/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-DelaySleep-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-incorrect02.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-1c3aa5735269c4be989a50fc1da9ea7b9492ef29-1c3aa57 [2021-07-01 10:18:21,242 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-01 10:18:21,244 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-01 10:18:21,268 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-01 10:18:21,268 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-01 10:18:21,269 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-01 10:18:21,271 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-01 10:18:21,272 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-01 10:18:21,274 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-01 10:18:21,274 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-01 10:18:21,275 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-01 10:18:21,276 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-01 10:18:21,277 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-01 10:18:21,278 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-01 10:18:21,278 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-01 10:18:21,279 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-01 10:18:21,280 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-01 10:18:21,281 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-01 10:18:21,282 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-01 10:18:21,284 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-01 10:18:21,285 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-01 10:18:21,286 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-01 10:18:21,287 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-01 10:18:21,288 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-01 10:18:21,291 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-01 10:18:21,291 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-01 10:18:21,291 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-01 10:18:21,292 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-01 10:18:21,293 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-01 10:18:21,294 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-01 10:18:21,294 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-01 10:18:21,294 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-01 10:18:21,309 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-01 10:18:21,311 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-01 10:18:21,312 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-01 10:18:21,312 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-01 10:18:21,313 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-01 10:18:21,313 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-01 10:18:21,313 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-01 10:18:21,315 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-01 10:18:21,316 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-01 10:18:21,320 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-DelaySleep-NoLbe.epf [2021-07-01 10:18:21,358 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-01 10:18:21,358 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-01 10:18:21,359 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-01 10:18:21,359 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-01 10:18:21,361 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-01 10:18:21,361 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-01 10:18:21,362 INFO L138 SettingsManager]: * Use SBE=true [2021-07-01 10:18:21,362 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-01 10:18:21,362 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-01 10:18:21,362 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-01 10:18:21,363 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-01 10:18:21,363 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-01 10:18:21,363 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-01 10:18:21,363 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-01 10:18:21,363 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-01 10:18:21,363 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-01 10:18:21,364 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-01 10:18:21,364 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-01 10:18:21,364 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-01 10:18:21,364 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-01 10:18:21,364 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-01 10:18:21,364 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-01 10:18:21,364 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-01 10:18:21,365 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-01 10:18:21,365 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-01 10:18:21,365 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-01 10:18:21,365 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-01 10:18:21,366 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-01 10:18:21,366 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-01 10:18:21,366 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-01 10:18:21,366 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-07-01 10:18:21,366 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-01 10:18:21,366 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-07-01 10:18:21,366 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-01 10:18:21,640 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-01 10:18:21,662 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-01 10:18:21,664 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-01 10:18:21,665 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-01 10:18:21,667 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-01 10:18:21,668 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-incorrect02.bpl [2021-07-01 10:18:21,668 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-incorrect02.bpl' [2021-07-01 10:18:21,688 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-01 10:18:21,689 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-01 10:18:21,691 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-01 10:18:21,691 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-01 10:18:21,691 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-01 