/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/bluetooth10-incorrect.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d310483fe8b4879eee5de19363f50e4b839cc4ec-d310483 [2021-06-24 21:25:34,376 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-24 21:25:34,378 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-24 21:25:34,411 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-24 21:25:34,429 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-24 21:25:34,432 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-24 21:25:34,433 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-24 21:25:34,434 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-24 21:25:34,436 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-24 21:25:34,437 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-24 21:25:34,439 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-24 21:25:34,443 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-24 21:25:34,444 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-24 21:25:34,445 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-24 21:25:34,472 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-24 21:25:34,474 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-24 21:25:34,479 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-24 21:25:34,486 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-24 21:25:34,486 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-24 21:25:34,487 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-24 21:25:34,488 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 21:25:34,517 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-24 21:25:34,518 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-24 21:25:34,518 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-24 21:25:34,518 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-24 21:25:34,520 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-24 21:25:34,521 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-24 21:25:34,521 INFO L138 SettingsManager]: * Use SBE=true [2021-06-24 21:25:34,521 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-24 21:25:34,521 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-24 21:25:34,521 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-24 21:25:34,522 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-24 21:25:34,522 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-24 21:25:34,522 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-24 21:25:34,522 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-24 21:25:34,522 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-24 21:25:34,522 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-24 21:25:34,523 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-24 21:25:34,523 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-24 21:25:34,523 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-24 21:25:34,523 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-24 21:25:34,523 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-24 21:25:34,523 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-24 21:25:34,523 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-24 21:25:34,523 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-24 21:25:34,524 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-24 21:25:34,524 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-24 21:25:34,524 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-24 21:25:34,524 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-24 21:25:34,524 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-06-24 21:25:34,524 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-24 21:25:34,524 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-24 21:25:34,524 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-24 21:25:34,525 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-24 21:25:34,525 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-06-24 21:25:34,525 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-06-24 21:25:34,525 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-24 21:25:34,787 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-24 21:25:34,806 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-24 21:25:34,808 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-24 21:25:34,809 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-24 21:25:34,810 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-24 21:25:34,811 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth10-incorrect.bpl [2021-06-24 21:25:34,811 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth10-incorrect.bpl' [2021-06-24 21:25:34,836 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-24 21:25:34,837 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-24 21:25:34,838 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-24 21:25:34,838 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-24 21:25:34,839 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-24 21:25:34,847 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "bluetooth10-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 09:25:34" (1/1) ... [2021-06-24 21:25:34,854 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "bluetooth10-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 09:25:34" (1/1) ... [2021-06-24 21:25:34,873 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-24 21:25:34,875 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-24 21:25:34,875 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-24 21:25:34,875 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-24 21:25:34,880 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "bluetooth10-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 09:25:34" (1/1) ... [2021-06-24 21:25:34,880 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "bluetooth10-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 