/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-DelaySleepPersistentFixedOrder-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-incorrect05.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-1c3aa5735269c4be989a50fc1da9ea7b9492ef29-1c3aa57 [2021-07-01 12:35:17,812 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-01 12:35:17,815 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-01 12:35:17,852 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-01 12:35:17,852 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-01 12:35:17,855 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-01 12:35:17,857 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-01 12:35:17,862 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-01 12:35:17,864 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-01 12:35:17,868 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-01 12:35:17,869 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-01 12:35:17,870 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2021-07-01 12:35:17,921 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-DelaySleepPersistentFixedOrder-NoLbe.epf [2021-07-01 12:35:17,945 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-01 12:35:17,945 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-01 12:35:17,946 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-01 12:35:17,946 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-01 12:35:17,948 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-01 12:35:17,948 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-01 12:35:17,948 INFO L138 SettingsManager]: * Use SBE=true [2021-07-01 12:35:17,948 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-01 12:35:17,948 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-01 12:35:17,948 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-01 12:35:17,949 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-01 12:35:17,949 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-01 12:35:17,949 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-01 12:35:17,949 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-01 12:35:17,950 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-01 12:35:17,950 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-01 12:35:17,950 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-01 12:35:17,950 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-01 12:35:17,950 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-01 12:35:17,950 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-01 12:35:17,950 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-01 12:35:17,950 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-01 12:35:17,950 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-01 12:35:17,950 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-01 12:35:17,951 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-01 12:35:17,951 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-01 12:35:17,951 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-01 12:35:17,951 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-01 12:35:17,951 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-01 12:35:17,951 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-01 12:35:17,951 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-07-01 12:35:17,951 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-01 12:35:17,952 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_DELAY_SET_FIXEDORDER [2021-07-01 12:35:17,952 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-01 12:35:18,318 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-01 12:35:18,346 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-01 12:35:18,348 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-01 12:35:18,349 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-01 12:35:18,351 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-01 12:35:18,352 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-incorrect05.bpl [2021-07-01 12:35:18,352 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-incorrect05.bpl' [2021-07-01 12:35:18,382 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-01 12:35:18,384 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-01 12:35:18,395 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-01 12:35:18,398 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-01 12:35:18,398 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-01 12:35:18,411 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "bluetooth-incorrect05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 12:35:18" (1/1) ... [2021-07-01 12:35:18,419 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "bluetooth-incorrect05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 12:35:18" (1/1) ... [2021-07-01 12:35:18,436 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-01 12:35:18,438 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-01 12:35:18,438 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-01 12:35:18,439 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-01 12:35:18,444 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "bluetooth-incorrect05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 12:35:18" (1/1) ... [2021-07-01 12:35:18,444 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "bluetooth-incorrect05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 12:35:18" (1/1) ... [2021-07-01 12:35:18,444 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "bluetooth-incorrect05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 12:35:18" (1/1) ... [2021-07-01 12:35:18,445 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "bluetooth-incorrect05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 12:35:18" (1/1) ... [2021-07-01 12:35:18,449 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "bluetooth-incorrect05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 12:35:18" (1/1) ... [2021-07-01 12:35:18,451 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "bluetooth-incorrect05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 12:35:18" (1/1) ... [2021-07-01 12:35:18,452 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "bluetooth-incorrect05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 12:35:18" (1/1) ... [2021-07-01 12:35:18,452 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-01 12:35:18,455 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-01 12:35:18,455 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-01 12:35:18,455 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-01 12:35:18,456 