/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-DelaySleepPersistentFixedOrder-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth07-incorrect.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d310483fe8b4879eee5de19363f50e4b839cc4ec-d310483 [2021-06-24 20:49:08,315 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-24 20:49:08,317 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-24 20:49:08,349 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-24 20:49:08,365 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-24 20:49:08,367 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-24 20:49:08,368 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-24 20:49:08,369 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-24 20:49:08,371 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-24 20:49:08,372 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-24 20:49:08,374 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-24 20:49:08,378 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-24 20:49:08,379 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-24 20:49:08,380 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-24 20:49:08,382 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-24 20:49:08,384 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-24 20:49:08,389 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-24 20:49:08,427 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-24 20:49:08,428 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-24 20:49:08,428 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-24 20:49:08,429 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-DelaySleepPersistentFixedOrder-NoLbe.epf [2021-06-24 20:49:08,451 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-24 20:49:08,451 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-24 20:49:08,452 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-24 20:49:08,452 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-24 20:49:08,454 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-24 20:49:08,454 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-24 20:49:08,454 INFO L138 SettingsManager]: * Use SBE=true [2021-06-24 20:49:08,455 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-24 20:49:08,455 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-24 20:49:08,455 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-24 20:49:08,455 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-24 20:49:08,455 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-24 20:49:08,456 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-24 20:49:08,456 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-24 20:49:08,456 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-24 20:49:08,456 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-24 20:49:08,456 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-24 20:49:08,456 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-24 20:49:08,456 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-24 20:49:08,456 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-24 20:49:08,456 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-24 20:49:08,456 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-24 20:49:08,457 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-24 20:49:08,457 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-24 20:49:08,457 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-24 20:49:08,457 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-24 20:49:08,457 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-24 20:49:08,457 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-24 20:49:08,457 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-24 20:49:08,457 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-24 20:49:08,458 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-24 20:49:08,458 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-24 20:49:08,458 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_DELAY_SET_FIXEDORDER [2021-06-24 20:49:08,458 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-24 20:49:08,717 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-24 20:49:08,739 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-24 20:49:08,741 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-24 20:49:08,741 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-24 20:49:08,751 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-24 20:49:08,752 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth07-incorrect.bpl [2021-06-24 20:49:08,752 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth07-incorrect.bpl' [2021-06-24 20:49:08,773 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-24 20:49:08,774 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-24 20:49:08,781 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-24 20:49:08,781 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-24 20:49:08,781 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-24 20:49:08,790 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "bluetooth07-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 08:49:08" (1/1) ... [2021-06-24 20:49:08,796 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "bluetooth07-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 08:49:08" (1/1) ... [2021-06-24 20:49:08,808 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-24 20:49:08,810 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-24 20:49:08,810 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-24 20:49:08,810 