09:25:34" (1/1) ... [2021-06-24 21:25:34,881 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "bluetooth10-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 09:25:34" (1/1) ... [2021-06-24 21:25:34,881 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "bluetooth10-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 09:25:34" (1/1) ... [2021-06-24 21:25:34,883 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "bluetooth10-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 09:25:34" (1/1) ... [2021-06-24 21:25:34,887 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "bluetooth10-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 09:25:34" (1/1) ... [2021-06-24 21:25:34,888 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "bluetooth10-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 09:25:34" (1/1) ... [2021-06-24 21:25:34,889 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-24 21:25:34,890 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-24 21:25:34,890 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-24 21:25:34,890 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-24 21:25:34,891 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "bluetooth10-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 09:25:34" (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 21:25:35,059 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThread given in one single declaration [2021-06-24 21:25:35,060 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThread [2021-06-24 21:25:35,060 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThread [2021-06-24 21:25:35,060 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ServerThread given in one single declaration [2021-06-24 21:25:35,060 INFO L130 BoogieDeclarations]: Found specification of procedure ServerThread [2021-06-24 21:25:35,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ServerThread [2021-06-24 21:25:35,060 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-24 21:25:35,060 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-24 21:25:35,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-24 21:25:35,061 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 21:25:35,316 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-24 21:25:35,316 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-06-24 21:25:35,318 INFO L202 PluginConnector]: Adding new model bluetooth10-incorrect.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 09:25:35 BoogieIcfgContainer [2021-06-24 21:25:35,318 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-24 21:25:35,319 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-24 21:25:35,319 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-24 21:25:35,321 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-24 21:25:35,321 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth10-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 09:25:34" (1/2) ... [2021-06-24 21:25:35,322 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53281dd7 and model type bluetooth10-incorrect.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.06 09:25:35, skipping insertion in model container [2021-06-24 21:25:35,322 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth10-incorrect.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 09:25:35" (2/2) ... [2021-06-24 21:25:35,323 INFO L111 eAbstractionObserver]: Analyzing ICFG bluetooth10-incorrect.bpl [2021-06-24 21:25:35,327 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-24 21:25:35,327 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-24 21:25:35,327 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-24 21:25:35,328 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-24 21:25:35,403 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-24 21:25:35,421 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 21:25:35,535 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-24 21:25:35,535 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-24 21:25:35,535 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-24 21:25:35,536 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-24 21:25:35,536 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-24 21:25:35,536 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-24 21:25:35,536 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-24 21:25:35,536 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == DeviceThreadThread1of1ForFork8======== [2021-06-24 21:25:35,950 INFO L430 AbstractCegarLoop]: === Iteration 1 === [DeviceThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-06-24 21:25:35,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-24 21:25:35,954 INFO L82 PathProgramCache]: Analyzing trace with hash -2132405086, now seen corresponding path program 1 times [2021-06-24 21:25:35,960 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-24 21:25:35,960 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550737862] [2021-06-24 21:25:35,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-24 21:25:36,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-24 21:25:36,052 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-24 21:25:36,053 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-24 21:25:36,054 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550737862] [2021-06-24 21:25:36,054 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550737862] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-24 21:25:36,054 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-24 21:25:36,054 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-24 21:25:36,055 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453345802] [2021-06-24 21:25:36,058 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-24 21:25:36,058 