/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-DelaySleep-NoLbe-Lockstep.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth05-incorrect.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d310483fe8b4879eee5de19363f50e4b839cc4ec-d310483 [2021-06-24 19:01:00,195 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-24 19:01:00,201 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-24 19:01:00,223 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-06-24 19:01:00,223 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-06-24 19:01:00,224 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-06-24 19:01:00,225 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-06-24 19:01:00,228 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-06-24 19:01:00,229 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-06-24 19:01:00,230 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-06-24 19:01:00,230 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-06-24 19:01:00,231 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-06-24 19:01:00,231 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-24 19:01:00,232 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-24 19:01:00,233 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-24 19:01:00,233 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-24 19:01:00,234 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-24 19:01:00,235 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-24 19:01:00,236 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-24 19:01:00,237 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-24 19:01:00,238 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-24 19:01:00,248 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-24 19:01:00,248 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-24 19:01:00,249 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-24 19:01:00,252 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-06-24 19:01:00,252 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-06-24 19:01:00,252 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-06-24 19:01:00,253 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-06-24 19:01:00,253 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-06-24 19:01:00,254 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-06-24 19:01:00,254 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-06-24 19:01:00,254 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-06-24 19:01:00,255 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-06-24 19:01:00,256 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-06-24 19:01:00,256 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-06-24 19:01:00,256 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-06-24 19:01:00,257 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-06-24 19:01:00,257 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-06-24 19:01:00,257 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-24 19:01:00,258 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-24 19:01:00,258 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-24 19:01:00,259 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-DelaySleep-NoLbe-Lockstep.epf [2021-06-24 19:01:00,275 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-24 19:01:00,276 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-24 19:01:00,276 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-24 19:01:00,276 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-24 19:01:00,277 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-24 19:01:00,277 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-24 19:01:00,277 INFO L138 SettingsManager]: * Use SBE=true [2021-06-24 19:01:00,277 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-24 19:01:00,277 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-24 19:01:00,278 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-24 19:01:00,278 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-24 19:01:00,278 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-24 19:01:00,278 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-24 19:01:00,278 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-24 19:01:00,278 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-24 19:01:00,278 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-24 19:01:00,279 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-24 19:01:00,279 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-24 19:01:00,279 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-24 19:01:00,279 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-24 19:01:00,279 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-24 19:01:00,279 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-24 19:01:00,279 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-24 19:01:00,280 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-24 19:01:00,282 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-24 19:01:00,282 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-24 19:01:00,282 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-24 19:01:00,295 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-24 19:01:00,295 INFO L138 SettingsManager]: * DFS Order used in POR=PSEUDO_LOCKSTEP [2021-06-24 19:01:00,295 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-24 19:01:00,295 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-24 19:01:00,295 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-06-24 19:01:00,295 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-24 19:01:00,296 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-06-24 19:01:00,296 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-24 19:01:00,555 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-24 19:01:00,574 