/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-DelaySleep-NoLbe-Random521.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 19:22:37,490 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-24 19:22:37,492 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-24 19:22:37,522 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-24 19:22:37,538 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-24 19:22:37,539 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-24 19:22:37,540 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-24 19:22:37,541 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-24 19:22:37,543 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-24 19:22:37,544 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-24 19:22:37,546 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-24 19:22:37,550 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-24 19:22:37,551 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-24 19:22:37,553 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-24 19:22:37,554 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-24 19:22:37,555 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-24 19:22:37,560 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-24 19:22:37,570 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-DelaySleep-NoLbe-Random521.epf [2021-06-24 19:22:37,599 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-24 19:22:37,600 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-24 19:22:37,600 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-24 19:22:37,600 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-24 19:22:37,602 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-24 19:22:37,602 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-24 19:22:37,603 INFO L138 SettingsManager]: * Use SBE=true [2021-06-24 19:22:37,603 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-24 19:22:37,603 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-24 19:22:37,603 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-24 19:22:37,604 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-24 19:22:37,604 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-24 19:22:37,604 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-24 19:22:37,604 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-24 19:22:37,604 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-24 19:22:37,604 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-24 19:22:37,604 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-24 19:22:37,605 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-24 19:22:37,605 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-24 19:22:37,605 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-24 19:22:37,605 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-24 19:22:37,605 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-24 19:22:37,605 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-24 19:22:37,605 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-24 19:22:37,605 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-24 19:22:37,606 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-24 19:22:37,606 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-24 19:22:37,606 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-24 19:22:37,606 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-06-24 19:22:37,606 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-24 19:22:37,606 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-24 19:22:37,606 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-24 19:22:37,607 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-24 19:22:37,607 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-06-24 19:22:37,615 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-06-24 19:22:37,615 INFO L138 SettingsManager]: * Random seed used by POR DFS order=521 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-24 19:22:37,886 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-24 19:22:37,902 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-24 19:22:37,904 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-24 19:22:37,905 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-24 19:22:37,909 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-24 19:22:37,910 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth10-incorrect.bpl [2021-06-24 19:22:37,910 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth10-incorrect.bpl' [2021-06-24 19:22:37,937 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-24 19:22:37,939 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-24 19:22:37,941 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-24 19:22:37,941 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-24 19:22:37,941 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-24 19:22:37,951 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 07:22:37" (1/1) ... [2021-06-24 19:22:37,958 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 07:22:37" (1/1) ... [2021-06-24 19:22:37,970 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-24 19:22:37,972 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-24 19:22:37,972 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-24 19:22:37,972 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-24 19:22:37,977 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 07:22:37" (1/1) ... [2021-06-24 19:22:37,978 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 07:22:37" (1/1) ... [2021-06-24 19:22:37,979 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 07:22:37" (1/1) ... [2021-06-24 19:22:37,979 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 07:22:37" (1/1) ... [2021-06-24 19:22:37,981 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 07:22:37" (1/1) ... [2021-06-24 19:22:37,984 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 07:22:37" (1/1) ... [2021-06-24 19:22:37,985 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 