./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/floats-cbmc-regression/float-no-simp3_true-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 91b1670e 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 /storage/repos/svcomp/c/floats-cbmc-regression/float-no-simp3_true-unreach-call_true-termination.i -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 4e4f711715c9ba9b74051d365fc69961816436d0 .......................................................................................................................................................................................................................... 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 /storage/repos/svcomp/c/floats-cbmc-regression/float-no-simp3_true-unreach-call_true-termination.i -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 4e4f711715c9ba9b74051d365fc69961816436d0 .................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-91b1670 [2018-11-28 17:39:18,941 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 17:39:18,945 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 17:39:18,958 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 17:39:18,959 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 17:39:18,960 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 17:39:18,961 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 17:39:18,963 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 17:39:18,965 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 17:39:18,966 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 17:39:18,967 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 17:39:18,967 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 17:39:18,968 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 17:39:18,970 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 17:39:18,971 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 17:39:18,972 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 17:39:18,973 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 17:39:18,975 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 17:39:18,977 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 17:39:18,979 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 17:39:18,980 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 17:39:18,981 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 17:39:18,984 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 17:39:18,984 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 17:39:18,985 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 17:39:18,985 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 17:39:18,987 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 17:39:18,988 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 17:39:18,989 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 17:39:18,990 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 17:39:18,990 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 17:39:18,992 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 17:39:18,992 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 17:39:18,992 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 17:39:18,993 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 17:39:18,994 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 17:39:18,995 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 17:39:19,016 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 17:39:19,016 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 17:39:19,017 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 17:39:19,018 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 17:39:19,018 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 17:39:19,018 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 17:39:19,018 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 17:39:19,020 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 17:39:19,020 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 17:39:19,020 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 17:39:19,020 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 17:39:19,021 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 17:39:19,021 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 17:39:19,021 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 17:39:19,021 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 17:39:19,022 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 17:39:19,022 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 17:39:19,023 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 17:39:19,023 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 17:39:19,023 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 17:39:19,023 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 17:39:19,023 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 17:39:19,023 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 17:39:19,026 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 17:39:19,026 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 17:39:19,026 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 17:39:19,027 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 17:39:19,027 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 17:39:19,027 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 17:39:19,027 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 17:39:19,029 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 -> 4e4f711715c9ba9b74051d365fc69961816436d0 [2018-11-28 17:39:19,086 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 17:39:19,106 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 17:39:19,110 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 17:39:19,112 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 17:39:19,112 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 17:39:19,113 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/floats-cbmc-regression/float-no-simp3_true-unreach-call_true-termination.i [2018-11-28 17:39:19,178 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/210a55036/8cb6fcc92ae14d349e4b9e089db75347/FLAGb1aceb1cb [2018-11-28 17:39:19,666 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 17:39:19,667 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/floats-cbmc-regression/float-no-simp3_true-unreach-call_true-termination.i [2018-11-28 17:39:19,674 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/210a55036/8cb6fcc92ae14d349e4b9e089db75347/FLAGb1aceb1cb [2018-11-28 17:39:20,008 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/210a55036/8cb6fcc92ae14d349e4b9e089db75347 [2018-11-28 17:39:20,011 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 17:39:20,013 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 17:39:20,017 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 17:39:20,017 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 17:39:20,025 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 17:39:20,027 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:39:20" (1/1) ... [2018-11-28 17:39:20,030 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42f5feda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:39:20, skipping insertion in model container [2018-11-28 17:39:20,031 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:39:20" (1/1) ... [2018-11-28 17:39:20,040 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 17:39:20,057 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 17:39:20,228 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 17:39:20,235 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 17:39:20,253 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 17:39:20,270 INFO L195 MainTranslator]: Completed translation [2018-11-28 17:39:20,271 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:39:20 WrapperNode [2018-11-28 17:39:20,271 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 17:39:20,272 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 17:39:20,272 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 17:39:20,273 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 17:39:20,284 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:39:20" (1/1) ... [2018-11-28 17:39:20,290 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:39:20" (1/1) ... [2018-11-28 17:39:20,300 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 17:39:20,300 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 17:39:20,301 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 17:39:20,301 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 17:39:20,313 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:39:20" (1/1) ... [2018-11-28 17:39:20,313 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:39:20" (1/1) ... [2018-11-28 17:39:20,314 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:39:20" (1/1) ... [2018-11-28 17:39:20,314 