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-24 19:01:00,576 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-24 19:01:00,576 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-24 19:01:00,577 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-24 19:01:00,578 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth05-incorrect.bpl [2021-06-24 19:01:00,578 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth05-incorrect.bpl' [2021-06-24 19:01:00,593 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-24 19:01:00,594 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-24 19:01:00,595 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-24 19:01:00,595 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-24 19:01:00,595 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-24 19:01:00,604 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "bluetooth05-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 07:01:00" (1/1) ... [2021-06-24 19:01:00,609 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "bluetooth05-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 07:01:00" (1/1) ... [2021-06-24 19:01:00,625 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-24 19:01:00,626 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-24 19:01:00,626 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-24 19:01:00,626 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-24 19:01:00,631 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "bluetooth05-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 07:01:00" (1/1) ... [2021-06-24 19:01:00,631 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "bluetooth05-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 07:01:00" (1/1) ... [2021-06-24 19:01:00,632 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "bluetooth05-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 07:01:00" (1/1) ... [2021-06-24 19:01:00,632 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "bluetooth05-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 07:01:00" (1/1) ... [2021-06-24 19:01:00,633 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "bluetooth05-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 07:01:00" (1/1) ... [2021-06-24 19:01:00,634 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "bluetooth05-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 07:01:00" (1/1) ... [2021-06-24 19:01:00,635 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "bluetooth05-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 07:01:00" (1/1) ... [2021-06-24 19:01:00,636 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-24 19:01:00,636 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-24 19:01:00,636 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-24 19:01:00,636 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-24 19:01:00,637 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "bluetooth05-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 07:01:00" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-24 19:01:00,694 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThread given in one single declaration [2021-06-24 19:01:00,694 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThread [2021-06-24 19:01:00,694 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThread [2021-06-24 19:01:00,694 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ServerThread given in one single declaration [2021-06-24 19:01:00,694 INFO L130 BoogieDeclarations]: Found specification of procedure ServerThread [2021-06-24 19:01:00,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ServerThread [2021-06-24 19:01:00,694 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-24 19:01:00,695 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-24 19:01:00,695 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-24 19:01:00,695 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-24 19:01:00,829 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-24 19:01:00,830 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-06-24 19:01:00,840 INFO L202 PluginConnector]: Adding new model bluetooth05-incorrect.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 07:01:00 BoogieIcfgContainer [2021-06-24 19:01:00,840 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-24 19:01:00,841 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-24 19:01:00,841 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-24 19:01:00,847 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-24 19:01:00,847 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth05-incorrect.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 24.06 07:01:00" (1/2) ... [2021-06-24 19:01:00,848 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@399456fc and model type bluetooth05-incorrect.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.06 07:01:00, skipping insertion in model container [2021-06-24 19:01:00,848 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth05-incorrect.