/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-PN-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-incorrect05.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-1c3aa5735269c4be989a50fc1da9ea7b9492ef29-1c3aa57 [2021-07-01 09:56:03,265 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-01 09:56:03,267 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-01 09:56:03,311 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-07-01 09:56:03,332 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-01 09:56:03,334 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-01 09:56:03,335 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-01 09:56:03,336 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-01 09:56:03,340 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-01 09:56:03,341 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-01 09:56:03,344 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-01 09:56:03,351 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-01 09:56:03,355 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-01 09:56:03,356 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-01 09:56:03,357 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-01 09:56:03,359 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-01 09:56:03,365 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-07-01 09:56:03,382 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-01 09:56:03,383 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-01 09:56:03,383 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-01 09:56:03,387 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-PN-NoLbe.epf [2021-07-01 09:56:03,423 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-01 09:56:03,423 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-01 09:56:03,426 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-01 09:56:03,426 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-01 09:56:03,426 INFO L138 SettingsManager]: * Use SBE=true [2021-07-01 09:56:03,427 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-01 09:56:03,427 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-01 09:56:03,427 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-01 09:56:03,427 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-01 09:56:03,427 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-01 09:56:03,428 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-01 09:56:03,428 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-01 09:56:03,429 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-01 09:56:03,429 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-01 09:56:03,429 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-01 09:56:03,429 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-01 09:56:03,429 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-01 09:56:03,429 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-01 09:56:03,429 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-01 09:56:03,430 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-01 09:56:03,430 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-01 09:56:03,430 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-01 09:56:03,430 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-01 09:56:03,430 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-01 09:56:03,430 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-01 09:56:03,431 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-01 09:56:03,431 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-01 09:56:03,431 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-01 09:56:03,431 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-07-01 09:56:03,431 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-01 09:56:03,793 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-01 09:56:03,816 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-01 09:56:03,818 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-01 09:56:03,820 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-01 09:56:03,821 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-01 09:56:03,822 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-incorrect05.bpl [2021-07-01 09:56:03,822 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/POPL2022/bluetooth-incorrect05.bpl' [2021-07-01 09:56:03,848 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-01 09:56:03,849 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-01 09:56:03,850 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-01 09:56:03,850 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-01 09:56:03,850 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-01 09:56:03,861 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "bluetooth-incorrect05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 09:56:03" (1/1) ... [2021-07-01 09:56:03,866 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "bluetooth-incorrect05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 09:56:03" (1/1) ... [2021-07-01 09:56:03,881 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-01 09:56:03,882 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-01 09:56:03,882 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-01 09:56:03,883 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-01 09:56:03,890 