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "bluetooth-incorrect05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 12:35:18" (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 [2021-07-01 12:35:18,569 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThreadWithAssert given in one single declaration [2021-07-01 12:35:18,569 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThreadWithAssert [2021-07-01 12:35:18,569 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThreadWithAssert [2021-07-01 12:35:18,569 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThread given in one single declaration [2021-07-01 12:35:18,569 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThread [2021-07-01 12:35:18,570 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThread [2021-07-01 12:35:18,570 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ServerThread given in one single declaration [2021-07-01 12:35:18,570 INFO L130 BoogieDeclarations]: Found specification of procedure ServerThread [2021-07-01 12:35:18,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ServerThread [2021-07-01 12:35:18,570 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-01 12:35:18,570 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-01 12:35:18,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-01 12:35:18,571 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-01 12:35:18,777 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-01 12:35:18,777 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-07-01 12:35:18,779 INFO L202 PluginConnector]: Adding new model bluetooth-incorrect05.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:35:18 BoogieIcfgContainer [2021-07-01 12:35:18,779 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-01 12:35:18,780 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-01 12:35:18,780 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-01 12:35:18,782 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-01 12:35:18,783 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-incorrect05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 12:35:18" (1/2) ... [2021-07-01 12:35:18,783 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61089ff0 and model type bluetooth-incorrect05.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 12:35:18, skipping insertion in model container [2021-07-01 12:35:18,783 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-incorrect05.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 12:35:18" (2/2) ... [2021-07-01 12:35:18,784 INFO L111 eAbstractionObserver]: Analyzing ICFG bluetooth-incorrect05.bpl [2021-07-01 12:35:18,788 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-01 12:35:18,788 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-01 12:35:18,789 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-01 12:35:18,789 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-01 12:35:18,861 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-07-01 12:35:18,877 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 [2021-07-01 12:35:19,004 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-01 12:35:19,004 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-01 12:35:19,004 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-01 12:35:19,004 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-01 12:35:19,004 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-01 12:35:19,004 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-01 12:35:19,004 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-01 12:35:19,004 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-01 12:35:19,150 INFO L301 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE (1/2) [2021-07-01 12:35:19,151 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) [2021-07-01 12:35:19,220 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-01 12:35:19,221 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-01 12:35:19,221 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-01 12:35:19,221 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-07-01 12:35:19,221 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-01 12:35:19,223 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-01 12:35:19,223 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-01 12:35:19,223 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == DeviceThreadWithAssertThread1of1ForFork1======== [2021-07-01 12:35:19,376 INFO L430 AbstractCegarLoop]: === Iteration 1 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 12:35:19,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 12:35:19,380 INFO L82 PathProgramCache]: Analyzing trace with hash 360633895, now seen corresponding path program 1 times [2021-07-01 12:35:19,388 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 12:35:19,389 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362665339] [2021-07-01 12:35:19,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 12:35:19,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 12:35:19,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-01 12:35:19,480 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 12:35:19,480 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362665339] [2021-07-01 12:35:19,480 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362665339] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-01 12:35:19,480 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-01 12:35:19,481 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-01 12:35:19,481 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209218339] [2021-07-01 12:35:19,484 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-01 12:35:19,484 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 12:35:19,491 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-01 12:35:19,492 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-01 12:35:19,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 12:35:19,493 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 12:35:19,494 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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) [2021-07-01 12:35:19,494 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 12:35:19,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 12:35:19,512 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-01 12:35:19,512 INFO L430 AbstractCegarLoop]: === Iteration 2 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 12:35:19,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 12:35:19,513 INFO L82 PathProgramCache]: Analyzing trace with hash 991956788, now seen corresponding path program 1 times [2021-07-01 12:35:19,513 