/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth05-incorrect.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d310483fe8b4879eee5de19363f50e4b839cc4ec-d310483 [2021-06-24 21:01:48,333 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-24 21:01:48,335 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-24 21:01:48,361 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-24 21:01:48,407 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-NoLbe.epf [2021-06-24 21:01:48,424 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-24 21:01:48,424 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-24 21:01:48,424 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-24 21:01:48,425 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-24 21:01:48,425 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-24 21:01:48,426 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-24 21:01:48,426 INFO L138 SettingsManager]: * Use SBE=true [2021-06-24 21:01:48,426 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-24 21:01:48,426 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-24 21:01:48,426 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-24 21:01:48,426 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-24 21:01:48,426 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-24 21:01:48,426 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-24 21:01:48,426 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-24 21:01:48,426 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-24 21:01:48,427 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-24 21:01:48,427 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-24 21:01:48,427 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-24 21:01:48,427 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-24 21:01:48,427 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-24 21:01:48,427 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-24 21:01:48,427 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-24 21:01:48,427 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-24 21:01:48,427 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-24 21:01:48,428 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-24 21:01:48,428 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-24 21:01:48,443 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-24 21:01:48,443 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-24 21:01:48,443 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-24 21:01:48,443 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-24 21:01:48,443 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-24 21:01:48,443 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-24 21:01:48,444 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-06-24 21:01:48,444 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-24 21:01:48,700 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-24 21:01:48,714 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-24 21:01:48,716 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-24 21:01:48,716 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-24 21:01:48,720 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-24 21:01:48,720 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth05-incorrect.bpl [2021-06-24 21:01:48,721 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth05-incorrect.bpl' [2021-06-24 21:01:48,738 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-24 21:01:48,740 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-24 21:01:48,740 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-24 21:01:48,741 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-24 21:01:48,741 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-24 21:01:48,758 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "bluetooth05-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 09:01:48" (1/1) ... [2021-06-24 21:01:48,764 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "bluetooth05-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 09:01:48" (1/1) ... [2021-06-24 21:01:48,775 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-24 21:01:48,776 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-24 21:01:48,776 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-24 21:01:48,777 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-24 21:01:48,782 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "bluetooth05-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 09:01:48" (1/1) ... [2021-06-24 21:01:48,782 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "bluetooth05-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 09:01:48" (1/1) ... [2021-06-24 21:01:48,783 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "bluetooth05-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 09:01:48" (1/1) ... [2021-06-24 21:01:48,783 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "bluetooth05-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 09:01:48" (1/1) ... [2021-06-24 21:01:48,785 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "bluetooth05-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 09:01:48" (1/1) ... [2021-06-24 21:01:48,788 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "bluetooth05-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 09:01:48" (1/1) ... [2021-06-24 21:01:48,789 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "bluetooth05-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 09:01:48" (1/1) ... [2021-06-24 21:01:48,789 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-24 21:01:48,790 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-24 21:01:48,790 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-24 21:01:48,790 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-24 21:01:48,793 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "bluetooth05-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 09:01:48" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-24 21:01:48,844 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThread given in one single declaration [2021-06-24 21:01:48,845 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThread [2021-06-24 21:01:48,845 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThread [2021-06-24 21:01:48,845 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ServerThread given in one single declaration [2021-06-24 21:01:48,845 INFO L130 BoogieDeclarations]: Found specification of procedure ServerThread [2021-06-24 21:01:48,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ServerThread [2021-06-24 21:01:48,845 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-24 21:01:48,845 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-24 21:01:48,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-24 21:01:48,846 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-24 21:01:49,081 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-24 21:01:49,082 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-06-24 21:01:49,083 INFO L202 PluginConnector]: Adding new model bluetooth05-incorrect.