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "bluetooth-incorrect05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 09:56:03" (1/1) ... [2021-07-01 09:56:03,890 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "bluetooth-incorrect05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 09:56:03" (1/1) ... [2021-07-01 09:56:03,891 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "bluetooth-incorrect05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 09:56:03" (1/1) ... [2021-07-01 09:56:03,891 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "bluetooth-incorrect05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 09:56:03" (1/1) ... [2021-07-01 09:56:03,893 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "bluetooth-incorrect05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 09:56:03" (1/1) ... [2021-07-01 09:56:03,896 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "bluetooth-incorrect05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 09:56:03" (1/1) ... [2021-07-01 09:56:03,896 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "bluetooth-incorrect05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 09:56:03" (1/1) ... [2021-07-01 09:56:03,897 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-01 09:56:03,898 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-01 09:56:03,898 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-01 09:56:03,899 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-01 09:56:03,900 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "bluetooth-incorrect05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 09:56:03" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-01 09:56:03,958 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThreadWithAssert given in one single declaration [2021-07-01 09:56:03,959 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThreadWithAssert [2021-07-01 09:56:03,960 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThreadWithAssert [2021-07-01 09:56:03,961 INFO L124 BoogieDeclarations]: Specification and implementation of procedure DeviceThread given in one single declaration [2021-07-01 09:56:03,961 INFO L130 BoogieDeclarations]: Found specification of procedure DeviceThread [2021-07-01 09:56:03,961 INFO L138 BoogieDeclarations]: Found implementation of procedure DeviceThread [2021-07-01 09:56:03,961 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ServerThread given in one single declaration [2021-07-01 09:56:03,961 INFO L130 BoogieDeclarations]: Found specification of procedure ServerThread [2021-07-01 09:56:03,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ServerThread [2021-07-01 09:56:03,962 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-01 09:56:03,962 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-01 09:56:03,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-01 09:56:03,963 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-01 09:56:04,234 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-01 09:56:04,235 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-07-01 09:56:04,236 INFO L202 PluginConnector]: Adding new model bluetooth-incorrect05.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 09:56:04 BoogieIcfgContainer [2021-07-01 09:56:04,237 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-01 09:56:04,238 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-01 09:56:04,238 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-01 09:56:04,240 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-01 09:56:04,241 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-incorrect05.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.07 09:56:03" (1/2) ... [2021-07-01 09:56:04,241 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a850d94 and model type bluetooth-incorrect05.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.07 09:56:04, skipping insertion in model container [2021-07-01 09:56:04,241 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bluetooth-incorrect05.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.07 09:56:04" (2/2) ... [2021-07-01 09:56:04,243 INFO L111 eAbstractionObserver]: Analyzing ICFG bluetooth-incorrect05.bpl [2021-07-01 09:56:04,247 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-01 09:56:04,247 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-01 09:56:04,248 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-01 09:56:04,337 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-07-01 09:56:04,360 INFO L255 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-07-01 09:56:04,389 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-01 09:56:04,389 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-01 09:56:04,390 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-01 09:56:04,390 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-01 09:56:04,390 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-01 09:56:04,390 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-01 09:56:04,390 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-01 09:56:04,390 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-01 09:56:04,401 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 58 places, 44 transitions, 118 flow [2021-07-01 09:56:04,436 INFO L129 PetriNetUnfolder]: 5/38 cut-off events. [2021-07-01 09:56:04,436 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-07-01 09:56:04,441 INFO L84 FinitePrefix]: Finished finitePrefix Result has 57 conditions, 38 events. 