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 12:35:19,513 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402974664] [2021-07-01 12:35:19,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 12:35:19,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 12:35:19,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-01 12:35:19,523 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 12:35:19,523 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402974664] [2021-07-01 12:35:19,523 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402974664] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-01 12:35:19,523 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-01 12:35:19,523 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-07-01 12:35:19,523 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949864700] [2021-07-01 12:35:19,524 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-01 12:35:19,524 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 12:35:19,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-01 12:35:19,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-01 12:35:19,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 12:35:19,525 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 12:35:19,525 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 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) [2021-07-01 12:35:19,525 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 12:35:19,525 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 12:35:19,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 12:35:19,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 12:35:19,706 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-01 12:35:19,707 INFO L430 AbstractCegarLoop]: === Iteration 3 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 12:35:19,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 12:35:19,707 INFO L82 PathProgramCache]: Analyzing trace with hash 773765356, now seen corresponding path program 1 times [2021-07-01 12:35:19,707 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 12:35:19,707 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436847445] [2021-07-01 12:35:19,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 12:35:19,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 12:35:19,821 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-01 12:35:19,821 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 12:35:19,821 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436847445] [2021-07-01 12:35:19,822 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436847445] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 12:35:19,822 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [835207544] [2021-07-01 12:35:19,822 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 [2021-07-01 12:35:19,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 12:35:19,857 WARN L261 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 24 conjunts are in the unsatisfiable core [2021-07-01 12:35:19,861 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-01 12:35:19,950 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-01 12:35:19,950 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [835207544] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-01 12:35:19,951 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-01 12:35:19,951 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2021-07-01 12:35:19,951 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443379159] [2021-07-01 12:35:19,951 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-07-01 12:35:19,951 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 12:35:19,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-07-01 12:35:19,952 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2021-07-01 12:35:19,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-07-01 12:35:19,952 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-07-01 12:35:19,952 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 4.0) internal successors, (44), 10 states have internal predecessors, (44), 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) [2021-07-01 12:35:19,952 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 12:35:19,952 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-07-01 12:35:19,952 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-07-01 12:35:22,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 12:35:22,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 12:35:22,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-01 12:35:22,296 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-01 12:35:22,296 INFO L430 AbstractCegarLoop]: === Iteration 4 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 12:35:22,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 12:35:22,297 INFO L82 PathProgramCache]: Analyzing trace with hash -1530589996, now seen corresponding path program 1 times [2021-07-01 12:35:22,298 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 12:35:22,298 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463514422] [2021-07-01 12:35:22,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 12:35:22,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-01 12:35:22,307 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-01 12:35:22,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-01 12:35:22,311 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-01 12:35:22,319 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-01 12:35:22,319 INFO L605 BasicCegarLoop]: Counterexample might be feasible [2021-07-01 12:35:22,319 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-07-01 12:35:22,322 INFO L301 ceAbstractionStarter]: Result for error location DeviceThreadWithAssertThread1of1ForFork1 was UNSAFE (2/2) [2021-07-01 12:35:22,323 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-07-01 12:35:22,331 INFO L202 PluginConnector]: Adding new model bluetooth-incorrect05.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 12:35:22 BasicIcfg [2021-07-01 12:35:22,331 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-01 12:35:22,332 INFO L168 Benchmark]: Toolchain (without parser) took 3948.04 ms. Allocated memory was 174.1 MB in the beginning and 312.5 MB in the end (delta: 138.4 MB). Free memory was 153.7 MB in the beginning and 202.2 MB in the end (delta: -48.5 MB). Peak memory consumption was 91.0 MB. Max. memory is 8.0 GB. [2021-07-01 12:35:22,332 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.12 ms. Allocated memory is still 174.1 MB. Free memory is still 154.