/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-Lockstep.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth08-incorrect.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d310483fe8b4879eee5de19363f50e4b839cc4ec-d310483 [2021-06-24 21:13:14,802 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-24 21:13:14,804 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-24 21:13:14,822 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-24 21:13:14,822 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-24 21:13:14,825 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-24 21:13:14,827 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-24 21:13:14,832 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-24 21:13:14,833 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-24 21:13:14,833 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-24 21:13:14,834 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-24 21:13:14,835 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2021-06-24 21:13:14,851 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-24 21:13:14,867 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-24 21:13:14,869 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-24 21:13:14,869 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-Lockstep.epf [2021-06-24 21:13:14,899 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-24 21:13:14,899 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-24 21:13:14,899 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-24 21:13:14,900 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-24 21:13:14,900 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-24 21:13:14,901 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-24 21:13:14,901 INFO L138 SettingsManager]: * Use SBE=true [2021-06-24 21:13:14,901 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-24 21:13:14,901 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-24 21:13:14,901 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-24 21:13:14,901 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-24 21:13:14,901 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-24 21:13:14,901 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-24 21:13:14,901 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-24 21:13:14,902 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-24 21:13:14,902 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-24 21:13:14,902 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-24 21:13:14,902 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-24 21:13:14,902 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-24 21:13:14,902 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-24 21:13:14,902 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-24 21:13:14,902 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-24 21:13:14,903 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-24 21:13:14,903 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-24 21:13:14,903 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-24 21:13:14,903 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-24 21:13:14,903 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-24 21:13:14,903 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-24 21:13:14,903 INFO L138 SettingsManager]: * DFS Order used in POR=PSEUDO_LOCKSTEP [2021-06-24 21:13:14,904 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-24 21:13:14,904 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-24 21:13:14,904 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-24 21:13:14,904 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-24 21:13:14,904 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-06-24 21:13:14,904 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-24 21:13:15,146 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-24 21:13:15,164 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-24 21:13:15,166 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-24 21:13:15,167 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-24 21:13:15,168 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-24 21:13:15,168 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth08-incorrect.bpl [2021-06-24 21:13:15,168 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth08-incorrect.bpl' [2021-06-24 21:13:15,194 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-24 21:13:15,195 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-24 21:13:15,196 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-24 21:13:15,197 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-24 21:13:15,197 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-24 21:13:15,206 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "bluetooth08-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 09:13:15" (1/1) ... [2021-06-24 21:13:15,212 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "bluetooth08-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 09:13:15" (1/1) ... [2021-06-24 21:13:15,225 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-24 21:13:15,227 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-24 21:13:15,227 