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-24 20:49:08,816 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "bluetooth07-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 08:49:08" (1/1) ... [2021-06-24 20:49:08,816 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "bluetooth07-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 08:49:08" (1/1) ... [2021-06-24 20:49:08,816 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "bluetooth07-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 08:49:08" (1/1) ... [2021-06-24 20:49:08,817 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "bluetooth07-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 08:49:08" (1/1) ... [2021-06-24 20:49:08,819 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "bluetooth07-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 08:49:08" (1/1) ... [2021-06-24 20:49:08,821 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "bluetooth07-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 08:49:08" (1/1) ... [2021-06-24 20:49:08,822 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "bluetooth07-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 08:49:08" (1/1) ... [2021-06-24 20:49:08,822 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-24 20:49:08,824 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-24 20:49:08,824 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-24 20:49:08,824 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-24 20:49:08,826 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "bluetooth07-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 08:49:08" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-24 20:49:08,886 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThread given in one single declaration [2021-06-24 20:49:08,887 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThread [2021-06-24 20:49:08,887 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThread [2021-06-24 20:49:08,887 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ServerThread given in one single declaration [2021-06-24 20:49:08,887 INFO L130 BoogieDeclarations]: Found specification of procedure ServerThread [2021-06-24 20:49:08,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ServerThread [2021-06-24 20:49:08,887 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-24 20:49:08,887 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-24 20:49:08,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-24 20:49:08,888 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-24 20:49:09,111 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-24 20:49:09,112 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-06-24 20:49:09,113 INFO L202 PluginConnector]: Adding new model bluetooth07-incorrect.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 08:49:09 BoogieIcfgContainer [2021-06-24 20:49:09,113 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-24 20:49:09,115 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-24 20:49:09,115 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-24 20:49:09,117 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-24 20:49:09,117 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth07-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 08:49:08" (1/2) ... [2021-06-24 20:49:09,118 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@705a273c and model type bluetooth07-incorrect.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.06 08:49:09, skipping insertion in model container [2021-06-24 20:49:09,118 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth07-incorrect.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 08:49:09" (2/2) ... [2021-06-24 20:49:09,119 INFO L111 eAbstractionObserver]: Analyzing ICFG bluetooth07-incorrect.bpl [2021-06-24 20:49:09,123 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-24 20:49:09,123 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-24 20:49:09,123 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-24 20:49:09,123 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-24 20:49:09,202 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-24 20:49:09,219 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-06-24 20:49:09,287 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-24 20:49:09,288 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-24 20:49:09,288 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-24 20:49:09,288 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-24 20:49:09,288 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-24 20:49:09,288 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-24 20:49:09,288 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-24 20:49:09,288 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == DeviceThreadThread1of1ForFork6======== [2021-06-24 20:49:09,742 INFO L430 AbstractCegarLoop]: === Iteration 1 === [DeviceThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-06-24 20:49:09,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-24 20:49:09,746 INFO L82 PathProgramCache]: Analyzing trace with hash 321283296, now seen corresponding path program 1 times [2021-06-24 20:49:09,753 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-24 20:49:09,753 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620628632] [2021-06-24 20:49:09,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-24 20:49:09,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-24 20:49:09,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-24 20:49:09,840 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-24 