/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-DelaySleepPersistent-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-incorrect05.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-1c3aa5735269c4be989a50fc1da9ea7b9492ef29-1c3aa57 [2021-07-01 12:23:06,078 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-01 12:23:06,080 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-01 12:23:06,109 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-01 12:23:06,110 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-01 12:23:06,113 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-01 12:23:06,117 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-01 12:23:06,126 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-01 12:23:06,128 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-01 12:23:06,130 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-01 12:23:06,131 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-01 12:23:06,132 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-01 12:23:06,132 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-01 12:23:06,133 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-01 12:23:06,134 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-01 12:23:06,135 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-01 12:23:06,135 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-01 12:23:06,136 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-01 12:23:06,137 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-01 12:23:06,139 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-01 12:23:06,140 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-01 12:23:06,146 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-01 12:23:06,149 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-01 12:23:06,152 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-01 12:23:06,159 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-01 12:23:06,160 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-01 12:23:06,160 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-01 12:23:06,162 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-01 12:23:06,162 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-01 12:23:06,163 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-01 12:23:06,164 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-01 12:23:06,164 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-01 12:23:06,166 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-01 12:23:06,166 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-01 12:23:06,167 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-01 12:23:06,167 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-01 12:23:06,168 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-01 12:23:06,168 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-01 12:23:06,168 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-01 12:23:06,169 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-01 12:23:06,170 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-01 12:23:06,174 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-DelaySleepPersistent-NoLbe.epf [2021-07-01 12:23:06,214 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-01 12:23:06,214 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-01 12:23:06,215 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-01 12:23:06,215 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-01 12:23:06,221 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-01 12:23:06,221 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-01 12:23:06,221 INFO L138 SettingsManager]: * Use SBE=true [2021-07-01 12:23:06,221 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-01 12:23:06,221 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-01 12:23:06,222 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-01 12:23:06,222 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-01 12:23:06,223 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-01 12:23:06,223 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-01 12:23:06,223 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-01 12:23:06,223 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-01 12:23:06,223 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-01 12:23:06,223 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-01 12:23:06,223 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-01 12:23:06,223 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-01 12:23:06,224 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-01 12:23:06,224 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-01 12:23:06,224 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-01 12:23:06,224 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-01 12:23:06,224 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-01 12:23:06,224 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-01 12:23:06,225 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-01 12:23:06,225 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-01 12:23:06,225 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-01 12:23:06,225 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-01 12:23:06,225 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-01 12:23:06,225 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-07-01 12:23:06,225 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-01 12:23:06,226 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_DELAY_SET [2021-07-01 12:23:06,226 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-01 12:23:06,506 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-01 12:23:06,535 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-01 12:23:06,537 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-01 12:23:06,538 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-01 12:23:06,539 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-01 12:23:06,540 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-incorrect05.bpl [2021-07-01 12:23:06,540 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-incorrect05.bpl' [2021-07-01 12:23:06,560 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-01 12:23:06,562 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-01 12:23:06,562 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-01 12:23:06,563 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-01 12:23:06,563 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-01 12:23:06,573 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "bluetooth-incorrect05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 12:23:06" (1/1) ... [2021-07-01 12:23:06,579 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "bluetooth-incorrect05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 12:23:06" (1/1) ... [2021-07-01 12:23:06,593 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-01 12:23:06,594 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-01 12:23:06,594 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-01 12:23:06,595 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-01 12:23:06,601 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "bluetooth-incorrect05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 12:23:06" (1/1) ... [2021-07-01 12:23:06,602 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "bluetooth-incorrect05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 12:23:06" (1/1) ... [2021-07-01 12:23:06,602 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "bluetooth-incorrect05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 12:23:06" (1/1) ... [2021-07-01 12:23:06,603 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "bluetooth-incorrect05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 12:23:06" (1/1) ... [2021-07-01 12:23:06,604 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "bluetooth-incorrect05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 12:23:06" (1/1) ... [2021-07-01 12:23:06,607 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "bluetooth-incorrect05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 12:23:06" (1/1) ... [2021-07-01 12:23:06,607 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "bluetooth-incorrect05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 12:23:06" (1/1) ... [2021-07-01 12:23:06,608 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-01 12:23:06,609 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-01 12:23:06,609 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-01 12:23:06,610 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-01 12:23:06,611 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "bluetooth-incorrect05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 12:23:06" (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 12:23:06,664 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThreadWithAssert given in one single declaration [2021-07-01 12:23:06,664 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThreadWithAssert [2021-07-01 12:23:06,664 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThreadWithAssert [2021-07-01 12:23:06,664 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThread given in one single declaration [2021-07-01 12:23:06,665 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThread [2021-07-01 12:23:06,665 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThread [2021-07-01 12:23:06,665 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ServerThread given in one single declaration [2021-07-01 12:23:06,665 INFO L130 BoogieDeclarations]: Found specification of procedure ServerThread [2021-07-01 12:23:06,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ServerThread [2021-07-01 12:23:06,665 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-01 12:23:06,665 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-01 12:23:06,666 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-01 12:23:06,666 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 12:23:06,981 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-01 12:23:06,981 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-07-01 12:23:06,983 INFO L202 PluginConnector]: Adding new model bluetooth-incorrect05.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:23:06 BoogieIcfgContainer [2021-07-01 12:23:06,983 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-01 12:23:06,984 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-01 12:23:06,985 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-01 12:23:06,987 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-01 12:23:06,987 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-incorrect05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 12:23:06" (1/2) ... [2021-07-01 12:23:06,988 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2be293c4 and model type bluetooth-incorrect05.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 12:23:06, skipping insertion in model container [2021-07-01 12:23:06,988 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-incorrect05.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:23:06" (2/2) ... [2021-07-01 12:23:06,989 INFO L111 eAbstractionObserver]: Analyzing ICFG bluetooth-incorrect05.bpl [2021-07-01 12:23:07,006 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-01 12:23:07,006 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-01 12:23:07,007 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-01 12:23:07,007 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-01 12:23:07,076 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-07-01 12:23:07,100 INFO L255 AbstractCegarLoop]: Starting to check reachability of 6 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-07-01 12:23:07,172 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-01 12:23:07,172 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-01 12:23:07,173 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-01 12:23:07,173 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-01 