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-24 21:13:15,227 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-24 21:13:15,233 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "bluetooth08-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 09:13:15" (1/1) ... [2021-06-24 21:13:15,233 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "bluetooth08-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 09:13:15" (1/1) ... [2021-06-24 21:13:15,233 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "bluetooth08-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 09:13:15" (1/1) ... [2021-06-24 21:13:15,234 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "bluetooth08-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 09:13:15" (1/1) ... [2021-06-24 21:13:15,236 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "bluetooth08-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 09:13:15" (1/1) ... [2021-06-24 21:13:15,239 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "bluetooth08-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 09:13:15" (1/1) ... [2021-06-24 21:13:15,240 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "bluetooth08-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 09:13:15" (1/1) ... [2021-06-24 21:13:15,241 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-24 21:13:15,242 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-24 21:13:15,243 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-24 21:13:15,243 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-24 21:13:15,244 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "bluetooth08-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 09:13:15" (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 21:13:15,306 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThread given in one single declaration [2021-06-24 21:13:15,306 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThread [2021-06-24 21:13:15,306 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThread [2021-06-24 21:13:15,307 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ServerThread given in one single declaration [2021-06-24 21:13:15,307 INFO L130 BoogieDeclarations]: Found specification of procedure ServerThread [2021-06-24 21:13:15,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ServerThread [2021-06-24 21:13:15,307 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-24 21:13:15,307 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-24 21:13:15,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-24 21:13:15,309 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 21:13:15,528 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-24 21:13:15,528 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-06-24 21:13:15,530 INFO L202 PluginConnector]: Adding new model bluetooth08-incorrect.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 09:13:15 BoogieIcfgContainer [2021-06-24 21:13:15,530 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-24 21:13:15,531 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-24 21:13:15,531 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-24 21:13:15,533 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-24 21:13:15,533 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth08-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 09:13:15" (1/2) ... [2021-06-24 21:13:15,534 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fabaf62 and model type bluetooth08-incorrect.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.06 09:13:15, skipping insertion in model container [2021-06-24 21:13:15,534 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth08-incorrect.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 09:13:15" (2/2) ... [2021-06-24 21:13:15,535 INFO L111 eAbstractionObserver]: Analyzing ICFG bluetooth08-incorrect.bpl [2021-06-24 21:13:15,539 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-24 21:13:15,539 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-24 21:13:15,539 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-24 21:13:15,544 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-24 21:13:15,613 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-24 21:13:15,630 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-06-24 21:13:15,685 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-24 21:13:15,686 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-24 21:13:15,686 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-24 21:13:15,686 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-24 21:13:15,686 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-24 21:13:15,686 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-24 21:13:15,686 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-24 21:13:15,686 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == DeviceThreadThread1of1ForFork8======== [2021-06-24 21:13:16,126 INFO L430 AbstractCegarLoop]: === Iteration 1 === [DeviceThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-06-24 21:13:16,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-24 21:13:16,130 INFO L82 PathProgramCache]: Analyzing trace with hash 