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 09:01:49 BoogieIcfgContainer [2021-06-24 21:01:49,083 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-24 21:01:49,084 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-24 21:01:49,085 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-24 21:01:49,086 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-24 21:01:49,087 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth05-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 09:01:48" (1/2) ... [2021-06-24 21:01:49,087 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5767bdce and model type bluetooth05-incorrect.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.06 09:01:49, skipping insertion in model container [2021-06-24 21:01:49,087 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth05-incorrect.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 09:01:49" (2/2) ... [2021-06-24 21:01:49,088 INFO L111 eAbstractionObserver]: Analyzing ICFG bluetooth05-incorrect.bpl [2021-06-24 21:01:49,092 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-24 21:01:49,092 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-24 21:01:49,092 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-24 21:01:49,093 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-24 21:01:49,155 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-24 21:01:49,176 INFO L255 AbstractCegarLoop]: Starting to check reachability of 6 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-06-24 21:01:49,218 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-24 21:01:49,218 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-24 21:01:49,219 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-24 21:01:49,219 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-24 21:01:49,219 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-24 21:01:49,220 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-24 21:01:49,220 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-24 21:01:49,220 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-24 21:01:49,384 INFO L301 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE (1/6) [2021-06-24 21:01:49,387 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-06-24 21:01:49,401 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-24 21:01:49,401 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-24 21:01:49,401 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-24 21:01:49,401 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-24 21:01:49,401 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-24 21:01:49,401 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-24 21:01:49,401 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-24 21:01:49,402 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == DeviceThreadThread1of1ForFork4======== [2021-06-24 21:01:49,628 INFO L430 AbstractCegarLoop]: === Iteration 1 === [DeviceThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-06-24 21:01:49,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-24 21:01:49,631 INFO L82 PathProgramCache]: Analyzing trace with hash -1296175233, now seen corresponding path program 1 times [2021-06-24 21:01:49,636 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-24 21:01:49,637 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154833054] [2021-06-24 21:01:49,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-24 21:01:49,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-24 21:01:49,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-24 21:01:49,727 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-24 21:01:49,727 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154833054] [2021-06-24 21:01:49,728 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154833054] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-24 21:01:49,728 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-24 21:01:49,728 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-24 21:01:49,729 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128662423] [2021-06-24 21:01:49,732 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-24 21:01:49,732 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-24 21:01:49,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-24 21:01:49,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-24 21:01:49,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-24 21:01:49,741 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-24 21:01:49,741 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 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) [2021-06-24 21:01:49,741 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-24 21:01:49,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 21:01:49,977 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-24 21:01:49,977 INFO L430 AbstractCegarLoop]: === Iteration 2 === [DeviceThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-06-24 21:01:49,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-24 21:01:49,983 INFO L82 PathProgramCache]: Analyzing trace with hash 351461619, now seen corresponding path program 1 times [2021-06-24 21:01:49,983 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-24 21:01:49,983 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122175145] [2021-06-24 21:01:49,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-24 21:01:49,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-24 21:01:50,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-24 21:01:50,011 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-24 21:01:50,011 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122175145] [2021-06-24 21:01:50,011 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122175145] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-24 21:01:50,012 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-24 21:01:50,013 