/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.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth07-incorrect.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d310483fe8b4879eee5de19363f50e4b839cc4ec-d310483 [2021-06-24 19:43:57,754 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-24 19:43:57,756 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-24 19:43:57,788 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-24 19:43:57,827 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-24 19:43:57,828 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-24 19:43:57,828 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-24 19:43:57,845 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.epf [2021-06-24 19:43:57,885 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-24 19:43:57,885 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-24 19:43:57,885 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-24 19:43:57,885 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-24 19:43:57,886 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-24 19:43:57,886 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-24 19:43:57,886 INFO L138 SettingsManager]: * Use SBE=true [2021-06-24 19:43:57,887 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-24 19:43:57,887 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-24 19:43:57,887 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-24 19:43:57,887 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-24 19:43:57,887 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-24 19:43:57,887 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-24 19:43:57,887 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-24 19:43:57,887 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-24 19:43:57,887 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-24 19:43:57,887 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-24 19:43:57,888 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-24 19:43:57,888 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-24 19:43:57,888 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-24 19:43:57,888 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-24 19:43:57,888 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-24 19:43:57,888 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-24 19:43:57,888 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-24 19:43:57,888 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-24 19:43:57,889 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-24 19:43:57,889 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-24 19:43:57,889 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-24 19:43:57,889 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-24 19:43:57,889 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-24 19:43:57,889 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-24 19:43:57,889 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-24 19:43:57,889 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2021-06-24 19:43:57,889 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-24 19:43:58,176 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-24 19:43:58,200 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-24 19:43:58,207 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-24 19:43:58,208 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-24 19:43:58,209 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-24 19:43:58,210 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth07-incorrect.bpl [2021-06-24 19:43:58,210 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth07-incorrect.bpl' [2021-06-24 19:43:58,235 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-24 19:43:58,236 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-24 19:43:58,238 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-24 19:43:58,238 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-24 19:43:58,238 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-24 19:43:58,256 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "bluetooth07-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 07:43:58" (1/1) ... [2021-06-24 19:43:58,263 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "bluetooth07-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 07:43:58" (1/1) ... [2021-06-24 19:43:58,274 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-24 19:43:58,276 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-24 19:43:58,276 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-24 19:43:58,276 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-24 19:43:58,281 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "bluetooth07-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 07:43:58" (1/1) ... [2021-06-24 19:43:58,282 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "bluetooth07-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 07:43:58" (1/1) ... [2021-06-24 19:43:58,282 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "bluetooth07-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 07:43:58" (1/1) ... [2021-06-24 19:43:58,282 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "bluetooth07-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 07:43:58" (1/1) ... [2021-06-24 19:43:58,283 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "bluetooth07-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 07:43:58" (1/1) ... [2021-06-24 19:43:58,286 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "bluetooth07-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 07:43:58" (1/1) ... [2021-06-24 19:43:58,287 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "bluetooth07-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 07:43:58" (1/1) ... [2021-06-24 19:43:58,288 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-24 19:43:58,290 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-24 19:43:58,290 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-24 19:43:58,290 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-24 19:43:58,292 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "bluetooth07-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 07:43:58" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-24 19:43:58,362 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThread given in one single declaration [2021-06-24 19:43:58,362 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThread [2021-06-24 19:43:58,362 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThread [2021-06-24 19:43:58,363 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ServerThread given in one single declaration [2021-06-24 19:43:58,363 INFO L130 BoogieDeclarations]: Found specification of procedure ServerThread [2021-06-24 19:43:58,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ServerThread [2021-06-24 19:43:58,363 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-24 19:43:58,363 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-24 19:43:58,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-24 19:43:58,364 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-24 19:43:58,513 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-24 19:43:58,513 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-06-24 19:43:58,515 INFO L202 PluginConnector]: Adding new model bluetooth07-incorrect.