2069520842, now seen corresponding path program 1 times [2021-06-24 21:13:16,136 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-24 21:13:16,136 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611257449] [2021-06-24 21:13:16,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-24 21:13:16,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-24 21:13:16,223 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 21:13:16,224 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-24 21:13:16,225 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611257449] [2021-06-24 21:13:16,225 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611257449] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-24 21:13:16,225 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-24 21:13:16,225 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-24 21:13:16,226 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657117865] [2021-06-24 21:13:16,229 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-24 21:13:16,229 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-24 21:13:16,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-24 21:13:16,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-24 21:13:16,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-24 21:13:16,241 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-24 21:13:16,242 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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 21:13:16,242 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-24 21:13:29,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 21:13:29,924 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-24 21:13:29,924 INFO L430 AbstractCegarLoop]: === Iteration 2 === [DeviceThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-06-24 21:13:29,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-24 21:13:29,924 INFO L82 PathProgramCache]: Analyzing trace with hash 1024549260, now seen corresponding path program 1 times [2021-06-24 21:13:29,924 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-24 21:13:29,925 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861753581] [2021-06-24 21:13:29,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-24 21:13:29,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-24 21:13:29,951 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 21:13:29,951 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-24 21:13:29,951 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861753581] [2021-06-24 21:13:29,952 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861753581] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-24 21:13:29,952 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-24 21:13:29,952 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-24 21:13:29,952 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441648182] [2021-06-24 21:13:29,953 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-24 21:13:29,954 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-24 21:13:29,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-24 21:13:29,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-24 21:13:29,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-24 21:13:29,955 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-24 21:13:29,955 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-24 21:13:29,955 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-24 21:13:29,955 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-24 21:16:59,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 21:16:59,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 21:16:59,917 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-24 21:16:59,917 INFO L430 AbstractCegarLoop]: === Iteration 3 === [DeviceThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-06-24 21:16:59,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-24 21:16:59,917 INFO L82 PathProgramCache]: Analyzing trace with hash 419729570, now seen corresponding path program 1 times [2021-06-24 21:16:59,917 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-24 21:16:59,918 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088963536] [2021-06-24 21:16:59,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-24 21:16:59,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-24 21:17:00,072 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 21 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-06-24 21:17:00,073 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-24 21:17:00,073 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088963536] [2021-06-24 21:17:00,073 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088963536] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-24 21:17:00,073 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1413101696] [2021-06-24 21:17:00,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-24 21:17:00,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-24 21:17:00,122 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 37 conjunts are in the unsatisfiable core [2021-06-24 21:17:00,127 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-06-24 21:17:00,707 