/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/float-benchs/addsub_double_exact_true-unreach-call_true-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 40ef5092 Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/float-benchs/addsub_double_exact_true-unreach-call_true-termination.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e20164d66b413fd1e6480d779b873570f1c551b2 ....................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/float-benchs/addsub_double_exact_true-unreach-call_true-termination.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e20164d66b413fd1e6480d779b873570f1c551b2 ................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-40ef509 [2018-09-20 13:50:05,952 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 13:50:05,954 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 13:50:05,966 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 13:50:05,966 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 13:50:05,968 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 13:50:05,969 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 13:50:05,971 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 13:50:05,973 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 13:50:05,974 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 13:50:05,975 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 13:50:05,975 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 13:50:05,976 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 13:50:05,978 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 13:50:05,979 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 13:50:05,980 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 13:50:05,981 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 13:50:05,983 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 13:50:05,985 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 13:50:05,987 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 13:50:05,988 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 13:50:05,989 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 13:50:05,992 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 13:50:05,992 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 13:50:05,993 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 13:50:05,994 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 13:50:05,995 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 13:50:05,996 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 13:50:05,997 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 13:50:05,998 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 13:50:05,998 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 13:50:05,999 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 13:50:05,999 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 13:50:06,000 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 13:50:06,001 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 13:50:06,002 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 13:50:06,002 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-20 13:50:06,018 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 13:50:06,019 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 13:50:06,020 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 13:50:06,020 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 13:50:06,021 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 13:50:06,021 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 13:50:06,021 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 13:50:06,021 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 13:50:06,022 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 13:50:06,022 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-20 13:50:06,022 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 13:50:06,022 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 13:50:06,023 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 13:50:06,023 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 13:50:06,023 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 13:50:06,023 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 13:50:06,023 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 13:50:06,024 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 13:50:06,024 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 13:50:06,024 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 13:50:06,024 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 13:50:06,025 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 13:50:06,025 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 13:50:06,025 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 13:50:06,025 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 13:50:06,026 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 13:50:06,026 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-20 13:50:06,026 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 13:50:06,026 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-20 13:50:06,026 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e20164d66b413fd1e6480d779b873570f1c551b2 [2018-09-20 13:50:06,074 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 13:50:06,087 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 13:50:06,091 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 13:50:06,092 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 13:50:06,093 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 13:50:06,093 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/addsub_double_exact_true-unreach-call_true-termination.c [2018-09-20 13:50:06,440 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97e26885f/43106fc7820244419c64ba377b4c8526/FLAGa6d8f916c [2018-09-20 13:50:06,602 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 13:50:06,603 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/addsub_double_exact_true-unreach-call_true-termination.c [2018-09-20 13:50:06,609 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97e26885f/43106fc7820244419c64ba377b4c8526/FLAGa6d8f916c [2018-09-20 13:50:06,625 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97e26885f/43106fc7820244419c64ba377b4c8526 [2018-09-20 13:50:06,629 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 13:50:06,632 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 13:50:06,634 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 13:50:06,634 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 13:50:06,641 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 13:50:06,642 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:50:06" (1/1) ... [2018-09-20 13:50:06,645 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b5eb9c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:50:06, skipping insertion in model container [2018-09-20 13:50:06,645 