/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-NoLbe-Random42.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth08-incorrect.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d310483fe8b4879eee5de19363f50e4b839cc4ec-d310483 [2021-06-24 21:25:32,017 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-24 21:25:32,018 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-24 21:25:32,071 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-24 21:25:32,082 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-24 21:25:32,082 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-24 21:25:32,083 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-24 21:25:32,084 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-24 21:25:32,084 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-24 21:25:32,085 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-24 21:25:32,086 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-24 21:25:32,087 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-24 21:25:32,088 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-24 21:25:32,090 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-24 21:25:32,091 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-24 21:25:32,091 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-24 21:25:32,093 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-24 21:25:32,101 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-NoLbe-Random42.epf [2021-06-24 21:25:32,121 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-24 21:25:32,122 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-24 21:25:32,122 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-24 21:25:32,122 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-24 21:25:32,123 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-24 21:25:32,123 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-24 21:25:32,123 INFO L138 SettingsManager]: * Use SBE=true [2021-06-24 21:25:32,123 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-24 21:25:32,123 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-24 21:25:32,124 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-24 21:25:32,124 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-24 21:25:32,124 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-24 21:25:32,124 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-24 21:25:32,124 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-24 21:25:32,124 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-24 21:25:32,124 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-24 21:25:32,124 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-24 21:25:32,125 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-24 21:25:32,125 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-24 21:25:32,125 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-24 21:25:32,125 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-24 21:25:32,125 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-24 21:25:32,125 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-24 21:25:32,125 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-24 21:25:32,126 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-24 21:25:32,126 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-24 21:25:32,126 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-24 21:25:32,126 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-24 21:25:32,126 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-06-24 21:25:32,126 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-24 21:25:32,126 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-24 21:25:32,126 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-24 21:25:32,127 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-24 21:25:32,127 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-06-24 21:25:32,127 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-06-24 21:25:32,127 INFO L138 SettingsManager]: * Random seed used by POR DFS order=42 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-24 21:25:32,413 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-24 21:25:32,432 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-24 21:25:32,434 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-24 21:25:32,436 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-24 21:25:32,436 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-24 21:25:32,437 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth08-incorrect.bpl [2021-06-24 21:25:32,437 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth08-incorrect.bpl' [2021-06-24 21:25:32,463 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-24 21:25:32,465 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-24 21:25:32,466 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-24 21:25:32,467 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-24 21:25:32,467 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-24 21:25:32,476 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "bluetooth08-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 09:25:32" (1/1) ... [2021-06-24 21:25:32,483 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "bluetooth08-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 09:25:32" (1/1) ... [2021-06-24 21:25:32,495 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-24 21:25:32,496 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-24 21:25:32,496 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-24 21:25:32,496 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-24 21:25:32,502 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "bluetooth08-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 09:25:32" (1/1) ... [2021-06-24 21:25:32,502 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "bluetooth08-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 09:25:32" (1/1) ... [2021-06-24 21:25:32,503 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "bluetooth08-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 09:25:32" (1/1) ... [2021-06-24 21:25:32,503 