/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleep-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-incorrect06.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-1c3aa5735269c4be989a50fc1da9ea7b9492ef29-1c3aa57 [2021-07-01 10:46:20,172 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-01 10:46:20,175 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-01 10:46:20,219 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-01 10:46:20,245 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-01 10:46:20,247 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-01 10:46:20,248 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-01 10:46:20,248 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-01 10:46:20,249 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-01 10:46:20,250 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-01 10:46:20,251 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-01 10:46:20,253 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-01 10:46:20,254 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-01 10:46:20,273 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-01 10:46:20,274 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-01 10:46:20,274 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-01 10:46:20,276 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-07-01 10:46:20,285 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleep-NoLbe.epf [2021-07-01 10:46:20,307 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-01 10:46:20,308 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-01 10:46:20,308 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-01 10:46:20,308 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-01 10:46:20,309 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-01 10:46:20,310 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-01 10:46:20,310 INFO L138 SettingsManager]: * Use SBE=true [2021-07-01 10:46:20,310 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-01 10:46:20,310 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-01 10:46:20,310 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-01 10:46:20,310 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-01 10:46:20,311 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-01 10:46:20,311 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-01 10:46:20,311 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-01 10:46:20,311 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-01 10:46:20,311 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-01 10:46:20,311 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-01 10:46:20,311 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-01 10:46:20,312 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-01 10:46:20,312 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-01 10:46:20,312 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-01 10:46:20,312 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-01 10:46:20,312 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-01 10:46:20,312 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-01 10:46:20,312 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-01 10:46:20,313 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-01 10:46:20,313 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-01 10:46:20,313 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-01 10:46:20,313 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-01 10:46:20,313 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-01 10:46:20,313 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-07-01 10:46:20,313 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-01 10:46:20,314 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2021-07-01 10:46:20,314 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-01 10:46:20,612 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-01 10:46:20,627 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-01 10:46:20,630 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-01 10:46:20,631 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-01 10:46:20,634 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-01 10:46:20,635 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-incorrect06.bpl [2021-07-01 10:46:20,635 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-incorrect06.bpl' [2021-07-01 10:46:20,658 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-01 10:46:20,659 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-01 10:46:20,660 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-01 10:46:20,661 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-01 10:46:20,661 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-01 10:46:20,674 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "bluetooth-incorrect06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 10:46:20" (1/1) ... [2021-07-01 10:46:20,679 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "bluetooth-incorrect06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 10:46:20" (1/1) ... [2021-07-01 10:46:20,694 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-01 10:46:20,696 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-01 10:46:20,696 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-01 10:46:20,696 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-01 10:46:20,703 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "bluetooth-incorrect06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 10:46:20" (1/1) ... [2021-07-01 10:46:20,703 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "bluetooth-incorrect06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 10:46:20" (1/1) ... [2021-07-01 10:46:20,704 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "bluetooth-incorrect06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 10:46:20" (1/1) ... [2021-07-01 10:46:20,704 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "bluetooth-incorrect06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 10:46:20" (1/1) ... [2021-07-01 10:46:20,706 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "bluetooth-incorrect06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 10:46:20" (1/1) ... [2021-07-01 10:46:20,708 