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-07-01 12:35:22,332 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.66 ms. Allocated memory is still 174.1 MB. Free memory was 153.6 MB in the beginning and 151.8 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-07-01 12:35:22,332 INFO L168 Benchmark]: Boogie Preprocessor took 15.27 ms. Allocated memory is still 174.1 MB. Free memory was 151.8 MB in the beginning and 150.9 MB in the end (delta: 887.6 kB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-07-01 12:35:22,333 INFO L168 Benchmark]: RCFGBuilder took 324.58 ms. Allocated memory is still 174.1 MB. Free memory was 150.8 MB in the beginning and 136.6 MB in the end (delta: 14.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. [2021-07-01 12:35:22,333 INFO L168 Benchmark]: TraceAbstraction took 3550.95 ms. Allocated memory was 174.1 MB in the beginning and 312.5 MB in the end (delta: 138.4 MB). Free memory was 136.2 MB in the beginning and 202.2 MB in the end (delta: -66.0 MB). Peak memory consumption was 73.2 MB. Max. memory is 8.0 GB. [2021-07-01 12:35:22,334 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.12 ms. Allocated memory is still 174.1 MB. Free memory is still 154.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 42.66 ms. Allocated memory is still 174.1 MB. Free memory was 153.6 MB in the beginning and 151.8 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 8.0 GB. * Boogie Preprocessor took 15.27 ms. Allocated memory is still 174.1 MB. Free memory was 151.8 MB in the beginning and 150.9 MB in the end (delta: 887.6 kB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 324.58 ms. Allocated memory is still 174.1 MB. Free memory was 150.8 MB in the beginning and 136.6 MB in the end (delta: 14.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3550.95 ms. Allocated memory was 174.1 MB in the beginning and 312.5 MB in the end (delta: 138.4 MB). Free memory was 136.2 MB in the beginning and 202.2 MB in the end (delta: -66.0 MB). Peak memory consumption was 73.2 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: 972, positive: 957, positive conditional: 76, positive unconditional: 881, negative: 15, negative conditional: 10, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 962, positive: 957, positive conditional: 76, positive unconditional: 881, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 962, positive: 957, positive conditional: 0, positive unconditional: 957, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 746, positive: 741, positive conditional: 0, positive unconditional: 741, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 746, positive: 736, positive conditional: 0, positive unconditional: 736, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 10, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 10, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 54, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 49, negative conditional: 0, negative unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 962, positive: 216, positive conditional: 0, positive unconditional: 216, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 746, unknown conditional: 0, unknown unconditional: 746] , Statistics on independence cache: Total cache size (in pairs): 746, Positive cache size: 741, Positive conditional cache size: 0, Positive unconditional cache size: 741, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 ], Maximal queried relation: 0, Independence queries for same thread: 10 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 89, Number of persistent set computation: 20, Number of trivial persistent sets: 15, Underlying independence relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 972, positive: 957, positive conditional: 76, positive unconditional: 881, negative: 15, negative conditional: 10, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 962, positive: 957, positive conditional: 76, positive unconditional: 881, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 962, positive: 957, positive conditional: 0, positive unconditional: 957, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 746, positive: 741, positive conditional: 0, positive unconditional: 741, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 746, positive: 736, positive conditional: 0, positive unconditional: 736, negative: 10, negative conditional: 0, negative unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 10, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 10, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 5, negative conditional: 0, negative unconditional: 5, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 54, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 49, negative conditional: 0, negative unconditional: 49, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 962, positive: 216, positive conditional: 0, positive unconditional: 216, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 746, unknown conditional: 0, unknown unconditional: 746] , Statistics on independence cache: Total cache size (in pairs): 746, Positive cache size: 741, Positive conditional cache size: 0, Positive unconditional cache size: 741, Negative cache size: 5, Negative conditional cache size: 0, Negative unconditional cache size: 5 ], Maximal queried relation: 0, Independence queries for same thread: 10 - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 47547, positive: 45622, positive conditional: 43996, positive unconditional: 1626, negative: 1925, negative conditional: 1852, negative unconditional: 73, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 46093, positive: 45622, positive conditional: 43996, positive unconditional: 1626, negative: 471, negative conditional: 398, negative unconditional: 73, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 46093, positive: 43547, positive conditional: 0, positive unconditional: 43547, negative: 2546, negative conditional: 0, negative unconditional: 2546, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1022, positive: 972, positive conditional: 0, positive unconditional: 972, negative: 50, negative conditional: 0, negative unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1022, positive: 927, positive conditional: 0, positive unconditional: 927, negative: 95, negative conditional: 0, negative unconditional: 95, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 95, positive: 45, positive conditional: 0, positive unconditional: 45, negative: 50, negative conditional: 0, negative unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 153, positive: 101, positive conditional: 56, positive unconditional: 45, negative: 52, negative conditional: 