5/38 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 89 event pairs, 0 based on Foata normal form. 0/32 useless extension candidates. Maximal degree in co-relation 43. Up to 2 conditions per place. [2021-07-01 09:56:04,441 INFO L82 GeneralOperation]: Start removeDead. Operand has 58 places, 44 transitions, 118 flow [2021-07-01 09:56:04,443 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 0 places, 0 transitions, 0 flow [2021-07-01 09:56:04,444 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-07-01 09:56:04,444 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-07-01 09:56:04,445 INFO L301 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE (1/2) [2021-07-01 09:56:04,447 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-01 09:56:04,460 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-01 09:56:04,460 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-01 09:56:04,460 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-01 09:56:04,460 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-01 09:56:04,460 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-01 09:56:04,461 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-01 09:56:04,461 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-01 09:56:04,461 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == DeviceThreadWithAssertThread1of1ForFork1======== [2021-07-01 09:56:04,463 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 58 places, 44 transitions, 118 flow [2021-07-01 09:56:04,481 INFO L129 PetriNetUnfolder]: 5/38 cut-off events. [2021-07-01 09:56:04,481 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-07-01 09:56:04,482 INFO L84 FinitePrefix]: Finished finitePrefix Result has 57 conditions, 38 events. 5/38 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 89 event pairs, 0 based on Foata normal form. 0/32 useless extension candidates. Maximal degree in co-relation 43. Up to 2 conditions per place. [2021-07-01 09:56:04,482 INFO L82 GeneralOperation]: Start removeDead. Operand has 58 places, 44 transitions, 118 flow [2021-07-01 09:56:04,485 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 52 places, 38 transitions, 94 flow [2021-07-01 09:56:04,498 INFO L129 PetriNetUnfolder]: 2/23 cut-off events. [2021-07-01 09:56:04,499 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-07-01 09:56:04,499 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-07-01 09:56:04,500 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-01 09:56:04,500 INFO L430 AbstractCegarLoop]: === Iteration 1 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 09:56:04,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 09:56:04,506 INFO L82 PathProgramCache]: Analyzing trace with hash 991956788, now seen corresponding path program 1 times [2021-07-01 09:56:04,535 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 09:56:04,536 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095113319] [2021-07-01 09:56:04,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 09:56:04,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 09:56:04,633 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-01 09:56:04,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-01 09:56:04,635 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-01 09:56:04,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-07-01 09:56:04,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-01 09:56:04,648 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 09:56:04,649 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095113319] [2021-07-01 09:56:04,650 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095113319] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-01 09:56:04,650 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-01 09:56:04,651 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-07-01 09:56:04,651 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140208214] [2021-07-01 09:56:04,658 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-01 09:56:04,658 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 09:56:04,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-01 09:56:04,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-01 09:56:04,675 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 44 [2021-07-01 09:56:04,679 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 38 transitions, 94 flow. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-01 09:56:04,679 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-07-01 09:56:04,679 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 44 [2021-07-01 09:56:04,681 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-07-01 09:56:04,722 INFO L129 PetriNetUnfolder]: 6/46 cut-off events. [2021-07-01 09:56:04,722 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-07-01 09:56:04,724 INFO L84 FinitePrefix]: Finished finitePrefix Result has 73 conditions, 46 events. 