10:18:21,704 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "bluetooth-incorrect02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 10:18:21" (1/1) ... [2021-07-01 10:18:21,712 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "bluetooth-incorrect02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 10:18:21" (1/1) ... [2021-07-01 10:18:21,728 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-01 10:18:21,731 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-01 10:18:21,731 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-01 10:18:21,731 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-01 10:18:21,738 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "bluetooth-incorrect02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 10:18:21" (1/1) ... [2021-07-01 10:18:21,739 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "bluetooth-incorrect02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 10:18:21" (1/1) ... [2021-07-01 10:18:21,739 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "bluetooth-incorrect02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 10:18:21" (1/1) ... [2021-07-01 10:18:21,740 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "bluetooth-incorrect02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 10:18:21" (1/1) ... [2021-07-01 10:18:21,742 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "bluetooth-incorrect02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 10:18:21" (1/1) ... [2021-07-01 10:18:21,744 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "bluetooth-incorrect02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 10:18:21" (1/1) ... [2021-07-01 10:18:21,745 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "bluetooth-incorrect02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 10:18:21" (1/1) ... [2021-07-01 10:18:21,746 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-01 10:18:21,746 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-01 10:18:21,746 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-01 10:18:21,747 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-01 10:18:21,748 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "bluetooth-incorrect02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 10:18:21" (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 10:18:21,810 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThreadWithAssert given in one single declaration [2021-07-01 10:18:21,810 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThreadWithAssert [2021-07-01 10:18:21,811 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThreadWithAssert [2021-07-01 10:18:21,811 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThread given in one single declaration [2021-07-01 10:18:21,811 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThread [2021-07-01 10:18:21,811 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThread [2021-07-01 10:18:21,811 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ServerThread given in one single declaration [2021-07-01 10:18:21,811 INFO L130 BoogieDeclarations]: Found specification of procedure ServerThread [2021-07-01 10:18:21,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ServerThread [2021-07-01 10:18:21,811 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-01 10:18:21,812 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-01 10:18:21,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-01 10:18:21,812 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 10:18:21,997 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-01 10:18:21,997 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-07-01 10:18:21,999 INFO L202 PluginConnector]: Adding new model bluetooth-incorrect02.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 10:18:21 BoogieIcfgContainer [2021-07-01 10:18:22,000 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-01 10:18:22,001 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-01 10:18:22,001 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-01 10:18:22,004 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-01 10:18:22,004 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-incorrect02.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 10:18:21" (1/2) ... [2021-07-01 10:18:22,005 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57c819d2 and model type bluetooth-incorrect02.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 10:18:22, skipping insertion in model container [2021-07-01 10:18:22,005 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-incorrect02.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 10:18:21" (2/2) ... [2021-07-01 10:18:22,007 INFO L111 eAbstractionObserver]: Analyzing ICFG bluetooth-incorrect02.bpl [2021-07-01 10:18:22,011 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-01 10:18:22,011 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-01 10:18:22,012 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-01 10:18:22,012 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-01 10:18:22,038 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-07-01 10:18:22,070 INFO L255 AbstractCegarLoop]: Starting to check reachability of 3 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 10:18:22,153 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-01 10:18:22,154 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-01 10:18:22,154 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-01 10:18:22,154 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-01 10:18:22,154 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-01 10:18:22,154 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-01 10:18:22,154 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-01 10:18:22,154 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-01 10:18:22,332 INFO L301 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE (1/2) [2021-07-01 10:18:22,333 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 10:18:22,354 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-01 10:18:22,354 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-01 10:18:22,354 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-01 10:18:22,355 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-01 10:18:22,355 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-01 10:18:22,355 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-01 