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.06 07:01:00" (2/2) ... [2021-06-24 19:01:00,849 INFO L111 eAbstractionObserver]: Analyzing ICFG bluetooth05-incorrect.bpl [2021-06-24 19:01:00,863 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-24 19:01:00,863 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-24 19:01:00,863 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-24 19:01:00,864 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-24 19:01:00,898 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-06-24 19:01:00,914 INFO L255 AbstractCegarLoop]: Starting to check reachability of 6 error locations. No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-06-24 19:01:00,964 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-24 19:01:00,965 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-24 19:01:00,965 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-24 19:01:00,965 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-24 19:01:00,965 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-24 19:01:00,965 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-24 19:01:00,965 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-24 19:01:00,965 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-24 19:01:02,964 INFO L301 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE (1/6) [2021-06-24 19:01:02,965 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 19:01:02,988 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-24 19:01:02,988 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-24 19:01:02,988 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-24 19:01:02,988 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-24 19:01:02,988 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-24 19:01:02,988 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-24 19:01:02,988 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-24 19:01:02,988 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == DeviceThreadThread1of1ForFork4======== [2021-06-24 19:01:03,039 INFO L430 AbstractCegarLoop]: === Iteration 1 === [DeviceThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-06-24 19:01:03,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-24 19:01:03,043 INFO L82 PathProgramCache]: Analyzing trace with hash -56780351, now seen corresponding path program 1 times [2021-06-24 19:01:03,048 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-24 19:01:03,048 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399336069] [2021-06-24 19:01:03,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-24 19:01:03,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-24 19:01:03,136 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 19:01:03,137 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-24 19:01:03,137 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399336069] [2021-06-24 19:01:03,137 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399336069] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-24 19:01:03,137 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-24 19:01:03,137 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-24 19:01:03,138 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204116490] [2021-06-24 19:01:03,141 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-24 19:01:03,142 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-24 19:01:03,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-24 19:01:03,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-24 19:01:03,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-24 19:01:03,152 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-24 19:01:03,153 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-24 19:01:03,153 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-24 19:01:03,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 19:01:03,449 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-24 19:01:03,449 INFO L430 AbstractCegarLoop]: === Iteration 2 === [DeviceThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-06-24 19:01:03,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-24 19:01:03,450 INFO L82 PathProgramCache]: Analyzing trace with hash 1350628151, now seen corresponding path program 1 times [2021-06-24 19:01:03,450 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-24 19:01:03,450 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270303592] [2021-06-24 19:01:03,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-24 19:01:03,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-24 19:01:03,475 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 19:01:03,476 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-24 19:01:03,476 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270303592] [2021-06-24 19:01:03,476 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1270303592] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-24 19:01:03,476 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-24 19:01:03,476 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-24 19:01:03,476 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516047476] [2021-06-24 19:01:03,477 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-24 19:01:03,477 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-24 19:01:03,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-24 19:01:03,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-24 19:01:03,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-24 19:01:03,478 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-24 19:01:03,478 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-24 19:01:03,478 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-24 19:01:03,478 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-24 19:01:03,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 19:01:03,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 19:01:03,787 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-24 19:01:03,788 INFO L430 AbstractCegarLoop]: === Iteration 3 === [DeviceThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-06-24 19:01:03,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-24 19:01:03,788 INFO L82 PathProgramCache]: Analyzing trace with hash -1311276115, now seen corresponding path program 1 times [2021-06-24 19:01:03,788 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-24 19:01:03,788 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669013464] [2021-06-24 19:01:03,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-24 19:01:03,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-24 19:01:03,879 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-06-24 