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:50:06" (1/1) ... [2018-09-20 13:50:06,657 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 13:50:06,895 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 13:50:06,920 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 13:50:06,926 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 13:50:06,940 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:50:06 WrapperNode [2018-09-20 13:50:06,940 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 13:50:06,941 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 13:50:06,941 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 13:50:06,941 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 13:50:06,958 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:50:06" (1/1) ... [2018-09-20 13:50:06,958 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:50:06" (1/1) ... [2018-09-20 13:50:06,965 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:50:06" (1/1) ... [2018-09-20 13:50:06,965 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:50:06" (1/1) ... [2018-09-20 13:50:06,967 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:50:06" (1/1) ... [2018-09-20 13:50:06,971 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:50:06" (1/1) ... [2018-09-20 13:50:06,972 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:50:06" (1/1) ... [2018-09-20 13:50:06,973 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 13:50:06,974 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 13:50:06,974 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 13:50:06,974 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 13:50:06,975 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:50:06" (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 [2018-09-20 13:50:07,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 13:50:07,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 13:50:07,058 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-09-20 13:50:07,058 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 13:50:07,058 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 13:50:07,058 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-09-20 13:50:07,059 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 13:50:07,059 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 13:50:07,059 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 13:50:07,317 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 13:50:07,318 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:50:07 BoogieIcfgContainer [2018-09-20 13:50:07,318 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 13:50:07,319 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 13:50:07,320 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 13:50:07,324 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 13:50:07,324 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:50:06" (1/3) ... [2018-09-20 13:50:07,325 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66f47aa1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:50:07, skipping insertion in model container [2018-09-20 13:50:07,325 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:50:06" (2/3) ... [2018-09-20 13:50:07,326 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66f47aa1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:50:07, skipping insertion in model container [2018-09-20 13:50:07,326 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:50:07" (3/3) ... [2018-09-20 13:50:07,329 INFO L112 eAbstractionObserver]: Analyzing ICFG addsub_double_exact_true-unreach-call_true-termination.c [2018-09-20 13:50:07,340 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 13:50:07,349 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-20 13:50:07,401 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 13:50:07,402 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 13:50:07,402 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 13:50:07,403 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 13:50:07,403 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 13:50:07,403 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 13:50:07,403 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 13:50:07,403 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 13:50:07,403 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 13:50:07,423 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2018-09-20 13:50:07,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-09-20 13:50:07,431 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 13:50:07,432 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 13:50:07,434 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 13:50:07,441 INFO L82 PathProgramCache]: Analyzing trace with hash 997393992, now seen corresponding path program 1 times [2018-09-20 13:50:07,443 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-20 13:50:07,444 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-20 13:50:07,503 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 13:50:07,504 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 13:50:07,504 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 13:50:07,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 13:50:07,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 13:50:07,575 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-20 13:50:07,605 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:50:07 BoogieIcfgContainer [2018-09-20 13:50:07,606 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-20 13:50:07,607 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-20 13:50:07,607 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-20 13:50:07,607 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-20 13:50:07,608 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:50:07" (3/4) ... [2018-09-20 13:50:07,613 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-09-20 13:50:07,616 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-20 13:50:07,617 INFO L168 Benchmark]: Toolchain (without parser) took 987.46 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 117.4 MB). Free memory was 950.5 MB in the beginning and 1.1 GB in the end (delta: -134.3 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 13:50:07,625 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 13:50:07,627 INFO L168 Benchmark]: CACSL2BoogieTranslator took 306.90 ms. Allocated memory is still 1.0 GB. Free memory was 950.5 MB in the beginning and 939.8 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-09-20 13:50:07,629 INFO L168 Benchmark]: Boogie Preprocessor took 32.33 ms. Allocated memory is still 1.0 GB. Free memory is still 939.