12:23:07,173 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-01 12:23:07,173 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-01 12:23:07,173 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-01 12:23:07,173 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-01 12:23:07,352 INFO L301 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE (1/2) [2021-07-01 12:23:07,354 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 12:23:07,365 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-01 12:23:07,366 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-01 12:23:07,366 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-01 12:23:07,366 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-01 12:23:07,366 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-01 12:23:07,366 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-01 12:23:07,366 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-01 12:23:07,366 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == DeviceThreadWithAssertThread1of1ForFork1======== [2021-07-01 12:23:07,514 INFO L430 AbstractCegarLoop]: === Iteration 1 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 12:23:07,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 12:23:07,518 INFO L82 PathProgramCache]: Analyzing trace with hash 991956788, now seen corresponding path program 1 times [2021-07-01 12:23:07,527 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 12:23:07,527 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489930210] [2021-07-01 12:23:07,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 12:23:07,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 12:23:07,622 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 12:23:07,622 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 12:23:07,623 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489930210] [2021-07-01 12:23:07,623 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489930210] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-01 12:23:07,623 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-01 12:23:07,624 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-07-01 12:23:07,624 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247661401] [2021-07-01 12:23:07,628 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-01 12:23:07,628 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 12:23:07,638 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-01 12:23:07,644 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-01 12:23:07,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 12:23:07,645 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 12:23:07,648 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 12:23:07,648 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 12:23:07,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 12:23:07,798 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-01 12:23:07,798 INFO L430 AbstractCegarLoop]: === Iteration 2 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 12:23:07,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 12:23:07,805 INFO L82 PathProgramCache]: Analyzing trace with hash 773765356, now seen corresponding path program 1 times [2021-07-01 12:23:07,806 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 12:23:07,806 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354494461] [2021-07-01 12:23:07,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 12:23:07,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 12:23:07,952 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-01 12:23:07,953 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 12:23:07,953 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354494461] [2021-07-01 12:23:07,954 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354494461] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 12:23:07,954 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1568215524] [2021-07-01 12:23:07,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-01 12:23:08,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 12:23:08,013 WARN L261 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 24 conjunts are in the unsatisfiable core [2021-07-01 12:23:08,017 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-01 12:23:08,257 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-01 12:23:08,258 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1568215524] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 12:23:08,258 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-01 12:23:08,258 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2021-07-01 12:23:08,259 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570662192] [2021-07-01 12:23:08,260 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-07-01 12:23:08,260 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 12:23:08,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-07-01 12:23:08,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2021-07-01 12:23:08,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 12:23:08,262 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 12:23:08,262 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 4.0) internal successors, (44), 10 states have internal predecessors, (44), 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 12:23:08,262 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 12:23:08,262 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 12:23:08,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 12:23:08,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-01 12:23:08,741 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-01 12:23:08,741 INFO L430 AbstractCegarLoop]: === Iteration 3 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 12:23:08,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 12:23:08,742 INFO L82 PathProgramCache]: Analyzing trace with hash -1729586944, now seen corresponding path program 1 times [2021-07-01 12:23:08,742 