19:01:03,879 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-24 19:01:03,879 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669013464] [2021-06-24 19:01:03,879 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669013464] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-24 19:01:03,879 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-24 19:01:03,879 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-24 19:01:03,880 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481011258] [2021-06-24 19:01:03,880 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-24 19:01:03,880 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-24 19:01:03,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-24 19:01:03,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2021-06-24 19:01:03,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-24 19:01:03,881 INFO L482 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-06-24 19:01:03,881 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 4.857142857142857) internal successors, (34), 6 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-24 19:01:03,881 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-24 19:01:03,881 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-06-24 19:01:03,881 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-06-24 19:01:04,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 19:01:04,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-24 19:01:04,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-06-24 19:01:04,163 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-24 19:01:04,164 INFO L430 AbstractCegarLoop]: === Iteration 4 === [DeviceThreadErr0ASSERT_VIOLATIONASSERT]=== [2021-06-24 19:01:04,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-24 19:01:04,165 INFO L82 PathProgramCache]: Analyzing trace with hash 588274193, now seen corresponding path program 2 times [2021-06-24 19:01:04,165 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-24 19:01:04,166 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608135373] [2021-06-24 19:01:04,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-24 19:01:04,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-24 19:01:04,188 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-24 19:01:04,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-06-24 19:01:04,195 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-06-24 19:01:04,300 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-06-24 19:01:04,300 INFO L605 BasicCegarLoop]: Counterexample might be feasible [2021-06-24 19:01:04,300 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-24 19:01:04,313 INFO L301 ceAbstractionStarter]: Result for error location DeviceThreadThread1of1ForFork4 was UNSAFE (2/6) [2021-06-24 19:01:04,314 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-24 19:01:04,336 INFO L202 PluginConnector]: Adding new model bluetooth05-incorrect.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.06 07:01:04 BasicIcfg [2021-06-24 19:01:04,336 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-24 19:01:04,338 INFO L168 Benchmark]: Toolchain (without parser) took 3743.94 ms. Allocated memory was 196.1 MB in the beginning and 477.1 MB in the end (delta: 281.0 MB). Free memory was 176.6 MB in the beginning and 405.6 MB in the end (delta: -229.0 MB). Peak memory consumption was 228.7 MB. Max. memory is 8.0 GB. [2021-06-24 19:01:04,339 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.12 ms. Allocated memory is still 196.1 MB. Free memory is still 177.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-06-24 19:01:04,339 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.88 ms. Allocated memory is still 196.1 MB. Free memory was 176.5 MB in the beginning and 174.8 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-06-24 19:01:04,340 INFO L168 Benchmark]: Boogie Preprocessor took 10.00 ms. Allocated memory is still 196.1 MB. Free memory was 174.8 MB in the beginning and 173.9 MB in the end (delta: 864.0 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-06-24 19:01:04,340 INFO L168 Benchmark]: RCFGBuilder took 203.97 ms. Allocated memory is still 196.1 MB. Free memory was 173.8 MB in the beginning and 161.3 MB in the end (delta: 12.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2021-06-24 19:01:04,342 INFO L168 Benchmark]: TraceAbstraction took 3496.35 ms. Allocated memory was 196.1 MB in the beginning and 477.1 MB in the end (delta: 281.0 MB). Free memory was 160.8 MB in the beginning and 405.6 MB in the end (delta: -244.8 MB). Peak memory consumption was 210.9 MB. Max. memory is 8.0 GB. [2021-06-24 19:01:04,351 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 196.1 MB. Free memory is still 177.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 29.88 ms. Allocated memory is still 196.1 MB. Free memory was 176.5 MB in the beginning and 174.8 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 10.00 ms. Allocated memory is still 196.1 MB. Free memory was 174.8 MB in the beginning and 173.9 MB in the end (delta: 864.0 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 203.97 ms. Allocated memory is still 196.1 MB. Free memory was 173.8 MB in the beginning and 161.3 MB in the end (delta: 12.