10:18:22,355 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-01 10:18:22,355 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == DeviceThreadWithAssertThread1of1ForFork1======== [2021-07-01 10:18:22,361 INFO L430 AbstractCegarLoop]: === Iteration 1 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 10:18:22,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 10:18:22,365 INFO L82 PathProgramCache]: Analyzing trace with hash -420506062, now seen corresponding path program 1 times [2021-07-01 10:18:22,378 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 10:18:22,379 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564724099] [2021-07-01 10:18:22,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 10:18:22,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 10:18:22,521 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 10:18:22,521 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 10:18:22,522 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564724099] [2021-07-01 10:18:22,522 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564724099] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-01 10:18:22,522 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-01 10:18:22,522 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-01 10:18:22,523 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059470010] [2021-07-01 10:18:22,526 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-01 10:18:22,527 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 10:18:22,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-01 10:18:22,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-01 10:18:22,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 10:18:22,540 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 10:18:22,541 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 10:18:22,541 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 10:18:22,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 10:18:22,601 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-01 10:18:22,601 INFO L430 AbstractCegarLoop]: === Iteration 2 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 10:18:22,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 10:18:22,602 INFO L82 PathProgramCache]: Analyzing trace with hash -756815345, now seen corresponding path program 1 times [2021-07-01 10:18:22,602 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 10:18:22,602 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587741826] [2021-07-01 10:18:22,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 10:18:22,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 10:18:22,615 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 10:18:22,616 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 10:18:22,616 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587741826] [2021-07-01 10:18:22,616 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587741826] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-01 10:18:22,616 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-01 10:18:22,616 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-07-01 10:18:22,616 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748867798] [2021-07-01 10:18:22,618 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-01 10:18:22,618 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 10:18:22,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-01 10:18:22,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-01 10:18:22,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 10:18:22,619 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 10:18:22,619 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 10:18:22,619 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 10:18:22,619 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 10:18:22,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 10:18:22,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 10:18:22,675 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-01 10:18:22,675 INFO L430 AbstractCegarLoop]: === Iteration 3 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 10:18:22,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 10:18:22,675 INFO L82 PathProgramCache]: Analyzing trace with hash -448037368, now seen corresponding path program 1 times [2021-07-01 10:18:22,676 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 10:18:22,676 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1749570497] [2021-07-01 10:18:22,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 10:18:22,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 10:18:22,769 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 10:18:22,769 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 10:18:22,770 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1749570497] [2021-07-01 10:18:22,770 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1749570497] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 10:18:22,770 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [195954820] [2021-07-01 10:18:22,770 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 10:18:22,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 10:18:22,815 WARN L261 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 24 conjunts are in the unsatisfiable core [2021-07-01 10:18:22,821 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-01 10:18:22,944 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 10:18:22,944 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [195954820] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 10:18:22,944 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-01 10:18:22,944 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2021-07-01 10:18:22,945 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663236248] [2021-07-01 10:18:22,945 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-07-01 10:18:22,945 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 10:18:22,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-07-01 10:18:22,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2021-07-01 10:18:22,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 10:18:22,946 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 10:18:22,947 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 10 states have internal predecessors, (46), 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 