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "bluetooth-incorrect06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 10:46:20" (1/1) ... [2021-07-01 10:46:20,709 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "bluetooth-incorrect06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 10:46:20" (1/1) ... [2021-07-01 10:46:20,710 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-01 10:46:20,711 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-01 10:46:20,711 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-01 10:46:20,711 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-01 10:46:20,712 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "bluetooth-incorrect06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 10:46:20" (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 10:46:20,779 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThreadWithAssert given in one single declaration [2021-07-01 10:46:20,779 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThreadWithAssert [2021-07-01 10:46:20,779 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThreadWithAssert [2021-07-01 10:46:20,779 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThread given in one single declaration [2021-07-01 10:46:20,779 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThread [2021-07-01 10:46:20,779 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThread [2021-07-01 10:46:20,780 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ServerThread given in one single declaration [2021-07-01 10:46:20,780 INFO L130 BoogieDeclarations]: Found specification of procedure ServerThread [2021-07-01 10:46:20,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ServerThread [2021-07-01 10:46:20,782 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-01 10:46:20,783 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-01 10:46:20,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-01 10:46:20,784 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 10:46:20,997 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-01 10:46:20,997 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-07-01 10:46:20,999 INFO L202 PluginConnector]: Adding new model bluetooth-incorrect06.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 10:46:20 BoogieIcfgContainer [2021-07-01 10:46:20,999 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-01 10:46:21,001 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-01 10:46:21,001 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-01 10:46:21,004 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-01 10:46:21,004 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-incorrect06.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 10:46:20" (1/2) ... [2021-07-01 10:46:21,005 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65fdd0b8 and model type bluetooth-incorrect06.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 10:46:21, skipping insertion in model container [2021-07-01 10:46:21,005 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-incorrect06.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 10:46:20" (2/2) ... [2021-07-01 10:46:21,007 INFO L111 eAbstractionObserver]: Analyzing ICFG bluetooth-incorrect06.bpl [2021-07-01 10:46:21,012 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-01 10:46:21,012 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-01 10:46:21,012 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-01 10:46:21,013 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-01 10:46:21,095 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-07-01 10:46:21,123 INFO L255 AbstractCegarLoop]: Starting to check reachability of 7 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 10:46:21,194 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-01 10:46:21,195 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-01 10:46:21,195 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-01 10:46:21,195 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-01 10:46:21,195 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-01 10:46:21,195 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-01 10:46:21,195 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-01 10:46:21,196 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-01 10:46:24,500 INFO L301 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE (1/2) [2021-07-01 10:46:24,501 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) [2021-07-01 10:46:24,519 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-01 10:46:24,519 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-01 10:46:24,520 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-01 10:46:24,520 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-01 10:46:24,520 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-01 10:46:24,520 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-01 10:46:24,520 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-01 10:46:24,520 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == DeviceThreadWithAssertThread1of1ForFork1======== [2021-07-01 10:46:24,525 INFO L430 AbstractCegarLoop]: === Iteration 1 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 10:46:24,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 10:46:24,532 INFO L82 PathProgramCache]: Analyzing trace with hash -163080637, now seen corresponding path program 1 times Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-07-01 10:46:24,539 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 10:46:24,539 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574541176] [2021-07-01 10:46:24,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 10:46:24,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 10:46:24,647 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 10:46:24,647 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 10:46:24,647 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574541176] [2021-07-01 10:46:24,648 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574541176] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-01 10:46:24,648 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-01 10:46:24,648 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-01 10:46:24,649 