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 13:50:07,630 INFO L168 Benchmark]: RCFGBuilder took 344.31 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 117.4 MB). Free memory was 939.8 MB in the beginning and 1.1 GB in the end (delta: -160.7 MB). Peak memory consumption was 26.7 MB. Max. memory is 11.5 GB. [2018-09-20 13:50:07,631 INFO L168 Benchmark]: TraceAbstraction took 286.46 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 15.7 MB). Peak memory consumption was 15.7 MB. Max. memory is 11.5 GB. [2018-09-20 13:50:07,633 INFO L168 Benchmark]: Witness Printer took 9.44 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 13:50:07,638 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 306.90 ms. Allocated memory is still 1.0 GB. Free memory was 950.5 MB in the beginning and 939.8 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 32.33 ms. Allocated memory is still 1.0 GB. Free memory is still 939.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 344.31 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 117.4 MB). Free memory was 939.8 MB in the beginning and 1.1 GB in the end (delta: -160.7 MB). Peak memory consumption was 26.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 286.46 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 15.7 MB). Peak memory consumption was 15.7 MB. Max. memory is 11.5 GB. * Witness Printer took 9.44 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 4]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryArithmeticDOUBLEoperation at line 11. Possible FailurePath: [L8] double x, y, z, r; [L10] x = 1e8 [L11] y = x + 1 [L12] z = x - 1 [L13] r = y - z VAL [x=100000000] [L14] CALL __VERIFIER_assert(r == 2.) VAL [\old(cond)=0] [L4] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L4] __VERIFIER_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 17 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-40ef509 [2018-09-20 13:50:10,145 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 13:50:10,149 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 13:50:10,164 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 13:50:10,164 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 13:50:10,166 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 13:50:10,167 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 13:50:10,169 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 13:50:10,171 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 13:50:10,172 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 13:50:10,173 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 13:50:10,174 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 13:50:10,175 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 13:50:10,176 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 13:50:10,177 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 13:50:10,178 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 13:50:10,179 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 13:50:10,181 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 13:50:10,184 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 13:50:10,186 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 13:50:10,187 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 13:50:10,189 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 13:50:10,191 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 13:50:10,191 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 13:50:10,192 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 13:50:10,193 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 13:50:10,195 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 13:50:10,196 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 13:50:10,197 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 13:50:10,198 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 13:50:10,198 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 13:50:10,199 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 13:50:10,200 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 13:50:10,200 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 13:50:10,201 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 13:50:10,202 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 13:50:10,202 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-20 13:50:10,225 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 13:50:10,225 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 13:50:10,226 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 13:50:10,226 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 13:50:10,227 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 13:50:10,227 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 13:50:10,227 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 13:50:10,228 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 13:50:10,228 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 13:50:10,228 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 13:50:10,228 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 13:50:10,228 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 13:50:10,229 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 13:50:10,229 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 13:50:10,230 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-20 13:50:10,230 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-20 13:50:10,230 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 13:50:10,230 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 13:50:10,230 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 13:50:10,230 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 13:50:10,231 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 13:50:10,231 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 13:50:10,231 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 13:50:10,231 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 13:50:10,231 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 13:50:10,233 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 13:50:10,233 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 13:50:10,233 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-20 13:50:10,233 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 13:50:10,233 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-20 13:50:10,234 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-20 13:50:10,234 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e20164d66b413fd1e6480d779b873570f1c551b2 [2018-09-20 13:50:10,288 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 13:50:10,301 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 13:50:10,305 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 13:50:10,307 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 13:50:10,307 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 13:50:10,308 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/addsub_double_exact_true-unreach-call_true-termination.c [2018-09-20 13:50:10,711 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0ad364fb/a3ed67527d83402a957ca07022685b5c/FLAGef15e3d89 [2018-09-20 13:50:10,886 