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:39:20" (1/1) ... [2018-11-28 17:39:20,320 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:39:20" (1/1) ... [2018-11-28 17:39:20,323 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:39:20" (1/1) ... [2018-11-28 17:39:20,324 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:39:20" (1/1) ... [2018-11-28 17:39:20,326 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 17:39:20,326 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 17:39:20,327 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 17:39:20,327 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 17:39:20,328 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:39:20" (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 [2018-11-28 17:39:20,493 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 17:39:20,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 17:39:20,494 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 17:39:20,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 17:39:20,494 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 17:39:20,494 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 17:39:20,692 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 17:39:20,693 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-28 17:39:20,693 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:39:20 BoogieIcfgContainer [2018-11-28 17:39:20,693 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 17:39:20,695 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 17:39:20,695 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 17:39:20,698 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 17:39:20,699 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:39:20" (1/3) ... [2018-11-28 17:39:20,700 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50c6f70f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:39:20, skipping insertion in model container [2018-11-28 17:39:20,700 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:39:20" (2/3) ... [2018-11-28 17:39:20,701 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50c6f70f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:39:20, skipping insertion in model container [2018-11-28 17:39:20,701 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:39:20" (3/3) ... [2018-11-28 17:39:20,703 INFO L112 eAbstractionObserver]: Analyzing ICFG float-no-simp3_true-unreach-call_true-termination.i [2018-11-28 17:39:20,714 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 17:39:20,723 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 17:39:20,742 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 17:39:20,776 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 17:39:20,777 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 17:39:20,777 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 17:39:20,777 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 17:39:20,777 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 17:39:20,777 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 17:39:20,778 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 17:39:20,778 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 17:39:20,778 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 17:39:20,796 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2018-11-28 17:39:20,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-28 17:39:20,802 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:39:20,803 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-28 17:39:20,805 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:39:20,811 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:39:20,812 INFO L82 PathProgramCache]: Analyzing trace with hash 1297293521, now seen corresponding path program 1 times [2018-11-28 17:39:20,814 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 17:39:20,815 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 17:39:20,869 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 17:39:20,869 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:39:20,870 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 17:39:20,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 17:39:20,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 17:39:20,927 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 17:39:20,946 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 05:39:20 BoogieIcfgContainer [2018-11-28 17:39:20,946 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 17:39:20,947 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 17:39:20,947 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 17:39:20,947 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 17:39:20,948 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:39:20" (3/4) ... [2018-11-28 17:39:20,953 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 17:39:20,954 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 17:39:20,955 INFO L168 Benchmark]: Toolchain (without parser) took 943.08 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 951.3 MB in the beginning and 1.1 GB in the end (delta: -152.5 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:39:20,958 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:39:20,958 INFO L168 Benchmark]: CACSL2BoogieTranslator took 254.08 ms. Allocated memory is still 1.0 GB. Free memory was 951.3 MB in the beginning and 940.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 17:39:20,960 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.88 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:39:20,961 INFO L168 Benchmark]: Boogie Preprocessor took 25.74 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:39:20,962 INFO L168 Benchmark]: RCFGBuilder took 367.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -178.8 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. [2018-11-28 17:39:20,964 INFO L168 Benchmark]: TraceAbstraction took 251.66 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: 15.6 MB). Peak memory consumption was 15.6 MB. Max. memory is 11.5 GB. [2018-11-28 17:39:20,965 INFO L168 Benchmark]: Witness Printer took 7.16 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. [2018-11-28 17:39:20,971 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 254.08 ms. Allocated memory is still 1.0 GB. Free memory was 951.3 MB in the beginning and 940.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 27.88 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 25.74 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 367.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -178.8 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 251.66 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: 15.6 MB). Peak memory consumption was 15.6 MB. Max. memory is 11.5 GB. * Witness Printer took 7.16 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: - UnprovableResult [Line: 8]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of to_int at line 8, overapproximation of someBinaryArithmeticFLOAToperation at line 6. Possible FailurePath: [L6] float fs1=2.0f/6.0f; [L7] float fs2=fs1*6.0f; [L8] COND TRUE !((int)fs2==2) [L8] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 12 locations, 1 error locations. UNSAFE Result, 0.1s 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=12occurred 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, 7 NumberOfCodeBlocks, 7 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 0.1.24-91b1670 [2018-11-28 17:39:23,392 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 17:39:23,393 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 17:39:23,406 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 17:39:23,406 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 17:39:23,407 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 17:39:23,409 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 17:39:23,411 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 17:39:23,412 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 17:39:23,413 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 17:39:23,414 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 17:39:23,415 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 17:39:23,416 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 17:39:23,417 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 17:39:23,418 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 17:39:23,419 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 17:39:23,419 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 17:39:23,421 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 17:39:23,424 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 17:39:23,426 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 17:39:23,427 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 17:39:23,428 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 