,628 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 11:00:46" (1/1) ... [2021-07-01 11:00:46,630 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 11:00:46" (1/1) ... [2021-07-01 11:00:46,631 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 11:00:46" (1/1) ... [2021-07-01 11:00:46,632 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-01 11:00:46,632 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-01 11:00:46,633 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-01 11:00:46,633 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-01 11:00:46,634 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "bluetooth-incorrect06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:00:46" (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 11:00:46,697 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThreadWithAssert given in one single declaration [2021-07-01 11:00:46,697 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThreadWithAssert [2021-07-01 11:00:46,697 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThreadWithAssert [2021-07-01 11:00:46,697 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThread given in one single declaration [2021-07-01 11:00:46,697 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThread [2021-07-01 11:00:46,697 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThread [2021-07-01 11:00:46,698 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ServerThread given in one single declaration [2021-07-01 11:00:46,698 INFO L130 BoogieDeclarations]: Found specification of procedure ServerThread [2021-07-01 11:00:46,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ServerThread [2021-07-01 11:00:46,698 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-01 11:00:46,698 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-01 11:00:46,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-01 11:00:46,699 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 11:00:46,918 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-01 11:00:46,918 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-07-01 11:00:46,930 INFO L202 PluginConnector]: Adding new model bluetooth-incorrect06.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:00:46 BoogieIcfgContainer [2021-07-01 11:00:46,930 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-01 11:00:46,932 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-01 11:00:46,932 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-01 11:00:46,933 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-01 11:00:46,934 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-incorrect06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:00:46" (1/2) ... [2021-07-01 11:00:46,934 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4759e813 and model type bluetooth-incorrect06.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 11:00:46, skipping insertion in model container [2021-07-01 11:00:46,934 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 11:00:46" (2/2) ... [2021-07-01 11:00:46,935 INFO L111 eAbstractionObserver]: Analyzing ICFG bluetooth-incorrect06.bpl [2021-07-01 11:00:46,939 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-01 11:00:46,939 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-01 11:00:46,939 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-01 11:00:46,940 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-01 11:00:46,996 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-07-01 11:00:47,012 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 11:00:47,054 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-01 11:00:47,054 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-01 11:00:47,054 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-01 11:00:47,054 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-01 11:00:47,054 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-01 11:00:47,055 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-01 11:00:47,055 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-01 11:00:47,055 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-01 11:00:50,678 INFO L301 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE (1/2) [2021-07-01 11:00:50,680 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 11:00:50,692 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-01 11:00:50,692 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-01 11:00:50,692 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-01 11:00:50,692 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-01 11:00:50,692 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-01 11:00:50,692 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-01 11:00:50,692 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-01 11:00:50,692 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == DeviceThreadWithAssertThread1of1ForFork1======== [2021-07-01 11:00:50,698 INFO L430 AbstractCegarLoop]: === Iteration 1 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 11:00:50,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 11:00:50,703 INFO L82 PathProgramCache]: Analyzing trace with hash -163080637, now seen corresponding path program 1 times [2021-07-01 11:00:50,709 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 11:00:50,709 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696035251] [2021-07-01 11:00:50,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 11:00:50,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 11:00:50,790 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 11:00:50,791 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 11:00:50,791 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696035251] [2021-07-01 11:00:50,791 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696035251] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-01 11:00:50,791 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-01 11:00:50,792 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-01 11:00:50,792 