/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth04-incorrect.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d310483fe8b4879eee5de19363f50e4b839cc4ec-d310483 [2021-06-24 21:01:48,151 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-24 21:01:48,153 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-24 21:01:48,185 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-24 21:01:48,271 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-NoLbe.epf [2021-06-24 21:01:48,312 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-24 21:01:48,312 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-24 21:01:48,312 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-24 21:01:48,313 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-24 21:01:48,315 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-24 21:01:48,315 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-24 21:01:48,315 INFO L138 SettingsManager]: * Use SBE=true [2021-06-24 21:01:48,315 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-24 21:01:48,315 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-24 21:01:48,316 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-24 21:01:48,316 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-24 21:01:48,316 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-24 21:01:48,317 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-24 21:01:48,317 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-24 21:01:48,317 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-24 21:01:48,317 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-24 21:01:48,317 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-24 21:01:48,317 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-24 21:01:48,317 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-24 21:01:48,317 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-24 21:01:48,318 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-24 21:01:48,318 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-24 21:01:48,318 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-24 21:01:48,318 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-24 21:01:48,318 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-24 21:01:48,318 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-24 21:01:48,318 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-24 21:01:48,318 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-24 21:01:48,318 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-24 21:01:48,319 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-24 21:01:48,319 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-24 21:01:48,319 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-24 21:01:48,319 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-06-24 21:01:48,319 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-24 21:01:48,578 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-24 21:01:48,595 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-24 21:01:48,597 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-24 21:01:48,598 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-24 21:01:48,599 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-24 21:01:48,600 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth04-incorrect.bpl [2021-06-24 21:01:48,600 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth04-incorrect.bpl' [2021-06-24 21:01:48,628 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-24 21:01:48,630 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-24 21:01:48,631 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-24 21:01:48,631 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-24 21:01:48,631 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-24 21:01:48,640 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "bluetooth04-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 09:01:48" (1/1) ... [2021-06-24 21:01:48,645 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "bluetooth04-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 09:01:48" (1/1) ... [2021-06-24 21:01:48,657 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-24 21:01:48,659 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-24 21:01:48,659 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-24 21:01:48,659 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-24 21:01:48,664 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "bluetooth04-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 09:01:48" (1/1) ... [2021-06-24 21:01:48,664 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "bluetooth04-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 09:01:48" (1/1) ... [2021-06-24 21:01:48,665 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "bluetooth04-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 09:01:48" (1/1) ... [2021-06-24 21:01:48,666 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "bluetooth04-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 09:01:48" (1/1) ... [2021-06-24 21:01:48,667 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "bluetooth04-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 09:01:48" (1/1) ... [2021-06-24 21:01:48,670 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "bluetooth04-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 09:01:48" (1/1) ... [2021-06-24 21:01:48,670 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "bluetooth04-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 09:01:48" (1/1) ... [2021-06-24 21:01:48,671 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-24 21:01:48,673 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-24 21:01:48,673 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-24 21:01:48,673 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-24 21:01:48,674 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "bluetooth04-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 09:01:48" (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 21:01:48,743 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThread given in one single declaration [2021-06-24 21:01:48,744 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThread [2021-06-24 21:01:48,744 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThread [2021-06-24 21:01:48,744 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ServerThread given in one single declaration [2021-06-24 21:01:48,744 INFO L130 BoogieDeclarations]: Found specification of procedure ServerThread [2021-06-24 21:01:48,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ServerThread [2021-06-24 21:01:48,744 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-24 21:01:48,744 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-24 21:01:48,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-24 21:01:48,746 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-24 21:01:48,912 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-24 21:01:48,913 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-06-24 21:01:48,914 INFO L202 PluginConnector]: Adding new model bluetooth04-incorrect.