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3496.35 ms. Allocated memory was 196.1 MB in the beginning and 477.1 MB in the end (delta: 281.0 MB). Free memory was 160.8 MB in the beginning and 405.6 MB in the end (delta: -244.8 MB). Peak memory consumption was 210.9 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: 97035, positive: 79024, positive conditional: 79024, positive unconditional: 0, negative: 18011, negative conditional: 18011, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 85438, positive: 79024, positive conditional: 79024, positive unconditional: 0, negative: 6414, negative conditional: 6414, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 85438, positive: 79024, positive conditional: 0, positive unconditional: 79024, negative: 6414, negative conditional: 0, negative unconditional: 6414, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 750, positive: 702, positive conditional: 0, positive unconditional: 702, negative: 48, negative conditional: 0, negative unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 750, positive: 655, positive conditional: 0, positive unconditional: 655, negative: 95, negative conditional: 0, negative unconditional: 95, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 95, positive: 47, positive conditional: 0, positive unconditional: 47, negative: 48, negative conditional: 0, negative unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 95, positive: 47, positive conditional: 0, positive unconditional: 47, negative: 48, negative conditional: 0, negative unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 323, positive: 158, positive conditional: 0, positive unconditional: 158, negative: 164, negative conditional: 0, negative unconditional: 164, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 85438, positive: 78322, positive conditional: 0, positive unconditional: 78322, negative: 6366, negative conditional: 0, negative unconditional: 6366, unknown: 750, unknown conditional: 0, unknown unconditional: 750] , Statistics on independence cache: Total cache size (in pairs): 750, Positive cache size: 702, Positive conditional cache size: 0, Positive unconditional cache size: 702, Negative cache size: 48, Negative conditional cache size: 0, Negative unconditional cache size: 48 ], Maximal queried relation: 0, Independence queries for same thread: 11597 - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 63476, positive: 59087, positive conditional: 59087, positive unconditional: 0, negative: 4389, negative conditional: 4389, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: DistributingIndependenceRelation.Independence Queries: [ total: 60017, positive: 59087, positive conditional: 59087, positive unconditional: 0, negative: 930, negative conditional: 930, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DistributingIndependenceRelation.Statistics on underlying relations: [ CachedIndependenceRelation.Independence Queries: [ total: 60017, positive: 58978, positive conditional: 0, positive unconditional: 58978, negative: 1039, negative conditional: 0, negative unconditional: 1039, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 586, positive: 560, positive conditional: 0, positive unconditional: 560, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 586, positive: 542, positive conditional: 0, positive unconditional: 542, negative: 44, negative conditional: 0, negative unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Independence Queries: [ total: 44, positive: 18, positive conditional: 0, positive unconditional: 18, negative: 26, negative conditional: 0, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 71, positive: 32, positive conditional: 14, positive unconditional: 18, negative: 39, negative conditional: 13, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 156, positive: 56, positive conditional: 17, positive unconditional: 39, negative: 100, negative conditional: 17, negative unconditional: 84, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 60017, positive: 58418, positive conditional: 0, positive unconditional: 58418, negative: 1013, negative conditional: 0, negative unconditional: 1013, unknown: 586, unknown conditional: 0, unknown unconditional: 586] , Statistics on independence cache: Total cache size (in pairs): 613, Positive cache size: 574, Positive conditional cache size: 14, Positive unconditional cache size: 560, Negative cache size: 39, Negative conditional cache size: 13, Negative unconditional cache size: 26, SemanticConditionEliminator.Independence Queries: [ total: 2105, positive: 109, positive conditional: 109, positive unconditional: 0, negative: 1996, negative conditional: 360, negative unconditional: 1636, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2105, positive: 109, positive conditional: 109, positive unconditional: 0, negative: 1996, negative conditional: 360, negative unconditional: 1636, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 71, positive: 32, positive conditional: 14, positive unconditional: 18, negative: 39, negative conditional: 13, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 156, positive: 56, positive conditional: 17, positive unconditional: 39, negative: 100, negative conditional: 17, negative unconditional: 84, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2105, positive: 95, positive conditional: 95, positive unconditional: 0, negative: 1983, negative conditional: 347, negative unconditional: 1636, unknown: 27, unknown conditional: 27, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 613, Positive cache size: 574, Positive conditional cache size: 14, Positive unconditional cache size: 560, Negative cache size: 39, Negative conditional cache size: 13, Negative unconditional cache size: 26, Eliminated conditions: 1636, SemanticConditionEliminator.Independence Queries: [ total: 2105, positive: 109, positive conditional: 109, positive unconditional: 0, negative: 1996, negative conditional: 360, negative unconditional: 1636, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2105, positive: 109, positive conditional: 109, positive unconditional: 0, negative: 1996, negative conditional: 360, negative unconditional: 1636, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 71, positive: 32, positive conditional: 14, positive unconditional: 18, negative: 39, negative conditional: 13, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 156, positive: 56, positive conditional: 17, positive unconditional: 39, negative: 100, negative conditional: 17, negative unconditional: 84, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2105, positive: 95, positive conditional: 95, positive unconditional: 0, negative: 1983, negative conditional: 347, negative unconditional: 1636, unknown: 27, unknown conditional: 27, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 613, Positive cache size: 574, Positive conditional cache size: 14, Positive unconditional cache size: 560, Negative cache size: 39, Negative conditional cache size: 13, Negative unconditional cache size: 26, Eliminated conditions: 1636, SemanticConditionEliminator.Independence Queries: [ total: 2105, positive: 109, positive conditional: 109, positive unconditional: 0, negative: 1996, negative conditional: 360, negative unconditional: 1636, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2105, positive: 109, positive conditional: 109, positive unconditional: 0, negative: 1996, negative conditional: 360, negative unconditional: 1636, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 71, positive: 32, positive conditional: 14, positive unconditional: 18, negative: 39, negative conditional: 13, negative unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 156, positive: 56, positive conditional: 17, positive unconditional: 39, negative: 100, negative conditional: 17, negative unconditional: 84, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2105, positive: 95, positive conditional: 95, positive unconditional: 0, negative: 1983, negative conditional: 347, negative unconditional: 1636, unknown: 27, unknown conditional: 27, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 613, Positive cache size: 574, Positive conditional cache size: 14, Positive unconditional cache size: 560, Negative cache size: 39, Negative conditional cache size: 13, Negative unconditional cache size: 26, Eliminated conditions: 1636 ], Maximal queried relation: 3, Independence queries for same thread: 3459 - CounterExampleResult [Line: 36]: assertion can be violated assertion can be violated We found a FailurePath: [L13] 0 pendingIo := 1; VAL [pendingIo=1] [L14] 0 stopped := false; VAL [pendingIo=1, stopped=false] [L15] 0 stoppingEvent := false; VAL [pendingIo=1, stopped=false, stoppingEvent=false] [L16] 0 stoppingFlag := false; VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L18] FORK 0 fork 0 ServerThread(); VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L19] FORK 0 fork 1 DeviceThread(); VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L46] 2 assume !stoppingFlag; VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L20] FORK 0 fork 2 DeviceThread(); VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L47] 2 pendingIo := pendingIo + 1; VAL [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=false] [L46] 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] [L36] 2 assert !stopped; VAL [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=false] [L47] 3 pendingIo := pendingIo + 1; VAL [pendingIo=3, stopped=false, stoppingEvent=false, stoppingFlag=false] [L46] 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] [L55] 2 pendingIo := pendingIo - 1; [L56] COND FALSE 2 !(pendingIo == 0) VAL [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=false] [L36] 3 assert !stopped; VAL [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=false] [L47] 4 pendingIo := pendingIo + 1; VAL [pendingIo=3, stopped=false, stoppingEvent=false, stoppingFlag=false] [L46] 5 assume !stoppingFlag; VAL [pendingIo=3, stopped=false, stoppingEvent=false, stoppingFlag=false] [L68] 1 stoppingFlag := true; VAL [pendingIo=3, stopped=false, stoppingEvent=false, stoppingFlag=true] [L23] FORK 0 fork 5 DeviceThread(); VAL [pendingIo=3, stopped=false, stoppingEvent=false, stoppingFlag=true] [L55] 3 pendingIo := pendingIo - 1; [L56] COND FALSE 3 !(pendingIo == 0) VAL [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=true] [L36] 4 assert !stopped; VAL [pendingIo=2, stopped=false, stoppingEvent=false, stoppingFlag=true] [L78] 1 pendingIo := pendingIo - 1; [L79] COND FALSE 1 !(pendingIo == 0) VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=true] [L55] 4 pendingIo := pendingIo - 1; [L56] COND TRUE 4 pendingIo == 0 [L57] 4 stoppingEvent := true; VAL [pendingIo=0, stopped=false, stoppingEvent=true, stoppingFlag=true] [L47] 5 pendingIo := pendingIo + 1; VAL [pendingIo=1, stopped=false, stoppingEvent=true, stoppingFlag=true] [L70] 1 assume stoppingEvent; VAL [pendingIo=1, stopped=false, stoppingEvent=true, stoppingFlag=true] [L71] 1 stopped := true; VAL [pendingIo=1, stopped=true, stoppingEvent=true, stoppingFlag=true] [L36] 5 assert !stopped; VAL [pendingIo=1, stopped=true, stoppingEvent=true, stoppingFlag=true] - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 9 procedures, 66 locations, 12 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2026.0ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 14.9ms, PartialOrderReductionTime: 1970.4ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: DeviceThreadThread1of1ForFork4 with 1 thread instances CFG has 9 procedures, 66 locations, 12 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1339.1ms, OverallIterations: 4, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1.1ms, PartialOrderReductionTime: 937.1ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 12, 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: 5.3ms SsaConstructionTime, 51.5ms SatisfiabilityAnalysisTime, 121.0ms InterpolantComputationTime, 118 NumberOfCodeBlocks, 118 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 81 ConstructedInterpolants, 0 QuantifiedInterpolants, 231 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...