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 12:23:08,742 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948696734] [2021-07-01 12:23:08,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 12:23:08,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 12:23:08,766 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-07-01 12:23:08,766 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 12:23:08,766 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948696734] [2021-07-01 12:23:08,767 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948696734] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-01 12:23:08,767 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-01 12:23:08,767 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-01 12:23:08,767 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288061430] [2021-07-01 12:23:08,767 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-01 12:23:08,767 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 12:23:08,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-01 12:23:08,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-01 12:23:08,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 12:23:08,768 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 12:23:08,768 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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 12:23:08,768 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 12:23:08,769 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-07-01 12:23:08,769 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 12:23:09,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 12:23:09,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-01 12:23:09,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 12:23:09,987 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-07-01 12:23:09,987 INFO L430 AbstractCegarLoop]: === Iteration 4 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 12:23:09,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 12:23:09,988 INFO L82 PathProgramCache]: Analyzing trace with hash -1530589996, now seen corresponding path program 1 times [2021-07-01 12:23:09,988 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 12:23:09,988 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552957324] [2021-07-01 12:23:09,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 12:23:09,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-01 12:23:09,998 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-01 12:23:10,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-01 12:23:10,008 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-01 12:23:10,024 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-01 12:23:10,024 INFO L605 BasicCegarLoop]: Counterexample might be feasible [2021-07-01 12:23:10,025 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-07-01 12:23:10,029 INFO L301 ceAbstractionStarter]: Result for error location DeviceThreadWithAssertThread1of1ForFork1 was UNSAFE (2/2) [2021-07-01 12:23:10,031 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-07-01 12:23:10,042 INFO L202 PluginConnector]: Adding new model bluetooth-incorrect05.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 12:23:10 BasicIcfg [2021-07-01 12:23:10,042 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-01 12:23:10,043 INFO L168 Benchmark]: Toolchain (without parser) took 3481.00 ms. Allocated memory was 178.3 MB in the beginning and 240.1 MB in the end (delta: 61.9 MB). Free memory was 158.1 MB in the beginning and 97.9 MB in the end (delta: 60.2 MB). Peak memory consumption was 123.6 MB. Max. memory is 8.0 GB. [2021-07-01 12:23:10,047 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.15 ms. Allocated memory is still 178.3 MB. Free memory is still 159.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-07-01 12:23:10,047 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.86 ms. Allocated memory is still 178.3 MB. Free memory was 157.9 MB in the beginning and 156.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-07-01 12:23:10,048 INFO L168 Benchmark]: Boogie Preprocessor took 14.42 ms. Allocated memory is still 178.3 MB. Free memory was 156.2 MB in the beginning and 155.2 MB in the end (delta: 974.8 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-07-01 12:23:10,051 INFO L168 Benchmark]: RCFGBuilder took 373.88 ms. Allocated memory is still 178.3 MB. Free memory was 155.2 MB in the beginning and 140.7 MB in the end (delta: 14.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2021-07-01 12:23:10,052 INFO L168 Benchmark]: TraceAbstraction took 3057.64 ms. Allocated memory was 178.3 MB in the beginning and 240.1 MB in the end (delta: 61.9 MB). Free memory was 140.4 MB in the beginning and 97.9 MB in the end (delta: 42.5 MB). Peak memory consumption was 105.8 MB. Max. memory is 8.0 GB. [2021-07-01 12:23:10,053 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 0.15 ms. Allocated memory is still 178.3 MB. Free memory is still 159.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 30.86 ms. Allocated memory is still 178.3 MB. Free memory was 157.9 MB in the beginning and 156.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 14.42 ms. Allocated memory is still 178.3 MB. Free memory was 156.2 MB in the beginning and 155.2 MB in the end (delta: 974.8 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 373.88 ms. Allocated memory is still 178.3 MB. Free memory was 155.2 MB in the beginning and 140.7 MB in the end (delta: 14.