20:49:09,840 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620628632] [2021-06-24 20:49:09,841 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620628632] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-24 20:49:09,841 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-24 20:49:09,841 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-24 20:49:09,841 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727732271] [2021-06-24 20:49:09,845 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-24 20:49:09,845 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-24 20:49:09,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-24 20:49:09,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-24 20:49:09,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-24 20:49:09,859 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-24 20:49:09,860 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-24 20:49:09,860 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-24 20:49:10,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 20:49:10,672 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-24 20:49:10,672 INFO L430 AbstractCegarLoop]: === Iteration 2 === [DeviceThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-06-24 20:49:10,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-24 20:49:10,674 INFO L82 PathProgramCache]: Analyzing trace with hash 2096117502, now seen corresponding path program 1 times [2021-06-24 20:49:10,675 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-24 20:49:10,675 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446048221] [2021-06-24 20:49:10,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-24 20:49:10,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-24 20:49:10,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-24 20:49:10,701 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-24 20:49:10,702 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446048221] [2021-06-24 20:49:10,702 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446048221] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-24 20:49:10,702 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-24 20:49:10,702 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-24 20:49:10,702 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544443828] [2021-06-24 20:49:10,703 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-24 20:49:10,703 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-24 20:49:10,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-24 20:49:10,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-24 20:49:10,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-24 20:49:10,704 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-24 20:49:10,704 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-24 20:49:10,704 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-24 20:49:10,704 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-24 20:49:12,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 20:49:12,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 20:49:12,340 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-24 20:49:12,341 INFO L430 AbstractCegarLoop]: === Iteration 3 === [DeviceThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-06-24 20:49:12,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-24 20:49:12,341 INFO L82 PathProgramCache]: Analyzing trace with hash -2041654679, now seen corresponding path program 1 times [2021-06-24 20:49:12,341 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-24 20:49:12,341 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624470387] [2021-06-24 20:49:12,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-24 20:49:12,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-24 20:49:12,560 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 23 proven. 2 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-06-24 20:49:12,560 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-24 20:49:12,560 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624470387] [2021-06-24 20:49:12,561 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624470387] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-24 20:49:12,561 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [177155640] [2021-06-24 20:49:12,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-24 20:49:12,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-24 20:49:12,614 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 42 conjunts are in the unsatisfiable core [2021-06-24 20:49:12,622 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-24 20:49:13,069 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 23 proven. 2 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-06-24 20:49:13,070 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [177155640] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-24 20:49:13,070 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-24 20:49:13,070 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2021-06-24 20:49:13,070 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789884259] [2021-06-24 20:49:13,071 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-24 20:49:13,071 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-24 20:49:13,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-24 20:49:13,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=46, Unknown=0, NotChecked=0, Total=90 [2021-06-24 20:49:13,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-24 20:49:13,072 