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-24 21:25:36,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-24 21:25:36,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-24 21:25:36,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-24 21:25:36,070 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-24 21:25:36,071 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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 21:25:36,072 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-24 21:25:40,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 21:25:40,300 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-24 21:25:40,300 INFO L430 AbstractCegarLoop]: === Iteration 2 === [DeviceThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-06-24 21:25:40,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-24 21:25:40,301 INFO L82 PathProgramCache]: Analyzing trace with hash -2047169708, now seen corresponding path program 1 times [2021-06-24 21:25:40,301 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-24 21:25:40,301 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096560212] [2021-06-24 21:25:40,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-24 21:25:40,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-24 21:25:40,337 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-24 21:25:40,338 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-24 21:25:40,338 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096560212] [2021-06-24 21:25:40,338 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096560212] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-24 21:25:40,338 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-24 21:25:40,338 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-24 21:25:40,338 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881171345] [2021-06-24 21:25:40,339 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-24 21:25:40,339 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-24 21:25:40,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-24 21:25:40,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-24 21:25:40,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-24 21:25:40,340 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-24 21:25:40,340 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 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 21:25:40,340 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-24 21:25:40,340 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-24 21:25:44,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 21:25:44,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 21:25:44,276 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-24 21:25:44,276 INFO L430 AbstractCegarLoop]: === Iteration 3 === [DeviceThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-06-24 21:25:44,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-24 21:25:44,276 INFO L82 PathProgramCache]: Analyzing trace with hash -678270362, now seen corresponding path program 1 times [2021-06-24 21:25:44,276 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-24 21:25:44,277 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620102440] [2021-06-24 21:25:44,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-24 21:25:44,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-24 21:25:44,556 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 22 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-06-24 21:25:44,556 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-24 21:25:44,557 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620102440] [2021-06-24 21:25:44,557 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620102440] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-24 21:25:44,557 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1375994057] [2021-06-24 21:25:44,557 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 21:25:44,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-24 21:25:44,673 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 25 conjunts are in the unsatisfiable core [2021-06-24 21:25:44,678 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-24 21:25:44,993 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 22 proven. 2 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-06-24 21:25:44,994 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1375994057] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-24 21:25:44,994 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-24 21:25:44,994 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2021-06-24 21:25:44,994 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613148665] [2021-06-24 21:25:44,995 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-06-24 21:25:44,995 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-24 21:25:44,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-06-24 21:25:44,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2021-06-24 21:25:44,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-24 21:25:44,996 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-24 21:25:44,996 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 7 states have internal predecessors, (54), 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 21:25:44,996 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-24 21:25:44,996 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-24 21:25:44,996 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-24 21:25:49,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 21:25:49,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 21:25:49,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-24 21:25:49,537 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-24 21:25:49,537 INFO L430 AbstractCegarLoop]: === Iteration 4 === [DeviceThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-06-24 