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 21 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-06-24 21:17:00,707 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1413101696] provided 0 perfect and 1 imperfect interpolant sequences [2021-06-24 21:17:00,707 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-06-24 21:17:00,707 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2021-06-24 21:17:00,708 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84147374] [2021-06-24 21:17:00,708 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-24 21:17:00,708 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-24 21:17:00,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-24 21:17:00,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=37, Unknown=0, NotChecked=0, Total=72 [2021-06-24 21:17:00,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-24 21:17:00,709 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-24 21:17:00,709 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 8 states have internal predecessors, (69), 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 21:17:00,709 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-24 21:17:00,709 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-24 21:17:00,709 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-24 21:17:34,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 21:17:34,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 21:17:34,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-24 21:17:34,497 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-06-24 21:17:34,497 INFO L430 AbstractCegarLoop]: === Iteration 4 === [DeviceThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-06-24 21:17:34,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-24 21:17:34,499 INFO L82 PathProgramCache]: Analyzing trace with hash -743940569, now seen corresponding path program 1 times [2021-06-24 21:17:34,499 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-24 21:17:34,499 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179858578] [2021-06-24 21:17:34,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-24 21:17:34,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-24 21:17:34,561 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-24 21:17:34,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-24 21:17:34,591 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-24 21:17:34,608 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-06-24 21:17:34,609 INFO L605 BasicCegarLoop]: Counterexample might be feasible [2021-06-24 21:17:34,610 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-24 21:17:34,617 INFO L301 ceAbstractionStarter]: Result for error location DeviceThreadThread1of1ForFork8 was UNSAFE (1/9) [2021-06-24 21:17:34,619 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-24 21:17:34,634 INFO L202 PluginConnector]: Adding new model bluetooth08-incorrect.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.06 09:17:34 BasicIcfg [2021-06-24 21:17:34,634 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-24 21:17:34,635 INFO L168 Benchmark]: Toolchain (without parser) took 259439.41 ms. Allocated memory was 195.0 MB in the beginning and 4.5 GB in the end (delta: 4.3 GB). Free memory was 175.1 MB in the beginning and 1.4 GB in the end (delta: -1.2 GB). Peak memory consumption was 3.1 GB. Max. memory is 8.0 GB. [2021-06-24 21:17:34,635 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.15 ms. Allocated memory is still 195.0 MB. Free memory is still 176.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-06-24 21:17:34,635 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.13 ms. Allocated memory is still 195.0 MB. Free memory was 175.0 MB in the beginning and 173.2 MB in the end (delta: 1.8 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-06-24 21:17:34,635 INFO L168 Benchmark]: Boogie Preprocessor took 15.01 ms. Allocated memory is still 195.0 MB. Free memory was 173.2 MB in the beginning and 172.3 MB in the end (delta: 883.5 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-06-24 21:17:34,635 INFO L168 Benchmark]: RCFGBuilder took 287.57 ms. Allocated memory is still 195.0 MB. Free memory was 172.2 MB in the beginning and 159.5 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-06-24 21:17:34,635 INFO L168 Benchmark]: TraceAbstraction took 259103.13 ms. Allocated memory was 195.0 MB in the beginning and 4.5 GB in the end (delta: 4.3 GB). Free memory was 159.0 MB in the beginning and 1.4 GB in the end (delta: -1.2 GB). Peak memory consumption was 3.1 GB. Max. memory is 8.0 GB. [2021-06-24 21:17:34,635 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.15 ms. Allocated memory is still 195.0 MB. Free memory is still 176.