6/46 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 126 event pairs, 0 based on Foata normal form. 0/39 useless extension candidates. Maximal degree in co-relation 57. Up to 4 conditions per place. [2021-07-01 09:56:04,725 INFO L132 encePairwiseOnDemand]: 40/44 looper letters, 2 selfloop transitions, 3 changer transitions 0/39 dead transitions. [2021-07-01 09:56:04,725 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 39 transitions, 106 flow [2021-07-01 09:56:04,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 09:56:04,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-07-01 09:56:04,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 126 transitions. [2021-07-01 09:56:04,737 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.9545454545454546 [2021-07-01 09:56:04,738 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 126 transitions. [2021-07-01 09:56:04,738 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 126 transitions. [2021-07-01 09:56:04,740 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-07-01 09:56:04,742 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 126 transitions. [2021-07-01 09:56:04,746 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-01 09:56:04,751 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 44.0) internal successors, (176), 4 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-01 09:56:04,751 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 44.0) internal successors, (176), 4 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-01 09:56:04,753 INFO L185 Difference]: Start difference. First operand has 52 places, 38 transitions, 94 flow. Second operand 3 states and 126 transitions. [2021-07-01 09:56:04,754 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 39 transitions, 106 flow [2021-07-01 09:56:04,758 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 39 transitions, 100 flow, removed 0 selfloop flow, removed 6 redundant places. [2021-07-01 09:56:04,763 INFO L241 Difference]: Finished difference. Result has 50 places, 39 transitions, 106 flow [2021-07-01 09:56:04,765 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=106, PETRI_PLACES=50, PETRI_TRANSITIONS=39} [2021-07-01 09:56:04,766 INFO L335 CegarLoopForPetriNet]: 52 programPoint places, -2 predicate places. [2021-07-01 09:56:04,766 INFO L482 AbstractCegarLoop]: Abstraction has has 50 places, 39 transitions, 106 flow [2021-07-01 09:56:04,766 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-01 09:56:04,767 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-07-01 09:56:04,767 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-01 09:56:04,768 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-01 09:56:04,768 INFO L430 AbstractCegarLoop]: === Iteration 2 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 09:56:04,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 09:56:04,768 INFO L82 PathProgramCache]: Analyzing trace with hash 704460406, now seen corresponding path program 1 times [2021-07-01 09:56:04,768 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 09:56:04,769 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51775638] [2021-07-01 09:56:04,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 09:56:04,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 09:56:04,797 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-01 09:56:04,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-01 09:56:04,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-01 09:56:04,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-01 09:56:04,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-01 09:56:04,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-01 09:56:04,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-01 09:56:04,808 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 09:56:04,808 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51775638] [2021-07-01 09:56:04,809 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51775638] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-01 09:56:04,809 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-01 09:56:04,809 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-01 09:56:04,809 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317812913] [2021-07-01 09:56:04,810 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-01 09:56:04,810 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 09:56:04,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-01 09:56:04,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-01 09:56:04,813 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 44 [2021-07-01 09:56:04,813 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 39 transitions, 106 flow. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-01 09:56:04,813 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-07-01 09:56:04,813 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 44 [2021-07-01 09:56:04,814 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-07-01 09:56:04,926 INFO L129 PetriNetUnfolder]: 80/419 cut-off events. [2021-07-01 09:56:04,926 INFO L130 PetriNetUnfolder]: For 49/49 co-relation queries the response was YES. [2021-07-01 09:56:04,931 INFO L84 FinitePrefix]: Finished finitePrefix Result has 699 conditions, 419 events. 