2, negative unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 313, positive: 171, positive conditional: 77, positive unconditional: 94, negative: 142, negative conditional: 3, negative unconditional: 140, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 46093, positive: 42575, positive conditional: 0, positive unconditional: 42575, negative: 2496, negative conditional: 0, negative unconditional: 2496, unknown: 1022, unknown conditional: 0, unknown unconditional: 1022] , Statistics on independence cache: Total cache size (in pairs): 1080, Positive cache size: 1028, Positive conditional cache size: 56, Positive unconditional cache size: 972, Negative cache size: 52, Negative conditional cache size: 2, Negative unconditional cache size: 50, SemanticConditionEliminator.Independence Queries: [ total: 7549, positive: 2075, positive conditional: 2075, positive unconditional: 0, negative: 5474, negative conditional: 3, negative unconditional: 5471, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 7549, positive: 2075, positive conditional: 2075, positive unconditional: 0, negative: 5474, negative conditional: 3, negative unconditional: 5471, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 153, positive: 101, positive conditional: 56, positive unconditional: 45, negative: 52, negative conditional: 2, negative unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 313, positive: 171, positive conditional: 77, positive unconditional: 94, negative: 142, negative conditional: 3, negative unconditional: 140, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 7549, positive: 2019, positive conditional: 2019, positive unconditional: 0, negative: 5472, negative conditional: 1, negative unconditional: 5471, unknown: 58, unknown conditional: 58, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1080, Positive cache size: 1028, Positive conditional cache size: 56, Positive unconditional cache size: 972, Negative cache size: 52, Negative conditional cache size: 2, Negative unconditional cache size: 50, Eliminated conditions: 5333, SemanticConditionEliminator.Independence Queries: [ total: 7549, positive: 2075, positive conditional: 2075, positive unconditional: 0, negative: 5474, negative conditional: 3, negative unconditional: 5471, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 7549, positive: 2075, positive conditional: 2075, positive unconditional: 0, negative: 5474, negative conditional: 3, negative unconditional: 5471, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 153, positive: 101, positive conditional: 56, positive unconditional: 45, negative: 52, negative conditional: 2, negative unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 313, positive: 171, positive conditional: 77, positive unconditional: 94, negative: 142, negative conditional: 3, negative unconditional: 140, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 7549, positive: 2019, positive conditional: 2019, positive unconditional: 0, negative: 5472, negative conditional: 1, negative unconditional: 5471, unknown: 58, unknown conditional: 58, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1080, Positive cache size: 1028, Positive conditional cache size: 56, Positive unconditional cache size: 972, Negative cache size: 52, Negative conditional cache size: 2, Negative unconditional cache size: 50, Eliminated conditions: 5333, SemanticConditionEliminator.Independence Queries: [ total: 7549, positive: 2075, positive conditional: 2075, positive unconditional: 0, negative: 5474, negative conditional: 3, negative unconditional: 5471, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 7549, positive: 2075, positive conditional: 2075, positive unconditional: 0, negative: 5474, negative conditional: 3, negative unconditional: 5471, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 153, positive: 101, positive conditional: 56, positive unconditional: 45, negative: 52, negative conditional: 2, negative unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 313, positive: 171, positive conditional: 77, positive unconditional: 94, negative: 142, negative conditional: 3, negative unconditional: 140, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 7549, positive: 2019, positive conditional: 2019, positive unconditional: 0, negative: 5472, negative conditional: 1, negative unconditional: 5471, unknown: 58, unknown conditional: 58, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1080, Positive cache size: 1028, Positive conditional cache size: 56, Positive unconditional cache size: 972, Negative cache size: 52, Negative conditional cache size: 2, Negative unconditional cache size: 50, Eliminated conditions: 5333 ], Maximal queried relation: 3, Independence queries for same thread: 1454 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 1661, Number of persistent set computation: 16973, Number of trivial persistent sets: 15866, Underlying independence relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 47547, positive: 45622, positive conditional: 43996, positive unconditional: 1626, negative: 1925, negative conditional: 1852, negative unconditional: 73, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 46093, positive: 45622, positive conditional: 43996, positive unconditional: 1626, negative: 471, negative conditional: 398, negative unconditional: 73, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 46093, positive: 43547, positive conditional: 0, positive unconditional: 43547, negative: 2546, negative conditional: 0, negative unconditional: 2546, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1022, positive: 972, positive conditional: 0, positive unconditional: 972, negative: 50, negative conditional: 0, negative unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1022, positive: 927, positive conditional: 0, positive unconditional: 927, negative: 95, negative conditional: 0, negative unconditional: 95, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 95, positive: 45, positive conditional: 0, positive unconditional: 45, negative: 50, negative conditional: 0, negative unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 153, positive: 101, positive conditional: 56, positive unconditional: 45, negative: 52, negative conditional: 2, negative unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 313, positive: 171, positive conditional: 77, positive unconditional: 94, negative: 142, negative conditional: 3, negative unconditional: 140, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 46093, positive: 42575, positive conditional: 0, positive unconditional: 42575, negative: 2496, negative conditional: 