/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.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth05-incorrect.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d310483fe8b4879eee5de19363f50e4b839cc4ec-d310483 [2021-06-24 18:48:48,358 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-24 18:48:48,359 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-24 18:48:48,385 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-24 18:48:48,392 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-24 18:48:48,393 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-24 18:48:48,393 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-24 18:48:48,394 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-24 18:48:48,395 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-24 18:48:48,395 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-24 18:48:48,396 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-24 18:48:48,398 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-24 18:48:48,398 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-24 18:48:48,399 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-24 18:48:48,400 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-24 18:48:48,401 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-24 18:48:48,403 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-24 18:48:48,421 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.epf [2021-06-24 18:48:48,442 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-24 18:48:48,443 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-24 18:48:48,443 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-24 18:48:48,443 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-24 18:48:48,444 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-24 18:48:48,444 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-24 18:48:48,444 INFO L138 SettingsManager]: * Use SBE=true [2021-06-24 18:48:48,444 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-24 18:48:48,444 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-24 18:48:48,445 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-24 18:48:48,445 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-24 18:48:48,445 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-24 18:48:48,445 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-24 18:48:48,445 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-24 18:48:48,445 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-24 18:48:48,445 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-24 18:48:48,446 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-24 18:48:48,446 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-24 18:48:48,446 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-24 18:48:48,446 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-24 18:48:48,446 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-24 18:48:48,446 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-24 18:48:48,446 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-24 18:48:48,447 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-24 18:48:48,447 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-24 18:48:48,447 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-24 18:48:48,447 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-24 18:48:48,447 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-24 18:48:48,447 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-24 18:48:48,447 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-24 18:48:48,448 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-24 18:48:48,448 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-24 18:48:48,448 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-06-24 18:48:48,450 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-24 18:48:48,699 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-24 18:48:48,712 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-24 18:48:48,713 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-24 18:48:48,714 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-24 18:48:48,715 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-24 18:48:48,715 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth05-incorrect.bpl [2021-06-24 18:48:48,716 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth05-incorrect.bpl' [2021-06-24 18:48:48,733 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-24 18:48:48,752 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-24 18:48:48,754 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-24 18:48:48,754 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-24 18:48:48,754 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-24 18:48:48,763 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "bluetooth05-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 06:48:48" (1/1) ... [2021-06-24 18:48:48,767 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "bluetooth05-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 06:48:48" (1/1) ... [2021-06-24 18:48:48,779 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-24 18:48:48,781 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-24 18:48:48,781 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-24 18:48:48,781 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-24 18:48:48,786 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "bluetooth05-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 06:48:48" (1/1) ... [2021-06-24 18:48:48,786 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "bluetooth05-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 06:48:48" (1/1) ... [2021-06-24 18:48:48,787 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "bluetooth05-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 06:48:48" (1/1) ... [2021-06-24 18:48:48,787 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "bluetooth05-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 06:48:48" (1/1) ... [2021-06-24 18:48:48,789 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "bluetooth05-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 06:48:48" (1/1) ... [2021-06-24 18:48:48,791 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "bluetooth05-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 06:48:48" (1/1) ... [2021-06-24 18:48:48,791 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "bluetooth05-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 06:48:48" (1/1) ... [2021-06-24 18:48:48,792 