21:25:49,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-24 21:25:49,537 INFO L82 PathProgramCache]: Analyzing trace with hash 1497499988, now seen corresponding path program 1 times [2021-06-24 21:25:49,538 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-24 21:25:49,538 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872713342] [2021-06-24 21:25:49,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-24 21:25:49,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-24 21:25:49,556 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-24 21:25:49,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-24 21:25:49,575 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-24 21:25:49,600 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-06-24 21:25:49,600 INFO L605 BasicCegarLoop]: Counterexample might be feasible [2021-06-24 21:25:49,600 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-24 21:25:49,604 INFO L301 ceAbstractionStarter]: Result for error location DeviceThreadThread1of1ForFork8 was UNSAFE (1/11) [2021-06-24 21:25:49,606 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-24 21:25:49,623 INFO L202 PluginConnector]: Adding new model bluetooth10-incorrect.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.06 09:25:49 BasicIcfg [2021-06-24 21:25:49,623 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-24 21:25:49,624 INFO L168 Benchmark]: Toolchain (without parser) took 14786.56 ms. Allocated memory was 194.0 MB in the beginning and 2.9 GB in the end (delta: 2.7 GB). Free memory was 176.0 MB in the beginning and 1.6 GB in the end (delta: -1.5 GB). Peak memory consumption was 1.2 GB. Max. memory is 8.0 GB. [2021-06-24 21:25:49,624 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.09 ms. Allocated memory is still 194.0 MB. Free memory is still 177.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-06-24 21:25:49,624 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.46 ms. Allocated memory is still 194.0 MB. Free memory was 175.9 MB in the beginning and 174.2 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-06-24 21:25:49,624 INFO L168 Benchmark]: Boogie Preprocessor took 14.20 ms. Allocated memory is still 194.0 MB. Free memory was 174.1 MB in the beginning and 173.2 MB in the end (delta: 839.0 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-06-24 21:25:49,624 INFO L168 Benchmark]: RCFGBuilder took 428.03 ms. Allocated memory is still 194.0 MB. Free memory was 173.1 MB in the beginning and 160.2 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-06-24 21:25:49,625 INFO L168 Benchmark]: TraceAbstraction took 14304.46 ms. Allocated memory was 194.0 MB in the beginning and 2.9 GB in the end (delta: 2.7 GB). Free memory was 159.8 MB in the beginning and 1.6 GB in the end (delta: -1.5 GB). Peak memory consumption was 1.2 GB. Max. memory is 8.0 GB. [2021-06-24 21:25:49,631 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 0.09 ms. Allocated memory is still 194.0 MB. Free memory is still 177.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 35.46 ms. Allocated memory is still 194.0 MB. Free memory was 175.9 MB in the beginning and 174.2 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 14.20 ms. Allocated memory is still 194.0 MB. Free memory was 174.1 MB in the beginning and 173.2 MB in the end (delta: 839.0 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 428.03 ms. Allocated memory is still 194.0 MB. Free memory was 173.1 MB in the beginning and 160.2 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 14304.46 ms. Allocated memory was 194.0 MB in the beginning and 2.9 GB in the end (delta: 2.7 GB). Free memory was 159.8 MB in the beginning and 1.6 GB in the end (delta: -1.5 GB). Peak memory consumption was 1.2 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: 373629, positive: 356840, positive conditional: 351531, positive unconditional: 5309, negative: 16789, negative conditional: 16685, negative unconditional: 104, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 357346, positive: 356840, positive conditional: 351531, positive unconditional: 5309, negative: 506, negative conditional: 402, negative unconditional: 104, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 357346, positive: 356779, positive conditional: 0, positive unconditional: 356779, negative: 567, negative conditional: 0, negative unconditional: 567, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3839, positive: 3757, positive conditional: 0, positive unconditional: 3757, negative: 82, negative conditional: 0, negative unconditional: 82, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3839, positive: 3700, positive conditional: 0, positive unconditional: 3700, negative: 139, negative conditional: 0, negative unconditional: 139, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 139, positive: 57, positive conditional: 0, positive unconditional: 57, negative: 82, negative conditional: 0, negative unconditional: 82, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 175, positive: 78, positive conditional: 21, positive unconditional: 57, negative: 97, negative conditional: 15, negative unconditional: 82, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 373, positive: 147, positive conditional: 33, positive unconditional: 114, negative: 227, negative conditional: 19, negative unconditional: 208, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 357346, positive: 353022, positive conditional: 0, positive unconditional: 353022, negative: 485, negative conditional: 0, negative unconditional: 485, unknown: 3839, unknown conditional: 0, unknown unconditional: 3839] , Statistics on independence cache: Total cache size (in pairs): 3875, Positive cache size: 3778, Positive conditional cache size: 21, Positive unconditional cache size: 3757, Negative cache size: 97, Negative conditional cache