/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/bluetooth-incorrect04.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-1c3aa5735269c4be989a50fc1da9ea7b9492ef29-1c3aa57 [2021-07-01 12:47:56,861 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-01 12:47:56,863 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-01 12:47:56,895 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-01 12:47:56,958 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 [2021-07-01 12:47:56,981 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-01 12:47:56,981 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-01 12:47:56,981 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-01 12:47:56,981 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-01 12:47:56,982 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-01 12:47:56,982 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-01 12:47:56,982 INFO L138 SettingsManager]: * Use SBE=true [2021-07-01 12:47:56,983 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-01 12:47:56,983 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-01 12:47:56,983 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-01 12:47:56,983 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-01 12:47:56,983 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-01 12:47:56,983 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-01 12:47:56,983 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-01 12:47:56,983 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-01 12:47:56,984 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-01 12:47:56,984 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-01 12:47:56,984 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-01 12:47:56,984 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-01 12:47:56,984 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-01 12:47:56,984 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-01 12:47:56,984 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-01 12:47:56,984 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-01 12:47:56,984 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-01 12:47:56,985 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-01 12:47:56,985 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-01 12:47:56,985 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-01 12:47:56,985 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-01 12:47:56,985 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-01 12:47:56,985 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-01 12:47:56,985 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-07-01 12:47:56,985 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-01 12:47:56,986 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-07-01 12:47:56,986 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-01 12:47:57,224 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-01 12:47:57,237 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-01 12:47:57,239 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-01 12:47:57,239 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-01 12:47:57,240 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-01 12:47:57,241 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-incorrect04.bpl [2021-07-01 12:47:57,241 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-incorrect04.bpl' [2021-07-01 12:47:57,256 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-01 12:47:57,258 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-01 12:47:57,258 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-01 12:47:57,259 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-01 12:47:57,259 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-01 12:47:57,267 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "bluetooth-incorrect04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 12:47:57" (1/1) ... [2021-07-01 12:47:57,271 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "bluetooth-incorrect04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 12:47:57" (1/1) ... [2021-07-01 12:47:57,281 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-01 12:47:57,282 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-01 12:47:57,283 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-01 12:47:57,283 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-01 12:47:57,288 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "bluetooth-incorrect04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 12:47:57" (1/1) ... [2021-07-01 12:47:57,288 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "bluetooth-incorrect04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 12:47:57" (1/1) ... [2021-07-01 12:47:57,288 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "bluetooth-incorrect04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 12:47:57" (1/1) ... [2021-07-01 12:47:57,289 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "bluetooth-incorrect04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 12:47:57" (1/1) ... [2021-07-01 12:47:57,290 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "bluetooth-incorrect04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 12:47:57" (1/1) ... [2021-07-01 12:47:57,291 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "bluetooth-incorrect04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 12:47:57" (1/1) ... [2021-07-01 12:47:57,292 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "bluetooth-incorrect04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 12:47:57" (1/1) ... [2021-07-01 12:47:57,292 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-01 12:47:57,293 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-01 12:47:57,293 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-01 12:47:57,293 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-01 12:47:57,294 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "bluetooth-incorrect04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 12:47:57" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-01 12:47:57,363 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThreadWithAssert given in one single declaration [2021-07-01 12:47:57,363 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThreadWithAssert [2021-07-01 12:47:57,363 