07:22:37" (1/1) ... [2021-06-24 19:22:37,986 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-24 19:22:37,987 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-24 19:22:37,987 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-24 19:22:37,987 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-24 19:22:37,988 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "bluetooth10-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 07:22:37" (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 19:22:38,111 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThread given in one single declaration [2021-06-24 19:22:38,111 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThread [2021-06-24 19:22:38,111 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThread [2021-06-24 19:22:38,111 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ServerThread given in one single declaration [2021-06-24 19:22:38,112 INFO L130 BoogieDeclarations]: Found specification of procedure ServerThread [2021-06-24 19:22:38,112 INFO L138 BoogieDeclarations]: Found implementation of procedure ServerThread [2021-06-24 19:22:38,113 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-24 19:22:38,113 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-24 19:22:38,113 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-24 19:22:38,113 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 19:22:38,345 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-24 19:22:38,345 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-06-24 19:22:38,347 INFO L202 PluginConnector]: Adding new model bluetooth10-incorrect.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 07:22:38 BoogieIcfgContainer [2021-06-24 19:22:38,347 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-24 19:22:38,348 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-24 19:22:38,348 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-24 19:22:38,350 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-24 19:22:38,350 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth10-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 07:22:37" (1/2) ... [2021-06-24 19:22:38,351 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15b5fe85 and model type bluetooth10-incorrect.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.06 07:22:38, skipping insertion in model container [2021-06-24 19:22:38,351 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 07:22:38" (2/2) ... [2021-06-24 19:22:38,352 INFO L111 eAbstractionObserver]: Analyzing ICFG bluetooth10-incorrect.bpl [2021-06-24 19:22:38,356 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-24 19:22:38,356 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-24 19:22:38,356 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-24 19:22:38,357 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-24 19:22:38,441 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-24 19:22:38,458 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 19:22:38,508 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-24 19:22:38,508 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-24 19:22:38,508 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-24 19:22:38,508 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-24 19:22:38,509 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-24 19:22:38,509 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-24 19:22:38,509 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-24 19:22:38,509 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == DeviceThreadThread1of1ForFork8======== [2021-06-24 19:22:38,685 INFO L430 AbstractCegarLoop]: === Iteration 1 === [DeviceThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-06-24 19:22:38,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-24 19:22:38,690 INFO L82 PathProgramCache]: Analyzing trace with hash -1373720930, now seen corresponding path program 1 times [2021-06-24 19:22:38,697 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-24 19:22:38,697 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723421025] [2021-06-24 19:22:38,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-24 19:22:38,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-24 19:22:38,799 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-06-24 19:22:38,799 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-24 19:22:38,800 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723421025] [2021-06-24 19:22:38,800 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1723421025] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-24 19:22:38,800 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-24 19:22:38,801 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-24 19:22:38,801 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694501175] [2021-06-24 19:22:38,804 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-24 19:22:38,804 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-24 19:22:38,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-24 19:22:38,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-24 19:22:38,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-24 19:22:38,821 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-24 19:22:38,825 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 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 19:22:38,825 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-24 19:22:44,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 19:22:44,177 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-24 19:22:44,177 INFO L430 AbstractCegarLoop]: === Iteration 2 === [DeviceThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-06-24 19:22:44,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-24 19:22:44,177 INFO L82 PathProgramCache]: Analyzing trace with hash -1876435980, now seen corresponding path program 1 times [2021-06-24 19:22:44,177 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-24 19:22:44,178 