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 29.13 ms. Allocated memory is still 195.0 MB. Free memory was 175.0 MB in the beginning and 173.2 MB in the end (delta: 1.8 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 15.01 ms. Allocated memory is still 195.0 MB. Free memory was 173.2 MB in the beginning and 172.3 MB in the end (delta: 883.5 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 287.57 ms. Allocated memory is still 195.0 MB. Free memory was 172.2 MB in the beginning and 159.5 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 259103.13 ms. Allocated memory was 195.0 MB in the beginning and 4.5 GB in the end (delta: 4.3 GB). Free memory was 159.0 MB in the beginning and 1.4 GB in the end (delta: -1.2 GB). Peak memory consumption was 3.1 GB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 6289799, positive: 5981868, positive conditional: 5974723, positive unconditional: 7145, negative: 307931, negative conditional: 307680, negative unconditional: 251, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 6075607, positive: 5981868, positive conditional: 5974723, positive unconditional: 7145, negative: 93739, negative conditional: 93488, negative unconditional: 251, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 6075607, positive: 5973726, positive conditional: 0, positive unconditional: 5973726, negative: 101881, negative conditional: 0, negative unconditional: 101881, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 4315, positive: 4164, positive conditional: 0, positive unconditional: 4164, negative: 151, negative conditional: 0, negative unconditional: 151, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 4315, positive: 4025, positive conditional: 0, positive unconditional: 4025, negative: 290, negative conditional: 0, negative unconditional: 290, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 290, positive: 139, positive conditional: 0, positive unconditional: 139, negative: 151, negative conditional: 0, negative unconditional: 151, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 468, positive: 281, positive conditional: 142, positive unconditional: 139, negative: 187, negative conditional: 36, negative unconditional: 151, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1087, positive: 674, positive conditional: 259, positive unconditional: 415, negative: 413, negative conditional: 80, negative unconditional: 333, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 6075607, positive: 5969562, positive conditional: 0, positive unconditional: 5969562, negative: 101730, negative conditional: 0, negative unconditional: 101730, unknown: 4315, unknown conditional: 0, unknown unconditional: 4315] , Statistics on independence cache: Total cache size (in pairs): 4493, Positive cache size: 4306, Positive conditional cache size: 142, Positive unconditional cache size: 4164, Negative cache size: 187, Negative conditional cache size: 36, Negative unconditional cache size: 151, SemanticConditionEliminator.Independence Queries: [ total: 213771, positive: 8142, positive conditional: 8142, positive unconditional: 0, negative: 205629, negative conditional: 28355, negative unconditional: 177274, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 213771, positive: 8142, positive conditional: 8142, positive unconditional: 0, negative: 205629, negative conditional: 28355, negative unconditional: 177274, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 468, positive: 281, positive conditional: 142, positive unconditional: 139, negative: 187, negative conditional: 36, negative unconditional: 151, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1087, positive: 674, positive conditional: 259, positive unconditional: 415, negative: 413, negative conditional: 80, negative unconditional: 333, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 213771, positive: 8000, positive conditional: 8000, positive unconditional: 0, negative: 205593, negative conditional: 28319, negative unconditional: 177274, unknown: 178, unknown conditional: 178, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 4493, Positive cache size: 4306, Positive conditional cache size: 142, Positive unconditional cache size: 4164, Negative cache size: 187, Negative conditional cache size: 36, Negative unconditional cache size: 151, Eliminated conditions: 176961, SemanticConditionEliminator.Independence Queries: [ total: 213771, positive: 8142, positive conditional: 8142, positive unconditional: 0, negative: 205629, negative conditional: 28355, negative unconditional: 177274, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 213771, positive: 8142, positive conditional: 8142, positive unconditional: 0, negative: 205629, negative conditional: 28355, negative unconditional: 177274, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 468, positive: 281, positive conditional: 142, positive unconditional: 139, negative: 187, negative conditional: 36, negative unconditional: 151, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1087, positive: 674, positive conditional: 259, positive unconditional: 415, negative: 413, negative conditional: 80, negative unconditional: 333, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 213771, positive: 8000, positive conditional: 8000, positive unconditional: 0, negative: 205593, negative conditional: 28319, negative unconditional: 177274, unknown: 178, unknown conditional: 178, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 4493, Positive cache size: 4306, Positive conditional cache size: 142, Positive unconditional cache size: 4164, Negative