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-24 20:49:13,072 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 6.5) internal successors, (65), 9 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-24 20:49:13,072 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-24 20:49:13,072 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-24 20:49:13,072 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-24 20:55:29,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 20:55:29,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 20:55:29,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-24 20:55:29,469 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-24 20:55:29,470 INFO L430 AbstractCegarLoop]: === Iteration 4 === [DeviceThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-06-24 20:55:29,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-24 20:55:29,470 INFO L82 PathProgramCache]: Analyzing trace with hash 122821827, now seen corresponding path program 1 times [2021-06-24 20:55:29,471 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-24 20:55:29,471 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941143513] [2021-06-24 20:55:29,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-24 20:55:29,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-24 20:55:29,496 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-24 20:55:29,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-24 20:55:29,531 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-24 20:55:29,549 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-06-24 20:55:29,549 INFO L605 BasicCegarLoop]: Counterexample might be feasible [2021-06-24 20:55:29,549 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-24 20:55:29,557 INFO L301 ceAbstractionStarter]: Result for error location DeviceThreadThread1of1ForFork6 was UNSAFE (1/8) [2021-06-24 20:55:29,559 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-24 20:55:29,585 INFO L202 PluginConnector]: Adding new model bluetooth07-incorrect.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.06 08:55:29 BasicIcfg [2021-06-24 20:55:29,585 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-24 20:55:29,585 INFO L168 Benchmark]: Toolchain (without parser) took 380811.08 ms. Allocated memory was 235.9 MB in the beginning and 7.0 GB in the end (delta: 6.8 GB). Free memory was 216.4 MB in the beginning and 4.7 GB in the end (delta: -4.5 GB). Peak memory consumption was 2.3 GB. Max. memory is 8.0 GB. [2021-06-24 20:55:29,586 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.11 ms. Allocated memory is still 235.9 MB. Free memory is still 217.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-06-24 20:55:29,586 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.51 ms. Allocated memory is still 235.9 MB. Free memory was 216.2 MB in the beginning and 214.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-06-24 20:55:29,589 INFO L168 Benchmark]: Boogie Preprocessor took 13.21 ms. Allocated memory is still 235.9 MB. Free memory was 214.5 MB in the beginning and 213.5 MB in the end (delta: 980.4 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-06-24 20:55:29,589 INFO L168 Benchmark]: RCFGBuilder took 289.62 ms. Allocated memory is still 235.9 MB. Free memory was 213.5 MB in the beginning and 200.7 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-06-24 20:55:29,589 INFO L168 Benchmark]: TraceAbstraction took 380470.39 ms. Allocated memory was 235.9 MB in the beginning and 7.0 GB in the end (delta: 6.8 GB). Free memory was 200.1 MB in the beginning and 4.7 GB in the end (delta: -4.5 GB). Peak memory consumption was 2.3 GB. Max. memory is 8.0 GB. [2021-06-24 20:55:29,590 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 0.11 ms. Allocated memory is still 235.9 MB. Free memory is still 217.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 28.51 ms. Allocated memory is still 235.9 MB. Free memory was 216.2 MB in the beginning and 214.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 13.21 ms. Allocated memory is still 235.9 MB. Free memory was 214.5 MB in the beginning and 213.5 MB in the end (delta: 980.4 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 289.62 ms. Allocated memory is still 235.9 MB. Free memory was 213.5 MB in the beginning and 200.7 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 380470.39 ms. Allocated memory was 235.9 MB in the beginning and 7.0 GB in the end (delta: 6.8 GB). Free memory was 200.1 MB in the beginning and 4.7 GB in the end (delta: -4.5 GB). Peak memory consumption was 2.3 GB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 4353551, positive: 4219973, positive conditional: 4215060, positive unconditional: 4913, negative: 133578, negative conditional: 133380, negative unconditional: 198, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 4244150, positive: 4219973, positive conditional: 4215060, positive unconditional: 4913, negative: 24177, negative conditional: 23979, negative unconditional: 198, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 4244150, positive: 4116751, positive conditional: 0, positive unconditional: 4116751, negative: 127399, negative conditional: 0, negative unconditional: 127399, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3004, positive: 2880, positive conditional: 0, positive unconditional: 2880, negative: 124, negative conditional: 0, negative unconditional: 124, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3004, positive: 2768, positive conditional: 0, positive unconditional: 2768, negative: 236, negative conditional: 0, negative