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835679331] [2021-07-01 11:00:50,795 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-01 11:00:50,796 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 11:00:50,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-01 11:00:50,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-01 11:00:50,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:00:50,809 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 11:00:50,810 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 4.666666666666667) 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 11:00:50,810 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:00:50,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:00:50,907 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-01 11:00:50,907 INFO L430 AbstractCegarLoop]: === Iteration 2 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 11:00:50,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 11:00:50,907 INFO L82 PathProgramCache]: Analyzing trace with hash -666974634, now seen corresponding path program 1 times [2021-07-01 11:00:50,907 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 11:00:50,907 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020107537] [2021-07-01 11:00:50,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 11:00:50,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 11:00:50,917 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 11:00:50,917 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 11:00:50,917 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020107537] [2021-07-01 11:00:50,917 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020107537] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-01 11:00:50,917 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-01 11:00:50,917 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-07-01 11:00:50,918 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158237898] [2021-07-01 11:00:50,918 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-01 11:00:50,918 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 11:00:50,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-01 11:00:50,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-01 11:00:50,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:00:50,919 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 11:00:50,919 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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 11:00:50,919 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:00:50,919 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:00:57,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:00:57,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:00:57,074 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-01 11:00:57,074 INFO L430 AbstractCegarLoop]: === Iteration 3 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 11:00:57,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 11:00:57,075 INFO L82 PathProgramCache]: Analyzing trace with hash 204490464, now seen corresponding path program 1 times [2021-07-01 11:00:57,075 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 11:00:57,075 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348134037] [2021-07-01 11:00:57,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 11:00:57,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 11:00:57,144 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-01 11:00:57,144 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 11:00:57,144 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348134037] [2021-07-01 11:00:57,144 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348134037] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-01 11:00:57,145 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-01 11:00:57,145 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-01 11:00:57,145 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084145025] [2021-07-01 11:00:57,145 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-01 11:00:57,145 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 11:00:57,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-01 11:00:57,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2021-07-01 11:00:57,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:00:57,146 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 11:00:57,146 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-01 11:00:57,146 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:00:57,146 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:00:57,146 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:01:05,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:01:05,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:01:05,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-01 11:01:05,467 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-07-01 11:01:05,467 INFO L430 AbstractCegarLoop]: === Iteration 4 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 11:01:05,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 11:01:05,468 INFO L82 PathProgramCache]: Analyzing trace with hash -1633934474, now seen corresponding path program 1 times [2021-07-01 11:01:05,468 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 11:01:05,468 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318892871] [2021-07-01 11:01:05,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 11:01:05,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-01 11:01:05,477 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-01 11:01:05,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-01 11:01:05,480 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-01 11:01:05,492 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-01 11:01:05,493 INFO L605 BasicCegarLoop]: Counterexample might be feasible [2021-07-01 11:01:05,493 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-07-01 11:01:05,495 INFO L301 ceAbstractionStarter]: Result for error location DeviceThreadWithAssertThread1of1ForFork1 was UNSAFE (2/2) [2021-07-01 11:01:05,496 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-07-01 11:01:05,504 INFO L202 PluginConnector]: Adding new model bluetooth-incorrect06.