/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-Random521.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-incorrect05.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-1c3aa5735269c4be989a50fc1da9ea7b9492ef29-1c3aa57 [2021-07-01 11:40:01,496 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-01 11:40:01,499 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-01 11:40:01,530 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-01 11:40:01,589 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-01 11:40:01,590 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-01 11:40:01,590 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-01 11:40:01,591 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-Random521.epf [2021-07-01 11:40:01,618 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-01 11:40:01,619 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-01 11:40:01,619 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-01 11:40:01,619 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-01 11:40:01,621 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-01 11:40:01,621 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-01 11:40:01,621 INFO L138 SettingsManager]: * Use SBE=true [2021-07-01 11:40:01,622 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-01 11:40:01,622 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-01 11:40:01,622 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-01 11:40:01,622 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-01 11:40:01,623 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-01 11:40:01,623 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-01 11:40:01,623 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-01 11:40:01,623 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-01 11:40:01,623 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-01 11:40:01,623 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-01 11:40:01,623 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-01 11:40:01,623 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-01 11:40:01,623 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-01 11:40:01,623 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-01 11:40:01,624 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-01 11:40:01,624 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-01 11:40:01,624 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-01 11:40:01,624 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-01 11:40:01,624 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-01 11:40:01,624 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-01 11:40:01,624 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-01 11:40:01,624 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-07-01 11:40:01,624 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-01 11:40:01,624 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-01 11:40:01,625 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-07-01 11:40:01,625 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-01 11:40:01,625 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2021-07-01 11:40:01,625 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-07-01 11:40:01,625 INFO L138 SettingsManager]: * Random seed used by POR DFS order=521 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-01 11:40:01,876 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-01 11:40:01,893 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-01 11:40:01,895 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-01 11:40:01,895 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-01 11:40:01,896 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-01 11:40:01,897 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-incorrect05.bpl [2021-07-01 11:40:01,897 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-incorrect05.bpl' [2021-07-01 11:40:01,922 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-01 11:40:01,923 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-01 11:40:01,924 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-01 11:40:01,924 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-01 11:40:01,925 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-01 11:40:01,933 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "bluetooth-incorrect05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:40:01" (1/1) ... [2021-07-01 11:40:01,939 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "bluetooth-incorrect05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:40:01" (1/1) ... [2021-07-01 11:40:01,951 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-01 11:40:01,953 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-01 11:40:01,953 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-01 11:40:01,953 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-01 11:40:01,958 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "bluetooth-incorrect05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:40:01" (1/1) ... [2021-07-01 11:40:01,959 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "bluetooth-incorrect05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:40:01" (1/1) ... [2021-07-01 11:40:01,959 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "bluetooth-incorrect05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:40:01" (1/1) ... [2021-07-01 11:40:01,959 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "bluetooth-incorrect05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:40:01" (1/1) ... [2021-07-01 11:40:01,961 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "bluetooth-incorrect05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:40:01" (1/1) ... [2021-07-01 11:40:01,964 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "bluetooth-incorrect05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:40:01" (1/1) ... [2021-07-01 11:40:01,965 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "bluetooth-incorrect05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:40:01" (1/1) ... [2021-07-01 11:40:01,965 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-01 11:40:01,966 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-01 11:40:01,966 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-01 11:40:01,967 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-01 11:40:01,967 