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 07:43:58 BoogieIcfgContainer [2021-06-24 19:43:58,515 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-24 19:43:58,517 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-24 19:43:58,517 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-24 19:43:58,519 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-24 19:43:58,519 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth07-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 07:43:58" (1/2) ... [2021-06-24 19:43:58,520 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e053c25 and model type bluetooth07-incorrect.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.06 07:43:58, skipping insertion in model container [2021-06-24 19:43:58,520 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth07-incorrect.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 07:43:58" (2/2) ... [2021-06-24 19:43:58,521 INFO L111 eAbstractionObserver]: Analyzing ICFG bluetooth07-incorrect.bpl [2021-06-24 19:43:58,538 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-24 19:43:58,538 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-24 19:43:58,539 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-24 19:43:58,539 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-24 19:43:58,591 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-24 19:43:58,611 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 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-06-24 19:43:58,664 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-24 19:43:58,664 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-24 19:43:58,664 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-24 19:43:58,664 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-24 19:43:58,664 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-24 19:43:58,665 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-24 19:43:58,665 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-24 19:43:58,665 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == DeviceThreadThread1of1ForFork6======== [2021-06-24 19:43:58,712 INFO L430 AbstractCegarLoop]: === Iteration 1 === [DeviceThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-06-24 19:43:58,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-24 19:43:58,716 INFO L82 PathProgramCache]: Analyzing trace with hash 321283296, now seen corresponding path program 1 times [2021-06-24 19:43:58,722 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-24 19:43:58,723 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410927565] [2021-06-24 19:43:58,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-24 19:43:58,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-24 19:43:58,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-24 19:43:58,851 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-24 19:43:58,852 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410927565] [2021-06-24 19:43:58,853 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410927565] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-24 19:43:58,853 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-24 19:43:58,853 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-24 19:43:58,854 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569299621] [2021-06-24 19:43:58,862 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-24 19:43:58,862 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-24 19:43:58,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-24 19:43:58,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-24 19:43:58,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-24 19:43:58,887 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-24 19:43:58,889 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-24 19:43:58,889 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-24 19:43:59,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 19:43:59,254 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-24 19:43:59,255 INFO L430 AbstractCegarLoop]: === Iteration 2 === [DeviceThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-06-24 19:43:59,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-24 19:43:59,255 INFO L82 PathProgramCache]: Analyzing trace with hash 2096117502, now seen corresponding path program 1 times [2021-06-24 19:43:59,255 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-24 19:43:59,256 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968438413] [2021-06-24 19:43:59,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-24 19:43:59,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-24 19:43:59,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-24 19:43:59,271 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-24 19:43:59,271 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968438413] [2021-06-24 19:43:59,271 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968438413] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-24 19:43:59,271 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-24 19:43:59,271 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-24 19:43:59,271 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201164200] [2021-06-24 19:43:59,272 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-24 19:43:59,272 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-24 19:43:59,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-24 19:43:59,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-24 19:43:59,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-24 19:43:59,273 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-24 19:43:59,273 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-24 19:43:59,273 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-24 19:43:59,274 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-24 19:43:59,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 19:43:59,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 19:43:59,492 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-24 19:43:59,492 INFO L430 AbstractCegarLoop]: === Iteration 3 === [DeviceThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-06-24 19:43:59,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-24 19:43:59,493 INFO L82 PathProgramCache]: Analyzing trace with hash 20042365, now seen corresponding path program 1 times [2021-06-24 19:43:59,493 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-24 19:43:59,493 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885105153] [2021-06-24 19:43:59,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-24 19:43:59,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-24 19:43:59,722 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-06-24 19:43:59,722 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-24 19:43:59,722 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885105153] [2021-06-24 19:43:59,722 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885105153] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-24 