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:01:05 BasicIcfg [2021-07-01 11:01:05,504 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-01 11:01:05,505 INFO L168 Benchmark]: Toolchain (without parser) took 18933.24 ms. Allocated memory was 203.4 MB in the beginning and 3.1 GB in the end (delta: 2.9 GB). Free memory was 184.2 MB in the beginning and 2.4 GB in the end (delta: -2.2 GB). Peak memory consumption was 721.8 MB. Max. memory is 8.0 GB. [2021-07-01 11:01:05,505 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.16 ms. Allocated memory is still 203.4 MB. Free memory is still 185.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-07-01 11:01:05,505 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.89 ms. Allocated memory is still 203.4 MB. Free memory was 184.1 MB in the beginning and 182.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-07-01 11:01:05,506 INFO L168 Benchmark]: Boogie Preprocessor took 14.27 ms. Allocated memory is still 203.4 MB. Free memory was 182.3 MB in the beginning and 181.4 MB in the end (delta: 959.3 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-07-01 11:01:05,506 INFO L168 Benchmark]: RCFGBuilder took 297.96 ms. Allocated memory is still 203.4 MB. Free memory was 181.3 MB in the beginning and 166.9 MB in the end (delta: 14.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2021-07-01 11:01:05,506 INFO L168 Benchmark]: TraceAbstraction took 18572.38 ms. Allocated memory was 203.4 MB in the beginning and 3.1 GB in the end (delta: 2.9 GB). Free memory was 166.5 MB in the beginning and 2.4 GB in the end (delta: -2.2 GB). Peak memory consumption was 702.9 MB. Max. memory is 8.0 GB. [2021-07-01 11:01:05,508 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 0.16 ms. Allocated memory is still 203.4 MB. Free memory is still 185.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 31.89 ms. Allocated memory is still 203.4 MB. Free memory was 184.1 MB in the beginning and 182.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 14.27 ms. Allocated memory is still 203.4 MB. Free memory was 182.3 MB in the beginning and 181.4 MB in the end (delta: 959.3 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 297.96 ms. Allocated memory is still 203.4 MB. Free memory was 181.3 MB in the beginning and 166.9 MB in the end (delta: 14.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 18572.38 ms. Allocated memory was 203.4 MB in the beginning and 3.1 GB in the end (delta: 2.9 GB). Free memory was 166.5 MB in the beginning and 2.4 GB in the end (delta: -2.2 GB). Peak memory consumption was 702.9 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: 889650, positive: 756368, positive conditional: 756368, positive unconditional: 0, negative: 133282, negative conditional: 133282, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 843866, positive: 756368, positive conditional: 756368, positive unconditional: 0, negative: 87498, negative conditional: 87498, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 843866, positive: 756368, positive conditional: 0, positive unconditional: 756368, negative: 87498, negative conditional: 0, negative unconditional: 87498, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 375, positive: 338, positive conditional: 0, positive unconditional: 338, 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: 375, positive: 313, positive conditional: 0, positive unconditional: 313, negative: 62, negative conditional: 0, negative unconditional: 62, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 62, positive: 25, positive conditional: 0, positive unconditional: 25, 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: 62, positive: 25, positive conditional: 0, positive unconditional: 25, negative: 37, negative conditional: 0, negative unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 292, positive: 137, positive conditional: 0, positive unconditional: 137, negative: 155, negative conditional: 0, negative unconditional: 155, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 843866, positive: 756030, positive conditional: 0, positive unconditional: 756030, negative: 87461, negative conditional: 0, negative unconditional: 87461, unknown: 375, unknown conditional: 0, unknown unconditional: 375] , Statistics on independence cache: Total cache size (in pairs): 375, Positive cache size: 338, Positive conditional cache size: 0, Positive unconditional cache size: 338, Negative cache size: 37, Negative conditional cache size: 0, Negative unconditional cache size: 37 ], Maximal queried relation: 0, Independence queries for same thread: 45784 - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1917930, positive: 1708918, positive conditional: 1708918, positive unconditional: 0, negative: 209012, negative conditional: 209012, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 1844499, positive: 1708918, positive conditional: 1708918, positive unconditional: 0, negative: 135581, negative conditional: 135581, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 1844499, positive: 1687987, positive conditional: 0, positive unconditional: 1687987, negative: 156512, negative conditional: 0, negative unconditional: 156512, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 483, positive: 437, positive conditional: 0, positive unconditional: 437, negative: 46, negative conditional: 0, negative unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 483, positive: 406, positive conditional: 0, positive unconditional: 406, negative: 77, negative conditional: 0, negative unconditional: 77, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 77, positive: 31, positive conditional: 0, positive unconditional: 31, negative: 46, negative conditional: 0, negative unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 156, positive: 96, positive conditional: 65, positive