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-24 21:01:50,013 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297105029] [2021-06-24 21:01:50,014 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-24 21:01:50,014 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-24 21:01:50,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-24 21:01:50,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-24 21:01:50,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-24 21:01:50,015 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-24 21:01:50,015 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-24 21:01:50,016 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-24 21:01:50,016 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-24 21:01:50,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 21:01:50,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 21:01:50,166 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-24 21:01:50,166 INFO L430 AbstractCegarLoop]: === Iteration 3 === [DeviceThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-06-24 21:01:50,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-24 21:01:50,167 INFO L82 PathProgramCache]: Analyzing trace with hash 804083412, now seen corresponding path program 1 times [2021-06-24 21:01:50,167 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-24 21:01:50,167 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337795482] [2021-06-24 21:01:50,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-24 21:01:50,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-24 21:01:50,292 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-06-24 21:01:50,292 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-24 21:01:50,292 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337795482] [2021-06-24 21:01:50,292 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337795482] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-24 21:01:50,292 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-24 21:01:50,292 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-24 21:01:50,293 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625018607] [2021-06-24 21:01:50,293 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-24 21:01:50,293 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-24 21:01:50,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-24 21:01:50,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2021-06-24 21:01:50,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-24 21:01:50,294 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-24 21:01:50,294 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 6 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-24 21:01:50,294 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-24 21:01:50,294 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-24 21:01:50,294 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-24 21:01:50,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 21:01:50,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 21:01:50,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-24 21:01:50,443 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-24 21:01:50,443 INFO L430 AbstractCegarLoop]: === Iteration 4 === [DeviceThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-06-24 21:01:50,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-24 21:01:50,444 INFO L82 PathProgramCache]: Analyzing trace with hash 2075764330, now seen corresponding path program 1 times [2021-06-24 21:01:50,445 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-24 21:01:50,445 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634578678] [2021-06-24 21:01:50,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-24 21:01:50,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-24 21:01:50,468 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-24 21:01:50,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-24 21:01:50,474 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-24 21:01:50,486 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-06-24 21:01:50,486 INFO L605 BasicCegarLoop]: Counterexample might be feasible [2021-06-24 21:01:50,486 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-24 21:01:50,490 INFO L301 ceAbstractionStarter]: Result for error location DeviceThreadThread1of1ForFork4 was UNSAFE (2/6) [2021-06-24 21:01:50,492 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-24 21:01:50,501 INFO L202 PluginConnector]: Adding new model bluetooth05-incorrect.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.06 09:01:50 BasicIcfg [2021-06-24 21:01:50,502 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-24 21:01:50,502 INFO L168 Benchmark]: Toolchain (without parser) took 1762.67 ms. Allocated memory was 177.2 MB in the beginning and 226.5 MB in the end (delta: 49.3 MB). Free memory was 158.2 MB in the beginning and 157.2 MB in the end (delta: 957.7 kB). Peak memory consumption was 50.8 MB. Max. memory is 8.0 GB. [2021-06-24 21:01:50,503 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.12 ms. Allocated memory is still 177.2 MB. Free memory is still 159.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-06-24 21:01:50,503 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.22 ms. Allocated memory is still 177.2 MB. Free memory was 158.2 MB in the beginning and 156.3 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-06-24 21:01:50,503 INFO L168 Benchmark]: Boogie Preprocessor took 13.28 ms. Allocated memory is still 177.2 MB. Free memory was 156.3 MB in the beginning and 155.4 MB in the end (delta: 859.2 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-06-24 21:01:50,503 INFO L168 Benchmark]: RCFGBuilder took 293.17 ms. Allocated memory is still 177.2 MB. Free memory was 155.4 MB in the beginning and 142.9 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-06-24 21:01:50,504 INFO L168 Benchmark]: TraceAbstraction took 1417.30 ms. Allocated memory was 177.2 MB in the beginning and 226.5 MB in the end (delta: 49.3 MB). Free memory was 142.5 MB in the beginning and 157.2 MB in the end (delta: -14.8 MB). Peak memory consumption was 35.1 MB. Max. memory is 8.0 GB. [2021-06-24 21:01:50,505 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 0.12 ms. Allocated memory is still 177.2 MB. Free memory is still 159.