80/419 cut-off events. For 49/49 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 3165 event pairs, 49 based on Foata normal form. 89/480 useless extension candidates. Maximal degree in co-relation 685. Up to 82 conditions per place. [2021-07-01 09:56:04,937 INFO L132 encePairwiseOnDemand]: 38/44 looper letters, 6 selfloop transitions, 1 changer transitions 0/39 dead transitions. [2021-07-01 09:56:04,937 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 39 transitions, 120 flow [2021-07-01 09:56:04,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-01 09:56:04,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-07-01 09:56:04,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 123 transitions. [2021-07-01 09:56:04,939 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.9318181818181818 [2021-07-01 09:56:04,939 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 123 transitions. [2021-07-01 09:56:04,940 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 123 transitions. [2021-07-01 09:56:04,940 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-07-01 09:56:04,940 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 123 transitions. [2021-07-01 09:56:04,941 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 41.0) internal successors, (123), 3 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-01 09:56:04,942 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 44.0) internal successors, (176), 4 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-01 09:56:04,942 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 44.0) internal successors, (176), 4 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-01 09:56:04,942 INFO L185 Difference]: Start difference. First operand has 50 places, 39 transitions, 106 flow. Second operand 3 states and 123 transitions. [2021-07-01 09:56:04,942 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 39 transitions, 120 flow [2021-07-01 09:56:04,945 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 39 transitions, 114 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-07-01 09:56:04,946 INFO L241 Difference]: Finished difference. Result has 51 places, 39 transitions, 113 flow [2021-07-01 09:56:04,946 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=113, PETRI_PLACES=51, PETRI_TRANSITIONS=39} [2021-07-01 09:56:04,947 INFO L335 CegarLoopForPetriNet]: 52 programPoint places, -1 predicate places. [2021-07-01 09:56:04,947 INFO L482 AbstractCegarLoop]: Abstraction has has 51 places, 39 transitions, 113 flow [2021-07-01 09:56:04,947 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-01 09:56:04,947 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-07-01 09:56:04,947 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-01 09:56:04,947 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-01 09:56:04,947 INFO L430 AbstractCegarLoop]: === Iteration 3 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 09:56:04,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 09:56:04,948 INFO L82 PathProgramCache]: Analyzing trace with hash -2103470926, now seen corresponding path program 2 times [2021-07-01 09:56:04,948 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 09:56:04,948 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205876246] [2021-07-01 09:56:04,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 09:56:04,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-01 09:56:04,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-01 09:56:04,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-01 09:56:04,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-01 09:56:04,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-07-01 09:56:04,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-01 09:56:04,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 6 [2021-07-01 09:56:05,007 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-01 09:56:05,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 2 [2021-07-01 09:56:05,012 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-01 09:56:05,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-01 09:56:05,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-01 09:56:05,013 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-01 09:56:05,014 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205876246] [2021-07-01 09:56:05,014 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205876246] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-01 09:56:05,014 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-01 09:56:05,014 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-07-01 09:56:05,014 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650279422] [2021-07-01 09:56:05,015 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-01 09:56:05,015 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-01 09:56:05,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-01 09:56:05,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-07-01 09:56:05,016 INFO L500 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 44 [2021-07-01 09:56:05,017 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 39 transitions, 113 flow. Second operand has 6 states, 6 states have (on average 30.833333333333332) internal successors, (185), 6 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-01 09:56:05,017 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-07-01 09:56:05,017 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 44 [2021-07-01 09:56:05,017 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-07-01 09:56:05,640 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([103] L70-2-->L61: Formula: (not v_stoppingFlag_2) InVars {stoppingFlag=v_stoppingFlag_2} OutVars{stoppingFlag=v_stoppingFlag_2} AuxVars[] AssignedVars[][39], [32#L70-2true, Black: 