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082133074] [2021-07-01 10:46:24,653 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-01 10:46:24,654 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 10:46:24,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-01 10:46:24,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-01 10:46:24,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 10:46:24,666 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 10:46:24,667 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 10:46:24,667 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 10:46:24,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 10:46:24,775 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-01 10:46:24,775 INFO L430 AbstractCegarLoop]: === Iteration 2 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 10:46:24,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 10:46:24,779 INFO L82 PathProgramCache]: Analyzing trace with hash -666974634, now seen corresponding path program 1 times [2021-07-01 10:46:24,779 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 10:46:24,779 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770494124] [2021-07-01 10:46:24,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 10:46:24,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 10:46:24,799 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 10:46:24,800 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 10:46:24,800 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770494124] [2021-07-01 10:46:24,801 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770494124] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-01 10:46:24,801 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-01 10:46:24,802 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-07-01 10:46:24,802 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613751665] [2021-07-01 10:46:24,804 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-01 10:46:24,804 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 10:46:24,805 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-01 10:46:24,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-01 10:46:24,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 10:46:24,806 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 10:46:24,806 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 10:46:24,807 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 10:46:24,807 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 10:46:31,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 10:46:31,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 10:46:31,791 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-01 10:46:31,791 INFO L430 AbstractCegarLoop]: === Iteration 3 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 10:46:31,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 10:46:31,792 INFO L82 PathProgramCache]: Analyzing trace with hash 1475071714, now seen corresponding path program 1 times [2021-07-01 10:46:31,792 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 10:46:31,792 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578962891] [2021-07-01 10:46:31,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 10:46:31,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 10:46:31,869 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-01 10:46:31,870 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 10:46:31,870 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578962891] [2021-07-01 10:46:31,870 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578962891] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-01 10:46:31,870 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-01 10:46:31,870 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-01 10:46:31,870 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895767343] [2021-07-01 10:46:31,871 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-01 10:46:31,871 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 10:46:31,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-01 10:46:31,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2021-07-01 10:46:31,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 10:46:31,872 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 10:46:31,872 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 6 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-01 10:46:31,872 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 10:46:31,872 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 10:46:31,872 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 10:46:39,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 10:46:39,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 10:46:39,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-01 10:46:39,570 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-07-01 10:46:39,571 INFO L430 AbstractCegarLoop]: === Iteration 4 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 10:46:39,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 10:46:39,571 INFO L82 PathProgramCache]: Analyzing trace with hash -1633934474, now seen corresponding path program 1 times [2021-07-01 10:46:39,571 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 10:46:39,572 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [305941099] [2021-07-01 10:46:39,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 10:46:39,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-01 10:46:39,577 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-01 10:46:39,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-01 10:46:39,581 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-01 10:46:39,593 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-01 10:46:39,594 INFO L605 BasicCegarLoop]: Counterexample might be feasible [2021-07-01 10:46:39,594 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-07-01 10:46:39,597 INFO L301 ceAbstractionStarter]: Result for error location DeviceThreadWithAssertThread1of1ForFork1 was UNSAFE (2/2) [2021-07-01 10:46:39,598 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-07-01 10:46:39,614 INFO L202 PluginConnector]: Adding new model bluetooth-incorrect06.