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 09:01:48 BoogieIcfgContainer [2021-06-24 21:01:48,914 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-24 21:01:48,916 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-24 21:01:48,916 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-24 21:01:48,918 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-24 21:01:48,918 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth04-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 09:01:48" (1/2) ... [2021-06-24 21:01:48,918 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43d69936 and model type bluetooth04-incorrect.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.06 09:01:48, skipping insertion in model container [2021-06-24 21:01:48,918 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth04-incorrect.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 09:01:48" (2/2) ... [2021-06-24 21:01:48,919 INFO L111 eAbstractionObserver]: Analyzing ICFG bluetooth04-incorrect.bpl [2021-06-24 21:01:48,923 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-24 21:01:48,923 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-24 21:01:48,924 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-24 21:01:48,924 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-24 21:01:48,948 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-24 21:01:48,964 INFO L255 AbstractCegarLoop]: Starting to check reachability of 5 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-06-24 21:01:49,018 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-24 21:01:49,018 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-24 21:01:49,018 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-24 21:01:49,018 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-24 21:01:49,018 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-24 21:01:49,018 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-24 21:01:49,018 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-24 21:01:49,018 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-24 21:01:49,176 INFO L301 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE (1/5) [2021-06-24 21:01:49,178 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 21:01:49,227 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-24 21:01:49,227 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-24 21:01:49,227 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-24 21:01:49,227 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-24 21:01:49,227 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-24 21:01:49,227 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-24 21:01:49,227 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-24 21:01:49,227 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == DeviceThreadThread1of1ForFork4======== [2021-06-24 21:01:49,415 INFO L430 AbstractCegarLoop]: === Iteration 1 === [DeviceThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-06-24 21:01:49,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-24 21:01:49,420 INFO L82 PathProgramCache]: Analyzing trace with hash 687303971, now seen corresponding path program 1 times [2021-06-24 21:01:49,427 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-24 21:01:49,427 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038667645] [2021-06-24 21:01:49,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-24 21:01:49,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-24 21:01:49,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-24 21:01:49,527 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-24 21:01:49,527 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038667645] [2021-06-24 21:01:49,528 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038667645] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-24 21:01:49,528 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-24 21:01:49,528 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-24 21:01:49,529 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304168262] [2021-06-24 21:01:49,533 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-24 21:01:49,534 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-24 21:01:49,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-24 21:01:49,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-24 21:01:49,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-24 21:01:49,545 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-24 21:01:49,546 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-24 21:01:49,546 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-24 21:01:49,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 21:01:49,779 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-24 21:01:49,779 INFO L430 AbstractCegarLoop]: === Iteration 2 === [DeviceThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-06-24 21:01:49,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-24 21:01:49,785 INFO L82 PathProgramCache]: Analyzing trace with hash -321557485, now seen corresponding path program 1 times [2021-06-24 21:01:49,786 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-24 21:01:49,786 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718528160] [2021-06-24 21:01:49,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-24 21:01:49,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-24 21:01:49,812 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-24 21:01:49,812 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-24 21:01:49,813 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718528160] [2021-06-24 