cache size: 187, Negative conditional cache size: 36, Negative unconditional cache size: 151, Eliminated conditions: 176961, SemanticConditionEliminator.Independence Queries: [ total: 213771, positive: 8142, positive conditional: 8142, positive unconditional: 0, negative: 205629, negative conditional: 28355, negative unconditional: 177274, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 213771, positive: 8142, positive conditional: 8142, positive unconditional: 0, negative: 205629, negative conditional: 28355, negative unconditional: 177274, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 468, positive: 281, positive conditional: 142, positive unconditional: 139, negative: 187, negative conditional: 36, negative unconditional: 151, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1087, positive: 674, positive conditional: 259, positive unconditional: 415, negative: 413, negative conditional: 80, negative unconditional: 333, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 213771, positive: 8000, positive conditional: 8000, positive unconditional: 0, negative: 205593, negative conditional: 28319, negative unconditional: 177274, unknown: 178, unknown conditional: 178, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 4493, Positive cache size: 4306, Positive conditional cache size: 142, Positive unconditional cache size: 4164, Negative cache size: 187, Negative conditional cache size: 36, Negative unconditional cache size: 151, Eliminated conditions: 176961 ], Maximal queried relation: 3, Independence queries for same thread: 214192 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 81625, Number of persistent set computation: 693215, Number of trivial persistent sets: 576253, Underlying independence relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 6289799, positive: 5981868, positive conditional: 5974723, positive unconditional: 7145, negative: 307931, negative conditional: 307680, negative unconditional: 251, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 6075607, positive: 5981868, positive conditional: 5974723, positive unconditional: 7145, negative: 93739, negative conditional: 93488, negative unconditional: 251, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 6075607, positive: 5973726, positive conditional: 0, positive unconditional: 5973726, negative: 101881, negative conditional: 0, negative unconditional: 101881, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 4315, positive: 4164, positive conditional: 0, positive unconditional: 4164, negative: 151, negative conditional: 0, negative unconditional: 151, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 4315, positive: 4025, positive conditional: 0, positive unconditional: 4025, negative: 290, negative conditional: 0, negative unconditional: 290, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 290, positive: 139, positive conditional: 0, positive unconditional: 139, negative: 151, negative conditional: 0, negative unconditional: 151, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 468, positive: 281, positive conditional: 142, positive unconditional: 139, negative: 187, negative conditional: 36, negative unconditional: 151, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1087, positive: 674, positive conditional: 259, positive unconditional: 415, negative: 413, negative conditional: 80, negative unconditional: 333, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 6075607, positive: 5969562, positive conditional: 0, positive unconditional: 5969562, negative: 101730, negative conditional: 0, negative unconditional: 101730, unknown: 4315, unknown conditional: 0, unknown unconditional: 4315] , Statistics on independence cache: Total cache size (in pairs): 4493, Positive cache size: 4306, Positive conditional cache size: 142, Positive unconditional cache size: 4164, Negative cache size: 187, Negative conditional cache size: 36, Negative unconditional cache size: 151, SemanticConditionEliminator.Independence Queries: [ total: 213771, positive: 8142, positive conditional: 8142, positive unconditional: 0, negative: 205629, negative conditional: 28355, negative unconditional: 177274, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 213771, positive: 8142, positive conditional: 8142, positive unconditional: 0, negative: 205629, negative conditional: 28355, negative unconditional: 177274, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 468, positive: 281, positive conditional: 142, positive unconditional: 139, negative: 187, negative conditional: 36, negative unconditional: 151, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1087, positive: 674, positive conditional: 259, positive unconditional: 415, negative: 413, negative conditional: 80, negative unconditional: 333, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 213771, positive: 8000, positive conditional: 8000, positive unconditional: 0, negative: 205593, negative conditional: 28319, negative unconditional: 177274, unknown: 178, unknown conditional: 178, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 4493, Positive cache size: 4306, Positive conditional cache size: 142, Positive