17:39:23,431 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 17:39:23,431 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 17:39:23,431 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 17:39:23,433 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 17:39:23,434 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 17:39:23,435 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 17:39:23,436 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 17:39:23,437 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 17:39:23,437 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 17:39:23,438 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 17:39:23,438 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 17:39:23,439 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 17:39:23,440 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 17:39:23,441 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 17:39:23,441 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-28 17:39:23,461 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 17:39:23,461 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 17:39:23,462 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 17:39:23,462 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 17:39:23,463 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 17:39:23,463 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 17:39:23,463 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 17:39:23,464 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 17:39:23,464 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 17:39:23,464 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 17:39:23,464 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 17:39:23,464 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 17:39:23,464 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 17:39:23,465 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 17:39:23,465 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-28 17:39:23,465 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-28 17:39:23,465 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 17:39:23,465 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 17:39:23,465 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 17:39:23,466 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 17:39:23,466 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 17:39:23,466 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 17:39:23,466 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 17:39:23,466 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 17:39:23,467 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 17:39:23,467 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 17:39:23,467 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 17:39:23,467 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 17:39:23,467 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-28 17:39:23,467 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 17:39:23,468 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-11-28 17:39:23,468 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-28 17:39:23,468 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 -> 4e4f711715c9ba9b74051d365fc69961816436d0 [2018-11-28 17:39:23,504 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 17:39:23,517 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 17:39:23,521 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 17:39:23,522 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 17:39:23,523 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 17:39:23,524 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/floats-cbmc-regression/float-no-simp3_true-unreach-call_true-termination.i [2018-11-28 17:39:23,578 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be2d4d4ec/0083b60524c44eb798df3f8e1fb4006d/FLAGb1bc38f53 [2018-11-28 17:39:24,059 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 17:39:24,060 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/floats-cbmc-regression/float-no-simp3_true-unreach-call_true-termination.i [2018-11-28 17:39:24,067 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be2d4d4ec/0083b60524c44eb798df3f8e1fb4006d/FLAGb1bc38f53 [2018-11-28 17:39:24,382 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be2d4d4ec/0083b60524c44eb798df3f8e1fb4006d [2018-11-28 17:39:24,386 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 17:39:24,388 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 17:39:24,390 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 17:39:24,391 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 17:39:24,395 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 17:39:24,396 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:39:24" (1/1) ... [2018-11-28 17:39:24,402 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3beb3d29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:39:24, skipping insertion in model container [2018-11-28 17:39:24,402 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:39:24" (1/1) ... [2018-11-28 17:39:24,411 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 17:39:24,433 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 17:39:24,649 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 17:39:24,660 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 17:39:24,676 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 17:39:24,689 INFO L195 MainTranslator]: Completed translation [2018-11-28 17:39:24,689 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:39:24 WrapperNode [2018-11-28 17:39:24,689 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 17:39:24,690 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 17:39:24,690 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 17:39:24,690 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 17:39:24,699 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:39:24" (1/1) ... [2018-11-28 17:39:24,706 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:39:24" (1/1) ... [2018-11-28 17:39:24,714 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 17:39:24,715 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 17:39:24,715 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 17:39:24,715 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 17:39:24,725 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:39:24" (1/1) ... [2018-11-28 17:39:24,726 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:39:24" (1/1) ... [2018-11-28 17:39:24,727 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:39:24" (1/1) ... [2018-11-28 17:39:24,727 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:39:24" (1/1) ... [2018-11-28 17:39:24,738 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:39:24" (1/1) ... [2018-11-28 17:39:24,740 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:39:24" (1/1) ... [2018-11-28 17:39:24,742 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:39:24" (1/1) ... [2018-11-28 17:39:24,751 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 17:39:24,751 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 17:39:24,753 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 17:39:24,753 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 17:39:24,754 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:39:24" (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 [2018-11-28 17:39:24,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 17:39:24,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 17:39:24,875 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 17:39:24,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 17:39:24,875 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 17:39:24,875 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 17:39:25,039 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 17:39:25,040 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-28 17:39:25,040 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:39:25 BoogieIcfgContainer [2018-11-28 17:39:25,040 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 17:39:25,041 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 17:39:25,042 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 17:39:25,045 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 17:39:25,045 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:39:24" (1/3) ... [2018-11-28 17:39:25,046 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ce5eb4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:39:25, skipping insertion in model container [2018-11-28 17:39:25,047 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:39:24" (2/3) ... [2018-11-28 17:39:25,047 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ce5eb4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:39:25, skipping insertion in model container [2018-11-28 17:39:25,047 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:39:25" (3/3) ... [2018-11-28 17:39:25,049 INFO L112 eAbstractionObserver]: Analyzing ICFG float-no-simp3_true-unreach-call_true-termination.i [2018-11-28 17:39:25,060 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 17:39:25,067 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 17:39:25,082 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 17:39:25,113 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 17:39:25,113 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 17:39:25,114 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 17:39:25,114 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 17:39:25,114 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 17:39:25,114 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 17:39:25,114 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 17:39:25,114 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 17:39:25,114 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 17:39:25,134 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2018-11-28 17:39:25,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-28 17:39:25,140 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:39:25,141 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-28 17:39:25,144 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:39:25,151 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:39:25,151 INFO L82 PathProgramCache]: Analyzing trace with hash 1297293521, now seen corresponding path program 1 times [2018-11-28 17:39:25,156 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 17:39:25,158 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) [2018-11-28 17:39:25,173 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-11-28 17:39:25,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 17:39:25,237 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 17:39:25,306 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 17:39:25,307 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 17:39:25,328 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 17:39:25,328 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 17:39:25,337 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 17:39:25,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 17:39:25,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 17:39:25,366 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 3 states. [2018-11-28 17:39:25,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 17:39:25,418 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2018-11-28 17:39:25,420 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 17:39:25,422 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-11-28 17:39:25,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 17:39:25,431 INFO L225 Difference]: With dead ends: 16 [2018-11-28 17:39:25,432 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 17:39:25,435 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 17:39:25,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 17:39:25,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 17:39:25,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 17:39:25,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 17:39:25,469 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2018-11-28 17:39:25,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 17:39:25,470 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 17:39:25,470 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 17:39:25,470 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 17:39:25,470 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 17:39:25,476 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-28 17:39:25,593 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-28 17:39:25,597 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-28 17:39:25,597 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-28 17:39:25,597 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-28 17:39:25,597 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-28 17:39:25,598 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-28 17:39:25,598 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 3 9) the Hoare annotation is: true [2018-11-28 17:39:25,598 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 3 9) no Hoare annotation was computed. [2018-11-28 17:39:25,598 INFO L448 ceAbstractionStarter]: For program point L8(line 8) no Hoare annotation was computed. [2018-11-28 17:39:25,598 INFO L448 ceAbstractionStarter]: For program point L8-1(line 8) no Hoare annotation was computed. [2018-11-28 17:39:25,599 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2018-11-28 17:39:25,599 INFO L448 ceAbstractionStarter]: For program point L8-3(lines 3 9) no Hoare annotation was computed. [2018-11-28 17:39:25,605 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 05:39:25 BoogieIcfgContainer [2018-11-28 17:39:25,605 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 17:39:25,606 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 17:39:25,610 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 17:39:25,610 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 17:39:25,611 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:39:25" (3/4) ... [2018-11-28 17:39:25,616 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 17:39:25,627 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-28 17:39:25,628 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-28 17:39:25,636 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-28 17:39:25,636 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-28 17:39:25,636 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-28 17:39:25,698 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 17:39:25,698 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 17:39:25,699 INFO L168 Benchmark]: Toolchain (without parser) took 1312.61 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 103.8 MB). Free memory was 950.0 MB in the beginning and 1.1 GB in the end (delta: -103.8 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:39:25,702 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:39:25,702 INFO L168 Benchmark]: CACSL2BoogieTranslator took 299.11 ms. Allocated memory is still 1.0 GB. Free memory was 950.0 MB in the beginning and 937.9 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2018-11-28 17:39:25,706 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.17 ms. Allocated memory is still 1.0 GB. Free memory is still 937.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:39:25,707 INFO L168 Benchmark]: Boogie Preprocessor took 36.57 ms. Allocated memory is still 1.0 GB. Free memory is still 937.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:39:25,707 INFO L168 Benchmark]: RCFGBuilder took 288.98 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 103.8 MB). Free memory was 937.9 MB in the beginning and 1.1 GB in the end (delta: -150.1 MB). Peak memory consumption was 24.7 MB. Max. memory is 11.5 GB. [2018-11-28 17:39:25,709 INFO L168 Benchmark]: TraceAbstraction took 563.75 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: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 11.5 GB. [2018-11-28 17:39:25,711 INFO L168 Benchmark]: Witness Printer took 92.91 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2018-11-28 17:39:25,719 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 299.11 ms. Allocated memory is still 1.0 GB. Free memory was 950.0 MB in the beginning and 937.9 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 24.17 ms. Allocated memory is still 1.0 GB. Free memory is still 937.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 36.57 ms. Allocated memory is still 1.0 GB. Free memory is still 937.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 288.98 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 103.8 MB). Free memory was 937.9 MB in the beginning and 1.1 GB in the end (delta: -150.1 MB). Peak memory consumption was 24.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 563.75 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: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 11.5 GB. * Witness Printer took 92.91 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 8]: 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 3 procedures, 12 locations, 1 error locations. SAFE Result, 0.4s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 8 SDtfs, 2 SDslu, 6 SDs, 0 SdLazy, 1 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred 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, 4 LocationsWithAnnotation, 4 PreInvPairs, 4 NumberOfFragments, 4 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 120 SizeOfPredicates, 2 NumberOfNonLiveVariables, 14 ConjunctsInSsa, 3 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...