21:01:49,813 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718528160] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-24 21:01:49,814 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-24 21:01:49,814 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-24 21:01:49,815 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009616245] [2021-06-24 21:01:49,816 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-24 21:01:49,816 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-24 21:01:49,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-24 21:01:49,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-24 21:01:49,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-24 21:01:49,817 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-24 21:01:49,817 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 21:01:49,817 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-24 21:01:49,817 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-24 21:01:49,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 21:01:49,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 21:01:49,931 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-24 21:01:49,931 INFO L430 AbstractCegarLoop]: === Iteration 3 === [DeviceThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-06-24 21:01:49,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-24 21:01:49,931 INFO L82 PathProgramCache]: Analyzing trace with hash -230756895, now seen corresponding path program 1 times [2021-06-24 21:01:49,931 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-24 21:01:49,932 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967024213] [2021-06-24 21:01:49,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-24 21:01:49,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-24 21:01:50,062 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-06-24 21:01:50,062 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-24 21:01:50,063 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967024213] [2021-06-24 21:01:50,063 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967024213] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-24 21:01:50,063 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-24 21:01:50,063 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-06-24 21:01:50,063 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503209178] [2021-06-24 21:01:50,064 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-06-24 21:01:50,064 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-24 21:01:50,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-06-24 21:01:50,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-06-24 21:01:50,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-24 21:01:50,064 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-24 21:01:50,064 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 5.333333333333333) internal successors, (32), 5 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-24 21:01:50,065 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-24 21:01:50,065 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-24 21:01:50,065 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-24 21:01:50,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 21:01:50,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 21:01:50,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-06-24 21:01:50,178 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-24 21:01:50,179 INFO L430 AbstractCegarLoop]: === Iteration 4 === [DeviceThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-06-24 21:01:50,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-24 21:01:50,180 INFO L82 PathProgramCache]: Analyzing trace with hash 399917401, now seen corresponding path program 2 times [2021-06-24 21:01:50,180 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-24 21:01:50,180 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847042827] [2021-06-24 21:01:50,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-24 21:01:50,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-24 21:01:50,203 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-24 21:01:50,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-24 21:01:50,210 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-24 21:01:50,221 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-06-24 21:01:50,222 INFO L605 BasicCegarLoop]: Counterexample might be feasible [2021-06-24 21:01:50,222 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-24 21:01:50,224 INFO L301 ceAbstractionStarter]: Result for error location DeviceThreadThread1of1ForFork4 was UNSAFE (2/5) [2021-06-24 21:01:50,262 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-24 21:01:50,277 INFO L202 PluginConnector]: Adding new model bluetooth04-incorrect.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.06 09:01:50 BasicIcfg [2021-06-24 21:01:50,278 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-24 21:01:50,278 INFO L168 Benchmark]: Toolchain (without parser) took 1648.01 ms. Allocated memory was 197.1 MB in the beginning and 250.6 MB in the end (delta: 53.5 MB). Free memory was 176.6 MB in the beginning and 229.7 MB in the end (delta: -53.1 MB). Peak memory consumption was 38.8 MB. Max. memory is 8.0 GB. [2021-06-24 21:01:50,279 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.12 ms. Allocated memory is still 197.1 MB. Free memory is still 177.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-06-24 21:01:50,279 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.99 ms. Allocated memory is still 197.1 MB. Free memory was 176.4 MB in the beginning and 174.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-06-24 21:01:50,279 INFO L168 Benchmark]: Boogie Preprocessor took 13.00 ms. Allocated memory is still 197.1 MB. Free memory was 174.7 MB in the beginning and 173.7 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-06-24 21:01:50,279 INFO L168 Benchmark]: RCFGBuilder took 241.54 ms. Allocated memory is still 197.1 MB. Free memory was 173.7 MB in the beginning and 161.3 MB in the end (delta: 12.