61#true, 67#true, Black: 69#stoppingFlag, 72#true, 9#L70-2true, 14#L61true, 17#L61true, DeviceThreadWithAssertThread1of1ForFork1InUse, ServerThreadThread1of1ForFork0InUse, DeviceThreadThread1of1ForFork2InUse, 24#ServerThreadENTRYtrue, DeviceThreadThread1of1ForFork3InUse, 26#ULTIMATE.startFINALtrue, DeviceThreadThread1of1ForFork5InUse, 27#L61true, DeviceThreadThread1of1ForFork4InUse]) [2021-07-01 09:56:05,641 INFO L384 tUnfolder$Statistics]: this new event has 19 ancestors and is cut-off event [2021-07-01 09:56:05,641 INFO L387 tUnfolder$Statistics]: existing Event has 19 ancestors and is cut-off event [2021-07-01 09:56:05,641 INFO L387 tUnfolder$Statistics]: existing Event has 19 ancestors and is cut-off event [2021-07-01 09:56:05,641 INFO L387 tUnfolder$Statistics]: existing Event has 19 ancestors and is cut-off event [2021-07-01 09:56:05,745 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([103] L70-2-->L61: Formula: (not v_stoppingFlag_2) InVars {stoppingFlag=v_stoppingFlag_2} OutVars{stoppingFlag=v_stoppingFlag_2} AuxVars[] AssignedVars[][39], [32#L70-2true, Black: 61#true, 67#true, Black: 69#stoppingFlag, 72#true, 14#L61true, 17#L61true, DeviceThreadWithAssertThread1of1ForFork1InUse, ServerThreadThread1of1ForFork0InUse, DeviceThreadThread1of1ForFork2InUse, 24#ServerThreadENTRYtrue, DeviceThreadThread1of1ForFork3InUse, 26#ULTIMATE.startFINALtrue, DeviceThreadThread1of1ForFork5InUse, 27#L61true, DeviceThreadThread1of1ForFork4InUse, 29#L61true]) [2021-07-01 09:56:05,745 INFO L384 tUnfolder$Statistics]: this new event has 20 ancestors and is cut-off event [2021-07-01 09:56:05,746 INFO L387 tUnfolder$Statistics]: existing Event has 20 ancestors and is cut-off event [2021-07-01 09:56:05,747 INFO L387 tUnfolder$Statistics]: existing Event has 20 ancestors and is cut-off event [2021-07-01 09:56:05,747 INFO L387 tUnfolder$Statistics]: existing Event has 20 ancestors and is cut-off event [2021-07-01 09:56:05,914 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([103] L70-2-->L61: Formula: (not v_stoppingFlag_2) InVars {stoppingFlag=v_stoppingFlag_2} OutVars{stoppingFlag=v_stoppingFlag_2} AuxVars[] AssignedVars[][39], [32#L70-2true, Black: 61#true, 67#true, Black: 69#stoppingFlag, 40#L56true, 75#(and (<= 1 pendingIo) (not stoppingEvent)), 14#L61true, 17#L61true, DeviceThreadWithAssertThread1of1ForFork1InUse, ServerThreadThread1of1ForFork0InUse, DeviceThreadThread1of1ForFork2InUse, 24#ServerThreadENTRYtrue, DeviceThreadThread1of1ForFork3InUse, 26#ULTIMATE.startFINALtrue, DeviceThreadThread1of1ForFork5InUse, 27#L61true, DeviceThreadThread1of1ForFork4InUse]) [2021-07-01 09:56:05,915 INFO L384 tUnfolder$Statistics]: this new event has 21 ancestors and is cut-off event [2021-07-01 09:56:05,915 INFO L387 tUnfolder$Statistics]: existing Event has 18 ancestors and is cut-off event [2021-07-01 09:56:05,916 INFO L387 tUnfolder$Statistics]: existing Event has 18 ancestors and is cut-off event [2021-07-01 09:56:05,916 INFO L387 tUnfolder$Statistics]: existing Event has 21 ancestors and is cut-off event [2021-07-01 09:56:05,918 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([103] L70-2-->L61: Formula: (not v_stoppingFlag_2) InVars {stoppingFlag=v_stoppingFlag_2} OutVars{stoppingFlag=v_stoppingFlag_2} AuxVars[] AssignedVars[][39], [32#L70-2true, Black: 61#true, 67#true, Black: 69#stoppingFlag, 40#L56true, 72#true, 14#L61true, 17#L61true, DeviceThreadWithAssertThread1of1ForFork1InUse, ServerThreadThread1of1ForFork0InUse, DeviceThreadThread1of1ForFork2InUse, 24#ServerThreadENTRYtrue, DeviceThreadThread1of1ForFork3InUse, 26#ULTIMATE.startFINALtrue, DeviceThreadThread1of1ForFork5InUse, 27#L61true, DeviceThreadThread1of1ForFork4InUse]) [2021-07-01 09:56:05,918 INFO L384 tUnfolder$Statistics]: this new event has 21 ancestors and is cut-off event [2021-07-01 09:56:05,918 INFO L387 tUnfolder$Statistics]: existing Event has 21 ancestors and is cut-off event [2021-07-01 09:56:05,918 INFO L387 tUnfolder$Statistics]: existing Event has 21 ancestors and is cut-off event [2021-07-01 09:56:05,918 INFO L387 tUnfolder$Statistics]: existing Event has 21 ancestors and is cut-off event [2021-07-01 09:56:06,094 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([99] L70-2-->L61: Formula: (not v_stoppingFlag_2) InVars {stoppingFlag=v_stoppingFlag_2} OutVars{stoppingFlag=v_stoppingFlag_2} AuxVars[] AssignedVars[][27], [Black: 61#true, 67#true, Black: 69#stoppingFlag, 72#true, 46#L24true, 17#L61true, DeviceThreadWithAssertThread1of1ForFork1InUse, ServerThreadThread1of1ForFork0InUse, 21#L70-2true, DeviceThreadThread1of1ForFork2InUse, 24#ServerThreadENTRYtrue, DeviceThreadThread1of1ForFork3InUse, 25#L61true, DeviceThreadThread1of1ForFork4InUse, 29#L61true]) [2021-07-01 09:56:06,094 INFO L384 tUnfolder$Statistics]: this new event has 24 ancestors and is cut-off event [2021-07-01 09:56:06,094 INFO L387 tUnfolder$Statistics]: existing Event has 18 ancestors and is cut-off event [2021-07-01 09:56:06,094 INFO L387 tUnfolder$Statistics]: existing Event has 18 ancestors and is cut-off event [2021-07-01 09:56:06,094 INFO L387 tUnfolder$Statistics]: existing Event has 22 ancestors and is cut-off event [2021-07-01 09:56:06,095 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([99] L70-2-->L61: Formula: (not v_stoppingFlag_2) InVars {stoppingFlag=v_stoppingFlag_2} OutVars{stoppingFlag=v_stoppingFlag_2} AuxVars[] AssignedVars[][27], [Black: 