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885058645] [2021-06-24 19:22:44,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-24 19:22:44,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-24 19:22:44,202 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-06-24 19:22:44,202 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-24 19:22:44,202 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885058645] [2021-06-24 19:22:44,202 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885058645] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-24 19:22:44,202 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-24 19:22:44,202 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-24 19:22:44,203 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090787559] [2021-06-24 19:22:44,203 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-24 19:22:44,204 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-24 19:22:44,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-24 19:22:44,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-24 19:22:44,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-24 19:22:44,204 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-24 19:22:44,204 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 19:22:44,204 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-24 19:22:44,205 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-24 19:22:50,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 19:22:50,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 19:22:50,845 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-24 19:22:50,846 INFO L430 AbstractCegarLoop]: === Iteration 3 === [DeviceThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-06-24 19:22:50,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-24 19:22:50,846 INFO L82 PathProgramCache]: Analyzing trace with hash -1178231558, now seen corresponding path program 1 times [2021-06-24 19:22:50,846 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-24 19:22:50,846 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267601982] [2021-06-24 19:22:50,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-24 19:22:50,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-24 19:22:50,992 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 8 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-06-24 19:22:50,992 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-24 19:22:50,992 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267601982] [2021-06-24 19:22:50,993 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267601982] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-24 19:22:50,993 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1197810977] [2021-06-24 19:22:50,993 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 19:22:51,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-24 19:22:51,050 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 27 conjunts are in the unsatisfiable core [2021-06-24 19:22:51,054 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-24 19:22:51,444 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 8 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-06-24 19:22:51,445 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1197810977] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-24 19:22:51,445 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-24 19:22:51,445 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2021-06-24 19:22:51,445 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101926097] [2021-06-24 19:22:51,445 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-24 19:22:51,445 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-24 19:22:51,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-24 19:22:51,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=46, Unknown=0, NotChecked=0, Total=90 [2021-06-24 19:22:51,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-24 19:22:51,446 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-24 19:22:51,446 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 5.8) internal successors, (58), 9 states have internal predecessors, (58), 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 19:22:51,446 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-24 19:22:51,446 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-24 19:22:51,447 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-24 19:22:54,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 19:22:54,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 19:22:54,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-24 19:22:54,437 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-24 19:22:54,438 INFO L430 AbstractCegarLoop]: === Iteration 4 === [DeviceThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-06-24 19:22:54,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-24 19:22:54,438 INFO L82 PathProgramCache]: Analyzing trace with hash -67417377, now seen corresponding path program 1 times [2021-06-24 19:22:54,438 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-24 19:22:54,438 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78137024] [2021-06-24 19:22:54,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-24 19:22:54,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-24 19:22:54,637 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 19 proven. 24 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-06-24 19:22:54,638 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-24 19:22:54,638 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78137024] [2021-06-24 19:22:54,638 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78137024] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-24 19:22:54,638 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1232772285] [2021-06-24 19:22:54,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-24 19:22:54,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-24 19:22:54,678 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 42 conjunts are in the unsatisfiable core [2021-06-24 19:22:54,680 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-24 19:22:54,872 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 19 proven. 