unconditional: 236, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 236, positive: 112, positive conditional: 0, positive unconditional: 112, negative: 124, negative conditional: 0, negative unconditional: 124, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 447, positive: 311, positive conditional: 199, positive unconditional: 112, negative: 136, negative conditional: 12, negative unconditional: 124, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 992, positive: 619, positive conditional: 365, positive unconditional: 254, negative: 373, negative conditional: 24, negative unconditional: 349, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4244150, positive: 4113871, positive conditional: 0, positive unconditional: 4113871, negative: 127275, negative conditional: 0, negative unconditional: 127275, unknown: 3004, unknown conditional: 0, unknown unconditional: 3004] , Statistics on independence cache: Total cache size (in pairs): 3215, Positive cache size: 3079, Positive conditional cache size: 199, Positive unconditional cache size: 2880, Negative cache size: 136, Negative conditional cache size: 12, Negative unconditional cache size: 124, SemanticConditionEliminator.Independence Queries: [ total: 381837, positive: 103222, positive conditional: 103222, positive unconditional: 0, negative: 278615, negative conditional: 6340, negative unconditional: 272275, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 381837, positive: 103222, positive conditional: 103222, positive unconditional: 0, negative: 278615, negative conditional: 6340, negative unconditional: 272275, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 447, positive: 311, positive conditional: 199, positive unconditional: 112, negative: 136, negative conditional: 12, negative unconditional: 124, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 992, positive: 619, positive conditional: 365, positive unconditional: 254, negative: 373, negative conditional: 24, negative unconditional: 349, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 381837, positive: 103023, positive conditional: 103023, positive unconditional: 0, negative: 278603, negative conditional: 6328, negative unconditional: 272275, unknown: 211, unknown conditional: 211, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 3215, Positive cache size: 3079, Positive conditional cache size: 199, Positive unconditional cache size: 2880, Negative cache size: 136, Negative conditional cache size: 12, Negative unconditional cache size: 124, Eliminated conditions: 271934, SemanticConditionEliminator.Independence Queries: [ total: 381837, positive: 103222, positive conditional: 103222, positive unconditional: 0, negative: 278615, negative conditional: 6340, negative unconditional: 272275, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 381837, positive: 103222, positive conditional: 103222, positive unconditional: 0, negative: 278615, negative conditional: 6340, negative unconditional: 272275, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 447, positive: 311, positive conditional: 199, positive unconditional: 112, negative: 136, negative conditional: 12, negative unconditional: 124, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 992, positive: 619, positive conditional: 365, positive unconditional: 254, negative: 373, negative conditional: 24, negative unconditional: 349, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 381837, positive: 103023, positive conditional: 103023, positive unconditional: 0, negative: 278603, negative conditional: 6328, negative unconditional: 272275, unknown: 211, unknown conditional: 211, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 3215, Positive cache size: 3079, Positive conditional cache size: 199, Positive unconditional cache size: 2880, Negative cache size: 136, Negative conditional cache size: 12, Negative unconditional cache size: 124, Eliminated conditions: 271934, SemanticConditionEliminator.Independence Queries: [ total: 381837, positive: 103222, positive conditional: 103222, positive unconditional: 0, negative: 278615, negative conditional: 6340, negative unconditional: 272275, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 381837, positive: 103222, positive conditional: 103222, positive unconditional: 0, negative: 278615, negative conditional: 6340, negative unconditional: 272275, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 447, positive: 311, positive conditional: 199, positive unconditional: 112, negative: 136, negative conditional: 12, negative unconditional: 124, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 992, positive: 619, positive conditional: 365, positive unconditional: 254, negative: 373, negative conditional: 24, negative unconditional: 349, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 381837, positive: 103023, positive conditional: 103023, positive unconditional: 0, negative: 278603, negative conditional: 6328, negative unconditional: 272275, unknown: 211, unknown conditional: 211, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 3215, Positive cache size: 3079, Positive conditional cache size: 199, Positive unconditional cache size: 2880, Negative cache size: 136, Negative conditional cache size: 12, Negative unconditional cache size: 124, Eliminated conditions: 271934 ], Maximal queried relation: 3, Independence queries for same thread: 109401 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 121132, Number of persistent set computation: 1109868, Number of trivial persistent sets: 1036903, Underlying independence relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 4353551, positive: 4219973, positive conditional: 4215060, positive unconditional: 4913, negative: 133578, negative conditional: 133380, negative unconditional: 198, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 4244150, positive: 4219973, positive conditional: 4215060, positive unconditional: 4913, negative: 24177, negative conditional: 23979, negative unconditional: 198, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 4244150, positive: 4116751, positive conditional: 0, positive unconditional: 4116751, negative: 127399, negative conditional: 0, negative unconditional: 127399, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3004, positive: 2880, positive conditional: 0, positive unconditional: 2880, negative: 124, negative conditional: 0, negative unconditional: 124, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3004, positive: 2768, positive conditional: 0, positive unconditional: 2768, negative: 236, negative conditional: 0, negative unconditional: 236, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 236, positive: 112, positive conditional: 0, positive unconditional: 112, negative: 124, negative conditional: 0, negative unconditional: 124, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 447, positive: 311, positive conditional: 199, positive unconditional: 112, negative: 136, negative conditional: 12, negative unconditional: 124, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 992, positive: 619, positive conditional: 365, positive unconditional: 254, negative: 373, negative conditional: 24, negative unconditional: 349, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4244150, positive: 4113871, positive conditional: 0, positive unconditional: 4113871, negative: 127275, negative conditional: 0, negative unconditional: 127275, unknown: 3004, unknown conditional: 0, unknown unconditional: 3004] , Statistics on independence cache: Total cache size (in pairs): 3215, Positive cache size: 3079, Positive conditional cache size: 199, Positive unconditional cache size: 2880, Negative cache size: 136, Negative conditional cache size: 12, Negative unconditional cache size: 124, SemanticConditionEliminator.Independence Queries: [ total: 381837, positive: 103222, positive conditional: 103222, positive unconditional: 0, negative: 278615, negative conditional: 6340, negative unconditional: 272275, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 381837, positive: 103222, positive conditional: 103222, positive unconditional: 0, negative: 278615, negative conditional: 6340, negative unconditional: 272275, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 447, positive: 311, positive conditional: 199, positive unconditional: 112, negative: 136, negative conditional: 12, negative unconditional: 124, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 992, positive: 619, positive conditional: 365, positive unconditional: 254, negative: 373, negative conditional: 24, negative unconditional: 349, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 381837, positive: 103023, positive conditional: 103023, positive unconditional: 0, negative: 278603, negative conditional: 6328, negative unconditional: 272275, unknown: 211, unknown conditional: 211, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 3215, Positive cache size: 3079, Positive conditional cache size: 199, Positive unconditional cache size: 2880, Negative cache size: 136, Negative conditional cache size: 12, Negative unconditional cache size: 124, Eliminated conditions: 271934, SemanticConditionEliminator.Independence Queries: [ total: 381837, positive: 103222, positive conditional: 103222, positive unconditional: 0, negative: 278615, negative conditional: 6340, negative unconditional: 272275, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 381837, positive: 103222, positive conditional: 103222, positive unconditional: 0, negative: 278615, negative conditional: 6340, negative unconditional: 272275, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 447, positive: 311, positive conditional: 199, positive unconditional: 112, negative: 136, negative conditional: 12, negative unconditional: 124, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 992, positive: 619, positive conditional: 365, positive unconditional: 254, negative: 373, negative conditional: 24, negative unconditional: 349, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 381837, positive: 103023, positive conditional: 103023, positive unconditional: 0, negative: 278603, negative conditional: 6328, negative unconditional: 272275, unknown: 211, unknown conditional: 211, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 3215, Positive cache size: 3079, Positive conditional cache size: 199, Positive unconditional cache size: 2880, Negative cache size: 136, Negative conditional cache size: 12, Negative unconditional cache size: 124, Eliminated conditions: 271934, SemanticConditionEliminator.Independence Queries: [ total: 381837, positive: 103222, positive conditional: 103222, positive unconditional: 0, negative: 278615, negative conditional: 6340, negative unconditional: 272275, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 381837, positive: 103222, positive conditional: 103222, positive unconditional: 0, negative: 278615, negative conditional: 6340, negative unconditional: 272275, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 447, positive: 311, positive conditional: 199, positive unconditional: 112, negative: 136, negative conditional: 12, negative