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "bluetooth08-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 09:25:32" (1/1) ... [2021-06-24 21:25:32,505 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "bluetooth08-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 09:25:32" (1/1) ... [2021-06-24 21:25:32,509 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "bluetooth08-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 09:25:32" (1/1) ... [2021-06-24 21:25:32,509 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "bluetooth08-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 09:25:32" (1/1) ... [2021-06-24 21:25:32,510 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-24 21:25:32,511 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-24 21:25:32,512 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-24 21:25:32,512 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-24 21:25:32,513 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "bluetooth08-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 09:25:32" (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 21:25:32,576 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThread given in one single declaration [2021-06-24 21:25:32,576 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThread [2021-06-24 21:25:32,576 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThread [2021-06-24 21:25:32,577 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ServerThread given in one single declaration [2021-06-24 21:25:32,577 INFO L130 BoogieDeclarations]: Found specification of procedure ServerThread [2021-06-24 21:25:32,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ServerThread [2021-06-24 21:25:32,577 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-24 21:25:32,577 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-24 21:25:32,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-24 21:25:32,578 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 21:25:32,729 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-24 21:25:32,729 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-06-24 21:25:32,731 INFO L202 PluginConnector]: Adding new model bluetooth08-incorrect.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 09:25:32 BoogieIcfgContainer [2021-06-24 21:25:32,731 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-24 21:25:32,732 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-24 21:25:32,732 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-24 21:25:32,734 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-24 21:25:32,734 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth08-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 09:25:32" (1/2) ... [2021-06-24 21:25:32,735 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c7f394 and model type bluetooth08-incorrect.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.06 09:25:32, skipping insertion in model container [2021-06-24 21:25:32,735 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth08-incorrect.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 09:25:32" (2/2) ... [2021-06-24 21:25:32,736 INFO L111 eAbstractionObserver]: Analyzing ICFG bluetooth08-incorrect.bpl [2021-06-24 21:25:32,740 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-24 21:25:32,740 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-24 21:25:32,740 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-24 21:25:32,741 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-24 21:25:32,822 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-24 21:25:32,839 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 21:25:32,885 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-24 21:25:32,885 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-24 21:25:32,885 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-24 21:25:32,885 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-24 21:25:32,885 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-24 21:25:32,886 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-24 21:25:32,886 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-24 21:25:32,894 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == DeviceThreadThread1of1ForFork8======== [2021-06-24 21:25:33,303 INFO L430 AbstractCegarLoop]: === Iteration 1 === [DeviceThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-06-24 21:25:33,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-24 21:25:33,309 INFO L82 PathProgramCache]: Analyzing trace with hash -1370944606, now seen corresponding path program 1 times [2021-06-24 21:25:33,316 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-24 21:25:33,316 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99100221] [2021-06-24 21:25:33,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-24 21:25:33,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-24 21:25:33,412 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 21:25:33,413 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-24 21:25:33,413 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99100221] [2021-06-24 21:25:33,414 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99100221] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-24 21:25:33,414 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-24 21:25:33,414 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-24 21:25:33,414 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157237096] [2021-06-24 21:25:33,417 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-24 21:25:33,417 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-24 21:25:33,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-24 21:25:33,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-24 21:25:33,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-24 21:25:33,432 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-24 21:25:33,433 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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 21:25:33,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-24 21:25:36,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 21:25:36,435 