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-24 18:48:48,794 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-24 18:48:48,795 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-24 18:48:48,795 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-24 18:48:48,796 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "bluetooth05-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 06:48:48" (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 18:48:48,849 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThread given in one single declaration [2021-06-24 18:48:48,850 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThread [2021-06-24 18:48:48,850 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThread [2021-06-24 18:48:48,850 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ServerThread given in one single declaration [2021-06-24 18:48:48,850 INFO L130 BoogieDeclarations]: Found specification of procedure ServerThread [2021-06-24 18:48:48,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ServerThread [2021-06-24 18:48:48,850 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-24 18:48:48,850 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-24 18:48:48,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-24 18:48:48,852 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 18:48:49,062 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-24 18:48:49,063 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-06-24 18:48:49,064 INFO L202 PluginConnector]: Adding new model bluetooth05-incorrect.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 06:48:49 BoogieIcfgContainer [2021-06-24 18:48:49,064 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-24 18:48:49,065 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-24 18:48:49,065 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-24 18:48:49,067 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-24 18:48:49,067 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth05-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 06:48:48" (1/2) ... [2021-06-24 18:48:49,068 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7559b04f and model type bluetooth05-incorrect.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.06 06:48:49, skipping insertion in model container [2021-06-24 18:48:49,068 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth05-incorrect.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 06:48:49" (2/2) ... [2021-06-24 18:48:49,069 INFO L111 eAbstractionObserver]: Analyzing ICFG bluetooth05-incorrect.bpl [2021-06-24 18:48:49,072 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-24 18:48:49,073 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-24 18:48:49,073 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-24 18:48:49,073 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-24 18:48:49,121 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-24 18:48:49,141 INFO L255 AbstractCegarLoop]: Starting to check reachability of 6 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 18:48:49,207 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-24 18:48:49,207 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-24 18:48:49,208 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-24 18:48:49,208 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-24 18:48:49,208 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-24 18:48:49,208 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-24 18:48:49,208 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-24 18:48:49,208 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-24 18:48:50,551 INFO L301 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE (1/6) [2021-06-24 18:48:50,553 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-06-24 18:48:50,572 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-24 18:48:50,572 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-24 18:48:50,572 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-24 18:48:50,572 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-24 18:48:50,573 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-24 18:48:50,573 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-24 18:48:50,573 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-24 18:48:50,573 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == DeviceThreadThread1of1ForFork4======== [2021-06-24 18:48:50,578 INFO L430 AbstractCegarLoop]: === Iteration 1 === [DeviceThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-06-24 18:48:50,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-24 18:48:50,585 INFO L82 PathProgramCache]: Analyzing trace with hash -1296175233, now seen corresponding path program 1 times [2021-06-24 18:48:50,591 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-24 18:48:50,592 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580279069] [2021-06-24 18:48:50,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-24 18:48:50,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-24 18:48:50,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-24 18:48:50,683 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-24 18:48:50,683 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580279069] [2021-06-24 18:48:50,684 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580279069] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-24 18:48:50,684 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-24 18:48:50,684 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-24 18:48:50,684 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395173235] [2021-06-24 18:48:50,688 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-24 18:48:50,688 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-24 18:48:50,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-24 18:48:50,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-24 18:48:50,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-24 18:48:50,697 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-24 18:48:50,698 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-24 18:48:50,698 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-24 18:48:50,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 18:48:50,824 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-24 18:48:50,824 INFO L430 AbstractCegarLoop]: === Iteration 2 === [DeviceThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-06-24 18:48:50,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-24 18:48:50,824 INFO