61#true, 67#true, Black: 69#stoppingFlag, 72#true, 14#L61true, 46#L24true, 17#L61true, DeviceThreadWithAssertThread1of1ForFork1InUse, ServerThreadThread1of1ForFork0InUse, DeviceThreadThread1of1ForFork2InUse, 24#ServerThreadENTRYtrue, DeviceThreadThread1of1ForFork3InUse, 25#L61true, DeviceThreadThread1of1ForFork4InUse, 29#L61true]) [2021-07-01 09:56:06,095 INFO L384 tUnfolder$Statistics]: this new event has 25 ancestors and is cut-off event [2021-07-01 09:56:06,095 INFO L387 tUnfolder$Statistics]: existing Event has 19 ancestors and is cut-off event [2021-07-01 09:56:06,095 INFO L387 tUnfolder$Statistics]: existing Event has 19 ancestors and is cut-off event [2021-07-01 09:56:06,095 INFO L387 tUnfolder$Statistics]: existing Event has 19 ancestors and is cut-off event [2021-07-01 09:56:06,140 INFO L129 PetriNetUnfolder]: 6527/9700 cut-off events. [2021-07-01 09:56:06,141 INFO L130 PetriNetUnfolder]: For 237/237 co-relation queries the response was YES. [2021-07-01 09:56:06,191 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18895 conditions, 9700 events. 6527/9700 cut-off events. For 237/237 co-relation queries the response was YES. Maximal size of possible extension queue 634. Compared 58288 event pairs, 1640 based on Foata normal form. 473/9574 useless extension candidates. Maximal degree in co-relation 18880. Up to 5690 conditions per place. [2021-07-01 09:56:06,301 INFO L132 encePairwiseOnDemand]: 30/44 looper letters, 17 selfloop transitions, 19 changer transitions 0/61 dead transitions. [2021-07-01 09:56:06,301 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 61 transitions, 229 flow [2021-07-01 09:56:06,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-01 09:56:06,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-07-01 09:56:06,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 188 transitions. [2021-07-01 09:56:06,303 INFO L545 CegarLoopForPetriNet]: DFA transition density 0.8545454545454545 [2021-07-01 09:56:06,303 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 188 transitions. [2021-07-01 09:56:06,304 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 188 transitions. [2021-07-01 09:56:06,304 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-07-01 09:56:06,304 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 188 transitions. [2021-07-01 09:56:06,305 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 37.6) internal successors, (188), 5 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-01 09:56:06,306 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 44.0) internal successors, (264), 6 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-01 09:56:06,306 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 44.0) internal successors, (264), 6 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-01 09:56:06,307 INFO L185 Difference]: Start difference. First operand has 51 places, 39 transitions, 113 flow. Second operand 5 states and 188 transitions. [2021-07-01 09:56:06,307 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 61 transitions, 229 flow [2021-07-01 09:56:06,333 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 61 transitions, 228 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-07-01 09:56:06,334 INFO L241 Difference]: Finished difference. Result has 56 places, 56 transitions, 239 flow [2021-07-01 09:56:06,335 INFO L318 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=239, PETRI_PLACES=56, PETRI_TRANSITIONS=56} [2021-07-01 09:56:06,335 INFO L335 CegarLoopForPetriNet]: 52 programPoint places, 4 predicate places. [2021-07-01 09:56:06,335 INFO L482 AbstractCegarLoop]: Abstraction has has 56 places, 56 transitions, 239 flow [2021-07-01 09:56:06,335 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 30.833333333333332) internal successors, (185), 6 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-01 09:56:06,335 INFO L247 CegarLoopForPetriNet]: Found error trace [2021-07-01 09:56:06,335 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-01 09:56:06,335 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-07-01 09:56:06,336 INFO L430 AbstractCegarLoop]: === Iteration 4 === [DeviceThreadWithAssertErr0ASSERT_VIOLATIONASSERT]=== [2021-07-01 09:56:06,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-01 09:56:06,336 INFO L82 PathProgramCache]: Analyzing trace with hash -1529934346, now seen corresponding path program 3 times [2021-07-01 09:56:06,336 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-01 09:56:06,337 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482070957] [2021-07-01 09:56:06,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-01 09:56:06,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-01 09:56:06,343 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-01 09:56:06,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-01 09:56:06,348 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-01 09:56:06,361 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-01 09:56:06,361 INFO L605 BasicCegarLoop]: Counterexample might be feasible [2021-07-01 09:56:06,361 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-07-01 09:56:06,361 INFO L301 ceAbstractionStarter]: Result for error location DeviceThreadWithAssertThread1of1ForFork1 was UNSAFE (2/2) [2021-07-01 09:56:06,363 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-07-01 09:56:06,374 INFO L202 PluginConnector]: Adding new model bluetooth-incorrect05.