10:18:22,947 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 10:18:22,947 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 10:18:22,947 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 10:18:23,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 10:18:23,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 10:18:23,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-01 10:18:23,237 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-01 10:18:23,237 INFO L430 AbstractCegarLoop]: === Iteration 4 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 10:18:23,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 10:18:23,238 INFO L82 PathProgramCache]: Analyzing trace with hash -1712078673, now seen corresponding path program 1 times [2021-07-01 10:18:23,238 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 10:18:23,238 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246827167] [2021-07-01 10:18:23,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 10:18:23,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-01 10:18:23,243 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-01 10:18:23,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-01 10:18:23,247 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-01 10:18:23,271 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-01 10:18:23,272 INFO L605 BasicCegarLoop]: Counterexample might be feasible [2021-07-01 10:18:23,272 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-07-01 10:18:23,275 INFO L301 ceAbstractionStarter]: Result for error location DeviceThreadWithAssertThread1of1ForFork1 was UNSAFE (2/2) [2021-07-01 10:18:23,279 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-07-01 10:18:23,307 INFO L202 PluginConnector]: Adding new model bluetooth-incorrect02.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 10:18:23 BasicIcfg [2021-07-01 10:18:23,307 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-01 10:18:23,309 INFO L168 Benchmark]: Toolchain (without parser) took 1619.01 ms. Allocated memory is still 218.1 MB. Free memory was 198.7 MB in the beginning and 200.9 MB in the end (delta: -2.1 MB). Peak memory consumption was 59.7 MB. Max. memory is 8.0 GB. [2021-07-01 10:18:23,312 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.17 ms. Allocated memory is still 218.1 MB. Free memory was 199.9 MB in the beginning and 199.8 MB in the end (delta: 110.2 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-07-01 10:18:23,313 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.87 ms. Allocated memory is still 218.1 MB. Free memory was 198.6 MB in the beginning and 196.9 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-07-01 10:18:23,313 INFO L168 Benchmark]: Boogie Preprocessor took 14.77 ms. Allocated memory is still 218.1 MB. Free memory was 196.9 MB in the beginning and 195.9 MB in the end (delta: 939.9 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-07-01 10:18:23,313 INFO L168 Benchmark]: RCFGBuilder took 253.32 ms. Allocated memory is still 218.1 MB. Free memory was 195.9 MB in the beginning and 181.6 MB in the end (delta: 14.4 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-07-01 10:18:23,313 INFO L168 Benchmark]: TraceAbstraction took 1306.40 ms. Allocated memory is still 218.1 MB. Free memory was 181.1 MB in the beginning and 200.9 MB in the end (delta: -19.7 MB). Peak memory consumption was 41.8 MB. Max. memory is 8.0 GB. [2021-07-01 10:18:23,315 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 0.17 ms. Allocated memory is still 218.1 MB. Free memory was 199.9 MB in the beginning and 199.8 MB in the end (delta: 110.2 kB). There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 38.87 ms. Allocated memory is still 218.1 MB. Free memory was 198.6 MB in the beginning and 196.9 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 14.77 ms. Allocated memory is still 218.1 MB. Free memory was 196.9 MB in the beginning and 195.9 MB in the end (delta: 939.9 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 253.32 ms. Allocated memory is still 218.1 MB. Free memory was 195.9 MB in the beginning and 181.6 MB in the end (delta: 14.4 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1306.40 ms. Allocated memory is still 218.1 MB. Free memory was 181.1 MB in the beginning and 200.9 MB in the end (delta: -19.7 MB). Peak memory consumption was 41.8 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: 40, positive: 33, positive conditional: 33, positive unconditional: 0, negative: 7, negative conditional: 7, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 35, positive: 33, positive conditional: 33, positive unconditional: 0, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 35, positive: 33, positive conditional: 0, positive unconditional: 33, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 35, positive: 33, positive conditional: 0, positive unconditional: 33, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 35, positive: 29, positive conditional: 0, positive unconditional: 29, negative: 6, negative conditional: 0, negative unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 6, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 6, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 111, positive: 101, positive conditional: 0, positive unconditional: 101, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 35, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 35, unknown conditional: 0, unknown unconditional: 35] , Statistics on independence cache: Total cache size (in pairs): 35, Positive cache size: 33, Positive conditional cache size: 0, Positive unconditional cache size: 33, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2 ], Maximal queried relation: 0, Independence queries for same thread: 5 - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 743, positive: 658, positive conditional: 658, positive unconditional: 0, negative: 85, negative conditional: 85, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 673, positive: 658, positive conditional: 658, positive unconditional: 0, negative: 15, negative conditional: 15, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 673, positive: 652, positive conditional: 0, positive unconditional: 652, negative: 21, negative conditional: 0, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 89, positive: 82, positive conditional: 0, positive unconditional: 82, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 89, positive: 74, positive conditional: 0, positive unconditional: 74, negative: 15, negative conditional: 0, negative unconditional: 15, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 15, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 19, positive: 10, positive conditional: 2, positive unconditional: 8, negative: 9, negative conditional: 2, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 68, positive: 25, positive conditional: 5, positive unconditional: 20, negative: 43, negative conditional: 3, negative unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 673, positive: 570, positive conditional: 0, positive unconditional: 570, negative: 14, negative conditional: 0, negative unconditional: 14, unknown: 89, unknown conditional: 0, unknown unconditional: 89] , Statistics on independence cache: Total cache size (in pairs): 93, Positive cache size: 84, Positive conditional cache size: 2, Positive unconditional cache size: 82, Negative cache size: 9, Negative conditional cache size: 2, Negative unconditional cache size: 7, SemanticConditionEliminator.Independence Queries: [ total: 54, positive: 6, positive conditional: 6, positive unconditional: 0, negative: 48, negative conditional: 3, negative unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 54, positive: 6, positive conditional: 6, positive unconditional: 0, negative: 48, negative conditional: 3, negative unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 19, positive: 10, positive conditional: 2, positive unconditional: 8, negative: 9, negative conditional: 2, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 68, positive: 25, positive conditional: 5, positive unconditional: 20, negative: 43, negative conditional: 3, negative unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 54, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 46, negative conditional: 1, negative unconditional: 45, unknown: 4, unknown conditional: 4, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 93, Positive cache size: 84, Positive conditional cache size: 2, Positive unconditional cache size: 82, Negative cache size: 9, Negative conditional cache size: 2, Negative unconditional cache size: 7, Eliminated conditions: 45, SemanticConditionEliminator.Independence Queries: [ total: 54, positive: 6, positive conditional: 6, positive unconditional: 0, negative: 48, negative conditional: 3, negative unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 54, positive: 6, positive conditional: 6, positive unconditional: 0, negative: 48, negative conditional: 3, negative unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 19, positive: 10, positive conditional: 2, positive unconditional: 8, negative: 9, negative conditional: 2, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 68, positive: 25, positive conditional: 5, positive unconditional: 20, negative: 43, negative conditional: 3, negative unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 54, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 46, negative conditional: 1, negative unconditional: 45, unknown: 4, unknown conditional: 4, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 93, Positive cache size: 84, Positive conditional cache size: 2, Positive unconditional cache size: 82, Negative cache size: 9, Negative conditional cache size: 2, Negative unconditional cache size: 7, Eliminated conditions: 45, SemanticConditionEliminator.Independence Queries: [ total: 54, positive: 6, positive conditional: 6, positive unconditional: 0, negative: 48, negative conditional: 3, negative unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 54, positive: 6, positive conditional: 6, positive unconditional: 0, negative: 48, negative conditional: 3, negative unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 19, positive: 10, positive conditional: 2, positive unconditional: 8, negative: 9, negative conditional: 2, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 68, positive: 25, positive conditional: 5, positive unconditional: 20, negative: 43, negative conditional: 3, negative unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 54, positive: 4, positive conditional: 4, positive unconditional: 0, negative: 46, negative conditional: 1, negative unconditional: 45, unknown: 4, unknown conditional: 4, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 93, Positive cache size: 84, Positive conditional cache size: 2, Positive unconditional cache size: 82, Negative cache size: 9, Negative conditional cache size: 2, Negative unconditional cache size: 7, Eliminated conditions: 45 ], Maximal queried relation: 3, Independence queries for same thread: 70 - CounterExampleResult [Line: 35]: 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] [L57] 2 assume !stoppingFlag; VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L79] 1 stoppingFlag := true; VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=true] [L89] 1 pendingIo := pendingIo - 1; [L90] COND TRUE 1 pendingIo == 0 [L91] 1 stoppingEvent := true; VAL [pendingIo=0, stopped=false, stoppingEvent=true, stoppingFlag=true] [L58] 2 pendingIo := pendingIo + 1; VAL [pendingIo=1, stopped=false, stoppingEvent=true, stoppingFlag=true] [L81] 1 assume stoppingEvent; VAL [pendingIo=1, stopped=false, stoppingEvent=true, stoppingFlag=true] [L82] 1 stopped := true; VAL [pendingIo=1, stopped=true, stoppingEvent=true, stoppingFlag=true] [L35] 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 7 procedures, 44 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 230.3ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 10.8ms, PartialOrderReductionTime: 154.9ms, 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 7 procedures, 44 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 930.9ms, OverallIterations: 4, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1.1ms, PartialOrderReductionTime: 193.8ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 11.1ms SsaConstructionTime, 67.9ms SatisfiabilityAnalysisTime, 265.2ms InterpolantComputationTime, 88 NumberOfCodeBlocks, 88 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 71 ConstructedInterpolants, 0 QuantifiedInterpolants, 280 SizeOfPredicates, 1 NumberOfNonLiveVariables, 44 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 6/16 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...