L82 PathProgramCache]: Analyzing trace with hash 351461619, now seen corresponding path program 1 times [2021-06-24 18:48:50,824 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-24 18:48:50,824 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335125077] [2021-06-24 18:48:50,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-24 18:48:50,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-24 18:48:50,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-24 18:48:50,853 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-24 18:48:50,853 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335125077] [2021-06-24 18:48:50,853 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1335125077] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-24 18:48:50,853 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-24 18:48:50,854 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-24 18:48:50,854 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89205863] [2021-06-24 18:48:50,855 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-24 18:48:50,856 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-24 18:48:50,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-24 18:48:50,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-24 18:48:50,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-24 18:48:50,858 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-24 18:48:50,858 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-24 18:48:50,858 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-24 18:48:50,858 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-24 18:48:51,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 18:48:51,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 18:48:51,007 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-24 18:48:51,008 INFO L430 AbstractCegarLoop]: === Iteration 3 === [DeviceThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-06-24 18:48:51,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-24 18:48:51,008 INFO L82 PathProgramCache]: Analyzing trace with hash 422294015, now seen corresponding path program 1 times [2021-06-24 18:48:51,008 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-24 18:48:51,008 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710516356] [2021-06-24 18:48:51,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-24 18:48:51,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-24 18:48:51,169 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-06-24 18:48:51,170 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-24 18:48:51,173 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710516356] [2021-06-24 18:48:51,173 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710516356] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-24 18:48:51,173 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-24 18:48:51,173 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-24 18:48:51,173 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253896604] [2021-06-24 18:48:51,174 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-24 18:48:51,174 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-24 18:48:51,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-24 18:48:51,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=37, Unknown=0, NotChecked=0, Total=72 [2021-06-24 18:48:51,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-24 18:48:51,175 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-24 18:48:51,175 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 8 states have internal predecessors, (47), 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 18:48:51,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-24 18:48:51,175 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-24 18:48:51,176 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-24 18:48:53,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 18:48:53,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 18:48:53,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-24 18:48:53,599 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-24 18:48:53,600 INFO L430 AbstractCegarLoop]: === Iteration 4 === [DeviceThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-06-24 18:48:53,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-24 18:48:53,600 INFO L82 PathProgramCache]: Analyzing trace with hash -1841230090, now seen corresponding path program 1 times [2021-06-24 18:48:53,600 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-24 18:48:53,600 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126760258] [2021-06-24 18:48:53,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-24 18:48:53,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-24 18:48:53,608 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-24 18:48:53,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-24 18:48:53,614 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-24 18:48:53,629 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-06-24 18:48:53,629 INFO L605 BasicCegarLoop]: Counterexample might be feasible [2021-06-24 18:48:53,629 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-24 18:48:53,631 INFO L301 ceAbstractionStarter]: Result for error location DeviceThreadThread1of1ForFork4 was UNSAFE (2/6) [2021-06-24 18:48:53,632 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-24 18:48:53,642 INFO L202 PluginConnector]: Adding new model bluetooth05-incorrect.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.06 06:48:53 BasicIcfg [2021-06-24 18:48:53,642 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-24 18:48:53,643 INFO L168 Benchmark]: Toolchain (without parser) took 4909.16 ms. Allocated memory was 206.6 MB in the beginning and 539.0 MB in the end (delta: 332.4 MB). Free memory was 187.3 MB in the beginning and 279.8 MB in the end (delta: -92.5 MB). Peak memory consumption was 241.0 MB. Max. memory is 8.0 GB. [2021-06-24 18:48:53,643 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.11 ms. Allocated memory is still 206.6 MB. Free memory is still 188.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-06-24 18:48:53,644 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.04 ms. Allocated memory is still 206.6 MB. Free memory was 187.2 MB in the beginning and 185.