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 13:50:10,887 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/addsub_double_exact_true-unreach-call_true-termination.c [2018-09-20 13:50:10,896 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0ad364fb/a3ed67527d83402a957ca07022685b5c/FLAGef15e3d89 [2018-09-20 13:50:10,921 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0ad364fb/a3ed67527d83402a957ca07022685b5c [2018-09-20 13:50:10,925 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 13:50:10,929 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 13:50:10,930 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 13:50:10,930 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 13:50:10,937 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 13:50:10,938 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:50:10" (1/1) ... [2018-09-20 13:50:10,942 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d3e53a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:50:10, skipping insertion in model container [2018-09-20 13:50:10,942 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:50:10" (1/1) ... [2018-09-20 13:50:10,954 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 13:50:11,168 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 13:50:11,190 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 13:50:11,195 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 13:50:11,212 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:50:11 WrapperNode [2018-09-20 13:50:11,212 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 13:50:11,213 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 13:50:11,213 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 13:50:11,213 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 13:50:11,229 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:50:11" (1/1) ... [2018-09-20 13:50:11,230 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:50:11" (1/1) ... [2018-09-20 13:50:11,239 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:50:11" (1/1) ... [2018-09-20 13:50:11,239 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:50:11" (1/1) ... [2018-09-20 13:50:11,242 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:50:11" (1/1) ... [2018-09-20 13:50:11,245 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:50:11" (1/1) ... [2018-09-20 13:50:11,247 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:50:11" (1/1) ... [2018-09-20 13:50:11,249 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 13:50:11,250 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 13:50:11,250 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 13:50:11,250 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 13:50:11,252 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:50:11" (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 [2018-09-20 13:50:11,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 13:50:11,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 13:50:11,328 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-09-20 13:50:11,328 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 13:50:11,328 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 13:50:11,328 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-09-20 13:50:11,329 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 13:50:11,329 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 13:50:11,329 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 13:50:11,591 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 13:50:11,591 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:50:11 BoogieIcfgContainer [2018-09-20 13:50:11,591 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 13:50:11,593 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 13:50:11,593 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 13:50:11,596 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 13:50:11,596 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:50:10" (1/3) ... [2018-09-20 13:50:11,597 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49875d4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:50:11, skipping insertion in model container [2018-09-20 13:50:11,597 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:50:11" (2/3) ... [2018-09-20 13:50:11,598 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49875d4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:50:11, skipping insertion in model container [2018-09-20 13:50:11,598 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:50:11" (3/3) ... [2018-09-20 13:50:11,600 INFO L112 eAbstractionObserver]: Analyzing ICFG addsub_double_exact_true-unreach-call_true-termination.c [2018-09-20 13:50:11,610 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 13:50:11,619 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-20 13:50:11,673 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 13:50:11,673 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 13:50:11,674 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 13:50:11,674 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 13:50:11,674 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 13:50:11,674 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 13:50:11,674 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 13:50:11,675 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 13:50:11,675 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 13:50:11,695 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2018-09-20 13:50:11,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-09-20 13:50:11,702 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 13:50:11,703 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 13:50:11,705 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 13:50:11,711 INFO L82 PathProgramCache]: Analyzing trace with hash 997393992, now seen corresponding path program 1 times [2018-09-20 13:50:11,716 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 13:50:11,716 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-09-20 13:50:11,727 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 13:50:11,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 13:50:11,980 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 13:50:12,201 WARN L178 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 5 [2018-09-20 13:50:12,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 13:50:12,250 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 13:50:12,264 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 13:50:12,265 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-20 13:50:12,270 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-20 13:50:12,282 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-20 13:50:12,283 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-09-20 13:50:12,285 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 5 states. [2018-09-20 