19:43:59,723 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-24 19:43:59,723 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-24 19:43:59,723 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454844454] [2021-06-24 19:43:59,724 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-24 19:43:59,724 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-24 19:43:59,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-24 19:43:59,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2021-06-24 19:43:59,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-24 19:43:59,727 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-24 19:43:59,727 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 6 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-24 19:43:59,727 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-24 19:43:59,727 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-24 19:43:59,728 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-24 19:43:59,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 19:43:59,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 19:43:59,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-24 19:43:59,900 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-24 19:43:59,901 INFO L430 AbstractCegarLoop]: === Iteration 4 === [DeviceThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-06-24 19:43:59,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-24 19:43:59,902 INFO L82 PathProgramCache]: Analyzing trace with hash -624619857, now seen corresponding path program 1 times [2021-06-24 19:43:59,902 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-24 19:43:59,902 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740461192] [2021-06-24 19:43:59,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-24 19:43:59,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-24 19:43:59,924 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-24 19:43:59,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-24 19:43:59,938 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-24 19:43:59,971 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-06-24 19:43:59,971 INFO L605 BasicCegarLoop]: Counterexample might be feasible [2021-06-24 19:43:59,972 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-24 19:43:59,978 INFO L301 ceAbstractionStarter]: Result for error location DeviceThreadThread1of1ForFork6 was UNSAFE (1/8) [2021-06-24 19:43:59,980 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-24 19:44:00,005 INFO L202 PluginConnector]: Adding new model bluetooth07-incorrect.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.06 07:44:00 BasicIcfg [2021-06-24 19:44:00,005 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-24 19:44:00,011 INFO L168 Benchmark]: Toolchain (without parser) took 1769.52 ms. Allocated memory was 187.7 MB in the beginning and 319.8 MB in the end (delta: 132.1 MB). Free memory was 167.9 MB in the beginning and 283.2 MB in the end (delta: -115.3 MB). Peak memory consumption was 76.6 MB. Max. memory is 8.0 GB. [2021-06-24 19:44:00,011 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.12 ms. Allocated memory is still 187.7 MB. Free memory is still 169.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-06-24 19:44:00,011 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.24 ms. Allocated memory is still 187.7 MB. Free memory was 167.8 MB in the beginning and 166.0 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-06-24 19:44:00,011 INFO L168 Benchmark]: Boogie Preprocessor took 13.67 ms. Allocated memory is still 187.7 MB. Free memory was 166.0 MB in the beginning and 165.2 MB in the end (delta: 851.5 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-06-24 19:44:00,012 INFO L168 Benchmark]: RCFGBuilder took 225.29 ms. Allocated memory is still 187.7 MB. Free memory was 165.1 MB in the beginning and 152.4 MB in the end (delta: 12.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-06-24 19:44:00,012 INFO L168 Benchmark]: TraceAbstraction took 1488.69 ms. Allocated memory was 187.7 MB in the beginning and 319.8 MB in the end (delta: 132.1 MB). Free memory was 151.9 MB in the beginning and 283.2 MB in the end (delta: -131.3 MB). Peak memory consumption was 60.9 MB. Max. memory is 8.0 GB. [2021-06-24 19:44:00,014 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 187.7 MB. Free memory is still 169.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 37.24 ms. Allocated memory is still 187.7 MB. Free memory was 167.8 MB in the beginning and 166.0 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 13.67 ms. Allocated memory is still 187.7 MB. Free memory was 166.0 MB in the beginning and 165.2 MB in the end (delta: 851.5 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 225.29 ms. Allocated memory is still 187.7 MB. Free memory was 165.1 MB in the beginning and 152.4 MB in the end (delta: 12.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1488.69 ms. Allocated memory was 187.7 MB in the beginning and 319.8 MB in the end (delta: 132.1 MB). Free memory was 151.9 MB in the beginning and 283.2 MB in the end (delta: -131.3 MB). Peak memory consumption was 60.9 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 42190, positive: 40158, positive conditional: 40158, positive unconditional: 0, negative: 2032, negative conditional: 2032, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 40199, positive: 40158, positive conditional: 40158, positive unconditional: 0, negative: 41, negative conditional: 41, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 40199, positive: 40152, positive conditional: 0, positive unconditional: 40152, negative: 47, negative conditional: 0, negative unconditional: 47, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 373, positive: 361, positive conditional: 0, positive unconditional: 361, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 373, positive: 347, positive conditional: 0, positive unconditional: 347, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 26, positive: 14, positive conditional: 0, positive unconditional: 14, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 32, positive: 16, positive conditional: 2, positive unconditional: 14, negative: 16, negative conditional: 4, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 99, positive: 50, positive conditional: 7, positive unconditional: 43, negative: 49, negative conditional: 6, negative unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 40199, positive: 39791, positive conditional: 0, positive unconditional: 39791, negative: 35, negative conditional: 0, negative unconditional: 35, unknown: 373, unknown conditional: 0, unknown unconditional: 373] , Statistics on independence cache: Total cache size (in pairs): 379, Positive cache size: 363, Positive conditional cache size: 2, Positive unconditional cache size: 361, Negative cache size: 16, Negative conditional cache size: 4, Negative unconditional cache size: 12, SemanticConditionEliminator.Independence Queries: [ total: 112, positive: 6, positive conditional: 6, positive unconditional: 0, negative: 106, negative conditional: 10, negative unconditional: 96, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 