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "bluetooth-incorrect05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:40:01" (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 11:40:02,017 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThreadWithAssert given in one single declaration [2021-07-01 11:40:02,017 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThreadWithAssert [2021-07-01 11:40:02,017 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThreadWithAssert [2021-07-01 11:40:02,017 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThread given in one single declaration [2021-07-01 11:40:02,017 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThread [2021-07-01 11:40:02,017 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThread [2021-07-01 11:40:02,018 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ServerThread given in one single declaration [2021-07-01 11:40:02,018 INFO L130 BoogieDeclarations]: Found specification of procedure ServerThread [2021-07-01 11:40:02,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ServerThread [2021-07-01 11:40:02,018 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-01 11:40:02,018 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-01 11:40:02,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-01 11:40:02,019 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 11:40:02,271 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-01 11:40:02,271 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-07-01 11:40:02,273 INFO L202 PluginConnector]: Adding new model bluetooth-incorrect05.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:40:02 BoogieIcfgContainer [2021-07-01 11:40:02,273 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-01 11:40:02,274 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-01 11:40:02,274 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-01 11:40:02,276 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-01 11:40:02,276 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-incorrect05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 11:40:01" (1/2) ... [2021-07-01 11:40:02,277 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4150dad9 and model type bluetooth-incorrect05.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 11:40:02, skipping insertion in model container [2021-07-01 11:40:02,277 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-incorrect05.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 11:40:02" (2/2) ... [2021-07-01 11:40:02,278 INFO L111 eAbstractionObserver]: Analyzing ICFG bluetooth-incorrect05.bpl [2021-07-01 11:40:02,282 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-01 11:40:02,282 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-01 11:40:02,282 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-01 11:40:02,282 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-01 11:40:02,311 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-07-01 11:40:02,326 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 [2021-07-01 11:40:02,391 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-01 11:40:02,391 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-01 11:40:02,391 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-01 11:40:02,391 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-01 11:40:02,392 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-01 11:40:02,392 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-01 11:40:02,392 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-01 11:40:02,392 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-01 11:40:03,884 INFO L301 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE (1/2) [2021-07-01 11:40:03,886 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 11:40:03,897 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-01 11:40:03,897 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-01 11:40:03,897 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-01 11:40:03,897 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-01 11:40:03,897 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-01 11:40:03,897 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-01 11:40:03,898 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-01 11:40:03,898 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == DeviceThreadWithAssertThread1of1ForFork1======== [2021-07-01 11:40:03,974 INFO L430 AbstractCegarLoop]: === Iteration 1 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 11:40:03,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 11:40:03,977 INFO L82 PathProgramCache]: Analyzing trace with hash 775572910, now seen corresponding path program 1 times [2021-07-01 11:40:03,983 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 11:40:03,983 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109259939] [2021-07-01 11:40:03,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 11:40:04,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 11:40:04,061 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 11:40:04,062 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 11:40:04,062 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109259939] [2021-07-01 11:40:04,063 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109259939] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-01 11:40:04,063 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-01 11:40:04,063 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-01 11:40:04,063 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096449309] [2021-07-01 11:40:04,067 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-01 11:40:04,067 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 11:40:04,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-01 11:40:04,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-01 11:40:04,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:40:04,077 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 11:40:04,078 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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 11:40:04,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:40:04,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:40:04,135 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-01 11:40:04,136 INFO L430 AbstractCegarLoop]: === Iteration 2 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 11:40:04,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 11:40:04,141 INFO L82 PathProgramCache]: Analyzing trace with hash 676966267, now seen