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-24 21:25:36,435 INFO L430 AbstractCegarLoop]: === Iteration 2 === [DeviceThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-06-24 21:25:36,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-24 21:25:36,438 INFO L82 PathProgramCache]: Analyzing trace with hash 123426874, now seen corresponding path program 1 times [2021-06-24 21:25:36,438 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-24 21:25:36,438 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714165184] [2021-06-24 21:25:36,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-24 21:25:36,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-24 21:25:36,457 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 21:25:36,457 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-24 21:25:36,457 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714165184] [2021-06-24 21:25:36,457 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714165184] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-24 21:25:36,458 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-24 21:25:36,458 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-24 21:25:36,458 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184860728] [2021-06-24 21:25:36,459 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-24 21:25:36,459 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-24 21:25:36,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-24 21:25:36,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-24 21:25:36,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-24 21:25:36,461 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-24 21:25:36,462 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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 21:25:36,462 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-24 21:25:36,462 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-24 21:25:40,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 21:25:40,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 21:25:40,085 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-24 21:25:40,086 INFO L430 AbstractCegarLoop]: === Iteration 3 === [DeviceThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-06-24 21:25:40,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-24 21:25:40,086 INFO L82 PathProgramCache]: Analyzing trace with hash -1362981386, now seen corresponding path program 1 times [2021-06-24 21:25:40,086 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-24 21:25:40,086 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496589990] [2021-06-24 21:25:40,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-24 21:25:40,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-24 21:25:40,212 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-24 21:25:40,212 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-24 21:25:40,212 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496589990] [2021-06-24 21:25:40,212 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496589990] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-24 21:25:40,213 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1845524569] [2021-06-24 21:25:40,213 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 21:25:40,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-24 21:25:40,253 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 19 conjunts are in the unsatisfiable core [2021-06-24 21:25:40,257 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-24 21:25:40,491 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-24 21:25:40,491 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1845524569] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-24 21:25:40,491 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-24 21:25:40,491 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2021-06-24 21:25:40,492 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677974188] [2021-06-24 21:25:40,492 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-24 21:25:40,492 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-24 21:25:40,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-24 21:25:40,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-06-24 21:25:40,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-24 21:25:40,493 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-24 21:25:40,493 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 8 states have internal predecessors, (69), 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 21:25:40,493 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-24 21:25:40,493 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-24 21:25:40,493 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-24 21:25:43,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 21:25:43,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 21:25:43,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-24 21:25:43,635 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-24 21:25:43,636 INFO L430 AbstractCegarLoop]: === Iteration 4 === [DeviceThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-06-24 21:25:43,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-24 21:25:43,636 INFO L82 PathProgramCache]: Analyzing trace with hash -46517096, now seen corresponding path program 2 times [2021-06-24 21:25:43,636 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-24 21:25:43,636 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111633986] [2021-06-24 21:25:43,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-24 21:25:43,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-24 21:25:43,644 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-24 21:25:43,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-24 21:25:43,651 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-24 21:25:43,673 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-06-24 21:25:43,673 INFO L605 BasicCegarLoop]: Counterexample might be feasible [2021-06-24 21:25:43,673 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-24 21:25:43,678 INFO L301 ceAbstractionStarter]: Result for error location DeviceThreadThread1of1ForFork8 was UNSAFE (1/9) [2021-06-24 21:25:43,680 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-24 21:25:43,703 INFO L202 PluginConnector]: Adding new model bluetooth08-incorrect.