size: 15, Negative unconditional cache size: 82, SemanticConditionEliminator.Independence Queries: [ total: 1174, positive: 61, positive conditional: 61, positive unconditional: 0, negative: 1113, negative conditional: 193, negative unconditional: 920, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1174, positive: 61, positive conditional: 61, positive unconditional: 0, negative: 1113, negative conditional: 193, negative unconditional: 920, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 175, positive: 78, positive conditional: 21, positive unconditional: 57, negative: 97, negative conditional: 15, negative unconditional: 82, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 373, positive: 147, positive conditional: 33, positive unconditional: 114, negative: 227, negative conditional: 19, negative unconditional: 208, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1174, positive: 40, positive conditional: 40, positive unconditional: 0, negative: 1098, negative conditional: 178, negative unconditional: 920, unknown: 36, unknown conditional: 36, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 3875, Positive cache size: 3778, Positive conditional cache size: 21, Positive unconditional cache size: 3757, Negative cache size: 97, Negative conditional cache size: 15, Negative unconditional cache size: 82, Eliminated conditions: 824, SemanticConditionEliminator.Independence Queries: [ total: 1174, positive: 61, positive conditional: 61, positive unconditional: 0, negative: 1113, negative conditional: 193, negative unconditional: 920, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1174, positive: 61, positive conditional: 61, positive unconditional: 0, negative: 1113, negative conditional: 193, negative unconditional: 920, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 175, positive: 78, positive conditional: 21, positive unconditional: 57, negative: 97, negative conditional: 15, negative unconditional: 82, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 373, positive: 147, positive conditional: 33, positive unconditional: 114, negative: 227, negative conditional: 19, negative unconditional: 208, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1174, positive: 40, positive conditional: 40, positive unconditional: 0, negative: 1098, negative conditional: 178, negative unconditional: 920, unknown: 36, unknown conditional: 36, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 3875, Positive cache size: 3778, Positive conditional cache size: 21, Positive unconditional cache size: 3757, Negative cache size: 97, Negative conditional cache size: 15, Negative unconditional cache size: 82, Eliminated conditions: 824, SemanticConditionEliminator.Independence Queries: [ total: 1174, positive: 61, positive conditional: 61, positive unconditional: 0, negative: 1113, negative conditional: 193, negative unconditional: 920, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1174, positive: 61, positive conditional: 61, positive unconditional: 0, negative: 1113, negative conditional: 193, negative unconditional: 920, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 175, positive: 78, positive conditional: 21, positive unconditional: 57, negative: 97, negative conditional: 15, negative unconditional: 82, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 373, positive: 147, positive conditional: 33, positive unconditional: 114, negative: 227, negative conditional: 19, negative unconditional: 208, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1174, positive: 40, positive conditional: 40, positive unconditional: 0, negative: 1098, negative conditional: 178, negative unconditional: 920, unknown: 36, unknown conditional: 36, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 3875, Positive cache size: 3778, Positive conditional cache size: 21, Positive unconditional cache size: 3757, Negative cache size: 97, Negative conditional cache size: 15, Negative unconditional cache size: 82, Eliminated conditions: 824 ], Maximal queried relation: 3, Independence queries for same thread: 16283 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 10131, Number of persistent set computation: 72042, Number of trivial persistent sets: 71596, Underlying independence relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 373629, positive: 356840, positive conditional: 351531, positive unconditional: 5309, negative: 16789, negative conditional: 16685, negative unconditional: 104, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 357346, positive: 356840, positive conditional: 351531, positive unconditional: 5309, negative: 506, negative conditional: 402, negative unconditional: 104, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 357346, positive: 356779, positive conditional: 0, positive unconditional: 356779, negative: 567, negative conditional: 0, negative unconditional: 567, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 3839, positive: 3757, positive conditional: 0, positive unconditional: 3757, negative: 82, negative conditional: 0, negative unconditional: 82, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 3839, positive: 3700, positive conditional: 0, positive unconditional: 3700, negative: 139, negative conditional: 0, negative unconditional: 139, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 139, positive: 57, positive conditional: 0, positive unconditional: 57, negative: 82, negative conditional: 0, negative unconditional: 82, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 175, positive: 78, positive conditional: 21, positive unconditional: 57, negative: 97, negative conditional: 15, negative unconditional: 82, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 373, positive: 147, positive conditional: 33, positive unconditional: 114, negative: 227, negative conditional: 19, negative unconditional: 208, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 357346, positive: 353022, positive conditional: 0, positive unconditional: 353022, negative: 485, negative conditional: 0, negative unconditional: 485, unknown: 3839, unknown conditional: 0, unknown unconditional: 3839] , Statistics on independence cache: Total cache size (in pairs): 3875, Positive cache size: 3778, Positive conditional cache size: 21, Positive unconditional cache size: 3757, Negative cache size: 97, Negative conditional cache size: 15, Negative unconditional cache size: 82, SemanticConditionEliminator.Independence Queries: [ total: 1174, positive: 61, positive conditional: 61, positive unconditional: 0, negative: 1113, negative conditional: 193, negative unconditional: 920, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1174, positive: 61, positive conditional: 61, positive unconditional: 0, negative: 1113, negative conditional: 193, negative unconditional: 920, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 175, positive: 78, positive conditional: 21, positive unconditional: 57, negative: 97, negative conditional: 15, negative unconditional: 82, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 373, positive: 147, positive conditional: 33, positive unconditional: 114, negative: 227, negative conditional: 19, negative unconditional: 208, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1174, positive: 40, positive conditional: 40, positive unconditional: 0, negative: 1098, negative conditional: 178, negative unconditional: 920, unknown: 36, unknown conditional: 36, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 3875, Positive cache size: 3778, Positive conditional cache size: 21, Positive unconditional cache size: 3757, Negative cache size: 97, Negative conditional cache size: 15, Negative unconditional cache size: 82, Eliminated conditions: 824, SemanticConditionEliminator.Independence Queries: [ total: 1174, positive: 61, positive conditional: 61, positive unconditional: 0, negative: 1113, negative conditional: 193, negative unconditional: 920, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1174, positive: 61, positive conditional: 61, positive unconditional: 0, negative: 1113, negative conditional: 193, negative unconditional: 920, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 175, positive: 78, positive conditional: 21, positive unconditional: 57, negative: 97, negative conditional: 15, negative unconditional: 82, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 373, positive: 147, positive conditional: 33, positive unconditional: 114, negative: 227, negative conditional: 19, negative unconditional: 208, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1174, positive: 40, positive conditional: 40, positive unconditional: 0, negative: 1098, negative conditional: 178, negative unconditional: 920, unknown: 36, unknown conditional: 36, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 3875, Positive cache size: 3778, Positive conditional cache size: 21, Positive unconditional cache size: 3757, Negative cache size: 97, Negative conditional cache size: 15, Negative unconditional cache size: 82, Eliminated conditions: 824, SemanticConditionEliminator.Independence Queries: [ total: 1174, positive: 61, positive conditional: 61, positive unconditional: 0, negative: 1113, negative conditional: 193, negative unconditional: 920, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1174, positive: 61, positive conditional: 61, positive unconditional: 0, negative: 1113, negative conditional: 193, negative unconditional: 920, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 175, positive: 78, positive conditional: 21, positive unconditional: 57, negative: 97, negative conditional: 15, negative unconditional: 82, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 373, positive: 147, positive conditional: 33, positive unconditional: 114, negative: 227, negative conditional: 19, negative unconditional: 208, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1174, positive: 40, positive conditional: 40, positive unconditional: 0, negative: 1098, negative conditional: 178, negative unconditional: 920, unknown: 36, unknown conditional: 36, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 3875, Positive cache size: 3778, Positive conditional cache size: 21, Positive unconditional cache size: 3757, Negative cache size: 97, Negative conditional cache size: 15, Negative unconditional cache size: 82, Eliminated conditions: 824 ], Maximal queried relation: 3, Independence queries for same thread: 16283 - CounterExampleResult [Line: 41]: 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] [L20] FORK 0 fork 2 DeviceThread(); VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L21] FORK 0 fork 3 DeviceThread(); VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L51] 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] [L52] 4 pendingIo := pendingIo + 1; VAL [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=false] [L41] 4 assert !stopped; VAL [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=false] [L60] 4 pendingIo := pendingIo - 1; [L61] COND FALSE 4 !(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] [L25] FORK 0 fork 7 DeviceThread(); VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L51] 8 assume !stoppingFlag; VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L26] FORK 0 fork 8 DeviceThread(); VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L52] 8 pendingIo := pendingIo + 1; VAL [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=false] [L51] 9 assume !stoppingFlag; VAL [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=false] [L27] FORK 0 fork 9 DeviceThread(); VAL [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=false] [L51] 10 assume !stoppingFlag; VAL [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=false] [L41] 8 assert !stopped; VAL [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=false] [L60] 8 pendingIo := pendingIo - 1; [L61] COND FALSE 8 !