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3057.64 ms. Allocated memory was 178.3 MB in the beginning and 240.1 MB in the end (delta: 61.9 MB). Free memory was 140.4 MB in the beginning and 97.9 MB in the end (delta: 42.5 MB). Peak memory consumption was 105.8 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: 1107, positive: 1092, positive conditional: 76, positive unconditional: 1016, negative: 15, negative conditional: 10, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 1097, positive: 1092, positive conditional: 76, positive unconditional: 1016, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 1097, positive: 1092, positive conditional: 0, positive unconditional: 1092, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 757, positive: 752, positive conditional: 0, positive unconditional: 752, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 757, positive: 747, positive conditional: 0, positive unconditional: 747, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 10, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 10, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 77, positive: 19, positive conditional: 0, positive unconditional: 19, negative: 58, negative conditional: 0, negative unconditional: 58, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1097, positive: 340, positive conditional: 0, positive unconditional: 340, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 757, unknown conditional: 0, unknown unconditional: 757] , Statistics on independence cache: Total cache size (in pairs): 757, Positive cache size: 752, Positive conditional cache size: 0, Positive unconditional cache size: 752, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 ], Maximal queried relation: 0, Independence queries for same thread: 10 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 121, Number of persistent set computation: 20, Number of trivial persistent sets: 15, Underlying independence relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1107, positive: 1092, positive conditional: 76, positive unconditional: 1016, negative: 15, negative conditional: 10, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 1097, positive: 1092, positive conditional: 76, positive unconditional: 1016, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 1097, positive: 1092, positive conditional: 0, positive unconditional: 1092, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 757, positive: 752, positive conditional: 0, positive unconditional: 752, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 757, positive: 747, positive conditional: 0, positive unconditional: 747, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 10, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 10, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 77, positive: 19, positive conditional: 0, positive unconditional: 19, negative: 58, negative conditional: 0, negative unconditional: 58, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1097, positive: 340, positive conditional: 0, positive unconditional: 340, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 757, unknown conditional: 0, unknown unconditional: 757] , Statistics on independence cache: Total cache size (in pairs): 757, Positive cache size: 752, Positive conditional cache size: 0, Positive unconditional cache size: 752, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 ], Maximal queried relation: 0, Independence queries for same thread: 10 - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 37474, positive: 36511, positive conditional: 34365, positive unconditional: 2146, negative: 963, negative conditional: 843, negative unconditional: 120, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 36818, positive: 36511, positive conditional: 34365, positive unconditional: 2146, negative: 307, negative conditional: 187, negative unconditional: 120, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 36818, positive: 35362, positive conditional: 0, positive unconditional: 35362, negative: 1456, negative conditional: 0, negative unconditional: 1456, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1304, positive: 1242, positive conditional: 0, positive unconditional: 1242, negative: 62, negative conditional: 0, negative unconditional: 62, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1304, positive: 1183, positive conditional: 0, positive unconditional: 1183, negative: 121, negative conditional: 0, negative unconditional: 121, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 121, positive: 59, positive conditional: 0, positive unconditional: 59, negative: 62, negative conditional: 0, negative unconditional: 62, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 189, positive: 118, positive conditional: 59, positive unconditional: 59, negative: 71, negative conditional: 9, negative unconditional: 62, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 468, positive: 245, positive conditional: 93, positive unconditional: 151, negative: 224, negative conditional: 21, negative unconditional: 203, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 36818, positive: 34120, positive conditional: 0, positive unconditional: 34120, negative: 1394, negative conditional: 0, negative unconditional: 1394, unknown: 1304, unknown conditional: 0, unknown unconditional: 1304] , Statistics on independence cache: Total cache size (in pairs): 1372, Positive cache size: 1301, Positive conditional cache size: 59, Positive unconditional cache size: 1242, Negative cache size: 71, Negative conditional cache size: 9, Negative unconditional cache size: 62, SemanticConditionEliminator.Independence Queries: [ total: 3057, positive: 1149, positive conditional: 1149, positive unconditional: 0, negative: 1908, negative conditional: 15, negative unconditional: 1893, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 3057, positive: 1149, positive conditional: 1149, positive unconditional: 0, negative: 1908, negative conditional: 15, negative unconditional: 1893, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 189, positive: 118, positive conditional: 59, positive unconditional: 59, negative: 71, negative conditional: 9, negative unconditional: 62, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 468, positive: 245, positive conditional: 93, positive unconditional: 151, negative: 224, negative conditional: 21, negative unconditional: 203, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3057, positive: 