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 35.22 ms. Allocated memory is still 177.2 MB. Free memory was 158.2 MB in the beginning and 156.3 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 13.28 ms. Allocated memory is still 177.2 MB. Free memory was 156.3 MB in the beginning and 155.4 MB in the end (delta: 859.2 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 293.17 ms. Allocated memory is still 177.2 MB. Free memory was 155.4 MB in the beginning and 142.9 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1417.30 ms. Allocated memory was 177.2 MB in the beginning and 226.5 MB in the end (delta: 49.3 MB). Free memory was 142.5 MB in the beginning and 157.2 MB in the end (delta: -14.8 MB). Peak memory consumption was 35.1 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: 1156, positive: 1141, positive conditional: 76, positive unconditional: 1065, negative: 15, negative conditional: 10, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 1146, positive: 1141, positive conditional: 76, positive unconditional: 1065, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 1146, positive: 1141, positive conditional: 0, positive unconditional: 1141, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 930, positive: 925, positive conditional: 0, positive unconditional: 925, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 930, positive: 920, positive conditional: 0, positive unconditional: 920, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 10, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 10, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 48, positive: 15, positive conditional: 0, positive unconditional: 15, negative: 33, negative conditional: 0, negative unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1146, positive: 216, positive conditional: 0, positive unconditional: 216, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 930, unknown conditional: 0, unknown unconditional: 930] , Statistics on independence cache: Total cache size (in pairs): 930, Positive cache size: 925, Positive conditional cache size: 0, Positive unconditional cache size: 925, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 ], Maximal queried relation: 0, Independence queries for same thread: 10 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 110, Number of persistent set computation: 15, Number of trivial persistent sets: 10, Underlying independence relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1156, positive: 1141, positive conditional: 76, positive unconditional: 1065, negative: 15, negative conditional: 10, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 1146, positive: 1141, positive conditional: 76, positive unconditional: 1065, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 1146, positive: 1141, positive conditional: 0, positive unconditional: 1141, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 930, positive: 925, positive conditional: 0, positive unconditional: 925, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 930, positive: 920, positive conditional: 0, positive unconditional: 920, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 10, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 10, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 48, positive: 15, positive conditional: 0, positive unconditional: 15, negative: 33, negative conditional: 0, negative unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1146, positive: 216, positive conditional: 0, positive unconditional: 216, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 930, unknown conditional: 0, unknown unconditional: 930] , Statistics on independence cache: Total cache size (in pairs): 930, Positive cache size: 925, Positive conditional cache size: 0, Positive unconditional cache size: 925, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 ], Maximal queried relation: 0, Independence queries for same thread: 10 - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 5456, positive: 5166, positive conditional: 3307, positive unconditional: 1859, negative: 290, negative conditional: 230, negative unconditional: 60, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 5249, positive: 5166, positive conditional: 3307, positive unconditional: 1859, negative: 83, negative conditional: 23, negative unconditional: 60, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 5249, positive: 5160, positive conditional: 0, positive unconditional: 5160, negative: 89, negative conditional: 0, negative unconditional: 89, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1297, positive: 1247, positive conditional: 0, positive unconditional: 1247, negative: 50, negative conditional: 0, negative unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1297, positive: 1214, positive conditional: 0, positive unconditional: 1214, negative: 83, negative conditional: 0, negative unconditional: 83, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 83, positive: 33, positive conditional: 0, positive unconditional: 33, negative: 50, negative conditional: 0, negative unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 88, positive: 35, positive conditional: 2, positive unconditional: 33, negative: 53, negative conditional: 3, negative unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 239, positive: 74, positive conditional: 4, positive unconditional: 70, negative: 164, negative conditional: 4, negative unconditional: 160, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 5249, positive: 3913, positive conditional: 0, positive unconditional: 3913, negative: 39, negative conditional: 0, negative unconditional: 39, unknown: 1297, unknown conditional: 0, unknown unconditional: 1297] , Statistics on independence cache: Total cache size (in pairs): 1302, Positive cache size: 1249, Positive conditional cache size: 2, Positive unconditional cache size: 1247, Negative cache size: 53, Negative conditional cache size: 3, Negative unconditional cache size: 50, SemanticConditionEliminator.Independence Queries: [ total: 124, positive: 6, positive conditional: 6, positive unconditional: 0, negative: 118, negative conditional: 4, negative unconditional: 114, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 124, positive: 6, positive conditional: 6, positive unconditional: 0, negative: 118, negative conditional: 4, negative unconditional: 114, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 88, positive: 35, positive conditional: 2, positive unconditional: 33, negative: 53, negative conditional: 3, negative unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 