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThreadWithAssert [2021-07-01 12:47:57,363 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThread given in one single declaration [2021-07-01 12:47:57,363 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThread [2021-07-01 12:47:57,363 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThread [2021-07-01 12:47:57,364 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ServerThread given in one single declaration [2021-07-01 12:47:57,364 INFO L130 BoogieDeclarations]: Found specification of procedure ServerThread [2021-07-01 12:47:57,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ServerThread [2021-07-01 12:47:57,364 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-01 12:47:57,364 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-01 12:47:57,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-01 12:47:57,365 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-01 12:47:57,534 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-01 12:47:57,534 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-07-01 12:47:57,536 INFO L202 PluginConnector]: Adding new model bluetooth-incorrect04.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:47:57 BoogieIcfgContainer [2021-07-01 12:47:57,536 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-01 12:47:57,537 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-01 12:47:57,537 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-01 12:47:57,539 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-01 12:47:57,539 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-incorrect04.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 12:47:57" (1/2) ... [2021-07-01 12:47:57,540 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b1cbc81 and model type bluetooth-incorrect04.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 12:47:57, skipping insertion in model container [2021-07-01 12:47:57,540 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-incorrect04.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:47:57" (2/2) ... [2021-07-01 12:47:57,541 INFO L111 eAbstractionObserver]: Analyzing ICFG bluetooth-incorrect04.bpl [2021-07-01 12:47:57,544 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-01 12:47:57,544 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-01 12:47:57,545 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-01 12:47:57,545 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-01 12:47:57,569 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-07-01 12:47:57,594 INFO L255 AbstractCegarLoop]: Starting to check reachability of 5 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-07-01 12:47:57,666 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-01 12:47:57,666 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-01 12:47:57,666 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-01 12:47:57,666 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-01 12:47:57,666 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-01 12:47:57,667 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-01 12:47:57,667 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-01 12:47:57,667 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-01 12:47:57,841 INFO L301 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE (1/2) [2021-07-01 12:47:57,842 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-07-01 12:47:57,900 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-01 12:47:57,900 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-01 12:47:57,900 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-01 12:47:57,901 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-01 12:47:57,901 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-01 12:47:57,901 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-01 12:47:57,901 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-01 12:47:57,901 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == DeviceThreadWithAssertThread1of1ForFork1======== [2021-07-01 12:47:58,030 INFO L430 AbstractCegarLoop]: === Iteration 1 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 12:47:58,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 12:47:58,034 INFO L82 PathProgramCache]: Analyzing trace with hash -881129112, now seen corresponding path program 1 times [2021-07-01 12:47:58,039 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 12:47:58,039 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108183555] [2021-07-01 12:47:58,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 12:47:58,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 12:47:58,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-01 12:47:58,133 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 12:47:58,133 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108183555] [2021-07-01 12:47:58,134 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108183555] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-01 12:47:58,134 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-01 12:47:58,134 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-01 12:47:58,134 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236359608] [2021-07-01 12:47:58,139 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-01 12:47:58,139 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 12:47:58,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-01 12:47:58,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-01 12:47:58,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 12:47:58,148 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 12:47:58,149 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-01 12:47:58,149 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 12:47:58,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 12:47:58,184 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-01 12:47:58,184 INFO L430 AbstractCegarLoop]: === Iteration 2 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 12:47:58,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 12:47:58,191 INFO L82 PathProgramCache]: Analyzing trace with hash 1029635733, now seen corresponding path program 1 times [2021-07-01 12:47:58,192 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 12:47:58,192 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397272880] [2021-07-01 