unconditional cache size: 4164, Negative cache size: 187, Negative conditional cache size: 36, Negative unconditional cache size: 151, Eliminated conditions: 176961, SemanticConditionEliminator.Independence Queries: [ total: 213771, positive: 8142, positive conditional: 8142, positive unconditional: 0, negative: 205629, negative conditional: 28355, negative unconditional: 177274, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 213771, positive: 8142, positive conditional: 8142, positive unconditional: 0, negative: 205629, negative conditional: 28355, negative unconditional: 177274, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 468, positive: 281, positive conditional: 142, positive unconditional: 139, negative: 187, negative conditional: 36, negative unconditional: 151, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1087, positive: 674, positive conditional: 259, positive unconditional: 415, negative: 413, negative conditional: 80, negative unconditional: 333, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 213771, positive: 8000, positive conditional: 8000, positive unconditional: 0, negative: 205593, negative conditional: 28319, negative unconditional: 177274, unknown: 178, unknown conditional: 178, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 4493, Positive cache size: 4306, Positive conditional cache size: 142, Positive unconditional cache size: 4164, Negative cache size: 187, Negative conditional cache size: 36, Negative unconditional cache size: 151, Eliminated conditions: 176961, SemanticConditionEliminator.Independence Queries: [ total: 213771, positive: 8142, positive conditional: 8142, positive unconditional: 0, negative: 205629, negative conditional: 28355, negative unconditional: 177274, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 213771, positive: 8142, positive conditional: 8142, positive unconditional: 0, negative: 205629, negative conditional: 28355, negative unconditional: 177274, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 468, positive: 281, positive conditional: 142, positive unconditional: 139, negative: 187, negative conditional: 36, negative unconditional: 151, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1087, positive: 674, positive conditional: 259, positive unconditional: 415, negative: 413, negative conditional: 80, negative unconditional: 333, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 213771, positive: 8000, positive conditional: 8000, positive unconditional: 0, negative: 205593, negative conditional: 28319, negative unconditional: 177274, unknown: 178, unknown conditional: 178, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 4493, Positive cache size: 4306, Positive conditional cache size: 142, Positive unconditional cache size: 4164, Negative cache size: 187, Negative conditional cache size: 36, Negative unconditional cache size: 151, Eliminated conditions: 176961 ], Maximal queried relation: 3, Independence queries for same thread: 214192 - CounterExampleResult [Line: 39]: 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] [L49] 2 assume !stoppingFlag; VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L20] FORK 0 fork 2 DeviceThread(); VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L50] 2 pendingIo := pendingIo + 1; VAL [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=false] [L49] 3 assume !stoppingFlag; VAL [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=false] [L21] FORK 0 fork 3 DeviceThread(); VAL [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=false] [L39] 2 assert !stopped; VAL [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=false] [L50] 3 pendingIo := pendingIo + 1; VAL [pendingIo=3, stopped=false, stoppingEvent=false, stoppingFlag=false] [L49] 4 assume !stoppingFlag; VAL [pendingIo=3, stopped=false, stoppingEvent=false, stoppingFlag=false] [L22] FORK 0 fork 4 DeviceThread(); VAL [pendingIo=3, stopped=false, stoppingEvent=false, stoppingFlag=false] [L58] 2 pendingIo := pendingIo - 1; [L59] COND FALSE 2 !(pendingIo == 0) VAL [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=false] [L39] 3 assert !stopped; VAL [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=false] [L50] 4 pendingIo := pendingIo + 1; VAL [pendingIo=3, stopped=false, stoppingEvent=false, stoppingFlag=false] [L49] 5 assume !stoppingFlag; VAL [pendingIo=3, stopped=false, stoppingEvent=false, stoppingFlag=false] [L23] FORK 0 fork 5 DeviceThread(); VAL [pendingIo=3, stopped=false, stoppingEvent=false, stoppingFlag=false] [L49] 2 assume !stoppingFlag; VAL [pendingIo=3, stopped=false, stoppingEvent=false, stoppingFlag=false] [L58] 3 pendingIo := pendingIo - 1; [L59] COND FALSE 3 !(pendingIo == 0) VAL [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=false] [L39] 4 assert !stopped; VAL [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=false] [L50] 5 pendingIo := pendingIo + 1; VAL [pendingIo=3, stopped=false, stoppingEvent=false, stoppingFlag=false] [L49] 6 assume !stoppingFlag; VAL [pendingIo=3, stopped=false, stoppingEvent=false, stoppingFlag=false] [L24] FORK 0 fork 6 DeviceThread(); VAL [pendingIo=3, stopped=false, stoppingEvent=false, stoppingFlag=false] [L50] 2 pendingIo := pendingIo + 1; VAL [pendingIo=4, stopped=false, stoppingEvent=false, stoppingFlag=false] [L49] 3 assume !stoppingFlag; VAL [pendingIo=4, stopped=false, stoppingEvent=false, stoppingFlag=false] [L58] 4 pendingIo := pendingIo - 1; [L59] COND FALSE 4 !