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.07 09:56:06 BasicIcfg [2021-07-01 09:56:06,374 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-01 09:56:06,375 INFO L168 Benchmark]: Toolchain (without parser) took 2525.35 ms. Allocated memory was 218.1 MB in the beginning and 307.2 MB in the end (delta: 89.1 MB). Free memory was 197.9 MB in the beginning and 221.6 MB in the end (delta: -23.7 MB). Peak memory consumption was 64.9 MB. Max. memory is 8.0 GB. [2021-07-01 09:56:06,383 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.12 ms. Allocated memory is still 218.1 MB. Free memory is still 198.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-07-01 09:56:06,384 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.99 ms. Allocated memory is still 218.1 MB. Free memory was 197.8 MB in the beginning and 196.0 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-07-01 09:56:06,385 INFO L168 Benchmark]: Boogie Preprocessor took 15.29 ms. Allocated memory is still 218.1 MB. Free memory was 196.0 MB in the beginning and 195.0 MB in the end (delta: 931.5 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-07-01 09:56:06,387 INFO L168 Benchmark]: RCFGBuilder took 338.32 ms. Allocated memory is still 218.1 MB. Free memory was 194.9 MB in the beginning and 180.6 MB in the end (delta: 14.4 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-07-01 09:56:06,388 INFO L168 Benchmark]: TraceAbstraction took 2136.11 ms. Allocated memory was 218.1 MB in the beginning and 307.2 MB in the end (delta: 89.1 MB). Free memory was 180.1 MB in the beginning and 221.6 MB in the end (delta: -41.5 MB). Peak memory consumption was 47.1 MB. Max. memory is 8.0 GB. [2021-07-01 09:56:06,389 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 218.1 MB. Free memory is still 198.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 30.99 ms. Allocated memory is still 218.1 MB. Free memory was 197.8 MB in the beginning and 196.0 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 15.29 ms. Allocated memory is still 218.1 MB. Free memory was 196.0 MB in the beginning and 195.0 MB in the end (delta: 931.5 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 338.32 ms. Allocated memory is still 218.1 MB. Free memory was 194.9 MB in the beginning and 180.6 MB in the end (delta: 14.4 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2136.11 ms. Allocated memory was 218.1 MB in the beginning and 307.2 MB in the end (delta: 89.1 MB). Free memory was 180.1 MB in the beginning and 221.6 MB in the end (delta: -41.5 MB). Peak memory consumption was 47.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 38]: assertion can be violated assertion can be violated We found a FailurePath: [L14] 0 pendingIo := 1; VAL [pendingIo=1] [L15] 0 stopped := false; VAL [pendingIo=1, stopped=false] [L16] 0 stoppingEvent := false; VAL [pendingIo=1, stopped=false, stoppingEvent=false] [L17] 0 stoppingFlag := false; VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L19] FORK 0 fork 0 ServerThread(); VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L21] FORK 0 fork 1 DeviceThreadWithAssert(); VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L60] 2 assume !stoppingFlag; VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=false] [L82] 1 stoppingFlag := true; VAL [pendingIo=1, stopped=false, stoppingEvent=false, stoppingFlag=true] [L92] 1 pendingIo := pendingIo - 1; [L93] COND TRUE 1 pendingIo == 0 [L94] 1 stoppingEvent := true; VAL [pendingIo=0, stopped=false, stoppingEvent=true, stoppingFlag=true] [L84] 1 assume stoppingEvent; VAL [pendingIo=0, stopped=false, stoppingEvent=true, stoppingFlag=true] [L85] 1 stopped := true; VAL [pendingIo=0, stopped=true, stoppingEvent=true, stoppingFlag=true] [L61] 2 pendingIo := pendingIo + 1; VAL [pendingIo=1, stopped=true, stoppingEvent=true, stoppingFlag=true] [L38] 2 assert !stopped; VAL [pendingIo=1, stopped=true, stoppingEvent=true, stoppingFlag=true] - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 10 procedures, 62 locations, 8 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.3ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 60.6ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 53.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: DeviceThreadWithAssertThread1of1ForFork1 with 1 thread instances CFG has 10 procedures, 62 locations, 8 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 13.4ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 1909.1ms, OverallIterations: 4, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 1553.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 24.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 13 SDtfs, 2 SDslu, 7 SDs, 0 SdLazy, 60 SolverSat, 32 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 66.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 41.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=239occurred in iteration=3, InterpolantAutomatonStates: 11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 8.3ms SsaConstructionTime, 30.0ms SatisfiabilityAnalysisTime, 123.7ms InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 79 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 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...