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-06-24 18:48:53,644 INFO L168 Benchmark]: Boogie Preprocessor took 12.34 ms. Allocated memory is still 206.6 MB. Free memory was 185.5 MB in the beginning and 184.5 MB in the end (delta: 966.8 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-06-24 18:48:53,644 INFO L168 Benchmark]: RCFGBuilder took 269.78 ms. Allocated memory is still 206.6 MB. Free memory was 184.5 MB in the beginning and 171.4 MB in the end (delta: 13.1 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2021-06-24 18:48:53,644 INFO L168 Benchmark]: TraceAbstraction took 4577.16 ms. Allocated memory was 206.6 MB in the beginning and 539.0 MB in the end (delta: 332.4 MB). Free memory was 170.9 MB in the beginning and 279.8 MB in the end (delta: -108.8 MB). Peak memory consumption was 224.2 MB. Max. memory is 8.0 GB. [2021-06-24 18:48:53,646 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.11 ms. Allocated memory is still 206.6 MB. Free memory is still 188.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 26.04 ms. Allocated memory is still 206.6 MB. Free memory was 187.2 MB in the beginning and 185.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 12.34 ms. Allocated memory is still 206.6 MB. Free memory was 185.5 MB in the beginning and 184.5 MB in the end (delta: 966.8 kB). There was no memory consumed. Max. memory is 8.0 GB. * RCFGBuilder took 269.78 ms. Allocated memory is still 206.6 MB. Free memory was 184.5 MB in the beginning and 171.4 MB in the end (delta: 13.1 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 4577.16 ms. Allocated memory was 206.6 MB in the beginning and 539.0 MB in the end (delta: 332.4 MB). Free memory was 170.9 MB in the beginning and 279.8 MB in the end (delta: -108.8 MB). Peak memory consumption was 224.2 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 52832, positive: 46117, positive conditional: 46117, positive unconditional: 0, negative: 6715, negative conditional: 6715, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 48875, positive: 46117, positive conditional: 46117, positive unconditional: 0, negative: 2758, negative conditional: 2758, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 48875, positive: 46117, positive conditional: 0, positive unconditional: 46117, negative: 2758, negative conditional: 0, negative unconditional: 2758, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 453, positive: 424, positive conditional: 0, positive unconditional: 424, negative: 29, negative conditional: 0, negative unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 453, positive: 396, positive conditional: 0, positive unconditional: 396, negative: 57, negative conditional: 0, negative unconditional: 57, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 57, positive: 28, positive conditional: 0, positive unconditional: 28, negative: 29, negative conditional: 0, negative unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 57, positive: 28, positive conditional: 0, positive unconditional: 28, negative: 29, negative conditional: 0, negative unconditional: 29, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 230, positive: 134, positive conditional: 0, positive unconditional: 134, negative: 96, negative conditional: 0, negative unconditional: 96, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 48875, positive: 45693, positive conditional: 0, positive unconditional: 45693, negative: 2729, negative conditional: 0, negative unconditional: 2729, unknown: 453, unknown conditional: 0, unknown unconditional: 453] , Statistics on independence cache: Total cache size (in pairs): 453, Positive cache size: 424, Positive conditional cache size: 0, Positive unconditional cache size: 424, Negative cache size: 29, Negative conditional cache size: 0, Negative unconditional cache size: 29 ], Maximal queried relation: 0, Independence queries for same thread: 3957 - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 164438, positive: 157041, positive conditional: 157041, positive unconditional: 0, negative: 7397, negative conditional: 7397, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 158047, positive: 157041, positive conditional: 157041, positive unconditional: 0, negative: 1006, negative conditional: 1006, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 158047, positive: 153419, positive conditional: 0, positive unconditional: 153419, negative: 4628, negative conditional: 0, negative unconditional: 4628, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 769, positive: 724, positive conditional: 0, positive unconditional: 724, negative: 45, negative conditional: 0, negative unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 769, positive: 674, positive conditional: 0, positive unconditional: 674, negative: 95, negative conditional: 0, negative unconditional: 95, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 95, positive: 50, positive conditional: 0, positive unconditional: 50, negative: 45, negative conditional: 0, negative unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 179, positive: 126, positive conditional: 76, positive unconditional: 50, negative: 53, negative conditional: 8, negative unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 316, positive: 215, positive conditional: 114, positive unconditional: 101, negative: 101, negative conditional: 14, negative unconditional: 88, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 158047, positive: 152695, positive conditional: 0, positive unconditional: 152695, negative: 4583, negative conditional: 0, negative unconditional: 4583, unknown: 769, unknown conditional: 0, unknown unconditional: 769] , Statistics on independence cache: Total cache size (in pairs): 853, Positive cache size: 800, Positive conditional cache size: 76, Positive unconditional cache size: 724, Negative cache size: 53, Negative conditional cache size: 8, Negative unconditional cache size: 45, SemanticConditionEliminator.Independence Queries: [ total: 13824, positive: 3622, positive conditional: 3622, positive unconditional: 0, negative: 10202, negative conditional: 271, negative unconditional: 9931, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 13824, positive: 3622, positive conditional: 3622, positive unconditional: 0, negative: 10202, negative conditional: 271, negative unconditional: 9931, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 179, positive: 126, positive conditional: 76, positive unconditional: 50, negative: 53, negative conditional: 8, negative unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 316, positive: 215, positive conditional: 114, positive unconditional: 101, negative: 101, negative conditional: 