(pendingIo == 0) VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L51] 8 assume !stoppingFlag; VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L52] 9 pendingIo := pendingIo + 1; VAL [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=false] [L41] 9 assert !stopped; VAL [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=false] [L52] 8 pendingIo := pendingIo + 1; VAL [pendingIo=3, stopped=false, stoppingEvent=false, stoppingFlag=false] [L52] 10 pendingIo := pendingIo + 1; VAL [pendingIo=4, stopped=false, stoppingEvent=false, stoppingFlag=false] [L41] 10 assert !stopped; VAL [pendingIo=4, stopped=false, stoppingEvent=false, stoppingFlag=false] [L41] 8 assert !stopped; VAL [pendingIo=4, stopped=false, stoppingEvent=false, stoppingFlag=false] [L60] 9 pendingIo := pendingIo - 1; [L61] COND FALSE 9 !(pendingIo == 0) VAL [pendingIo=3, stopped=false, stoppingEvent=false, stoppingFlag=false] [L60] 8 pendingIo := pendingIo - 1; [L61] COND FALSE 8 !(pendingIo == 0) VAL [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=false] [L51] 8 assume !stoppingFlag; VAL [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=false] [L52] 8 pendingIo := pendingIo + 1; VAL [pendingIo=3, stopped=false, stoppingEvent=false, stoppingFlag=false] [L51] 9 assume !stoppingFlag; VAL [pendingIo=3, stopped=false, stoppingEvent=false, stoppingFlag=false] [L41] 8 assert !stopped; VAL [pendingIo=3, stopped=false, stoppingEvent=false, stoppingFlag=false] [L60] 8 pendingIo := pendingIo - 1; [L61] COND FALSE 8 !(pendingIo == 0) VAL [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=false] [L60] 10 pendingIo := pendingIo - 1; [L61] COND FALSE 10 !(pendingIo == 0) VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L51] 8 assume !stoppingFlag; VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L52] 9 pendingIo := pendingIo + 1; VAL [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=false] [L41] 9 assert !stopped; VAL [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=false] [L52] 8 pendingIo := pendingIo + 1; VAL [pendingIo=3, stopped=false, stoppingEvent=false, stoppingFlag=false] [L41] 8 assert !stopped; VAL [pendingIo=3, stopped=false, stoppingEvent=false, stoppingFlag=false] [L60] 9 pendingIo := pendingIo - 1; [L61] COND FALSE 9 !(pendingIo == 0) VAL [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=false] [L60] 8 pendingIo := pendingIo - 1; [L61] COND FALSE 8 !(pendingIo == 0) VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L51] 8 assume !stoppingFlag; VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L52] 8 pendingIo := pendingIo + 1; VAL [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=false] [L51] 9 assume !stoppingFlag; VAL [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=false] [L41] 8 assert !stopped; VAL [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=false] [L60] 8 pendingIo := pendingIo - 1; [L61] COND FALSE 8 !(pendingIo == 0) VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L51] 8 assume !stoppingFlag; VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L52] 9 pendingIo := pendingIo + 1; VAL [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=false] [L41] 9 assert !stopped; VAL [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=false] [L60] 9 pendingIo := pendingIo - 1; [L61] COND FALSE 9 !(pendingIo == 0) VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L28] FORK 0 fork 10 DeviceThread(); VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L51] 11 assume !stoppingFlag; VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L51] 9 assume !stoppingFlag; VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L52] 9 pendingIo := pendingIo + 1; VAL [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=false] [L41] 9 assert !stopped; VAL [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=false] [L60] 9 pendingIo := pendingIo - 1; [L61] COND FALSE 9 !(pendingIo == 0) VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L51] 9 assume !stoppingFlag; VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L52] 11 pendingIo := pendingIo + 1; VAL [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=false] [L73] 1 stoppingFlag := true; VAL [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=true] [L83] 1 pendingIo := pendingIo - 1; [L84] COND FALSE 1 !(pendingIo == 0) VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=true] [L41] 11 assert !stopped; VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=true] [L60] 11 pendingIo := pendingIo - 1; [L61] COND TRUE 11 pendingIo == 0 [L62] 11 stoppingEvent := true; VAL [pendingIo=0, stopped=false, stoppingEvent=true, stoppingFlag=true] [L52] 9 pendingIo := pendingIo + 1; VAL [pendingIo=1, stopped=false, stoppingEvent=true, stoppingFlag=true] [L75] 1 assume stoppingEvent; VAL [pendingIo=1, stopped=false, stoppingEvent=true, stoppingFlag=true] [L76] 1 stopped := true; VAL [pendingIo=1, stopped=true, stoppingEvent=true, stoppingFlag=true] [L41] 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 14 procedures, 106 locations, 22 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 14164.5ms, OverallIterations: 4, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 17.7ms, PartialOrderReductionTime: 12885.7ms, 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: 19.1ms SsaConstructionTime, 95.7ms SatisfiabilityAnalysisTime, 619.0ms InterpolantComputationTime, 267 NumberOfCodeBlocks, 267 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 183 ConstructedInterpolants, 0 QuantifiedInterpolants, 686 SizeOfPredicates, 1 NumberOfNonLiveVariables, 98 ConjunctsInSsa, 25 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 64/68 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...