239, positive: 74, positive conditional: 4, positive unconditional: 70, negative: 164, negative conditional: 4, negative unconditional: 160, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 124, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 115, negative conditional: 1, negative unconditional: 114, unknown: 5, unknown conditional: 5, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1302, Positive cache size: 1249, Positive conditional cache size: 2, Positive unconditional cache size: 1247, Negative cache size: 53, Negative conditional cache size: 3, Negative unconditional cache size: 50, Eliminated conditions: 60, SemanticConditionEliminator.Independence Queries: [ total: 124, positive: 6, positive conditional: 6, positive unconditional: 0, negative: 118, negative conditional: 4, negative unconditional: 114, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 124, positive: 6, positive conditional: 6, positive unconditional: 0, negative: 118, negative conditional: 4, negative unconditional: 114, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 88, positive: 35, positive conditional: 2, positive unconditional: 33, negative: 53, negative conditional: 3, negative unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 239, positive: 74, positive conditional: 4, positive unconditional: 70, negative: 164, negative conditional: 4, negative unconditional: 160, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 124, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 115, negative conditional: 1, negative unconditional: 114, unknown: 5, unknown conditional: 5, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1302, Positive cache size: 1249, Positive conditional cache size: 2, Positive unconditional cache size: 1247, Negative cache size: 53, Negative conditional cache size: 3, Negative unconditional cache size: 50, Eliminated conditions: 60, SemanticConditionEliminator.Independence Queries: [ total: 124, positive: 6, positive conditional: 6, positive unconditional: 0, negative: 118, negative conditional: 4, negative unconditional: 114, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 124, positive: 6, positive conditional: 6, positive unconditional: 0, negative: 118, negative conditional: 4, negative unconditional: 114, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 88, positive: 35, positive conditional: 2, positive unconditional: 33, negative: 53, negative conditional: 3, negative unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 239, positive: 74, positive conditional: 4, positive unconditional: 70, negative: 164, negative conditional: 4, negative unconditional: 160, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 124, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 115, negative conditional: 1, negative unconditional: 114, unknown: 5, unknown conditional: 5, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1302, Positive cache size: 1249, Positive conditional cache size: 2, Positive unconditional cache size: 1247, Negative cache size: 53, Negative conditional cache size: 3, Negative unconditional cache size: 50, Eliminated conditions: 60 ], Maximal queried relation: 3, Independence queries for same thread: 207 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 497, Number of persistent set computation: 1665, Number of trivial persistent sets: 1469, Underlying independence relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 5456, positive: 5166, positive conditional: 3307, positive unconditional: 1859, negative: 290, negative conditional: 230, negative unconditional: 60, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 5249, positive: 5166, positive conditional: 3307, positive unconditional: 1859, negative: 83, negative conditional: 23, negative unconditional: 60, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 5249, positive: 5160, positive conditional: 0, positive unconditional: 5160, negative: 89, negative conditional: 0, negative unconditional: 89, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1297, positive: 1247, positive conditional: 0, positive unconditional: 1247, negative: 50, negative conditional: 0, negative unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1297, positive: 1214, positive conditional: 0, positive unconditional: 1214, negative: 83, negative conditional: 0, negative unconditional: 83, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 83, positive: 33, positive conditional: 0, positive unconditional: 33, negative: 50, negative conditional: 0, negative unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 88, positive: 35, positive conditional: 2, positive unconditional: 33, negative: 53, negative conditional: 3, negative unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 239, positive: 74, positive conditional: 4, positive unconditional: 70, negative: 164, negative conditional: 4, negative unconditional: 160, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 5249, positive: 3913, positive conditional: 0, positive unconditional: 3913, negative: 39, negative conditional: 0, negative unconditional: 39, unknown: 1297, unknown conditional: 0, unknown unconditional: 1297] , Statistics on independence cache: Total cache size (in pairs): 1302, Positive cache size: 1249, Positive conditional cache size: 2, Positive unconditional cache size: 1247, Negative cache size: 53, Negative conditional cache size: 3, Negative unconditional cache size: 50, SemanticConditionEliminator.Independence Queries: [ total: 124, positive: 6, positive conditional: 6, positive unconditional: 0, negative: 118, negative conditional: 4, negative unconditional: 114, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 124, positive: 6, positive conditional: 6, positive unconditional: 0, negative: 118, negative conditional: 4, negative unconditional: 114, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 88, positive: 35, positive conditional: 2, positive unconditional: 33, negative: 53, negative conditional: 3, negative unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 239, positive: 74, positive conditional: 4, positive unconditional: 70, negative: 164, negative conditional: 4, negative unconditional: 160, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 124, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 115, negative conditional: 1, negative unconditional: 114, unknown: 5, unknown conditional: 5, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1302, Positive cache size: 