13:50:12,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 13:50:12,395 INFO L93 Difference]: Finished difference Result 24 states and 23 transitions. [2018-09-20 13:50:12,396 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-09-20 13:50:12,398 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2018-09-20 13:50:12,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 13:50:12,405 INFO L225 Difference]: With dead ends: 24 [2018-09-20 13:50:12,405 INFO L226 Difference]: Without dead ends: 0 [2018-09-20 13:50:12,409 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-09-20 13:50:12,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-20 13:50:12,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-20 13:50:12,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-20 13:50:12,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-20 13:50:12,436 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2018-09-20 13:50:12,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 13:50:12,436 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-20 13:50:12,437 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-20 13:50:12,437 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-20 13:50:12,437 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-20 13:50:12,441 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-20 13:50:12,514 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-09-20 13:50:12,515 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-09-20 13:50:12,515 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-09-20 13:50:12,515 INFO L429 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-09-20 13:50:12,515 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-09-20 13:50:12,515 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-09-20 13:50:12,516 INFO L422 ceAbstractionStarter]: At program point L14(line 14) the Hoare annotation is: (= main_~r~0 (let ((.cse0 ((_ to_fp 11 53) RNE 100000000.0)) (.cse1 ((_ to_fp 11 53) RNE (_ bv1 32)))) (fp.sub RNE (fp.add RNE .cse0 .cse1) (fp.sub RNE .cse0 .cse1)))) [2018-09-20 13:50:12,516 INFO L429 ceAbstractionStarter]: At program point mainENTRY(lines 6 16) the Hoare annotation is: true [2018-09-20 13:50:12,516 INFO L426 ceAbstractionStarter]: For program point L14-1(line 14) no Hoare annotation was computed. [2018-09-20 13:50:12,516 INFO L426 ceAbstractionStarter]: For program point mainFINAL(lines 6 16) no Hoare annotation was computed. [2018-09-20 13:50:12,516 INFO L426 ceAbstractionStarter]: For program point mainEXIT(lines 6 16) no Hoare annotation was computed. [2018-09-20 13:50:12,517 INFO L426 ceAbstractionStarter]: For program point L4-3(line 4) no Hoare annotation was computed. [2018-09-20 13:50:12,520 INFO L429 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(line 4) the Hoare annotation is: true [2018-09-20 13:50:12,520 INFO L426 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(line 4) no Hoare annotation was computed. [2018-09-20 13:50:12,521 INFO L426 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2018-09-20 13:50:12,521 INFO L426 ceAbstractionStarter]: For program point L4(line 4) no Hoare annotation was computed. [2018-09-20 13:50:12,521 INFO L426 ceAbstractionStarter]: For program point L4-1(line 4) no Hoare annotation was computed. [2018-09-20 13:50:12,527 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:50:12 BoogieIcfgContainer [2018-09-20 13:50:12,529 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-20 13:50:12,530 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-20 13:50:12,531 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-20 13:50:12,532 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-20 13:50:12,532 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:50:11" (3/4) ... [2018-09-20 13:50:12,537 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-09-20 13:50:12,545 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-09-20 13:50:12,546 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-09-20 13:50:12,546 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-09-20 13:50:12,551 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-09-20 13:50:12,553 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-09-20 13:50:12,553 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-09-20 13:50:12,554 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-09-20 13:50:12,600 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-09-20 13:50:12,600 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-20 13:50:12,601 INFO L168 Benchmark]: Toolchain (without parser) took 1674.94 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 951.9 MB in the beginning and 1.1 GB in the end (delta: -148.9 MB). Peak memory consumption was 1.5 MB. Max. memory is 11.5 GB. [2018-09-20 13:50:12,602 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 13:50:12,603 INFO L168 Benchmark]: CACSL2BoogieTranslator took 282.13 ms. Allocated memory is still 1.0 GB. Free memory was 951.9 MB in the beginning and 941.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-09-20 13:50:12,603 INFO L168 Benchmark]: Boogie Preprocessor took 37.01 ms. Allocated memory is still 1.0 GB. Free memory is still 941.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 13:50:12,604 INFO L168 Benchmark]: RCFGBuilder took 341.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 941.1 MB in the beginning and 1.1 GB in the end (delta: -194.9 MB). Peak memory consumption was 27.0 MB. Max. memory is 11.5 GB. [2018-09-20 13:50:12,605 INFO L168 Benchmark]: TraceAbstraction took 937.34 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 35.2 MB). Peak memory consumption was 35.2 MB. Max. memory is 11.5 GB. [2018-09-20 13:50:12,606 INFO L168 Benchmark]: Witness Printer took 69.79 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 13:50:12,611 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 282.13 ms. Allocated memory is still 1.0 GB. Free memory was 951.9 MB in the beginning and 941.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 37.01 ms. Allocated memory is still 1.0 GB. Free memory is still 941.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 341.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 941.1 MB in the beginning and 1.1 GB in the end (delta: -194.9 MB). Peak memory consumption was 27.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 937.34 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 35.2 MB). Peak memory consumption was 35.2 MB. Max. memory is 11.5 GB. * Witness Printer took 69.79 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 17 locations, 1 error locations. SAFE Result, 0.8s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 11 SDtfs, 7 SDslu, 27 SDs, 0 SdLazy, 7 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 6 NumberOfFragments, 25 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 280 SizeOfPredicates, 5 NumberOfNonLiveVariables, 20 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...