24 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-06-24 19:22:54,872 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1232772285] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-24 19:22:54,873 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-24 19:22:54,873 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 10 [2021-06-24 19:22:54,873 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113568225] [2021-06-24 19:22:54,873 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-24 19:22:54,873 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-24 19:22:54,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-24 19:22:54,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=56, Unknown=0, NotChecked=0, Total=110 [2021-06-24 19:22:54,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-24 19:22:54,874 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-24 19:22:54,874 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 6.909090909090909) internal successors, (76), 10 states have internal predecessors, (76), 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 19:22:54,874 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-24 19:22:54,874 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-24 19:22:54,874 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-24 19:22:54,875 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-24 19:22:58,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 19:22:58,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 19:22:58,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-24 19:22:58,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-24 19:22:58,985 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-24 19:22:58,985 INFO L430 AbstractCegarLoop]: === Iteration 5 === [DeviceThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-06-24 19:22:58,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-24 19:22:58,986 INFO L82 PathProgramCache]: Analyzing trace with hash -248885109, now seen corresponding path program 1 times [2021-06-24 19:22:58,986 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-24 19:22:58,986 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889332793] [2021-06-24 19:22:58,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-24 19:22:59,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-24 19:22:59,144 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 25 proven. 36 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-06-24 19:22:59,144 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-24 19:22:59,144 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889332793] [2021-06-24 19:22:59,144 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889332793] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-24 19:22:59,144 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [581064241] [2021-06-24 19:22:59,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-24 19:22:59,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-24 19:22:59,186 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 54 conjunts are in the unsatisfiable core [2021-06-24 19:22:59,188 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-24 19:22:59,425 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 25 proven. 36 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-06-24 19:22:59,425 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [581064241] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-24 19:22:59,426 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-24 19:22:59,426 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 11 [2021-06-24 19:22:59,426 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771375976] [2021-06-24 19:22:59,426 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-24 19:22:59,426 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-24 19:22:59,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-24 19:22:59,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=67, Unknown=0, NotChecked=0, Total=132 [2021-06-24 19:22:59,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-24 19:22:59,427 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-24 19:22:59,427 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 6.75) internal successors, (81), 11 states have internal predecessors, (81), 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 19:22:59,427 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-24 19:22:59,427 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-24 19:22:59,427 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-06-24 19:22:59,427 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-06-24 19:22:59,428 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-24 19:23:16,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 19:23:16,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 19:23:16,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-24 19:23:16,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-24 19:23:16,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-06-24 19:23:17,018 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-24 19:23:17,018 INFO L430 AbstractCegarLoop]: === Iteration 6 === [DeviceThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-06-24 19:23:17,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-24 19:23:17,019 INFO L82 PathProgramCache]: Analyzing trace with hash 863078644, now seen corresponding path program 1 times [2021-06-24 19:23:17,019 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-24 19:23:17,019 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153873548] [2021-06-24 19:23:17,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-24 19:23:17,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-24 19:23:17,047 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-24 19:23:17,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-24 19:23:17,066 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-24 19:23:17,085 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-06-24 19:23:17,085 INFO L605 BasicCegarLoop]: Counterexample might be feasible [2021-06-24 19:23:17,086 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-24 19:23:17,089 INFO L301 ceAbstractionStarter]: Result for error location DeviceThreadThread1of1ForFork8 was UNSAFE (1/11) [2021-06-24 19:23:17,090 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-24 19:23:17,109 INFO L202 PluginConnector]: Adding new model bluetooth10-incorrect.