corresponding path program 1 times [2021-07-01 11:40:04,142 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 11:40:04,142 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535236187] [2021-07-01 11:40:04,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 11:40:04,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 11:40:04,178 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 11:40:04,178 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 11:40:04,178 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535236187] [2021-07-01 11:40:04,178 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535236187] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-01 11:40:04,178 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-01 11:40:04,178 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-07-01 11:40:04,179 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631104725] [2021-07-01 11:40:04,179 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-01 11:40:04,179 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 11:40:04,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-01 11:40:04,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-01 11:40:04,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:40:04,180 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 11:40:04,180 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-01 11:40:04,180 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:40:04,180 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:40:04,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:40:04,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:40:04,245 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-01 11:40:04,245 INFO L430 AbstractCegarLoop]: === Iteration 3 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 11:40:04,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 11:40:04,245 INFO L82 PathProgramCache]: Analyzing trace with hash -1116879446, now seen corresponding path program 1 times [2021-07-01 11:40:04,246 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 11:40:04,246 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123459183] [2021-07-01 11:40:04,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 11:40:04,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 11:40:04,393 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-01 11:40:04,394 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 11:40:04,394 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123459183] [2021-07-01 11:40:04,394 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123459183] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-01 11:40:04,394 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-01 11:40:04,394 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-01 11:40:04,394 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869216545] [2021-07-01 11:40:04,395 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-01 11:40:04,395 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 11:40:04,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-01 11:40:04,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2021-07-01 11:40:04,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:40:04,396 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 11:40:04,396 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 6 states have internal predecessors, (26), 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 11:40:04,396 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:40:04,397 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:40:04,398 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 11:40:04,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:40:04,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 11:40:04,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-01 11:40:04,612 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-07-01 11:40:04,612 INFO L430 AbstractCegarLoop]: === Iteration 4 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 11:40:04,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 11:40:04,612 INFO L82 PathProgramCache]: Analyzing trace with hash 1470727956, now seen corresponding path program 1 times [2021-07-01 11:40:04,612 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 11:40:04,613 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993216616] [2021-07-01 11:40:04,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 11:40:04,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-01 11:40:04,620 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-01 11:40:04,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-01 11:40:04,626 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-01 11:40:04,642 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-01 11:40:04,642 INFO L605 BasicCegarLoop]: Counterexample might be feasible [2021-07-01 11:40:04,642 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-07-01 11:40:04,644 INFO L301 ceAbstractionStarter]: Result for error location DeviceThreadWithAssertThread1of1ForFork1 was UNSAFE (2/2) [2021-07-01 11:40:04,645 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-07-01 11:40:04,658 INFO L202 PluginConnector]: Adding new model bluetooth-incorrect05.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 11:40:04 BasicIcfg [2021-07-01 11:40:04,658 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-01 11:40:04,659 INFO L168 Benchmark]: Toolchain (without parser) took 2736.00 ms. Allocated memory was 240.1 MB in the beginning and 370.1 MB in the end (delta: 130.0 MB). Free memory was 219.0 MB in the beginning and 234.1 MB in the end (delta: -15.2 MB). Peak memory consumption was 115.4 MB. Max. memory is 8.0 GB. [2021-07-01 11:40:04,659 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.14 ms. Allocated memory is still 240.1 MB. Free memory is still 220.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-07-01 11:40:04,660 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.33 ms. Allocated memory is still 240.1 MB. Free memory was 218.9 MB in the beginning and 217.