14, negative unconditional: 88, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 13824, positive: 3546, positive conditional: 3546, positive unconditional: 0, negative: 10194, negative conditional: 263, negative unconditional: 9931, unknown: 84, unknown conditional: 84, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 853, Positive cache size: 800, Positive conditional cache size: 76, Positive unconditional cache size: 724, Negative cache size: 53, Negative conditional cache size: 8, Negative unconditional cache size: 45, Eliminated conditions: 9931, SemanticConditionEliminator.Independence Queries: [ total: 13824, positive: 3622, positive conditional: 3622, positive unconditional: 0, negative: 10202, negative conditional: 271, negative unconditional: 9931, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 13824, positive: 3622, positive conditional: 3622, positive unconditional: 0, negative: 10202, negative conditional: 271, negative unconditional: 9931, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 179, positive: 126, positive conditional: 76, positive unconditional: 50, negative: 53, negative conditional: 8, negative unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 316, positive: 215, positive conditional: 114, positive unconditional: 101, negative: 101, negative conditional: 14, negative unconditional: 88, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 13824, positive: 3546, positive conditional: 3546, positive unconditional: 0, negative: 10194, negative conditional: 263, negative unconditional: 9931, unknown: 84, unknown conditional: 84, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 853, Positive cache size: 800, Positive conditional cache size: 76, Positive unconditional cache size: 724, Negative cache size: 53, Negative conditional cache size: 8, Negative unconditional cache size: 45, Eliminated conditions: 9931, SemanticConditionEliminator.Independence Queries: [ total: 13824, positive: 3622, positive conditional: 3622, positive unconditional: 0, negative: 10202, negative conditional: 271, negative unconditional: 9931, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 13824, positive: 3622, positive conditional: 3622, positive unconditional: 0, negative: 10202, negative conditional: 271, negative unconditional: 9931, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 179, positive: 126, positive conditional: 76, positive unconditional: 50, negative: 53, negative conditional: 8, negative unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 316, positive: 215, positive conditional: 114, positive unconditional: 101, negative: 101, negative conditional: 14, negative unconditional: 88, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 13824, positive: 3546, positive conditional: 3546, positive unconditional: 0, negative: 10194, negative conditional: 263, negative unconditional: 9931, unknown: 84, unknown conditional: 84, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 853, Positive cache size: 800, Positive conditional cache size: 76, Positive unconditional cache size: 724, Negative cache size: 53, Negative conditional cache size: 8, Negative unconditional cache size: 45, Eliminated conditions: 9931 ], Maximal queried relation: 3, Independence queries for same thread: 6391 - CounterExampleResult [Line: 36]: 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] [L46] 2 assume !stoppingFlag; VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L20] FORK 0 fork 2 DeviceThread(); VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L46] 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] [L46] 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] [L46] 5 assume !stoppingFlag; VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L68] 1 stoppingFlag := true; VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=true] [L78] 1 pendingIo := pendingIo - 1; [L79] COND TRUE 1 pendingIo == 0 [L80] 1 stoppingEvent := true; VAL [pendingIo=0, stopped=false, stoppingEvent=true, stoppingFlag=true] [L47] 5 pendingIo := pendingIo + 1; VAL [pendingIo=1, stopped=false, stoppingEvent=true, stoppingFlag=true] [L47] 3 pendingIo := pendingIo + 1; VAL [pendingIo=2, stopped=false, stoppingEvent=true, stoppingFlag=true] [L36] 3 assert !stopped; VAL [pendingIo=2, stopped=false, stoppingEvent=true, stoppingFlag=true] [L55] 3 pendingIo := pendingIo - 1; [L56] COND FALSE 3 !(pendingIo == 0) VAL [pendingIo=1, stopped=false, stoppingEvent=true, stoppingFlag=true] [L47] 4 pendingIo := pendingIo + 1; VAL [pendingIo=2, stopped=false, stoppingEvent=true, stoppingFlag=true] [L36] 4 assert !stopped; VAL [pendingIo=2, stopped=false, stoppingEvent=true, stoppingFlag=true] [L55] 4 pendingIo := pendingIo - 1; [L56] COND FALSE 4 !(pendingIo == 0) VAL [pendingIo=1, stopped=false, stoppingEvent=true, stoppingFlag=true] [L47] 2 pendingIo := pendingIo + 1; VAL [pendingIo=2, stopped=false, stoppingEvent=true, stoppingFlag=true] [L36] 2 assert !stopped; VAL [pendingIo=2, stopped=false, stoppingEvent=true, stoppingFlag=true] [L55] 2 pendingIo := pendingIo - 1; [L56] COND FALSE 2 !(pendingIo == 0) VAL [pendingIo=1, stopped=false, stoppingEvent=true, stoppingFlag=true] [L70] 1 assume stoppingEvent; VAL [pendingIo=1, stopped=false, stoppingEvent=true, stoppingFlag=true] [L71] 1 stopped := true; VAL [pendingIo=1, stopped=true, stoppingEvent=true, stoppingFlag=true] [L36] 5 assert !stopped; VAL [pendingIo=1, stopped=true, stoppingEvent=true, stoppingFlag=true] - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 9 procedures, 66 locations, 12 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1383.3ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 16.9ms, PartialOrderReductionTime: 1317.9ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: DeviceThreadThread1of1ForFork4 with 1 thread instances CFG has 9 procedures, 66 locations, 12 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 3072.0ms, OverallIterations: 4, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1.1ms, PartialOrderReductionTime: 2701.9ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 14, 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: 8.4ms SsaConstructionTime, 58.9ms SatisfiabilityAnalysisTime, 172.6ms InterpolantComputationTime, 130 NumberOfCodeBlocks, 130 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 96 ConstructedInterpolants, 0 QuantifiedInterpolants, 338 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 19/19 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...