1090, positive conditional: 1090, positive unconditional: 0, negative: 1899, negative conditional: 6, negative unconditional: 1893, unknown: 68, unknown conditional: 68, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1372, Positive cache size: 1301, Positive conditional cache size: 59, Positive unconditional cache size: 1242, Negative cache size: 71, Negative conditional cache size: 9, Negative unconditional cache size: 62, Eliminated conditions: 1672, SemanticConditionEliminator.Independence Queries: [ total: 3057, positive: 1149, positive conditional: 1149, positive unconditional: 0, negative: 1908, negative conditional: 15, negative unconditional: 1893, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 3057, positive: 1149, positive conditional: 1149, positive unconditional: 0, negative: 1908, negative conditional: 15, negative unconditional: 1893, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 189, positive: 118, positive conditional: 59, positive unconditional: 59, negative: 71, negative conditional: 9, negative unconditional: 62, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 468, positive: 245, positive conditional: 93, positive unconditional: 151, negative: 224, negative conditional: 21, negative unconditional: 203, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3057, positive: 1090, positive conditional: 1090, positive unconditional: 0, negative: 1899, negative conditional: 6, negative unconditional: 1893, unknown: 68, unknown conditional: 68, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1372, Positive cache size: 1301, Positive conditional cache size: 59, Positive unconditional cache size: 1242, Negative cache size: 71, Negative conditional cache size: 9, Negative unconditional cache size: 62, Eliminated conditions: 1672, SemanticConditionEliminator.Independence Queries: [ total: 3057, positive: 1149, positive conditional: 1149, positive unconditional: 0, negative: 1908, negative conditional: 15, negative unconditional: 1893, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 3057, positive: 1149, positive conditional: 1149, positive unconditional: 0, negative: 1908, negative conditional: 15, negative unconditional: 1893, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 189, positive: 118, positive conditional: 59, positive unconditional: 59, negative: 71, negative conditional: 9, negative unconditional: 62, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 468, positive: 245, positive conditional: 93, positive unconditional: 151, negative: 224, negative conditional: 21, negative unconditional: 203, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3057, positive: 1090, positive conditional: 1090, positive unconditional: 0, negative: 1899, negative conditional: 6, negative unconditional: 1893, unknown: 68, unknown conditional: 68, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1372, Positive cache size: 1301, Positive conditional cache size: 59, Positive unconditional cache size: 1242, Negative cache size: 71, Negative conditional cache size: 9, Negative unconditional cache size: 62, Eliminated conditions: 1672 ], Maximal queried relation: 3, Independence queries for same thread: 656 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 913, Number of persistent set computation: 4418, Number of trivial persistent sets: 2249, Underlying independence relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 37474, positive: 36511, positive conditional: 34365, positive unconditional: 2146, negative: 963, negative conditional: 843, negative unconditional: 120, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 36818, positive: 36511, positive conditional: 34365, positive unconditional: 2146, negative: 307, negative conditional: 187, negative unconditional: 120, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 36818, positive: 35362, positive conditional: 0, positive unconditional: 35362, negative: 1456, negative conditional: 0, negative unconditional: 1456, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1304, positive: 1242, positive conditional: 0, positive unconditional: 1242, negative: 62, negative conditional: 0, negative unconditional: 62, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1304, positive: 1183, positive conditional: 0, positive unconditional: 1183, negative: 121, negative conditional: 0, negative unconditional: 121, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 121, positive: 59, positive conditional: 0, positive unconditional: 59, negative: 62, negative conditional: 0, negative unconditional: 62, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 189, positive: 118, positive conditional: 59, positive unconditional: 59, negative: 71, negative conditional: 9, negative unconditional: 62, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 468, positive: 245, positive conditional: 93, positive unconditional: 151, negative: 224, negative conditional: 21, negative unconditional: 203, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 36818, positive: 34120, positive conditional: 0, positive unconditional: 34120, negative: 1394, negative conditional: 0, negative unconditional: 1394, unknown: 1304, unknown conditional: 0, unknown unconditional: 1304] , Statistics on independence cache: Total cache size (in pairs): 1372, Positive cache size: 1301, Positive conditional cache size: 59, Positive unconditional cache size: 1242, Negative cache size: 71, Negative conditional cache size: 9, Negative unconditional cache size: 62, SemanticConditionEliminator.Independence Queries: [ total: 3057, positive: 1149, positive conditional: 1149, positive unconditional: 0, negative: 1908, negative conditional: 15, negative unconditional: 1893, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 3057, positive: 1149, positive conditional: 1149, positive unconditional: 0, negative: 1908, negative conditional: 15, negative unconditional: 1893, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 189, positive: 