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-07-01 11:40:04,660 INFO L168 Benchmark]: Boogie Preprocessor took 13.14 ms. Allocated memory is still 240.1 MB. Free memory was 217.1 MB in the beginning and 216.2 MB in the end (delta: 868.9 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-07-01 11:40:04,660 INFO L168 Benchmark]: RCFGBuilder took 306.49 ms. Allocated memory is still 240.1 MB. Free memory was 216.1 MB in the beginning and 201.8 MB in the end (delta: 14.3 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-07-01 11:40:04,661 INFO L168 Benchmark]: TraceAbstraction took 2384.53 ms. Allocated memory was 240.1 MB in the beginning and 370.1 MB in the end (delta: 130.0 MB). Free memory was 201.3 MB in the beginning and 234.1 MB in the end (delta: -32.9 MB). Peak memory consumption was 97.6 MB. Max. memory is 8.0 GB. [2021-07-01 11:40:04,662 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 0.14 ms. Allocated memory is still 240.1 MB. Free memory is still 220.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 27.33 ms. Allocated memory is still 240.1 MB. Free memory was 218.9 MB in the beginning and 217.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 13.14 ms. Allocated memory is still 240.1 MB. Free memory was 217.1 MB in the beginning and 216.2 MB in the end (delta: 868.9 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 306.49 ms. Allocated memory is still 240.1 MB. Free memory was 216.1 MB in the beginning and 201.8 MB in the end (delta: 14.3 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2384.53 ms. Allocated memory was 240.1 MB in the beginning and 370.1 MB in the end (delta: 130.0 MB). Free memory was 201.3 MB in the beginning and 234.1 MB in the end (delta: -32.9 MB). Peak memory consumption was 97.6 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: 288222, positive: 241862, positive conditional: 241862, positive unconditional: 0, negative: 46360, negative conditional: 46360, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 264088, positive: 241862, positive conditional: 241862, positive unconditional: 0, negative: 22226, negative conditional: 22226, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 264088, positive: 241862, positive conditional: 0, positive unconditional: 241862, negative: 22226, negative conditional: 0, negative unconditional: 22226, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 477, positive: 435, positive conditional: 0, positive unconditional: 435, negative: 42, negative conditional: 0, negative unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 477, positive: 393, positive conditional: 0, positive unconditional: 393, negative: 84, negative conditional: 0, negative unconditional: 84, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 84, positive: 42, positive conditional: 0, positive unconditional: 42, negative: 42, negative conditional: 0, negative unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 84, positive: 42, positive conditional: 0, positive unconditional: 42, negative: 42, negative conditional: 0, negative unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 290, positive: 144, positive conditional: 0, positive unconditional: 144, negative: 146, negative conditional: 0, negative unconditional: 146, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 264088, positive: 241427, positive conditional: 0, positive unconditional: 241427, negative: 22184, negative conditional: 0, negative unconditional: 22184, unknown: 477, unknown conditional: 0, unknown unconditional: 477] , Statistics on independence cache: Total cache size (in pairs): 477, Positive cache size: 435, Positive conditional cache size: 0, Positive unconditional cache size: 435, Negative cache size: 42, Negative conditional cache size: 0, Negative unconditional cache size: 42 ], Maximal queried relation: 0, Independence queries for same thread: 24134 - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 20655, positive: 19025, positive conditional: 19025, positive unconditional: 0, negative: 1630, negative conditional: 1630, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 19145, positive: 19025, positive conditional: 19025, positive unconditional: 0, negative: 120, negative conditional: 120, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 19145, positive: 18925, positive conditional: 0, positive unconditional: 18925, negative: 220, negative conditional: 0, negative unconditional: 220, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 403, positive: 385, positive conditional: 0, positive unconditional: 385, negative: 18, negative conditional: 0, negative unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 403, positive: 363, positive conditional: 0, positive unconditional: 363, negative: 40, negative conditional: 0, negative unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 40, positive: 22, positive conditional: 0, positive unconditional: 22, negative: 18, negative conditional: 0, negative unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 62, positive: 39, positive conditional: 17, positive unconditional: 22, negative: 23, negative conditional: 5, negative unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 142, positive: 93, positive conditional: 28, positive unconditional: 64, negative: 49, negative conditional: 5, negative unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 19145, positive: 18540, positive conditional: 0, positive unconditional: 18540, negative: 202, negative conditional: 0, negative unconditional: 202, unknown: 403, unknown conditional: 0, unknown unconditional: 403] , Statistics on independence cache: Total cache size (in pairs): 425, Positive cache size: 402, Positive conditional cache size: 17, Positive unconditional cache size: 385, Negative cache size: 23, Negative conditional cache size: 5, Negative unconditional cache size: 18, SemanticConditionEliminator.Independence Queries: [ total: 525, positive: 100, positive conditional: 100, positive unconditional: 0, negative: 425, negative conditional: 26, negative unconditional: 399, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 525, positive: 100, positive conditional: 100, positive unconditional: 0, negative: 425, negative conditional: 26, negative unconditional: 399, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 62, positive: 39, positive conditional: 17, positive unconditional: 22, negative: 23, negative conditional: 5, negative unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 142, positive: 93, positive conditional: 28, positive unconditional: 64, negative: 49, negative conditional: 5, negative unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 525, positive: 83, positive conditional: 83, positive unconditional: 0, negative: 420, negative conditional: 21, negative unconditional: 399, unknown: 22, unknown