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.06 09:25:43 BasicIcfg [2021-06-24 21:25:43,703 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-24 21:25:43,704 INFO L168 Benchmark]: Toolchain (without parser) took 11238.86 ms. Allocated memory was 189.8 MB in the beginning and 2.4 GB in the end (delta: 2.2 GB). Free memory was 168.3 MB in the beginning and 1.6 GB in the end (delta: -1.5 GB). Peak memory consumption was 719.0 MB. Max. memory is 8.0 GB. [2021-06-24 21:25:43,704 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.12 ms. Allocated memory is still 189.8 MB. Free memory is still 169.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-06-24 21:25:43,704 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.30 ms. Allocated memory is still 189.8 MB. Free memory was 168.3 MB in the beginning and 166.5 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-06-24 21:25:43,704 INFO L168 Benchmark]: Boogie Preprocessor took 14.60 ms. Allocated memory is still 189.8 MB. Free memory was 166.4 MB in the beginning and 165.6 MB in the end (delta: 828.1 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-06-24 21:25:43,705 INFO L168 Benchmark]: RCFGBuilder took 219.41 ms. Allocated memory is still 189.8 MB. Free memory was 165.5 MB in the beginning and 152.8 MB in the end (delta: 12.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-06-24 21:25:43,705 INFO L168 Benchmark]: TraceAbstraction took 10971.00 ms. Allocated memory was 189.8 MB in the beginning and 2.4 GB in the end (delta: 2.2 GB). Free memory was 152.2 MB in the beginning and 1.6 GB in the end (delta: -1.5 GB). Peak memory consumption was 703.3 MB. Max. memory is 8.0 GB. [2021-06-24 21:25:43,706 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.12 ms. Allocated memory is still 189.8 MB. Free memory is still 169.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 29.30 ms. Allocated memory is still 189.8 MB. Free memory was 168.3 MB in the beginning and 166.5 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 14.60 ms. Allocated memory is still 189.8 MB. Free memory was 166.4 MB in the beginning and 165.6 MB in the end (delta: 828.1 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 219.41 ms. Allocated memory is still 189.8 MB. Free memory was 165.5 MB in the beginning and 152.8 MB in the end (delta: 12.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 10971.00 ms. Allocated memory was 189.8 MB in the beginning and 2.4 GB in the end (delta: 2.2 GB). Free memory was 152.2 MB in the beginning and 1.6 GB in the end (delta: -1.5 GB). Peak memory consumption was 703.3 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 260792, positive: 247047, positive conditional: 243550, positive unconditional: 3497, negative: 13745, negative conditional: 13679, negative unconditional: 66, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 247477, positive: 247047, positive conditional: 243550, positive unconditional: 3497, negative: 430, negative conditional: 364, negative unconditional: 66, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 247477, positive: 247009, positive conditional: 0, positive unconditional: 247009, negative: 468, negative conditional: 0, negative unconditional: 468, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2664, positive: 2604, positive conditional: 0, positive unconditional: 2604, negative: 60, negative conditional: 0, negative unconditional: 60, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2664, positive: 2563, positive conditional: 0, positive unconditional: 2563, negative: 101, negative conditional: 0, negative unconditional: 101, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 101, positive: 41, positive conditional: 0, positive unconditional: 41, negative: 60, negative conditional: 0, negative unconditional: 60, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 116, positive: 45, positive conditional: 4, positive unconditional: 41, negative: 71, negative conditional: 11, negative unconditional: 60, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 375, positive: 134, positive conditional: 6, positive unconditional: 128, negative: 242, negative conditional: 14, negative unconditional: 227, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 247477, positive: 244405, positive conditional: 0, positive unconditional: 244405, negative: 408, negative conditional: 0, negative unconditional: 408, unknown: 2664, unknown conditional: 0, unknown unconditional: 2664] , Statistics on independence cache: Total cache size (in pairs): 2679, Positive cache size: 2608, Positive conditional cache size: 4, Positive unconditional cache size: 2604, Negative cache size: 71, Negative conditional cache size: 11, Negative unconditional cache size: 60, SemanticConditionEliminator.Independence Queries: [ total: 993, positive: 38, positive conditional: 38, positive unconditional: 0, negative: 955, negative conditional: 185, negative unconditional: 770, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 993, positive: 38, positive conditional: 38, positive unconditional: 0, negative: 955, negative conditional: 185, negative unconditional: 770, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 116, positive: 45, positive conditional: 4, positive unconditional: 41, negative: 71, negative conditional: 11, negative unconditional: 60, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 375, positive: 134, positive conditional: 6, positive unconditional: 128, negative: 242, negative conditional: 14, negative unconditional: 227, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 993, positive: 34, positive conditional: 34, positive unconditional: 0, negative: 944, negative conditional: 174, negative unconditional: 770, unknown: 15, unknown conditional: 15, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2679, Positive cache size: 2608, Positive conditional cache size: 4, Positive