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.06 07:23:17 BasicIcfg [2021-06-24 19:23:17,109 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-24 19:23:17,109 INFO L168 Benchmark]: Toolchain (without parser) took 39170.18 ms. Allocated memory was 186.6 MB in the beginning and 3.4 GB in the end (delta: 3.2 GB). Free memory was 166.7 MB in the beginning and 2.2 GB in the end (delta: -2.0 GB). Peak memory consumption was 1.1 GB. Max. memory is 8.0 GB. [2021-06-24 19:23:17,109 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.15 ms. Allocated memory is still 186.6 MB. Free memory is still 167.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-06-24 19:23:17,109 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.92 ms. Allocated memory is still 186.6 MB. Free memory was 166.6 MB in the beginning and 164.8 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-06-24 19:23:17,110 INFO L168 Benchmark]: Boogie Preprocessor took 14.37 ms. Allocated memory is still 186.6 MB. Free memory was 164.8 MB in the beginning and 163.8 MB in the end (delta: 949.7 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-06-24 19:23:17,110 INFO L168 Benchmark]: RCFGBuilder took 359.86 ms. Allocated memory is still 186.6 MB. Free memory was 163.8 MB in the beginning and 150.9 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-06-24 19:23:17,110 INFO L168 Benchmark]: TraceAbstraction took 38761.00 ms. Allocated memory was 186.6 MB in the beginning and 3.4 GB in the end (delta: 3.2 GB). Free memory was 150.4 MB in the beginning and 2.2 GB in the end (delta: -2.0 GB). Peak memory consumption was 1.1 GB. Max. memory is 8.0 GB. [2021-06-24 19:23:17,110 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 0.15 ms. Allocated memory is still 186.6 MB. Free memory is still 167.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 29.92 ms. Allocated memory is still 186.6 MB. Free memory was 166.6 MB in the beginning and 164.8 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 14.37 ms. Allocated memory is still 186.6 MB. Free memory was 164.8 MB in the beginning and 163.8 MB in the end (delta: 949.7 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 359.86 ms. Allocated memory is still 186.6 MB. Free memory was 163.8 MB in the beginning and 150.9 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 38761.00 ms. Allocated memory was 186.6 MB in the beginning and 3.4 GB in the end (delta: 3.2 GB). Free memory was 150.4 MB in the beginning and 2.2 GB in the end (delta: -2.0 GB). Peak memory consumption was 1.1 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: 3036382, positive: 2882822, positive conditional: 2882822, positive unconditional: 0, negative: 153560, negative conditional: 153560, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 2895332, positive: 2882822, positive conditional: 2882822, positive unconditional: 0, negative: 12510, negative conditional: 12510, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 2895332, positive: 2790246, positive conditional: 0, positive unconditional: 2790246, negative: 105086, negative conditional: 0, negative unconditional: 105086, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2422, positive: 2292, positive conditional: 0, positive unconditional: 2292, negative: 130, negative conditional: 0, negative unconditional: 130, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2422, positive: 2170, positive conditional: 0, positive unconditional: 2170, negative: 252, negative conditional: 0, negative unconditional: 252, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 252, positive: 122, positive conditional: 0, positive unconditional: 122, negative: 130, negative conditional: 0, negative unconditional: 130, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 978, positive: 722, positive conditional: 600, positive unconditional: 122, negative: 256, negative conditional: 126, negative unconditional: 130, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1372, positive: 995, positive conditional: 699, positive unconditional: 296, negative: 377, negative conditional: 132, negative unconditional: 245, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2895332, positive: 2787954, positive conditional: 0, positive unconditional: 2787954, negative: 104956, negative conditional: 0, negative unconditional: 104956, unknown: 2422, unknown conditional: 0, unknown unconditional: 2422] , Statistics on independence cache: Total cache size (in pairs): 3148, Positive cache size: 2892, Positive conditional cache size: 600, Positive unconditional cache size: 2292, Negative cache size: 256, Negative conditional cache size: 126, Negative unconditional cache size: 130, SemanticConditionEliminator.Independence Queries: [ total: 329212, positive: 92576, positive conditional: 92576, positive unconditional: 0, negative: 236636, negative conditional: 5549, negative unconditional: 231087, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 329212, positive: 92576, positive conditional: 92576, positive unconditional: 0, negative: 236636, negative conditional: 5549, negative unconditional: 231087, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 978, positive: 722, positive conditional: 600, positive unconditional: 122, negative: 