unconditional: 31, negative: 60, negative conditional: 14, negative unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 422, positive: 306, positive conditional: 182, positive unconditional: 124, negative: 116, negative conditional: 26, negative unconditional: 90, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1844499, positive: 1687550, positive conditional: 0, positive unconditional: 1687550, negative: 156466, negative conditional: 0, negative unconditional: 156466, unknown: 483, unknown conditional: 0, unknown unconditional: 483] , Statistics on independence cache: Total cache size (in pairs): 562, Positive cache size: 502, Positive conditional cache size: 65, Positive unconditional cache size: 437, Negative cache size: 60, Negative conditional cache size: 14, Negative unconditional cache size: 46, SemanticConditionEliminator.Independence Queries: [ total: 383582, positive: 20931, positive conditional: 20931, positive unconditional: 0, negative: 362651, negative conditional: 8076, negative unconditional: 354575, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 383582, positive: 20931, positive conditional: 20931, positive unconditional: 0, negative: 362651, negative conditional: 8076, negative unconditional: 354575, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 156, positive: 96, positive conditional: 65, positive unconditional: 31, negative: 60, negative conditional: 14, negative unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 422, positive: 306, positive conditional: 182, positive unconditional: 124, negative: 116, negative conditional: 26, negative unconditional: 90, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 383582, positive: 20866, positive conditional: 20866, positive unconditional: 0, negative: 362637, negative conditional: 8062, negative unconditional: 354575, unknown: 79, unknown conditional: 79, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 562, Positive cache size: 502, Positive conditional cache size: 65, Positive unconditional cache size: 437, Negative cache size: 60, Negative conditional cache size: 14, Negative unconditional cache size: 46, Eliminated conditions: 354575, SemanticConditionEliminator.Independence Queries: [ total: 383582, positive: 20931, positive conditional: 20931, positive unconditional: 0, negative: 362651, negative conditional: 8076, negative unconditional: 354575, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 383582, positive: 20931, positive conditional: 20931, positive unconditional: 0, negative: 362651, negative conditional: 8076, negative unconditional: 354575, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 156, positive: 96, positive conditional: 65, positive unconditional: 31, negative: 60, negative conditional: 14, negative unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 422, positive: 306, positive conditional: 182, positive unconditional: 124, negative: 116, negative conditional: 26, negative unconditional: 90, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 383582, positive: 20866, positive conditional: 20866, positive unconditional: 0, negative: 362637, negative conditional: 8062, negative unconditional: 354575, unknown: 79, unknown conditional: 79, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 562, Positive cache size: 502, Positive conditional cache size: 65, Positive unconditional cache size: 437, Negative cache size: 60, Negative conditional cache size: 14, Negative unconditional cache size: 46, Eliminated conditions: 354575, SemanticConditionEliminator.Independence Queries: [ total: 383582, positive: 20931, positive conditional: 20931, positive unconditional: 0, negative: 362651, negative conditional: 8076, negative unconditional: 354575, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 383582, positive: 20931, positive conditional: 20931, positive unconditional: 0, negative: 362651, negative conditional: 8076, negative unconditional: 354575, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 156, positive: 96, positive conditional: 65, positive unconditional: 31, negative: 60, negative conditional: 14, negative unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 422, positive: 306, positive conditional: 182, positive unconditional: 124, negative: 116, negative conditional: 26, negative unconditional: 90, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 383582, positive: 20866, positive conditional: 20866, positive unconditional: 0, negative: 362637, negative conditional: 8062, negative unconditional: 354575, unknown: 79, unknown conditional: 79, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 562, Positive cache size: 502, Positive conditional cache size: 65, Positive unconditional cache size: 437, Negative cache size: 60, Negative conditional cache size: 14, Negative unconditional cache size: 46, Eliminated conditions: 354575 ], Maximal queried relation: 3, Independence queries for same thread: 73431 - 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] [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] [L62] 2 pendingIo := pendingIo + 1; VAL [pendingIo=1, stopped=false, stoppingEvent=true, stoppingFlag=true] [L85] 1 assume stoppingEvent; VAL [pendingIo=1, stopped=false, stoppingEvent=true, stoppingFlag=true] [L86] 1 stopped := true; 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: 3654.0ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 14.9ms, PartialOrderReductionTime: 3591.5ms, 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: 14809.0ms, OverallIterations: 4, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 2.3ms, PartialOrderReductionTime: 14575.6ms, 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: 4.3ms SsaConstructionTime, 39.9ms SatisfiabilityAnalysisTime, 81.7ms InterpolantComputationTime, 61 NumberOfCodeBlocks, 61 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 45 ConstructedInterpolants, 0 QuantifiedInterpolants, 142 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 8/8 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...