12:47:58,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 12:47:58,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 12:47:58,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-01 12:47:58,214 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 12:47:58,214 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397272880] [2021-07-01 12:47:58,215 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397272880] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-01 12:47:58,215 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-01 12:47:58,215 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-07-01 12:47:58,216 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561554027] [2021-07-01 12:47:58,217 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-01 12:47:58,217 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 12:47:58,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-01 12:47:58,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-01 12:47:58,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 12:47:58,219 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 12:47:58,219 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-01 12:47:58,219 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 12:47:58,219 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 12:47:58,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 12:47:58,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 12:47:58,413 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-01 12:47:58,413 INFO L430 AbstractCegarLoop]: === Iteration 3 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 12:47:58,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 12:47:58,414 INFO L82 PathProgramCache]: Analyzing trace with hash 1545574769, now seen corresponding path program 1 times [2021-07-01 12:47:58,414 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 12:47:58,414 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590361240] [2021-07-01 12:47:58,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 12:47:58,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 12:47:58,528 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-01 12:47:58,528 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 12:47:58,528 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590361240] [2021-07-01 12:47:58,529 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590361240] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-01 12:47:58,529 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-01 12:47:58,529 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-01 12:47:58,529 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761278946] [2021-07-01 12:47:58,530 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-01 12:47:58,530 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 12:47:58,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-01 12:47:58,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2021-07-01 12:47:58,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 12:47:58,530 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 12:47:58,530 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 6 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) [2021-07-01 12:47:58,531 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 12:47:58,531 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 12:47:58,531 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 12:47:59,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 12:47:59,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 12:47:59,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-01 12:47:59,147 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-07-01 12:47:59,147 INFO L430 AbstractCegarLoop]: === Iteration 4 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 12:47:59,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 12:47:59,148 INFO L82 PathProgramCache]: Analyzing trace with hash 2118034229, now seen corresponding path program 1 times [2021-07-01 12:47:59,148 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 12:47:59,149 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285806961] [2021-07-01 12:47:59,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 12:47:59,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-01 12:47:59,158 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-01 12:47:59,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-01 12:47:59,173 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-01 12:47:59,188 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-01 12:47:59,188 INFO L605 BasicCegarLoop]: Counterexample might be feasible [2021-07-01 12:47:59,188 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-07-01 12:47:59,191 INFO L301 ceAbstractionStarter]: Result for error location DeviceThreadWithAssertThread1of1ForFork1 was UNSAFE (2/2) [2021-07-01 12:47:59,192 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-07-01 12:47:59,200 INFO L202 PluginConnector]: Adding new model bluetooth-incorrect04.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 12:47:59 BasicIcfg [2021-07-01 12:47:59,200 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-01 12:47:59,202 INFO L168 Benchmark]: Toolchain (without parser) took 1944.03 ms. Allocated memory was 174.1 MB in the beginning and 212.9 MB in the end (delta: 38.8 MB). Free memory was 153.5 MB in the beginning and 174.2 MB in the end (delta: -20.8 MB). Peak memory consumption was 19.1 MB. Max. memory is 8.0 GB. [2021-07-01 12:47:59,202 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.12 ms. Allocated memory is still 174.1 MB. Free memory is still 154.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-07-01 12:47:59,202 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.30 ms. Allocated memory is still 174.1 MB. Free memory was 153.4 MB in the beginning and 151.6 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-07-01 12:47:59,203 INFO L168 Benchmark]: Boogie Preprocessor took 9.87 ms. Allocated memory is still 174.1 MB. Free memory was 151.5 MB in the beginning and 150.7 MB in the end (delta: 871.1 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-07-01 12:47:59,203 INFO L168 Benchmark]: RCFGBuilder took 243.20 ms. Allocated memory is still 174.1 MB. Free memory was 150.6 MB in the beginning and 136.3 MB in the end (delta: 14.3 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-07-01 12:47:59,203 INFO L168 Benchmark]: TraceAbstraction took 1663.19 ms. Allocated memory was 174.1 MB in the beginning and 212.9 MB in the end (delta: 38.8 MB). Free memory was 135.8 MB in the beginning and 174.2 MB in the end (delta: -38.4 MB). Peak memory consumption was 1.3 MB. Max. memory is 8.0 GB. [2021-07-01 12:47:59,204 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 174.1 MB. Free memory is still 154.