256, negative conditional: 126, negative unconditional: 130, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1372, positive: 995, positive conditional: 699, positive unconditional: 296, negative: 377, negative conditional: 132, negative unconditional: 245, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 329212, positive: 91976, positive conditional: 91976, positive unconditional: 0, negative: 236510, negative conditional: 5423, negative unconditional: 231087, unknown: 726, unknown conditional: 726, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 3148, Positive cache size: 2892, Positive conditional cache size: 600, Positive unconditional cache size: 2292, Negative cache size: 256, Negative conditional cache size: 126, Negative unconditional cache size: 130, Eliminated conditions: 231087, SemanticConditionEliminator.Independence Queries: [ total: 329212, positive: 92576, positive conditional: 92576, positive unconditional: 0, negative: 236636, negative conditional: 5549, negative unconditional: 231087, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 329212, positive: 92576, positive conditional: 92576, positive unconditional: 0, negative: 236636, negative conditional: 5549, negative unconditional: 231087, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 978, positive: 722, positive conditional: 600, positive unconditional: 122, negative: 256, negative conditional: 126, negative unconditional: 130, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1372, positive: 995, positive conditional: 699, positive unconditional: 296, negative: 377, negative conditional: 132, negative unconditional: 245, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 329212, positive: 91976, positive conditional: 91976, positive unconditional: 0, negative: 236510, negative conditional: 5423, negative unconditional: 231087, unknown: 726, unknown conditional: 726, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 3148, Positive cache size: 2892, Positive conditional cache size: 600, Positive unconditional cache size: 2292, Negative cache size: 256, Negative conditional cache size: 126, Negative unconditional cache size: 130, Eliminated conditions: 231087, SemanticConditionEliminator.Independence Queries: [ total: 329212, positive: 92576, positive conditional: 92576, positive unconditional: 0, negative: 236636, negative conditional: 5549, negative unconditional: 231087, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 329212, positive: 92576, positive conditional: 92576, positive unconditional: 0, negative: 236636, negative conditional: 5549, negative unconditional: 231087, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 978, positive: 722, positive conditional: 600, positive unconditional: 122, negative: 256, negative conditional: 126, negative unconditional: 130, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1372, positive: 995, positive conditional: 699, positive unconditional: 296, negative: 377, negative conditional: 132, negative unconditional: 245, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 329212, positive: 91976, positive conditional: 91976, positive unconditional: 0, negative: 236510, negative conditional: 5423, negative unconditional: 231087, unknown: 726, unknown conditional: 726, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 3148, Positive cache size: 2892, Positive conditional cache size: 600, Positive unconditional cache size: 2292, Negative cache size: 256, Negative conditional cache size: 126, Negative unconditional cache size: 130, Eliminated conditions: 231087, SemanticConditionEliminator.Independence Queries: [ total: 329212, positive: 92576, positive conditional: 92576, positive unconditional: 0, negative: 236636, negative conditional: 5549, negative unconditional: 231087, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 329212, positive: 92576, positive conditional: 92576, positive unconditional: 0, negative: 236636, negative conditional: 5549, negative unconditional: 231087, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 978, positive: 722, positive conditional: 600, positive unconditional: 122, negative: 256, negative conditional: 126, negative unconditional: 130, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1372, positive: 995, positive conditional: 699, positive unconditional: 296, negative: 377, negative conditional: 132, negative unconditional: 245, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 329212, positive: 91976, positive conditional: 91976, positive unconditional: 0, negative: 236510, negative conditional: 5423, negative unconditional: 231087, unknown: 726, unknown conditional: 726, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 3148, Positive cache size: 2892, Positive conditional cache size: 600, Positive unconditional cache size: 2292, Negative cache size: 256, Negative conditional cache size: 126, Negative unconditional cache size: 130, Eliminated conditions: 231087, SemanticConditionEliminator.Independence Queries: [ total: 329212, positive: 92576, positive conditional: 92576, positive unconditional: 0, negative: 236636, negative conditional: 5549, negative unconditional: 231087, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 329212, positive: 92576, positive conditional: 92576, positive unconditional: 0, negative: 236636, negative conditional: 5549, negative unconditional: 231087, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 978, positive: 722, positive conditional: 600, positive unconditional: 122, negative: 256, negative conditional: 126, negative unconditional: 130, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1372, positive: 995, positive conditional: 699, positive unconditional: 296, negative: 377, negative conditional: 132, negative unconditional: 245, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 329212, positive: 91976, positive conditional: 91976, positive unconditional: 0, negative: 236510, negative conditional: 5423, negative unconditional: 