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-06-24 21:01:50,280 INFO L168 Benchmark]: TraceAbstraction took 1362.14 ms. Allocated memory was 197.1 MB in the beginning and 250.6 MB in the end (delta: 53.5 MB). Free memory was 160.9 MB in the beginning and 229.7 MB in the end (delta: -68.8 MB). Peak memory consumption was 23.0 MB. Max. memory is 8.0 GB. [2021-06-24 21:01:50,285 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 197.1 MB. Free memory is still 177.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 26.99 ms. Allocated memory is still 197.1 MB. Free memory was 176.4 MB in the beginning and 174.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 13.00 ms. Allocated memory is still 197.1 MB. Free memory was 174.7 MB in the beginning and 173.7 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 241.54 ms. Allocated memory is still 197.1 MB. Free memory was 173.7 MB in the beginning and 161.3 MB in the end (delta: 12.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1362.14 ms. Allocated memory was 197.1 MB in the beginning and 250.6 MB in the end (delta: 53.5 MB). Free memory was 160.9 MB in the beginning and 229.7 MB in the end (delta: -68.8 MB). Peak memory consumption was 23.0 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: 719, positive: 709, positive conditional: 37, positive unconditional: 672, negative: 10, negative conditional: 6, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 713, positive: 709, positive conditional: 37, positive unconditional: 672, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 713, positive: 709, positive conditional: 0, positive unconditional: 709, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 608, positive: 604, positive conditional: 0, positive unconditional: 604, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 608, positive: 600, positive conditional: 0, positive unconditional: 600, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 8, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 8, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 54, positive: 14, positive conditional: 0, positive unconditional: 14, negative: 40, negative conditional: 0, negative unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 713, positive: 105, positive conditional: 0, positive unconditional: 105, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 608, unknown conditional: 0, unknown unconditional: 608] , Statistics on independence cache: Total cache size (in pairs): 608, Positive cache size: 604, Positive conditional cache size: 0, Positive unconditional cache size: 604, Negative cache size: 4, Negative conditional cache size: 0, Negative unconditional cache size: 4 ], Maximal queried relation: 0, Independence queries for same thread: 6 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 105, Number of persistent set computation: 14, Number of trivial persistent sets: 10, Underlying independence relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 719, positive: 709, positive conditional: 37, positive unconditional: 672, negative: 10, negative conditional: 6, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 713, positive: 709, positive conditional: 37, positive unconditional: 672, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 713, positive: 709, positive conditional: 0, positive unconditional: 709, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 608, positive: 604, positive conditional: 0, positive unconditional: 604, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 608, positive: 600, positive conditional: 0, positive unconditional: 600, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 8, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 8, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 54, positive: 14, positive conditional: 0, positive unconditional: 14, negative: 40, negative conditional: 0, negative unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 713, positive: 105, positive conditional: 0, positive unconditional: 105, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 608, unknown conditional: 0, unknown unconditional: 608] , Statistics on independence cache: Total cache size (in pairs): 608, Positive cache size: 604, Positive conditional cache size: 0, Positive unconditional cache size: 604, Negative cache size: 4, Negative conditional cache size: 0, Negative unconditional cache size: 4 ], Maximal queried relation: 0, Independence queries for same thread: 6 - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 4214, positive: 3999, positive conditional: 2814, positive unconditional: 1185, negative: 215, negative conditional: 175, negative unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 4054, positive: 3999, positive conditional: 2814, positive unconditional: 1185, negative: 55, negative conditional: 15, negative unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 4054, positive: 3999, positive conditional: 0, positive unconditional: 3999, negative: 55, negative conditional: 0, negative unconditional: 55, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 887, positive: 851, positive conditional: 0, positive unconditional: 851, negative: 36, negative conditional: 0, negative unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 887, positive: 828, positive conditional: 0, positive unconditional: 828, negative: 59, negative conditional: 0, negative unconditional: 59, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 59, positive: 23, positive conditional: 0, positive unconditional: 23, negative: 36, negative conditional: 0, negative unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 61, positive: 23, positive conditional: 0, positive unconditional: 23, negative: 38, negative conditional: 2, negative unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 191, positive: 58, positive conditional: 0, positive unconditional: 58, negative: 133, negative conditional: 3, negative unconditional: 130, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4054, positive: 3148, positive conditional: 0, positive unconditional: 3148, negative: 19, negative conditional: 0, negative unconditional: 19, unknown: 887, unknown conditional: 0, unknown unconditional: 887] , Statistics on independence cache: Total cache size (in pairs): 889, Positive cache size: 851, Positive conditional cache size: 0, Positive unconditional cache size: 851, Negative cache size: 38, Negative conditional cache size: 2, Negative unconditional cache size: 36, SemanticConditionEliminator.Independence Queries: [ total: 61, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 61, negative conditional: 3, negative unconditional: 58, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 61, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 61, negative conditional: 3, negative unconditional: 58, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 61, positive: 23, positive conditional: 0, positive unconditional: 23, negative: 38, negative conditional: 2, negative unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 191, positive: 58, positive conditional: 0, positive unconditional: 58, negative: 133, negative conditional: 3, negative unconditional: 130, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 61, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 59, negative conditional: 1, negative unconditional: 58, unknown: 2, unknown conditional: 2, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 889, Positive cache size: 851, Positive conditional cache size: 0, Positive unconditional cache size: 851, Negative cache size: 38, Negative conditional cache size: 2, Negative unconditional cache size: 36, Eliminated conditions: 29, SemanticConditionEliminator.Independence Queries: [ total: 61, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 61, negative conditional: 3, negative unconditional: 58, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 61, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 61, negative conditional: 3, negative unconditional: 58, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 61, positive: 23, positive conditional: 0, positive unconditional: 23, negative: 38, negative conditional: 2, negative unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 191, positive: 58, positive conditional: 0, positive unconditional: 58, negative: 133, negative conditional: 3, negative unconditional: 130, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 61, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 59, negative conditional: 1, negative unconditional: 58, unknown: 2, unknown conditional: 2, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 889, Positive cache size: 851, Positive conditional cache size: 0, Positive unconditional cache size: 851, Negative cache size: 38, Negative conditional cache size: 2, Negative unconditional cache size: 36, Eliminated conditions: 29, SemanticConditionEliminator.Independence Queries: [ total: 61, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 61, negative conditional: 3, negative unconditional: 58, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 61, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 61, negative conditional: 3, negative unconditional: 58, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 61, positive: 23, positive conditional: 0, positive unconditional: 23, negative: 38, negative conditional: 2, negative unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 191, positive: 58, positive conditional: 0, positive unconditional: 58, negative: 133, negative conditional: 3, negative unconditional: 130, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 61, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 59, negative conditional: 1, negative unconditional: 58, unknown: 2, unknown conditional: 2, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 889, Positive cache size: 851, Positive conditional cache size: 0, Positive unconditional cache size: 851, Negative cache size: 38, Negative conditional cache size: 2, Negative unconditional cache size: 36, Eliminated conditions: 29 ], Maximal queried relation: 3, Independence queries for same thread: 160 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 432, Number of persistent set computation: 1431, Number of trivial persistent sets: 1261, Underlying independence relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 4214, positive: 3999, positive conditional: 2814, positive unconditional: 1185, negative: 215, negative conditional: 175, negative unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 4054, positive: 3999, positive conditional: 2814, positive unconditional: 1185, negative: 55, negative conditional: 15, negative unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 4054, positive: 3999, positive conditional: 0, positive unconditional: 3999, negative: 55, negative conditional: 0, negative unconditional: 55, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 887, positive: 851, positive conditional: 0, positive unconditional: 851, negative: 36, negative conditional: 0, negative unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 887, positive: 828, positive conditional: 0, positive unconditional: 828, negative: 59, negative conditional: 0, negative unconditional: 59, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 59, positive: 23, positive conditional: 0, positive unconditional: 23, negative: 36, negative conditional: 0, negative unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 61, positive: 23, positive conditional: 0, positive unconditional: 23, negative: 38, negative conditional: 2, negative unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 191, positive: 58, positive conditional: 0, positive unconditional: 58, negative: 133, negative conditional: 3, negative unconditional: 130, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 4054, positive: 3148, positive conditional: 0, positive unconditional: 3148, negative: 19, negative conditional: 0, negative unconditional: 19, unknown: 887, unknown conditional: 0, unknown unconditional: 887] , Statistics on independence cache: Total cache size (in pairs): 889, Positive cache size: 851, Positive conditional cache size: 0, Positive unconditional cache size: 851, Negative cache size: 38, Negative conditional cache size: 2, Negative unconditional cache size: 36, SemanticConditionEliminator.Independence Queries: [ total: 61, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 61, negative conditional: 3, negative unconditional: 58, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 61, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 61, negative conditional: 3, negative unconditional: 58, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 61, positive: 23, positive conditional: 0, positive unconditional: 23, negative: 38, negative conditional: 2, negative unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 191, positive: 58, positive conditional: 0, positive unconditional: 58, negative: 133, negative conditional: 3, negative unconditional: 130, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 61, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 59, negative conditional: 1, negative unconditional: 58, unknown: 2, unknown conditional: 2, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 889, Positive cache size: 851, Positive conditional cache size: 0, Positive unconditional cache size: 851, Negative cache size: 38, Negative conditional cache size: 2, Negative unconditional cache size: 36, Eliminated conditions: 29, SemanticConditionEliminator.Independence Queries: [ total: 61, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 61, negative conditional: 3, negative unconditional: 58, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 61, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 61, negative conditional: 3, negative unconditional: 58, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 61, positive: 23, positive conditional: 0, positive unconditional: 23, negative: 38, negative conditional: 2, negative unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 191, positive: 58, positive conditional: 0, positive unconditional: 58, negative: 133, negative conditional: 3, negative unconditional: 130, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 61, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 59, negative conditional: 1, negative unconditional: 58, unknown: 2, unknown conditional: 2, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 889, Positive cache size: 851, Positive conditional cache size: 0, Positive unconditional cache size: 851, Negative cache size: 38, Negative conditional cache size: 2, Negative unconditional cache size: 36, Eliminated conditions: 29, SemanticConditionEliminator.Independence Queries: [ total: 61, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 61, negative conditional: 3, negative unconditional: 58, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 61, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 61, negative conditional: 3, negative unconditional: 58, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 61, positive: 23, positive conditional: 0, positive unconditional: 23, negative: 38, negative conditional: 2, negative unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 191, positive: 58, positive conditional: 0, positive unconditional: 58, negative: 133, negative conditional: 3, negative unconditional: 130, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 61, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 59, negative conditional: 1, negative unconditional: 58, unknown: 2, unknown conditional: 2, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 889, Positive cache size: 851, Positive conditional cache size: 0, Positive unconditional cache size: 851, Negative cache size: 38, Negative conditional cache size: 2, Negative unconditional cache size: 36, Eliminated conditions: 29 ], Maximal queried relation: 3, Independence queries for same thread: 160 - CounterExampleResult [Line: 35]: 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] [L45] 2 assume !stoppingFlag; VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L46] 2 pendingIo := pendingIo + 1; VAL [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=false] [L35] 2 assert !stopped; VAL [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=false] [L54] 2 pendingIo := pendingIo - 1; [L55] COND FALSE 2 !(pendingIo == 0) VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L20] FORK 0 fork 2 DeviceThread(); VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L45] 3 assume !stoppingFlag; VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L46] 3 pendingIo := pendingIo + 1; VAL [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=false] [L35] 3 assert !stopped; VAL [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=false] [L54] 3 pendingIo := pendingIo - 1; [L55] COND FALSE 3 !(pendingIo == 0) VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L21] FORK 0 fork 3 DeviceThread(); VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L45] 4 assume !stoppingFlag; VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L46] 4 pendingIo := pendingIo + 1; VAL [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=false] [L35] 4 assert !stopped; VAL [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=false] [L54] 4 pendingIo := pendingIo - 1; [L55] COND FALSE 4 !(pendingIo == 0) VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L22] FORK 0 fork 4 DeviceThread(); VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L45] 5 assume !stoppingFlag; VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L67] 1 stoppingFlag := true; VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=true] [L77] 1 pendingIo := pendingIo - 1; [L78] COND TRUE 1 pendingIo == 0 [L79] 1 stoppingEvent := true; VAL [pendingIo=0, stopped=false, stoppingEvent=true, stoppingFlag=true] [L46] 5 pendingIo := pendingIo + 1; VAL [pendingIo=1, stopped=false, stoppingEvent=true, stoppingFlag=true] [L69] 1 assume stoppingEvent; VAL [pendingIo=1, stopped=false, stoppingEvent=true, stoppingFlag=true] [L70] 1 stopped := true; VAL [pendingIo=1, stopped=true, stoppingEvent=true, stoppingFlag=true] [L35] 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 8 procedures, 58 locations, 10 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 200.4ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 9.3ms, PartialOrderReductionTime: 140.2ms, 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 8 procedures, 58 locations, 10 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1037.7ms, OverallIterations: 4, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1.2ms, PartialOrderReductionTime: 645.3ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 11, 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: 7.7ms SsaConstructionTime, 60.4ms SatisfiabilityAnalysisTime, 160.2ms InterpolantComputationTime, 111 NumberOfCodeBlocks, 111 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 76 ConstructedInterpolants, 0 QuantifiedInterpolants, 218 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 3/3 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...