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 23.30 ms. Allocated memory is still 174.1 MB. Free memory was 153.4 MB in the beginning and 151.6 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 9.87 ms. Allocated memory is still 174.1 MB. Free memory was 151.5 MB in the beginning and 150.7 MB in the end (delta: 871.1 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 243.20 ms. Allocated memory is still 174.1 MB. Free memory was 150.6 MB in the beginning and 136.3 MB in the end (delta: 14.3 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1663.19 ms. Allocated memory was 174.1 MB in the beginning and 212.9 MB in the end (delta: 38.8 MB). Free memory was 135.8 MB in the beginning and 174.2 MB in the end (delta: -38.4 MB). Peak memory consumption was 1.3 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: 611, positive: 601, positive conditional: 37, positive unconditional: 564, negative: 10, negative conditional: 6, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 605, positive: 601, positive conditional: 37, positive unconditional: 564, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 605, positive: 601, positive conditional: 0, positive unconditional: 601, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 500, positive: 496, positive conditional: 0, positive unconditional: 496, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 500, positive: 492, positive conditional: 0, positive unconditional: 492, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 8, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 8, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 65, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 61, negative conditional: 0, negative unconditional: 61, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 605, positive: 105, positive conditional: 0, positive unconditional: 105, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 500, unknown conditional: 0, unknown unconditional: 500] , Statistics on independence cache: Total cache size (in pairs): 500, Positive cache size: 496, Positive conditional cache size: 0, Positive unconditional cache size: 496, Negative cache size: 4, Negative conditional cache size: 0, Negative unconditional cache size: 4 ], Maximal queried relation: 0, Independence queries for same thread: 6 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 125, Number of persistent set computation: 14, Number of trivial persistent sets: 10, Underlying independence relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 611, positive: 601, positive conditional: 37, positive unconditional: 564, negative: 10, negative conditional: 6, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 605, positive: 601, positive conditional: 37, positive unconditional: 564, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 605, positive: 601, positive conditional: 0, positive unconditional: 601, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 500, positive: 496, positive conditional: 0, positive unconditional: 496, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 500, positive: 492, positive conditional: 0, positive unconditional: 492, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 8, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 8, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 65, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 61, negative conditional: 0, negative unconditional: 61, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 605, positive: 105, positive conditional: 0, positive unconditional: 105, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 500, unknown conditional: 0, unknown unconditional: 500] , Statistics on independence cache: Total cache size (in pairs): 500, Positive cache size: 496, Positive conditional cache size: 0, Positive unconditional cache size: 496, Negative cache size: 4, Negative conditional cache size: 0, Negative unconditional cache size: 4 ], Maximal queried relation: 0, Independence queries for same thread: 6 - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 12099, positive: 11513, positive conditional: 10444, positive unconditional: 1069, negative: 586, negative conditional: 534, negative unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 11660, positive: 11513, positive conditional: 10444, positive unconditional: 1069, negative: 147, negative conditional: 95, negative unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 11660, positive: 11111, positive conditional: 0, positive unconditional: 11111, negative: 549, negative conditional: 0, negative unconditional: 549, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 708, positive: 674, positive conditional: 0, positive unconditional: 674, negative: 34, negative conditional: 0, negative unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 708, positive: 644, positive conditional: 0, positive unconditional: 644, negative: 64, negative conditional: 0, negative unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 64, positive: 30, positive conditional: 0, positive unconditional: 30, negative: 34, negative conditional: 0, negative unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 86, positive: 50, positive conditional: 20, positive unconditional: 30, negative: 36, negative conditional: 2, negative unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 276, positive: 134, positive conditional: 50, positive unconditional: 85, negative: 142, negative conditional: 3, negative unconditional: 139, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 11660, positive: 10437, positive conditional: 0, positive unconditional: 10437, negative: 515, negative conditional: 0, negative unconditional: 515, unknown: 708, unknown conditional: 0, unknown unconditional: 708] , Statistics on independence cache: Total cache size (in pairs): 730, Positive cache size: 694, Positive conditional cache size: 20, Positive unconditional cache size: 674, Negative cache size: 36, Negative conditional cache size: 2, Negative unconditional cache size: 34, SemanticConditionEliminator.Independence Queries: [ total: 1575, positive: 402, positive conditional: 402, positive unconditional: 0, negative: 1173, negative conditional: 3, negative unconditional: 1170, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1575, positive: 402, positive conditional: 402, positive unconditional: 0, negative: 1173, negative conditional: 3, negative unconditional: 1170, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 86, positive: 50, positive conditional: 20, positive unconditional: 30, negative: 36, negative conditional: 2, negative unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 276, positive: 134, positive conditional: 50, positive unconditional: 85, negative: 142, negative conditional: 3, negative unconditional: 139, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1575, positive: 382, positive conditional: 382, positive unconditional: 0, negative: 1171, negative conditional: 1, negative unconditional: 1170, unknown: 22, unknown conditional: 22, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 730, Positive cache size: 694, Positive conditional cache size: 20, Positive unconditional cache size: 674, Negative cache size: 36, Negative conditional cache size: 2, Negative unconditional cache size: 34, Eliminated conditions: 1079, SemanticConditionEliminator.Independence Queries: [ total: 1575, positive: 402, positive conditional: 402, positive unconditional: 0, negative: 1173, negative conditional: 3, negative unconditional: 1170, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1575, positive: 402, positive conditional: 402, positive unconditional: 0, negative: 1173, negative conditional: 3, negative unconditional: 1170, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 86, positive: 50, positive conditional: 20, positive unconditional: 30, negative: 36, negative conditional: 2, negative unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 276, positive: 134, positive conditional: 50, positive unconditional: 85, negative: 142, negative conditional: 3, negative unconditional: 139, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1575, positive: 382, positive conditional: 382, positive unconditional: 0, negative: 1171, negative conditional: 1, negative unconditional: 1170, unknown: 22, unknown conditional: 22, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 730, Positive cache size: 694, Positive conditional cache size: 20, Positive unconditional cache size: 674, Negative cache size: 36, Negative conditional cache size: 2, Negative unconditional cache size: 34, Eliminated conditions: 1079, SemanticConditionEliminator.Independence Queries: [ total: 1575, positive: 402, positive conditional: 402, positive unconditional: 0, negative: 1173, negative conditional: 3, negative unconditional: 1170, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1575, positive: 402, positive conditional: 402, positive unconditional: 0, negative: 1173, negative conditional: 3, negative unconditional: 1170, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 86, positive: 50, positive conditional: 20, positive unconditional: 30, negative: 36, negative conditional: 2, negative unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 276, positive: 134, positive conditional: 50, positive unconditional: 85, negative: 142, negative conditional: 3, negative unconditional: 139, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1575, positive: 382, positive conditional: 382, positive unconditional: 0, negative: 1171, negative conditional: 1, negative unconditional: 1170, unknown: 22, unknown conditional: 22, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 730, Positive cache size: 694, Positive conditional cache size: 20, Positive unconditional cache size: 674, Negative cache size: 36, Negative conditional cache size: 2, Negative unconditional cache size: 34, Eliminated conditions: 1079 ], Maximal queried relation: 3, Independence queries for same thread: 439 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 600, Number of persistent set computation: 3309, Number of trivial persistent sets: 3002, Underlying independence relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 12099, positive: 11513, positive conditional: 10444, positive unconditional: 1069, negative: 586, negative conditional: 534, negative unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 11660, positive: 11513, positive conditional: 10444, positive unconditional: 1069, negative: 147, negative conditional: 95, negative unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 11660, positive: 11111, positive conditional: 0, positive unconditional: 11111, negative: 549, negative conditional: 0, negative unconditional: 549, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 708, positive: 674, positive conditional: 0, positive unconditional: 674, negative: 34, negative conditional: 0, negative unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 708, positive: 644, positive conditional: 0, positive unconditional: 644, negative: 64, negative conditional: 0, negative unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 64, positive: 30, positive conditional: 0, positive unconditional: 30, negative: 34, negative conditional: 0, negative unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 86, positive: 50, positive conditional: 20, positive unconditional: 30, negative: 36, negative conditional: 2, negative unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 276, positive: 134, positive conditional: 50, positive unconditional: 85, negative: 142, negative conditional: 3, negative unconditional: 139, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 11660, positive: 10437, positive conditional: 0, positive unconditional: 10437, negative: 515, negative conditional: 0, negative unconditional: 515, unknown: 708, unknown conditional: 0, unknown unconditional: 708] , Statistics on independence cache: Total cache size (in pairs): 730, Positive cache size: 694, Positive conditional cache size: 20, Positive unconditional cache size: 674, Negative cache size: 36, Negative conditional