unconditional cache size: 2604, Negative cache size: 71, Negative conditional cache size: 11, Negative unconditional cache size: 60, Eliminated conditions: 726, SemanticConditionEliminator.Independence Queries: [ total: 993, positive: 38, positive conditional: 38, positive unconditional: 0, negative: 955, negative conditional: 185, negative unconditional: 770, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 993, positive: 38, positive conditional: 38, positive unconditional: 0, negative: 955, negative conditional: 185, negative unconditional: 770, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 116, positive: 45, positive conditional: 4, positive unconditional: 41, negative: 71, negative conditional: 11, negative unconditional: 60, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 375, positive: 134, positive conditional: 6, positive unconditional: 128, negative: 242, negative conditional: 14, negative unconditional: 227, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 993, positive: 34, positive conditional: 34, positive unconditional: 0, negative: 944, negative conditional: 174, negative unconditional: 770, unknown: 15, unknown conditional: 15, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2679, Positive cache size: 2608, Positive conditional cache size: 4, Positive unconditional cache size: 2604, Negative cache size: 71, Negative conditional cache size: 11, Negative unconditional cache size: 60, Eliminated conditions: 726, SemanticConditionEliminator.Independence Queries: [ total: 993, positive: 38, positive conditional: 38, positive unconditional: 0, negative: 955, negative conditional: 185, negative unconditional: 770, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 993, positive: 38, positive conditional: 38, positive unconditional: 0, negative: 955, negative conditional: 185, negative unconditional: 770, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 116, positive: 45, positive conditional: 4, positive unconditional: 41, negative: 71, negative conditional: 11, negative unconditional: 60, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 375, positive: 134, positive conditional: 6, positive unconditional: 128, negative: 242, negative conditional: 14, negative unconditional: 227, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 993, positive: 34, positive conditional: 34, positive unconditional: 0, negative: 944, negative conditional: 174, negative unconditional: 770, unknown: 15, unknown conditional: 15, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2679, Positive cache size: 2608, Positive conditional cache size: 4, Positive unconditional cache size: 2604, Negative cache size: 71, Negative conditional cache size: 11, Negative unconditional cache size: 60, Eliminated conditions: 726 ], Maximal queried relation: 3, Independence queries for same thread: 13315 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 7659, Number of persistent set computation: 57457, Number of trivial persistent sets: 57066, Underlying independence relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 260792, positive: 247047, positive conditional: 243550, positive unconditional: 3497, negative: 13745, negative conditional: 13679, negative unconditional: 66, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 247477, positive: 247047, positive conditional: 243550, positive unconditional: 3497, negative: 430, negative conditional: 364, negative unconditional: 66, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 247477, positive: 247009, positive conditional: 0, positive unconditional: 247009, negative: 468, negative conditional: 0, negative unconditional: 468, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2664, positive: 2604, positive conditional: 0, positive unconditional: 2604, negative: 60, negative conditional: 0, negative unconditional: 60, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2664, positive: 2563, positive conditional: 0, positive unconditional: 2563, negative: 101, negative conditional: 0, negative unconditional: 101, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 101, positive: 41, positive conditional: 0, positive unconditional: 41, negative: 60, negative conditional: 0, negative unconditional: 60, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 116, positive: 45, positive conditional: 4, positive unconditional: 41, negative: 71, negative conditional: 11, negative unconditional: 60, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 375, positive: 134, positive conditional: 6, positive unconditional: 128, negative: 242, negative conditional: 14, negative unconditional: 227, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 247477, positive: 244405, positive conditional: 0, positive unconditional: 244405, negative: 408, negative conditional: 0, negative unconditional: 408, unknown: 2664, unknown conditional: 0, unknown unconditional: 2664] , Statistics on independence cache: Total cache size (in pairs): 2679, Positive cache size: 2608, Positive conditional cache size: 4, Positive unconditional cache size: 2604, Negative cache size: 71, Negative conditional cache size: 11, Negative unconditional cache size: 60, SemanticConditionEliminator.Independence Queries: [ total: 993, positive: 38, positive conditional: 38, positive unconditional: 0, negative: 955, negative conditional: 185, negative unconditional: 770, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 993, positive: 38, positive conditional: 38, positive unconditional: 0, negative: 955, negative conditional: 185, negative unconditional: 770, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 116, positive: 45, positive conditional: 4, positive unconditional: 41, negative: 71, negative conditional: 11, negative unconditional: 60, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 375, positive: 134, positive conditional: 6, positive unconditional: 128, negative: 242, negative conditional: 14, negative unconditional: 227, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 993, positive: 34, positive conditional: 34, positive unconditional: 0, negative: 944, negative