231087, unknown: 726, unknown conditional: 726, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 3148, Positive cache size: 2892, Positive conditional cache size: 600, Positive unconditional cache size: 2292, Negative cache size: 256, Negative conditional cache size: 126, Negative unconditional cache size: 130, Eliminated conditions: 231087 ], Maximal queried relation: 5, Independence queries for same thread: 141050 - 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] [L51] 3 assume !stoppingFlag; VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L21] FORK 0 fork 3 DeviceThread(); VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L52] 3 pendingIo := pendingIo + 1; VAL [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=false] [L22] FORK 0 fork 4 DeviceThread(); VAL [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=false] [L51] 5 assume !stoppingFlag; VAL [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=false] [L52] 5 pendingIo := pendingIo + 1; VAL [pendingIo=3, stopped=false, stoppingEvent=false, stoppingFlag=false] [L41] 5 assert !stopped; VAL [pendingIo=3, stopped=false, stoppingEvent=false, stoppingFlag=false] [L23] FORK 0 fork 5 DeviceThread(); VAL [pendingIo=3, stopped=false, stoppingEvent=false, stoppingFlag=false] [L51] 6 assume !stoppingFlag; VAL [pendingIo=3, stopped=false, stoppingEvent=false, stoppingFlag=false] [L52] 6 pendingIo := pendingIo + 1; VAL [pendingIo=4, stopped=false, stoppingEvent=false, stoppingFlag=false] [L41] 6 assert !stopped; VAL [pendingIo=4, stopped=false, stoppingEvent=false, stoppingFlag=false] [L41] 3 assert !stopped; VAL [pendingIo=4, stopped=false, stoppingEvent=false, stoppingFlag=false] [L24] FORK 0 fork 6 DeviceThread(); VAL [pendingIo=4, stopped=false, stoppingEvent=false, stoppingFlag=false] [L25] FORK 0 fork 7 DeviceThread(); VAL [pendingIo=4, stopped=false, stoppingEvent=false, stoppingFlag=false] [L60] 3 pendingIo := pendingIo - 1; [L61] COND FALSE 3 !(pendingIo == 0) VAL [pendingIo=3, stopped=false, stoppingEvent=false, stoppingFlag=false] [L51] 7 assume !stoppingFlag; VAL [pendingIo=3, stopped=false, stoppingEvent=false, stoppingFlag=false] [L51] 8 assume !stoppingFlag; VAL [pendingIo=3, stopped=false, stoppingEvent=false, stoppingFlag=false] [L26] FORK 0 fork 8 DeviceThread(); VAL [pendingIo=3, stopped=false, stoppingEvent=false, stoppingFlag=false] [L52] 7 pendingIo := pendingIo + 1; VAL [pendingIo=4, stopped=false, stoppingEvent=false, stoppingFlag=false] [L41] 7 assert !stopped; VAL [pendingIo=4, stopped=false, stoppingEvent=false, stoppingFlag=false] [L51] 9 assume !stoppingFlag; VAL [pendingIo=4, stopped=false, stoppingEvent=false, stoppingFlag=false] [L52] 8 pendingIo := pendingIo + 1; VAL [pendingIo=5, stopped=false, stoppingEvent=false, stoppingFlag=false] [L52] 9 pendingIo := pendingIo + 1; VAL [pendingIo=6, stopped=false, stoppingEvent=false, stoppingFlag=false] [L27] FORK 0 fork 9 DeviceThread(); VAL [pendingIo=6, stopped=false, stoppingEvent=false, stoppingFlag=false] [L51] 3 assume !stoppingFlag; VAL [pendingIo=6, stopped=false, stoppingEvent=false, stoppingFlag=false] [L60] 7 pendingIo := pendingIo - 1; [L61] COND FALSE 7 !(pendingIo == 0) VAL [pendingIo=5, stopped=false, stoppingEvent=false, stoppingFlag=false] [L52] 3 pendingIo := pendingIo + 1; VAL [pendingIo=6, stopped=false, stoppingEvent=false, stoppingFlag=false] [L41] 9 assert !stopped; VAL [pendingIo=6, stopped=false, stoppingEvent=false, stoppingFlag=false] [L28] FORK 0 fork 10 DeviceThread(); VAL [pendingIo=6, stopped=false, stoppingEvent=false, stoppingFlag=false] [L41] 8 assert !stopped; VAL [pendingIo=6, stopped=false, stoppingEvent=false, stoppingFlag=false] [L51] 11 assume !stoppingFlag; VAL [pendingIo=6, stopped=false, stoppingEvent=false, stoppingFlag=false] [L51] 10 assume !stoppingFlag; VAL [pendingIo=6, stopped=false, stoppingEvent=false, stoppingFlag=false] [L52] 11 pendingIo := pendingIo + 1; VAL [pendingIo=7, stopped=false, stoppingEvent=false, stoppingFlag=false] [L60] 8 pendingIo := pendingIo - 1; [L61] COND FALSE 8 !(pendingIo == 0) VAL [pendingIo=6, stopped=false, stoppingEvent=false, stoppingFlag=false] [L51] 7 assume !stoppingFlag; VAL [pendingIo=6, stopped=false, stoppingEvent=false, stoppingFlag=false] [L52] 10 pendingIo := pendingIo + 1; VAL [pendingIo=7, stopped=false, stoppingEvent=false, stoppingFlag=false] [L60] 9 pendingIo := pendingIo - 1; [L61] COND FALSE 9 !(pendingIo == 0) VAL [pendingIo=6, stopped=false, stoppingEvent=false, stoppingFlag=false] [L51] 8 assume !stoppingFlag; VAL [pendingIo=6, stopped=false, stoppingEvent=false, stoppingFlag=false] [L41] 11 assert !stopped; VAL [pendingIo=6, stopped=false, stoppingEvent=false, stoppingFlag=false] [L52] 7 pendingIo := pendingIo + 1; VAL [pendingIo=7, stopped=false, stoppingEvent=false, stoppingFlag=false] [L41] 7 assert !stopped; VAL [pendingIo=7, stopped=false, stoppingEvent=false, stoppingFlag=false] [L41] 3 assert !stopped; VAL [pendingIo=7, stopped=false, stoppingEvent=false, stoppingFlag=false] [L51] 9 assume !stoppingFlag; VAL [pendingIo=7, stopped=false, stoppingEvent=false, stoppingFlag=false] [L52] 9 pendingIo := pendingIo + 1; VAL [pendingIo=8, stopped=false, stoppingEvent=false, stoppingFlag=false] [L60] 7 pendingIo := pendingIo - 1; [L61] COND FALSE 7 !(pendingIo == 0) VAL [pendingIo=7, stopped=false, stoppingEvent=false, stoppingFlag=false] [L51] 7 assume !stoppingFlag; VAL [pendingIo=7, stopped=false, stoppingEvent=false, stoppingFlag=false] [L60] 11 pendingIo := pendingIo - 1; [L61] COND FALSE 11 !