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 10:46:39 BasicIcfg [2021-07-01 10:46:39,614 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-01 10:46:39,619 INFO L168 Benchmark]: Toolchain (without parser) took 18956.17 ms. Allocated memory was 255.9 MB in the beginning and 3.1 GB in the end (delta: 2.9 GB). Free memory was 236.8 MB in the beginning and 2.4 GB in the end (delta: -2.1 GB). Peak memory consumption was 709.9 MB. Max. memory is 8.0 GB. [2021-07-01 10:46:39,619 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.17 ms. Allocated memory is still 255.9 MB. Free memory is still 237.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-07-01 10:46:39,620 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.24 ms. Allocated memory is still 255.9 MB. Free memory was 236.7 MB in the beginning and 234.9 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-07-01 10:46:39,620 INFO L168 Benchmark]: Boogie Preprocessor took 14.38 ms. Allocated memory is still 255.9 MB. Free memory was 234.9 MB in the beginning and 234.0 MB in the end (delta: 918.1 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-07-01 10:46:39,621 INFO L168 Benchmark]: RCFGBuilder took 288.79 ms. Allocated memory is still 255.9 MB. Free memory was 233.9 MB in the beginning and 219.4 MB in the end (delta: 14.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2021-07-01 10:46:39,624 INFO L168 Benchmark]: TraceAbstraction took 18613.67 ms. Allocated memory was 255.9 MB in the beginning and 3.1 GB in the end (delta: 2.9 GB). Free memory was 218.9 MB in the beginning and 2.4 GB in the end (delta: -2.2 GB). Peak memory consumption was 692.1 MB. Max. memory is 8.0 GB. [2021-07-01 10:46:39,628 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 255.9 MB. Free memory is still 237.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 34.24 ms. Allocated memory is still 255.9 MB. Free memory was 236.7 MB in the beginning and 234.9 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 14.38 ms. Allocated memory is still 255.9 MB. Free memory was 234.9 MB in the beginning and 234.0 MB in the end (delta: 918.1 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 288.79 ms. Allocated memory is still 255.9 MB. Free memory was 233.9 MB in the beginning and 219.4 MB in the end (delta: 14.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 18613.67 ms. Allocated memory was 255.9 MB in the beginning and 3.1 GB in the end (delta: 2.9 GB). Free memory was 218.9 MB in the beginning and 2.4 GB in the end (delta: -2.2 GB). Peak memory consumption was 692.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 301655, positive: 271804, positive conditional: 271804, positive unconditional: 0, negative: 29851, negative conditional: 29851, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 288664, positive: 271804, positive conditional: 271804, positive unconditional: 0, negative: 16860, negative conditional: 16860, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 288664, positive: 271804, positive conditional: 0, positive unconditional: 271804, negative: 16860, negative conditional: 0, negative unconditional: 16860, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 495, positive: 453, positive conditional: 0, positive unconditional: 453, negative: 42, negative conditional: 0, negative unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 495, positive: 417, positive conditional: 0, positive unconditional: 417, negative: 78, negative conditional: 0, negative unconditional: 78, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 78, positive: 36, positive conditional: 0, positive unconditional: 36, negative: 42, negative conditional: 0, negative unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 78, positive: 36, positive conditional: 0, positive unconditional: 36, negative: 42, negative conditional: 0, negative unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 466, positive: 264, positive conditional: 0, positive unconditional: 264, negative: 201, negative conditional: 0, negative unconditional: 201, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 288664, positive: 271351, positive conditional: 0, positive unconditional: 271351, negative: 16818, negative conditional: 0, negative unconditional: 16818, unknown: 495, unknown conditional: 0, unknown unconditional: 495] , Statistics on independence cache: Total cache size (in pairs): 495, Positive cache size: 453, Positive conditional cache size: 0, Positive unconditional cache size: 453, Negative cache size: 42, Negative conditional cache size: 0, Negative unconditional cache size: 42 ], Maximal queried relation: 0, Independence queries for same thread: 12991 - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1368316, positive: 1285786, positive conditional: 1285786, positive unconditional: 0, negative: 82530, negative conditional: 82530, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 1325231, positive: 1285786, positive conditional: 1285786, positive unconditional: 0, negative: 39445, negative conditional: 39445, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 1325231, positive: 1270600, positive conditional: 0, positive unconditional: 1270600, negative: 54631, negative conditional: 0, negative unconditional: 54631, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 708, positive: 649, positive conditional: 0, positive unconditional: 649, negative: 59, negative conditional: 0, negative unconditional: 59, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 708, positive: 589, positive conditional: 0, positive unconditional: 589, negative: 119, negative conditional: 0, negative unconditional: 119, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 119, positive: 60, positive conditional: 0, positive unconditional: 60, negative: 59, negative conditional: 0, negative unconditional: 59, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 185, positive: 119, positive conditional: 59, positive unconditional: 60, negative: 66, negative conditional: 7, negative unconditional: 59, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 508, positive: 341, positive conditional: 113, positive unconditional: 228, negative: 167, negative conditional: 20, negative unconditional: 147, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1325231, positive: 1269951, positive conditional: 