0, negative unconditional: 2496, unknown: 1022, unknown conditional: 0, unknown unconditional: 1022] , Statistics on independence cache: Total cache size (in pairs): 1080, Positive cache size: 1028, Positive conditional cache size: 56, Positive unconditional cache size: 972, Negative cache size: 52, Negative conditional cache size: 2, Negative unconditional cache size: 50, SemanticConditionEliminator.Independence Queries: [ total: 7549, positive: 2075, positive conditional: 2075, positive unconditional: 0, negative: 5474, negative conditional: 3, negative unconditional: 5471, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 7549, positive: 2075, positive conditional: 2075, positive unconditional: 0, negative: 5474, negative conditional: 3, negative unconditional: 5471, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 153, positive: 101, positive conditional: 56, positive unconditional: 45, negative: 52, negative conditional: 2, negative unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 313, positive: 171, positive conditional: 77, positive unconditional: 94, negative: 142, negative conditional: 3, negative unconditional: 140, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 7549, positive: 2019, positive conditional: 2019, positive unconditional: 0, negative: 5472, negative conditional: 1, negative unconditional: 5471, unknown: 58, unknown conditional: 58, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1080, Positive cache size: 1028, Positive conditional cache size: 56, Positive unconditional cache size: 972, Negative cache size: 52, Negative conditional cache size: 2, Negative unconditional cache size: 50, Eliminated conditions: 5333, SemanticConditionEliminator.Independence Queries: [ total: 7549, positive: 2075, positive conditional: 2075, positive unconditional: 0, negative: 5474, negative conditional: 3, negative unconditional: 5471, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 7549, positive: 2075, positive conditional: 2075, positive unconditional: 0, negative: 5474, negative conditional: 3, negative unconditional: 5471, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 153, positive: 101, positive conditional: 56, positive unconditional: 45, negative: 52, negative conditional: 2, negative unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 313, positive: 171, positive conditional: 77, positive unconditional: 94, negative: 142, negative conditional: 3, negative unconditional: 140, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 7549, positive: 2019, positive conditional: 2019, positive unconditional: 0, negative: 5472, negative conditional: 1, negative unconditional: 5471, unknown: 58, unknown conditional: 58, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1080, Positive cache size: 1028, Positive conditional cache size: 56, Positive unconditional cache size: 972, Negative cache size: 52, Negative conditional cache size: 2, Negative unconditional cache size: 50, Eliminated conditions: 5333, SemanticConditionEliminator.Independence Queries: [ total: 7549, positive: 2075, positive conditional: 2075, positive unconditional: 0, negative: 5474, negative conditional: 3, negative unconditional: 5471, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 7549, positive: 2075, positive conditional: 2075, positive unconditional: 0, negative: 5474, negative conditional: 3, negative unconditional: 5471, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 153, positive: 101, positive conditional: 56, positive unconditional: 45, negative: 52, negative conditional: 2, negative unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 313, positive: 171, positive conditional: 77, positive unconditional: 94, negative: 142, negative conditional: 3, negative unconditional: 140, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 7549, positive: 2019, positive conditional: 2019, positive unconditional: 0, negative: 5472, negative conditional: 1, negative unconditional: 5471, unknown: 58, unknown conditional: 58, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 1080, Positive cache size: 1028, Positive conditional cache size: 56, Positive unconditional cache size: 972, Negative cache size: 52, Negative conditional cache size: 2, Negative unconditional cache size: 50, Eliminated conditions: 5333 ], Maximal queried relation: 3, Independence queries for same thread: 1454 - CounterExampleResult [Line: 38]: assertion can be violated assertion can be violated We found a FailurePath: [L14] 0 pendingIo := 1; VAL [pendingIo=1] [L15] 0 stopped := false; VAL [pendingIo=1, stopped=false] [L16] 0 stoppingEvent := false; VAL [pendingIo=1, stopped=false, stoppingEvent=false] [L17] 0 stoppingFlag := false; VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L19] FORK 0 fork 0 ServerThread(); VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L21] FORK 0 fork 1 DeviceThreadWithAssert(); VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L60] 2 assume !stoppingFlag; VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L82] 1 stoppingFlag := true; VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=true] [L92] 1 pendingIo := pendingIo - 1; [L93] COND TRUE 1 pendingIo == 0 [L94] 1 stoppingEvent := true; VAL [pendingIo=0, stopped=false, stoppingEvent=true, stoppingFlag=true] [L61] 2 pendingIo := pendingIo + 1; VAL [pendingIo=1, stopped=false, stoppingEvent=true, stoppingFlag=true] [L84] 1 assume stoppingEvent; VAL [pendingIo=1, stopped=false, stoppingEvent=true, stoppingFlag=true] [L85] 1 stopped := true; VAL [pendingIo=1, stopped=true, stoppingEvent=true, stoppingFlag=true] [L38] 2 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 10 procedures, 62 locations, 8 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 232.3ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 20.2ms, PartialOrderReductionTime: 119.5ms, 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: DeviceThreadWithAssertThread1of1ForFork1 with 1 thread instances CFG has 10 procedures, 62 locations, 8 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 3168.4ms, OverallIterations: 4, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1.4ms, PartialOrderReductionTime: 2474.8ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 10.4ms SsaConstructionTime, 33.6ms SatisfiabilityAnalysisTime, 236.8ms InterpolantComputationTime, 86 NumberOfCodeBlocks, 86 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 69 ConstructedInterpolants, 0 QuantifiedInterpolants, 268 SizeOfPredicates, 1 NumberOfNonLiveVariables, 43 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 6/16 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...