cache size: 2, Negative unconditional cache size: 34, SemanticConditionEliminator.Independence Queries: [ total: 1575, positive: 402, positive conditional: 402, positive unconditional: 0, negative: 1173, negative conditional: 3, negative unconditional: 1170, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1575, positive: 402, positive conditional: 402, positive unconditional: 0, negative: 1173, negative conditional: 3, negative unconditional: 1170, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 86, positive: 50, positive conditional: 20, positive unconditional: 30, negative: 36, negative conditional: 2, negative unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 276, positive: 134, positive conditional: 50, positive unconditional: 85, negative: 142, negative conditional: 3, negative unconditional: 139, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1575, positive: 382, positive conditional: 382, positive unconditional: 0, negative: 1171, negative conditional: 1, negative unconditional: 1170, unknown: 22, unknown conditional: 22, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 730, Positive cache size: 694, Positive conditional cache size: 20, Positive unconditional cache size: 674, Negative cache size: 36, Negative conditional cache size: 2, Negative unconditional cache size: 34, Eliminated conditions: 1079, SemanticConditionEliminator.Independence Queries: [ total: 1575, positive: 402, positive conditional: 402, positive unconditional: 0, negative: 1173, negative conditional: 3, negative unconditional: 1170, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1575, positive: 402, positive conditional: 402, positive unconditional: 0, negative: 1173, negative conditional: 3, negative unconditional: 1170, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 86, positive: 50, positive conditional: 20, positive unconditional: 30, negative: 36, negative conditional: 2, negative unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 276, positive: 134, positive conditional: 50, positive unconditional: 85, negative: 142, negative conditional: 3, negative unconditional: 139, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1575, positive: 382, positive conditional: 382, positive unconditional: 0, negative: 1171, negative conditional: 1, negative unconditional: 1170, unknown: 22, unknown conditional: 22, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 730, Positive cache size: 694, Positive conditional cache size: 20, Positive unconditional cache size: 674, Negative cache size: 36, Negative conditional cache size: 2, Negative unconditional cache size: 34, Eliminated conditions: 1079, SemanticConditionEliminator.Independence Queries: [ total: 1575, positive: 402, positive conditional: 402, positive unconditional: 0, negative: 1173, negative conditional: 3, negative unconditional: 1170, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1575, positive: 402, positive conditional: 402, positive unconditional: 0, negative: 1173, negative conditional: 3, negative unconditional: 1170, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 86, positive: 50, positive conditional: 20, positive unconditional: 30, negative: 36, negative conditional: 2, negative unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 276, positive: 134, positive conditional: 50, positive unconditional: 85, negative: 142, negative conditional: 3, negative unconditional: 139, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1575, positive: 382, positive conditional: 382, positive unconditional: 0, negative: 1171, negative conditional: 1, negative unconditional: 1170, unknown: 22, unknown conditional: 22, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 730, Positive cache size: 694, Positive conditional cache size: 20, Positive unconditional cache size: 674, Negative cache size: 36, Negative conditional cache size: 2, Negative unconditional cache size: 34, Eliminated conditions: 1079 ], Maximal queried relation: 3, Independence queries for same thread: 439 - CounterExampleResult [Line: 37]: assertion can be violated assertion can be violated We found a FailurePath: [L14] 0 pendingIo := 1; VAL [pendingIo=1] [L15] 0 stopped := false; VAL [pendingIo=1, stopped=false] [L16] 0 stoppingEvent := false; VAL [pendingIo=1, stopped=false, stoppingEvent=false] [L17] 0 stoppingFlag := false; VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L19] FORK 0 fork 0 ServerThread(); VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L21] FORK 0 fork 1 DeviceThreadWithAssert(); VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L59] 2 assume !stoppingFlag; VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L81] 1 stoppingFlag := true; VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=true] [L91] 1 pendingIo := pendingIo - 1; [L92] COND TRUE 1 pendingIo == 0 [L93] 1 stoppingEvent := true; VAL [pendingIo=0, stopped=false, stoppingEvent=true, stoppingFlag=true] [L60] 2 pendingIo := pendingIo + 1; VAL [pendingIo=1, stopped=false, stoppingEvent=true, stoppingFlag=true] [L83] 1 assume stoppingEvent; VAL [pendingIo=1, stopped=false, stoppingEvent=true, stoppingFlag=true] [L84] 1 stopped := true; VAL [pendingIo=1, stopped=true, stoppingEvent=true, stoppingFlag=true] [L37] 2 assert !stopped; VAL [pendingIo=1, stopped=true, stoppingEvent=true, stoppingFlag=true] - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 9 procedures, 56 locations, 7 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 233.5ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 7.6ms, PartialOrderReductionTime: 155.5ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: DeviceThreadWithAssertThread1of1ForFork1 with 1 thread instances CFG has 9 procedures, 56 locations, 7 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1333.0ms, OverallIterations: 4, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1.2ms, PartialOrderReductionTime: 971.7ms, 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: 5.5ms SsaConstructionTime, 41.2ms SatisfiabilityAnalysisTime, 139.4ms InterpolantComputationTime, 59 NumberOfCodeBlocks, 59 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 43 ConstructedInterpolants, 0 QuantifiedInterpolants, 140 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 5/5 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...