1249, Positive conditional cache size: 2, Positive unconditional cache size: 1247, Negative cache size: 53, Negative conditional cache size: 3, Negative unconditional cache size: 50, Eliminated conditions: 60, SemanticConditionEliminator.Independence Queries: [ total: 124, positive: 6, positive conditional: 6, positive unconditional: 0, negative: 118, negative conditional: 4, negative unconditional: 114, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 124, positive: 6, positive conditional: 6, positive unconditional: 0, negative: 118, negative conditional: 4, negative unconditional: 114, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 88, positive: 35, positive conditional: 2, positive unconditional: 33, negative: 53, negative conditional: 3, negative unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 239, positive: 74, positive conditional: 4, positive unconditional: 70, negative: 164, negative conditional: 4, negative unconditional: 160, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 124, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 115, negative conditional: 1, negative unconditional: 114, unknown: 5, unknown conditional: 5, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1302, Positive cache size: 1249, Positive conditional cache size: 2, Positive unconditional cache size: 1247, Negative cache size: 53, Negative conditional cache size: 3, Negative unconditional cache size: 50, Eliminated conditions: 60, SemanticConditionEliminator.Independence Queries: [ total: 124, positive: 6, positive conditional: 6, positive unconditional: 0, negative: 118, negative conditional: 4, negative unconditional: 114, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 124, positive: 6, positive conditional: 6, positive unconditional: 0, negative: 118, negative conditional: 4, negative unconditional: 114, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 88, positive: 35, positive conditional: 2, positive unconditional: 33, negative: 53, negative conditional: 3, negative unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 239, positive: 74, positive conditional: 4, positive unconditional: 70, negative: 164, negative conditional: 4, negative unconditional: 160, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 124, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 115, negative conditional: 1, negative unconditional: 114, unknown: 5, unknown conditional: 5, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1302, Positive cache size: 1249, Positive conditional cache size: 2, Positive unconditional cache size: 1247, Negative cache size: 53, Negative conditional cache size: 3, Negative unconditional cache size: 50, Eliminated conditions: 60 ], Maximal queried relation: 3, Independence queries for same thread: 207 - CounterExampleResult [Line: 36]: assertion can be violated assertion can be violated We found a FailurePath: [L13] 0 pendingIo := 1; VAL [pendingIo=1] [L14] 0 stopped := false; VAL [pendingIo=1, stopped=false] [L15] 0 stoppingEvent := false; VAL [pendingIo=1, stopped=false, stoppingEvent=false] [L16] 0 stoppingFlag := false; VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L18] FORK 0 fork 0 ServerThread(); VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L19] FORK 0 fork 1 DeviceThread(); VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L46] 2 assume !stoppingFlag; VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L47] 2 pendingIo := pendingIo + 1; VAL [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=false] [L36] 2 assert !stopped; VAL [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=false] [L55] 2 pendingIo := pendingIo - 1; [L56] COND FALSE 2 !(pendingIo == 0) VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L20] FORK 0 fork 2 DeviceThread(); VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L46] 3 assume !stoppingFlag; VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L47] 3 pendingIo := pendingIo + 1; VAL [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=false] [L36] 3 assert !stopped; VAL [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=false] [L55] 3 pendingIo := pendingIo - 1; [L56] COND FALSE 3 !(pendingIo == 0) VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L21] FORK 0 fork 3 DeviceThread(); VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L46] 4 assume !stoppingFlag; VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L47] 4 pendingIo := pendingIo + 1; VAL [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=false] [L36] 4 assert !stopped; VAL [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=false] [L55] 4 pendingIo := pendingIo - 1; [L56] COND FALSE 4 !(pendingIo == 0) VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L22] FORK 0 fork 4 DeviceThread(); VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L46] 5 assume !stoppingFlag; VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L68] 1 stoppingFlag := true; VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=true] [L78] 1 pendingIo := pendingIo - 1; [L79] COND TRUE 1 pendingIo == 0 [L80] 1 stoppingEvent := true; VAL [pendingIo=0, stopped=false, stoppingEvent=true, stoppingFlag=true] [L47] 5 pendingIo := pendingIo + 1; VAL [pendingIo=1, stopped=false, stoppingEvent=true, stoppingFlag=true] [L70] 1 assume stoppingEvent; VAL [pendingIo=1, stopped=false, stoppingEvent=true, stoppingFlag=true] [L71] 1 stopped := true; VAL [pendingIo=1, stopped=true, stoppingEvent=true, stoppingFlag=true] [L36] 5 assert !stopped; VAL [pendingIo=1, stopped=true, stoppingEvent=true, stoppingFlag=true] - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 9 procedures, 66 locations, 12 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 196.0ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 15.7ms, PartialOrderReductionTime: 140.0ms, 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: DeviceThreadThread1of1ForFork4 with 1 thread instances CFG has 9 procedures, 66 locations, 12 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1094.8ms, OverallIterations: 4, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1.4ms, PartialOrderReductionTime: 758.8ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 9.9ms SsaConstructionTime, 63.8ms SatisfiabilityAnalysisTime, 143.2ms InterpolantComputationTime, 121 NumberOfCodeBlocks, 121 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 87 ConstructedInterpolants, 0 QuantifiedInterpolants, 284 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...