conditional: 174, negative unconditional: 770, unknown: 15, unknown conditional: 15, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2679, Positive cache size: 2608, Positive conditional cache size: 4, Positive unconditional cache size: 2604, Negative cache size: 71, Negative conditional cache size: 11, Negative unconditional cache size: 60, Eliminated conditions: 726, SemanticConditionEliminator.Independence Queries: [ total: 993, positive: 38, positive conditional: 38, positive unconditional: 0, negative: 955, negative conditional: 185, negative unconditional: 770, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 993, positive: 38, positive conditional: 38, positive unconditional: 0, negative: 955, negative conditional: 185, negative unconditional: 770, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 116, positive: 45, positive conditional: 4, positive unconditional: 41, negative: 71, negative conditional: 11, negative unconditional: 60, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 375, positive: 134, positive conditional: 6, positive unconditional: 128, negative: 242, negative conditional: 14, negative unconditional: 227, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 993, positive: 34, positive conditional: 34, positive unconditional: 0, negative: 944, negative conditional: 174, negative unconditional: 770, unknown: 15, unknown conditional: 15, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2679, Positive cache size: 2608, Positive conditional cache size: 4, Positive unconditional cache size: 2604, Negative cache size: 71, Negative conditional cache size: 11, Negative unconditional cache size: 60, Eliminated conditions: 726, SemanticConditionEliminator.Independence Queries: [ total: 993, positive: 38, positive conditional: 38, positive unconditional: 0, negative: 955, negative conditional: 185, negative unconditional: 770, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 993, positive: 38, positive conditional: 38, positive unconditional: 0, negative: 955, negative conditional: 185, negative unconditional: 770, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 116, positive: 45, positive conditional: 4, positive unconditional: 41, negative: 71, negative conditional: 11, negative unconditional: 60, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 375, positive: 134, positive conditional: 6, positive unconditional: 128, negative: 242, negative conditional: 14, negative unconditional: 227, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 993, positive: 34, positive conditional: 34, positive unconditional: 0, negative: 944, negative conditional: 174, negative unconditional: 770, unknown: 15, unknown conditional: 15, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 2679, Positive cache size: 2608, Positive conditional cache size: 4, Positive unconditional cache size: 2604, Negative cache size: 71, Negative conditional cache size: 11, Negative unconditional cache size: 60, Eliminated conditions: 726 ], Maximal queried relation: 3, Independence queries for same thread: 13315 - CounterExampleResult [Line: 39]: 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] [L49] 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] [L50] 2 pendingIo := pendingIo + 1; VAL [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=false] [L39] 2 assert !stopped; VAL [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=false] [L21] FORK 0 fork 3 DeviceThread(); VAL [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=false] [L22] FORK 0 fork 4 DeviceThread(); VAL [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=false] [L49] 5 assume !stoppingFlag; VAL [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=false] [L58] 2 pendingIo := pendingIo - 1; [L59] COND FALSE 2 !(pendingIo == 0) VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L23] FORK 0 fork 5 DeviceThread(); VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L24] FORK 0 fork 6 DeviceThread(); VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L50] 5 pendingIo := pendingIo + 1; VAL [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=false] [L39] 5 assert !stopped; VAL [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=false] [L58] 5 pendingIo := pendingIo - 1; [L59] COND FALSE 5 !(pendingIo == 0) VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L25] FORK 0 fork 7 DeviceThread(); VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L26] FORK 0 fork 8 DeviceThread(); VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L49] 9 assume !stoppingFlag; VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L71] 1 stoppingFlag := true; VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=true] [L81] 1 pendingIo := pendingIo - 1; [L82] COND TRUE 1 pendingIo == 0 [L83] 1 stoppingEvent := true; VAL [pendingIo=0, stopped=false, stoppingEvent=true, stoppingFlag=true] [L50] 9 pendingIo := pendingIo + 1; VAL [pendingIo=1, stopped=false, stoppingEvent=true, stoppingFlag=true] [L73] 1 assume stoppingEvent; VAL [pendingIo=1, stopped=false, stoppingEvent=true, stoppingFlag=true] [L74] 1 stopped := true; VAL [pendingIo=1, stopped=true, stoppingEvent=true, stoppingFlag=true] [L39] 9 assert !stopped; VAL [pendingIo=1, stopped=true, stoppingEvent=true, stoppingFlag=true] - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: DeviceThreadThread1of1ForFork8 with 1 thread instances CFG has 12 procedures, 90 locations, 18 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 10827.6ms, OverallIterations: 4, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 18.1ms, PartialOrderReductionTime: 9939.6ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 13, 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: 12.1ms SsaConstructionTime, 41.9ms SatisfiabilityAnalysisTime, 390.8ms InterpolantComputationTime, 165 NumberOfCodeBlocks, 165 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 125 ConstructedInterpolants, 0 QuantifiedInterpolants, 444 SizeOfPredicates, 1 NumberOfNonLiveVariables, 57 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 2/4 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...