(pendingIo == 0) VAL [pendingIo=6, stopped=false, stoppingEvent=false, stoppingFlag=false] [L52] 8 pendingIo := pendingIo + 1; VAL [pendingIo=7, stopped=false, stoppingEvent=false, stoppingFlag=false] [L41] 9 assert !stopped; VAL [pendingIo=7, stopped=false, stoppingEvent=false, stoppingFlag=false] [L51] 11 assume !stoppingFlag; VAL [pendingIo=7, stopped=false, stoppingEvent=false, stoppingFlag=false] [L41] 8 assert !stopped; VAL [pendingIo=7, stopped=false, stoppingEvent=false, stoppingFlag=false] [L52] 11 pendingIo := pendingIo + 1; VAL [pendingIo=8, stopped=false, stoppingEvent=false, stoppingFlag=false] [L52] 7 pendingIo := pendingIo + 1; VAL [pendingIo=9, stopped=false, stoppingEvent=false, stoppingFlag=false] [L41] 11 assert !stopped; VAL [pendingIo=9, stopped=false, stoppingEvent=false, stoppingFlag=false] [L41] 7 assert !stopped; VAL [pendingIo=9, stopped=false, stoppingEvent=false, stoppingFlag=false] [L60] 8 pendingIo := pendingIo - 1; [L61] COND FALSE 8 !(pendingIo == 0) VAL [pendingIo=8, stopped=false, stoppingEvent=false, stoppingFlag=false] [L51] 8 assume !stoppingFlag; VAL [pendingIo=8, stopped=false, stoppingEvent=false, stoppingFlag=false] [L60] 11 pendingIo := pendingIo - 1; [L61] COND FALSE 11 !(pendingIo == 0) VAL [pendingIo=7, stopped=false, stoppingEvent=false, stoppingFlag=false] [L51] 11 assume !stoppingFlag; VAL [pendingIo=7, stopped=false, stoppingEvent=false, stoppingFlag=false] [L60] 7 pendingIo := pendingIo - 1; [L61] COND FALSE 7 !(pendingIo == 0) VAL [pendingIo=6, stopped=false, stoppingEvent=false, stoppingFlag=false] [L52] 8 pendingIo := pendingIo + 1; VAL [pendingIo=7, stopped=false, stoppingEvent=false, stoppingFlag=false] [L41] 8 assert !stopped; VAL [pendingIo=7, stopped=false, stoppingEvent=false, stoppingFlag=false] [L41] 10 assert !stopped; VAL [pendingIo=7, stopped=false, stoppingEvent=false, stoppingFlag=false] [L60] 3 pendingIo := pendingIo - 1; [L61] COND FALSE 3 !(pendingIo == 0) VAL [pendingIo=6, stopped=false, stoppingEvent=false, stoppingFlag=false] [L60] 10 pendingIo := pendingIo - 1; [L61] COND FALSE 10 !(pendingIo == 0) VAL [pendingIo=5, stopped=false, stoppingEvent=false, stoppingFlag=false] [L60] 8 pendingIo := pendingIo - 1; [L61] COND FALSE 8 !(pendingIo == 0) VAL [pendingIo=4, stopped=false, stoppingEvent=false, stoppingFlag=false] [L51] 10 assume !stoppingFlag; VAL [pendingIo=4, stopped=false, stoppingEvent=false, stoppingFlag=false] [L52] 10 pendingIo := pendingIo + 1; VAL [pendingIo=5, stopped=false, stoppingEvent=false, stoppingFlag=false] [L60] 9 pendingIo := pendingIo - 1; [L61] COND FALSE 9 !(pendingIo == 0) VAL [pendingIo=4, stopped=false, stoppingEvent=false, stoppingFlag=false] [L51] 8 assume !stoppingFlag; VAL [pendingIo=4, stopped=false, stoppingEvent=false, stoppingFlag=false] [L41] 10 assert !stopped; VAL [pendingIo=4, stopped=false, stoppingEvent=false, stoppingFlag=false] [L51] 9 assume !stoppingFlag; VAL [pendingIo=4, stopped=false, stoppingEvent=false, stoppingFlag=false] [L60] 10 pendingIo := pendingIo - 1; [L61] COND FALSE 10 !(pendingIo == 0) VAL [pendingIo=3, stopped=false, stoppingEvent=false, stoppingFlag=false] [L52] 8 pendingIo := pendingIo + 1; VAL [pendingIo=4, stopped=false, stoppingEvent=false, stoppingFlag=false] [L52] 9 pendingIo := pendingIo + 1; VAL [pendingIo=5, stopped=false, stoppingEvent=false, stoppingFlag=false] [L41] 9 assert !stopped; VAL [pendingIo=5, stopped=false, stoppingEvent=false, stoppingFlag=false] [L41] 8 assert !stopped; VAL [pendingIo=5, stopped=false, stoppingEvent=false, stoppingFlag=false] [L60] 8 pendingIo := pendingIo - 1; [L61] COND FALSE 8 !(pendingIo == 0) VAL [pendingIo=4, stopped=false, stoppingEvent=false, stoppingFlag=false] [L51] 10 assume !stoppingFlag; VAL [pendingIo=4, stopped=false, stoppingEvent=false, stoppingFlag=false] [L52] 10 pendingIo := pendingIo + 1; VAL [pendingIo=5, stopped=false, stoppingEvent=false, stoppingFlag=false] [L60] 9 pendingIo := pendingIo - 1; [L61] COND FALSE 9 !(pendingIo == 0) VAL [pendingIo=4, stopped=false, stoppingEvent=false, stoppingFlag=false] [L41] 10 assert !stopped; VAL [pendingIo=4, stopped=false, stoppingEvent=false, stoppingFlag=false] [L60] 10 pendingIo := pendingIo - 1; [L61] COND FALSE 10 !(pendingIo == 0) VAL [pendingIo=3, stopped=false, stoppingEvent=false, stoppingFlag=false] [L51] 9 assume !stoppingFlag; VAL [pendingIo=3, stopped=false, stoppingEvent=false, stoppingFlag=false] [L51] 10 assume !stoppingFlag; VAL [pendingIo=3, stopped=false, stoppingEvent=false, stoppingFlag=false] [L73] 1 stoppingFlag := true; VAL [pendingIo=3, stopped=false, stoppingEvent=false, stoppingFlag=true] [L83] 1 pendingIo := pendingIo - 1; [L84] COND FALSE 1 !(pendingIo == 0) VAL [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=true] [L52] 10 pendingIo := pendingIo + 1; VAL [pendingIo=3, stopped=false, stoppingEvent=false, stoppingFlag=true] [L41] 10 assert !stopped; VAL [pendingIo=3, stopped=false, stoppingEvent=false, stoppingFlag=true] [L60] 6 pendingIo := pendingIo - 1; [L61] COND FALSE 6 !(pendingIo == 0) VAL [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=true] [L60] 5 pendingIo := pendingIo - 1; [L61] COND FALSE 5 !(pendingIo == 0) VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=true] [L60] 10 pendingIo := pendingIo - 1; [L61] COND TRUE 10 pendingIo == 0 [L62] 10 stoppingEvent := true; VAL [pendingIo=0, stopped=false, stoppingEvent=true, stoppingFlag=true] [L75] 1 assume stoppingEvent; VAL [pendingIo=0, stopped=false, stoppingEvent=true, stoppingFlag=true] [L76] 1 stopped := true; VAL [pendingIo=0, stopped=true, stoppingEvent=true, stoppingFlag=true] [L52] 9 pendingIo := pendingIo + 1; 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: 38605.9ms, OverallIterations: 6, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 17.9ms, PartialOrderReductionTime: 36224.5ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 36, 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: 38.9ms SsaConstructionTime, 158.9ms SatisfiabilityAnalysisTime, 1300.1ms InterpolantComputationTime, 663 NumberOfCodeBlocks, 663 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 543 ConstructedInterpolants, 0 QuantifiedInterpolants, 2734 SizeOfPredicates, 3 NumberOfNonLiveVariables, 392 ConjunctsInSsa, 123 ConjunctsInUnsatCore, 8 InterpolantComputations, 2 PerfectInterpolantSequences, 170/304 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...