conditional: 22, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 425, Positive cache size: 402, Positive conditional cache size: 17, Positive unconditional cache size: 385, Negative cache size: 23, Negative conditional cache size: 5, Negative unconditional cache size: 18, Eliminated conditions: 399, SemanticConditionEliminator.Independence Queries: [ total: 525, positive: 100, positive conditional: 100, positive unconditional: 0, negative: 425, negative conditional: 26, negative unconditional: 399, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 525, positive: 100, positive conditional: 100, positive unconditional: 0, negative: 425, negative conditional: 26, negative unconditional: 399, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 62, positive: 39, positive conditional: 17, positive unconditional: 22, negative: 23, negative conditional: 5, negative unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 142, positive: 93, positive conditional: 28, positive unconditional: 64, negative: 49, negative conditional: 5, negative unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 525, positive: 83, positive conditional: 83, positive unconditional: 0, negative: 420, negative conditional: 21, negative unconditional: 399, unknown: 22, unknown conditional: 22, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 425, Positive cache size: 402, Positive conditional cache size: 17, Positive unconditional cache size: 385, Negative cache size: 23, Negative conditional cache size: 5, Negative unconditional cache size: 18, Eliminated conditions: 399, SemanticConditionEliminator.Independence Queries: [ total: 525, positive: 100, positive conditional: 100, positive unconditional: 0, negative: 425, negative conditional: 26, negative unconditional: 399, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 525, positive: 100, positive conditional: 100, positive unconditional: 0, negative: 425, negative conditional: 26, negative unconditional: 399, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 62, positive: 39, positive conditional: 17, positive unconditional: 22, negative: 23, negative conditional: 5, negative unconditional: 18, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 142, positive: 93, positive conditional: 28, positive unconditional: 64, negative: 49, negative conditional: 5, negative unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 525, positive: 83, positive conditional: 83, positive unconditional: 0, negative: 420, negative conditional: 21, negative unconditional: 399, unknown: 22, unknown conditional: 22, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 425, Positive cache size: 402, Positive conditional cache size: 17, Positive unconditional cache size: 385, Negative cache size: 23, Negative conditional cache size: 5, Negative unconditional cache size: 18, Eliminated conditions: 399 ], Maximal queried relation: 3, Independence queries for same thread: 1510 - CounterExampleResult [Line: 38]: assertion can be violated assertion can be violated We found a FailurePath: [L14] 0 pendingIo := 1; VAL [pendingIo=1] [L15] 0 stopped := false; VAL [pendingIo=1, stopped=false] [L16] 0 stoppingEvent := false; VAL [pendingIo=1, stopped=false, stoppingEvent=false] [L17] 0 stoppingFlag := false; VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L19] FORK 0 fork 0 ServerThread(); VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L21] FORK 0 fork 1 DeviceThreadWithAssert(); VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L22] FORK 0 fork 2 DeviceThread(); VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L60] 3 assume !stoppingFlag; VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L61] 3 pendingIo := pendingIo + 1; VAL [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=false] [L60] 2 assume !stoppingFlag; VAL [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=false] [L23] FORK 0 fork 3 DeviceThread(); VAL [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=false] [L60] 4 assume !stoppingFlag; VAL [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=false] [L69] 3 pendingIo := pendingIo - 1; [L70] COND FALSE 3 !(pendingIo == 0) VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L24] FORK 0 fork 4 DeviceThread(); VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L60] 5 assume !stoppingFlag; VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L61] 4 pendingIo := pendingIo + 1; VAL [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=false] [L82] 1 stoppingFlag := true; VAL [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=true] [L61] 5 pendingIo := pendingIo + 1; VAL [pendingIo=3, stopped=false, stoppingEvent=false, stoppingFlag=true] [L92] 1 pendingIo := pendingIo - 1; [L93] COND FALSE 1 !(pendingIo == 0) VAL [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=true] [L25] FORK 0 fork 5 DeviceThread(); VAL [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=true] [L69] 5 pendingIo := pendingIo - 1; [L70] COND FALSE 5 !(pendingIo == 0) VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=true] [L69] 4 pendingIo := pendingIo - 1; [L70] COND TRUE 4 pendingIo == 0 [L71] 4 stoppingEvent := true; VAL [pendingIo=0, stopped=false, stoppingEvent=true, stoppingFlag=true] [L61] 2 pendingIo := pendingIo + 1; VAL [pendingIo=1, stopped=false, stoppingEvent=true, stoppingFlag=true] [L84] 1 assume stoppingEvent; VAL [pendingIo=1, stopped=false, stoppingEvent=true, stoppingFlag=true] [L85] 1 stopped := true; VAL [pendingIo=1, stopped=true, stoppingEvent=true, stoppingFlag=true] [L38] 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 10 procedures, 62 locations, 8 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1538.8ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 12.7ms, PartialOrderReductionTime: 1466.0ms, 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 10 procedures, 62 locations, 8 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 750.8ms, OverallIterations: 4, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 0.9ms, PartialOrderReductionTime: 410.4ms, 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: 4.6ms SsaConstructionTime, 40.1ms SatisfiabilityAnalysisTime, 183.5ms InterpolantComputationTime, 95 NumberOfCodeBlocks, 95 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 62 ConstructedInterpolants, 0 QuantifiedInterpolants, 184 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 1/1 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...