unconditional: 124, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 992, positive: 619, positive conditional: 365, positive unconditional: 254, negative: 373, negative conditional: 24, negative unconditional: 349, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 381837, positive: 103023, positive conditional: 103023, positive unconditional: 0, negative: 278603, negative conditional: 6328, negative unconditional: 272275, unknown: 211, unknown conditional: 211, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 3215, Positive cache size: 3079, Positive conditional cache size: 199, Positive unconditional cache size: 2880, Negative cache size: 136, Negative conditional cache size: 12, Negative unconditional cache size: 124, Eliminated conditions: 271934 ], Maximal queried relation: 3, Independence queries for same thread: 109401 - CounterExampleResult [Line: 38]: assertion can be violated assertion can be violated We found a FailurePath: [L13] 0 pendingIo := 1; VAL [pendingIo=1] [L14] 0 stopped := false; VAL [pendingIo=1, stopped=false] [L15] 0 stoppingEvent := false; VAL [pendingIo=1, stopped=false, stoppingEvent=false] [L16] 0 stoppingFlag := false; VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L18] FORK 0 fork 0 ServerThread(); VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L19] FORK 0 fork 1 DeviceThread(); VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L48] 2 assume !stoppingFlag; VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L20] FORK 0 fork 2 DeviceThread(); VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L48] 3 assume !stoppingFlag; VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L21] FORK 0 fork 3 DeviceThread(); VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L48] 4 assume !stoppingFlag; VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L22] FORK 0 fork 4 DeviceThread(); VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L48] 5 assume !stoppingFlag; VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L23] FORK 0 fork 5 DeviceThread(); VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L48] 6 assume !stoppingFlag; VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L24] FORK 0 fork 6 DeviceThread(); VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L48] 7 assume !stoppingFlag; VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L70] 1 stoppingFlag := true; VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=true] [L80] 1 pendingIo := pendingIo - 1; [L81] COND TRUE 1 pendingIo == 0 [L82] 1 stoppingEvent := true; VAL [pendingIo=0, stopped=false, stoppingEvent=true, stoppingFlag=true] [L49] 7 pendingIo := pendingIo + 1; VAL [pendingIo=1, stopped=false, stoppingEvent=true, stoppingFlag=true] [L49] 5 pendingIo := pendingIo + 1; VAL [pendingIo=2, stopped=false, stoppingEvent=true, stoppingFlag=true] [L38] 5 assert !stopped; VAL [pendingIo=2, stopped=false, stoppingEvent=true, stoppingFlag=true] [L57] 5 pendingIo := pendingIo - 1; [L58] COND FALSE 5 !(pendingIo == 0) VAL [pendingIo=1, stopped=false, stoppingEvent=true, stoppingFlag=true] [L49] 6 pendingIo := pendingIo + 1; VAL [pendingIo=2, stopped=false, stoppingEvent=true, stoppingFlag=true] [L38] 6 assert !stopped; VAL [pendingIo=2, stopped=false, stoppingEvent=true, stoppingFlag=true] [L57] 6 pendingIo := pendingIo - 1; [L58] COND FALSE 6 !(pendingIo == 0) VAL [pendingIo=1, stopped=false, stoppingEvent=true, stoppingFlag=true] [L49] 3 pendingIo := pendingIo + 1; VAL [pendingIo=2, stopped=false, stoppingEvent=true, stoppingFlag=true] [L38] 3 assert !stopped; VAL [pendingIo=2, stopped=false, stoppingEvent=true, stoppingFlag=true] [L57] 3 pendingIo := pendingIo - 1; [L58] COND FALSE 3 !(pendingIo == 0) VAL [pendingIo=1, stopped=false, stoppingEvent=true, stoppingFlag=true] [L49] 4 pendingIo := pendingIo + 1; VAL [pendingIo=2, stopped=false, stoppingEvent=true, stoppingFlag=true] [L38] 4 assert !stopped; VAL [pendingIo=2, stopped=false, stoppingEvent=true, stoppingFlag=true] [L57] 4 pendingIo := pendingIo - 1; [L58] COND FALSE 4 !(pendingIo == 0) VAL [pendingIo=1, stopped=false, stoppingEvent=true, stoppingFlag=true] [L49] 2 pendingIo := pendingIo + 1; VAL [pendingIo=2, stopped=false, stoppingEvent=true, stoppingFlag=true] [L38] 2 assert !stopped; VAL [pendingIo=2, stopped=false, stoppingEvent=true, stoppingFlag=true] [L57] 2 pendingIo := pendingIo - 1; [L58] COND FALSE 2 !(pendingIo == 0) VAL [pendingIo=1, stopped=false, stoppingEvent=true, stoppingFlag=true] [L72] 1 assume stoppingEvent; VAL [pendingIo=1, stopped=false, stoppingEvent=true, stoppingFlag=true] [L73] 1 stopped := true; VAL [pendingIo=1, stopped=true, stoppingEvent=true, stoppingFlag=true] [L38] 7 assert !stopped; VAL [pendingIo=1, stopped=true, stoppingEvent=true, stoppingFlag=true] - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: DeviceThreadThread1of1ForFork6 with 1 thread instances CFG has 11 procedures, 82 locations, 16 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 380311.2ms, OverallIterations: 4, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 17.5ms, PartialOrderReductionTime: 379065.3ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 25.7ms SsaConstructionTime, 76.6ms SatisfiabilityAnalysisTime, 686.6ms InterpolantComputationTime, 252 NumberOfCodeBlocks, 252 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 205 ConstructedInterpolants, 0 QuantifiedInterpolants, 892 SizeOfPredicates, 1 NumberOfNonLiveVariables, 123 ConjunctsInSsa, 42 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 68/72 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...