0, positive unconditional: 1269951, negative: 54572, negative conditional: 0, negative unconditional: 54572, unknown: 708, unknown conditional: 0, unknown unconditional: 708] , Statistics on independence cache: Total cache size (in pairs): 774, Positive cache size: 708, Positive conditional cache size: 59, Positive unconditional cache size: 649, Negative cache size: 66, Negative conditional cache size: 7, Negative unconditional cache size: 59, SemanticConditionEliminator.Independence Queries: [ total: 135563, positive: 15186, positive conditional: 15186, positive unconditional: 0, negative: 120377, negative conditional: 955, negative unconditional: 119422, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 135563, positive: 15186, positive conditional: 15186, positive unconditional: 0, negative: 120377, negative conditional: 955, negative unconditional: 119422, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 185, positive: 119, positive conditional: 59, positive unconditional: 60, negative: 66, negative conditional: 7, negative unconditional: 59, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 508, positive: 341, positive conditional: 113, positive unconditional: 228, negative: 167, negative conditional: 20, negative unconditional: 147, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 135563, positive: 15127, positive conditional: 15127, positive unconditional: 0, negative: 120370, negative conditional: 948, negative unconditional: 119422, unknown: 66, unknown conditional: 66, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 774, Positive cache size: 708, Positive conditional cache size: 59, Positive unconditional cache size: 649, Negative cache size: 66, Negative conditional cache size: 7, Negative unconditional cache size: 59, Eliminated conditions: 119422, SemanticConditionEliminator.Independence Queries: [ total: 135563, positive: 15186, positive conditional: 15186, positive unconditional: 0, negative: 120377, negative conditional: 955, negative unconditional: 119422, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 135563, positive: 15186, positive conditional: 15186, positive unconditional: 0, negative: 120377, negative conditional: 955, negative unconditional: 119422, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 185, positive: 119, positive conditional: 59, positive unconditional: 60, negative: 66, negative conditional: 7, negative unconditional: 59, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 508, positive: 341, positive conditional: 113, positive unconditional: 228, negative: 167, negative conditional: 20, negative unconditional: 147, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 135563, positive: 15127, positive conditional: 15127, positive unconditional: 0, negative: 120370, negative conditional: 948, negative unconditional: 119422, unknown: 66, unknown conditional: 66, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 774, Positive cache size: 708, Positive conditional cache size: 59, Positive unconditional cache size: 649, Negative cache size: 66, Negative conditional cache size: 7, Negative unconditional cache size: 59, Eliminated conditions: 119422, SemanticConditionEliminator.Independence Queries: [ total: 135563, positive: 15186, positive conditional: 15186, positive unconditional: 0, negative: 120377, negative conditional: 955, negative unconditional: 119422, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 135563, positive: 15186, positive conditional: 15186, positive unconditional: 0, negative: 120377, negative conditional: 955, negative unconditional: 119422, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 185, positive: 119, positive conditional: 59, positive unconditional: 60, negative: 66, negative conditional: 7, negative unconditional: 59, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 508, positive: 341, positive conditional: 113, positive unconditional: 228, negative: 167, negative conditional: 20, negative unconditional: 147, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 135563, positive: 15127, positive conditional: 15127, positive unconditional: 0, negative: 120370, negative conditional: 948, negative unconditional: 119422, unknown: 66, unknown conditional: 66, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 774, Positive cache size: 708, Positive conditional cache size: 59, Positive unconditional cache size: 649, Negative cache size: 66, Negative conditional cache size: 7, Negative unconditional cache size: 59, Eliminated conditions: 119422 ], Maximal queried relation: 3, Independence queries for same thread: 43085 - CounterExampleResult [Line: 39]: 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] [L61] 2 assume !stoppingFlag; VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L83] 1 stoppingFlag := true; VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=true] [L93] 1 pendingIo := pendingIo - 1; [L94] COND TRUE 1 pendingIo == 0 [L95] 1 stoppingEvent := true; VAL [pendingIo=0, stopped=false, stoppingEvent=true, stoppingFlag=true] [L62] 2 pendingIo := pendingIo + 1; VAL [pendingIo=1, stopped=false, stoppingEvent=true, stoppingFlag=true] [L85] 1 assume stoppingEvent; VAL [pendingIo=1, stopped=false, stoppingEvent=true, stoppingFlag=true] [L86] 1 stopped := true; VAL [pendingIo=1, stopped=true, stoppingEvent=true, stoppingFlag=true] [L39] 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 11 procedures, 68 locations, 9 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3346.4ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 19.4ms, PartialOrderReductionTime: 3263.7ms, 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 11 procedures, 68 locations, 9 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 15089.1ms, OverallIterations: 4, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1.5ms, PartialOrderReductionTime: 14792.3ms, 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: 4.2ms SsaConstructionTime, 33.0ms SatisfiabilityAnalysisTime, 113.7ms InterpolantComputationTime, 59 NumberOfCodeBlocks, 59 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 43 ConstructedInterpolants, 0 QuantifiedInterpolants, 140 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 5/5 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...