112, positive: 6, positive conditional: 6, positive unconditional: 0, negative: 106, negative conditional: 10, negative unconditional: 96, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 32, positive: 16, positive conditional: 2, positive unconditional: 14, negative: 16, negative conditional: 4, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 99, positive: 50, positive conditional: 7, positive unconditional: 43, negative: 49, negative conditional: 6, negative unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 112, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 102, negative conditional: 6, negative unconditional: 96, unknown: 6, unknown conditional: 6, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 379, Positive cache size: 363, Positive conditional cache size: 2, Positive unconditional cache size: 361, Negative cache size: 16, Negative conditional cache size: 4, Negative unconditional cache size: 12, Eliminated conditions: 96, SemanticConditionEliminator.Independence Queries: [ total: 112, positive: 6, positive conditional: 6, positive unconditional: 0, negative: 106, negative conditional: 10, negative unconditional: 96, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 112, positive: 6, positive conditional: 6, positive unconditional: 0, negative: 106, negative conditional: 10, negative unconditional: 96, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 32, positive: 16, positive conditional: 2, positive unconditional: 14, negative: 16, negative conditional: 4, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 99, positive: 50, positive conditional: 7, positive unconditional: 43, negative: 49, negative conditional: 6, negative unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 112, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 102, negative conditional: 6, negative unconditional: 96, unknown: 6, unknown conditional: 6, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 379, Positive cache size: 363, Positive conditional cache size: 2, Positive unconditional cache size: 361, Negative cache size: 16, Negative conditional cache size: 4, Negative unconditional cache size: 12, Eliminated conditions: 96, SemanticConditionEliminator.Independence Queries: [ total: 112, positive: 6, positive conditional: 6, positive unconditional: 0, negative: 106, negative conditional: 10, negative unconditional: 96, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 112, positive: 6, positive conditional: 6, positive unconditional: 0, negative: 106, negative conditional: 10, negative unconditional: 96, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 32, positive: 16, positive conditional: 2, positive unconditional: 14, negative: 16, negative conditional: 4, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 99, positive: 50, positive conditional: 7, positive unconditional: 43, negative: 49, negative conditional: 6, negative unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 112, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 102, negative conditional: 6, negative unconditional: 96, unknown: 6, unknown conditional: 6, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 379, Positive cache size: 363, Positive conditional cache size: 2, Positive unconditional cache size: 361, Negative cache size: 16, Negative conditional cache size: 4, Negative unconditional cache size: 12, Eliminated conditions: 96 ], Maximal queried relation: 3, Independence queries for same thread: 1991 - CounterExampleResult [Line: 38]: 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] [L48] 2 assume !stoppingFlag; VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L49] 2 pendingIo := pendingIo + 1; VAL [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=false] [L38] 2 assert !stopped; VAL [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=false] [L57] 2 pendingIo := pendingIo - 1; [L58] 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] [L48] 3 assume !stoppingFlag; VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L49] 3 pendingIo := pendingIo + 1; VAL [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=false] [L38] 3 assert !stopped; VAL [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=false] [L57] 3 pendingIo := pendingIo - 1; [L58] 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] [L48] 4 assume !stoppingFlag; VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L49] 4 pendingIo := pendingIo + 1; VAL [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=false] [L38] 4 assert !stopped; VAL [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=false] [L57] 4 pendingIo := pendingIo - 1; [L58] 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] [L48] 5 assume !stoppingFlag; VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L49] 5 pendingIo := pendingIo + 1; VAL [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=false] [L38] 5 assert !stopped; VAL [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=false] [L57] 5 pendingIo := pendingIo - 1; [L58] COND FALSE 5 !(pendingIo == 0) VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L23] FORK 0 fork 5 DeviceThread(); VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L48] 6 assume !stoppingFlag; VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L49] 6 pendingIo := pendingIo + 1; VAL [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=false] [L38] 6 assert !stopped; VAL [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=false] [L57] 6 pendingIo := pendingIo - 1; [L58] COND FALSE 6 !(pendingIo == 0) VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L24] FORK 0 fork 6 DeviceThread(); VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L48] 7 assume !stoppingFlag; VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L70] 1 stoppingFlag := true; VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=true] [L80] 1 pendingIo := pendingIo - 1; [L81] COND TRUE 1 pendingIo == 0 [L82] 1 stoppingEvent := true; VAL [pendingIo=0, stopped=false, stoppingEvent=true, stoppingFlag=true] [L49] 7 pendingIo := pendingIo + 1; VAL [pendingIo=1, stopped=false, stoppingEvent=true, stoppingFlag=true] [L72] 1 assume stoppingEvent; VAL [pendingIo=1, stopped=false, stoppingEvent=true, stoppingFlag=true] [L73] 1 stopped := true; VAL [pendingIo=1, stopped=true, stoppingEvent=true, stoppingFlag=true] [L38] 7 assert !stopped; VAL [pendingIo=1, stopped=true, stoppingEvent=true, stoppingFlag=true] - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: DeviceThreadThread1of1ForFork6 with 1 thread instances CFG has 11 procedures, 82 locations, 16 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1344.8ms, OverallIterations: 4, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 10.5ms, PartialOrderReductionTime: 792.8ms, 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: 12.3ms SsaConstructionTime, 94.6ms SatisfiabilityAnalysisTime, 226.8ms InterpolantComputationTime, 161 NumberOfCodeBlocks, 161 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 115 ConstructedInterpolants, 0 QuantifiedInterpolants, 372 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 10/10 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...