118, positive conditional: 59, positive unconditional: 59, negative: 71, negative conditional: 9, negative unconditional: 62, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 468, positive: 245, positive conditional: 93, positive unconditional: 151, negative: 224, negative conditional: 21, negative unconditional: 203, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3057, positive: 1090, positive conditional: 1090, positive unconditional: 0, negative: 1899, negative conditional: 6, negative unconditional: 1893, unknown: 68, unknown conditional: 68, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1372, Positive cache size: 1301, Positive conditional cache size: 59, Positive unconditional cache size: 1242, Negative cache size: 71, Negative conditional cache size: 9, Negative unconditional cache size: 62, Eliminated conditions: 1672, SemanticConditionEliminator.Independence Queries: [ total: 3057, positive: 1149, positive conditional: 1149, positive unconditional: 0, negative: 1908, negative conditional: 15, negative unconditional: 1893, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 3057, positive: 1149, positive conditional: 1149, positive unconditional: 0, negative: 1908, negative conditional: 15, negative unconditional: 1893, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 189, positive: 118, positive conditional: 59, positive unconditional: 59, negative: 71, negative conditional: 9, negative unconditional: 62, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 468, positive: 245, positive conditional: 93, positive unconditional: 151, negative: 224, negative conditional: 21, negative unconditional: 203, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3057, positive: 1090, positive conditional: 1090, positive unconditional: 0, negative: 1899, negative conditional: 6, negative unconditional: 1893, unknown: 68, unknown conditional: 68, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1372, Positive cache size: 1301, Positive conditional cache size: 59, Positive unconditional cache size: 1242, Negative cache size: 71, Negative conditional cache size: 9, Negative unconditional cache size: 62, Eliminated conditions: 1672, SemanticConditionEliminator.Independence Queries: [ total: 3057, positive: 1149, positive conditional: 1149, positive unconditional: 0, negative: 1908, negative conditional: 15, negative unconditional: 1893, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 3057, positive: 1149, positive conditional: 1149, positive unconditional: 0, negative: 1908, negative conditional: 15, negative unconditional: 1893, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 189, positive: 118, positive conditional: 59, positive unconditional: 59, negative: 71, negative conditional: 9, negative unconditional: 62, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 468, positive: 245, positive conditional: 93, positive unconditional: 151, negative: 224, negative conditional: 21, negative unconditional: 203, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3057, positive: 1090, positive conditional: 1090, positive unconditional: 0, negative: 1899, negative conditional: 6, negative unconditional: 1893, unknown: 68, unknown conditional: 68, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1372, Positive cache size: 1301, Positive conditional cache size: 59, Positive unconditional cache size: 1242, Negative cache size: 71, Negative conditional cache size: 9, Negative unconditional cache size: 62, Eliminated conditions: 1672 ], Maximal queried relation: 3, Independence queries for same thread: 656 - CounterExampleResult [Line: 38]: assertion can be violated assertion can be violated We found a FailurePath: [L14] 0 pendingIo := 1; VAL [pendingIo=1] [L15] 0 stopped := false; VAL [pendingIo=1, stopped=false] [L16] 0 stoppingEvent := false; VAL [pendingIo=1, stopped=false, stoppingEvent=false] [L17] 0 stoppingFlag := false; VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L19] FORK 0 fork 0 ServerThread(); VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L21] FORK 0 fork 1 DeviceThreadWithAssert(); VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L60] 2 assume !stoppingFlag; VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L82] 1 stoppingFlag := true; VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=true] [L92] 1 pendingIo := pendingIo - 1; [L93] COND TRUE 1 pendingIo == 0 [L94] 1 stoppingEvent := true; VAL [pendingIo=0, stopped=false, stoppingEvent=true, stoppingFlag=true] [L61] 2 pendingIo := pendingIo + 1; VAL [pendingIo=1, stopped=false, stoppingEvent=true, stoppingFlag=true] [L84] 1 assume stoppingEvent; VAL [pendingIo=1, stopped=false, stoppingEvent=true, stoppingFlag=true] [L85] 1 stopped := true; VAL [pendingIo=1, stopped=true, stoppingEvent=true, stoppingFlag=true] [L38] 2 assert !stopped; VAL [pendingIo=1, stopped=true, stoppingEvent=true, stoppingFlag=true] - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 10 procedures, 62 locations, 8 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 218.4ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 13.8ms, PartialOrderReductionTime: 152.4ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: DeviceThreadWithAssertThread1of1ForFork1 with 1 thread instances CFG has 10 procedures, 62 locations, 8 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2669.2ms, OverallIterations: 4, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1.4ms, PartialOrderReductionTime: 1767.7ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 15, 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: 10.4ms SsaConstructionTime, 60.2ms SatisfiabilityAnalysisTime, 419.5ms InterpolantComputationTime, 117 NumberOfCodeBlocks, 117 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 100 ConstructedInterpolants, 0 QuantifiedInterpolants, 299 SizeOfPredicates, 1 NumberOfNonLiveVariables, 43 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 33/43 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...