(pendingIo == 0) VAL [pendingIo=3, stopped=false, stoppingEvent=false, stoppingFlag=false] [L39] 5 assert !stopped; VAL [pendingIo=3, stopped=false, stoppingEvent=false, stoppingFlag=false] [L50] 6 pendingIo := pendingIo + 1; VAL [pendingIo=4, stopped=false, stoppingEvent=false, stoppingFlag=false] [L49] 7 assume !stoppingFlag; VAL [pendingIo=4, stopped=false, stoppingEvent=false, stoppingFlag=false] [L25] FORK 0 fork 7 DeviceThread(); VAL [pendingIo=4, stopped=false, stoppingEvent=false, stoppingFlag=false] [L39] 2 assert !stopped; VAL [pendingIo=4, stopped=false, stoppingEvent=false, stoppingFlag=false] [L50] 3 pendingIo := pendingIo + 1; VAL [pendingIo=5, stopped=false, stoppingEvent=false, stoppingFlag=false] [L49] 4 assume !stoppingFlag; VAL [pendingIo=5, stopped=false, stoppingEvent=false, stoppingFlag=false] [L58] 5 pendingIo := pendingIo - 1; [L59] COND FALSE 5 !(pendingIo == 0) VAL [pendingIo=4, stopped=false, stoppingEvent=false, stoppingFlag=false] [L39] 6 assert !stopped; VAL [pendingIo=4, stopped=false, stoppingEvent=false, stoppingFlag=false] [L50] 7 pendingIo := pendingIo + 1; VAL [pendingIo=5, stopped=false, stoppingEvent=false, stoppingFlag=false] [L49] 8 assume !stoppingFlag; VAL [pendingIo=5, stopped=false, stoppingEvent=false, stoppingFlag=false] [L26] FORK 0 fork 8 DeviceThread(); VAL [pendingIo=5, stopped=false, stoppingEvent=false, stoppingFlag=false] [L58] 2 pendingIo := pendingIo - 1; [L59] COND FALSE 2 !(pendingIo == 0) VAL [pendingIo=4, stopped=false, stoppingEvent=false, stoppingFlag=false] [L39] 3 assert !stopped; VAL [pendingIo=4, stopped=false, stoppingEvent=false, stoppingFlag=false] [L50] 4 pendingIo := pendingIo + 1; VAL [pendingIo=5, stopped=false, stoppingEvent=false, stoppingFlag=false] [L49] 5 assume !stoppingFlag; VAL [pendingIo=5, stopped=false, stoppingEvent=false, stoppingFlag=false] [L58] 6 pendingIo := pendingIo - 1; [L59] COND FALSE 6 !(pendingIo == 0) VAL [pendingIo=4, stopped=false, stoppingEvent=false, stoppingFlag=false] [L39] 7 assert !stopped; VAL [pendingIo=4, stopped=false, stoppingEvent=false, stoppingFlag=false] [L50] 8 pendingIo := pendingIo + 1; VAL [pendingIo=5, stopped=false, stoppingEvent=false, stoppingFlag=false] [L49] 9 assume !stoppingFlag; VAL [pendingIo=5, stopped=false, stoppingEvent=false, stoppingFlag=false] [L71] 1 stoppingFlag := true; VAL [pendingIo=5, stopped=false, stoppingEvent=false, stoppingFlag=true] [L58] 3 pendingIo := pendingIo - 1; [L59] COND FALSE 3 !(pendingIo == 0) VAL [pendingIo=4, stopped=false, stoppingEvent=false, stoppingFlag=true] [L39] 4 assert !stopped; VAL [pendingIo=4, stopped=false, stoppingEvent=false, stoppingFlag=true] [L50] 5 pendingIo := pendingIo + 1; VAL [pendingIo=5, stopped=false, stoppingEvent=false, stoppingFlag=true] [L58] 7 pendingIo := pendingIo - 1; [L59] COND FALSE 7 !(pendingIo == 0) VAL [pendingIo=4, stopped=false, stoppingEvent=false, stoppingFlag=true] [L39] 8 assert !stopped; VAL [pendingIo=4, stopped=false, stoppingEvent=false, stoppingFlag=true] [L81] 1 pendingIo := pendingIo - 1; [L82] COND FALSE 1 !(pendingIo == 0) VAL [pendingIo=3, stopped=false, stoppingEvent=false, stoppingFlag=true] [L58] 4 pendingIo := pendingIo - 1; [L59] COND FALSE 4 !(pendingIo == 0) VAL [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=true] [L39] 5 assert !stopped; VAL [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=true] [L58] 8 pendingIo := pendingIo - 1; [L59] COND FALSE 8 !(pendingIo == 0) VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=true] [L58] 5 pendingIo := pendingIo - 1; [L59] COND TRUE 5 pendingIo == 0 [L60] 5 stoppingEvent := true; VAL [pendingIo=0, stopped=false, stoppingEvent=true, stoppingFlag=true] [L50] 9 pendingIo := pendingIo + 1; VAL [pendingIo=1, stopped=false, stoppingEvent=true, stoppingFlag=true] [L73] 1 assume stoppingEvent; VAL [pendingIo=1, stopped=false, stoppingEvent=true, stoppingFlag=true] [L74] 1 stopped := true; VAL [pendingIo=1, stopped=true, stoppingEvent=true, stoppingFlag=true] [L39] 9 assert !stopped; VAL [pendingIo=1, stopped=true, stoppingEvent=true, stoppingFlag=true] - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: DeviceThreadThread1of1ForFork8 with 1 thread instances CFG has 12 procedures, 90 locations, 18 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 258965.8ms, OverallIterations: 4, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 15.5ms, PartialOrderReductionTime: 257653.3ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 23.2ms SsaConstructionTime, 111.8ms SatisfiabilityAnalysisTime, 764.0ms InterpolantComputationTime, 296 NumberOfCodeBlocks, 296 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 220 ConstructedInterpolants, 0 QuantifiedInterpolants, 860 SizeOfPredicates, 1 NumberOfNonLiveVariables, 119 ConjunctsInSsa, 37 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 48/50 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...