./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/float-benchs/sqrt_Newton_pseudoconstant_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0ed9222f 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/float-benchs/sqrt_Newton_pseudoconstant_true-unreach-call.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 3ac23ee9420d5573e041ab9b716895f5d3bb685f ............................................................................................................................................................................................................................................. 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/float-benchs/sqrt_Newton_pseudoconstant_true-unreach-call.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 3ac23ee9420d5573e041ab9b716895f5d3bb685f ........................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") --- Real Ultimate output --- This is Ultimate 0.1.24-0ed9222-m [2019-01-12 08:40:43,829 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-12 08:40:43,831 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-12 08:40:43,846 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-12 08:40:43,846 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-12 08:40:43,848 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-12 08:40:43,849 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-12 08:40:43,853 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-12 08:40:43,856 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-12 08:40:43,860 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-12 08:40:43,863 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-12 08:40:43,864 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-12 08:40:43,865 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-12 08:40:43,868 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-12 08:40:43,874 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-12 08:40:43,879 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-12 08:40:43,879 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-12 08:40:43,883 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-12 08:40:43,888 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-12 08:40:43,892 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-12 08:40:43,893 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-12 08:40:43,896 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-12 08:40:43,900 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-12 08:40:43,902 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-12 08:40:43,902 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-12 08:40:43,904 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-12 08:40:43,905 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-12 08:40:43,908 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-12 08:40:43,910 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-12 08:40:43,912 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-12 08:40:43,914 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-12 08:40:43,915 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-12 08:40:43,915 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-12 08:40:43,915 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-12 08:40:43,918 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-12 08:40:43,920 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-12 08:40:43,922 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-01-12 08:40:43,941 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-12 08:40:43,942 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-12 08:40:43,943 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-12 08:40:43,943 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-12 08:40:43,943 INFO L133 SettingsManager]: * Use SBE=true [2019-01-12 08:40:43,943 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-12 08:40:43,944 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-12 08:40:43,944 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-12 08:40:43,944 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-12 08:40:43,944 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-12 08:40:43,944 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-12 08:40:43,944 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-12 08:40:43,945 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-12 08:40:43,945 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-12 08:40:43,945 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-12 08:40:43,945 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-12 08:40:43,945 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-12 08:40:43,945 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-12 08:40:43,946 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-12 08:40:43,946 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-12 08:40:43,946 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-12 08:40:43,946 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-12 08:40:43,946 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-12 08:40:43,946 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-12 08:40:43,947 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-12 08:40:43,947 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-12 08:40:43,947 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-12 08:40:43,947 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-12 08:40:43,947 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 -> 3ac23ee9420d5573e041ab9b716895f5d3bb685f [2019-01-12 08:40:43,989 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-12 08:40:44,013 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-12 08:40:44,020 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-12 08:40:44,022 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-12 08:40:44,022 INFO L276 PluginConnector]: CDTParser initialized [2019-01-12 08:40:44,024 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/float-benchs/sqrt_Newton_pseudoconstant_true-unreach-call.c [2019-01-12 08:40:44,088 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/620a46eb3/59f666d8f03148c089586d0d0db7f8ee/FLAG26e1817ab [2019-01-12 08:40:44,549 INFO L307 CDTParser]: Found 1 translation units. [2019-01-12 08:40:44,549 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/float-benchs/sqrt_Newton_pseudoconstant_true-unreach-call.c [2019-01-12 08:40:44,557 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/620a46eb3/59f666d8f03148c089586d0d0db7f8ee/FLAG26e1817ab [2019-01-12 08:40:44,906 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/620a46eb3/59f666d8f03148c089586d0d0db7f8ee [2019-01-12 08:40:44,910 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-12 08:40:44,911 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-12 08:40:44,913 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-12 08:40:44,913 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-12 08:40:44,919 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-12 08:40:44,920 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.01 08:40:44" (1/1) ... [2019-01-12 08:40:44,925 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62924f08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 08:40:44, skipping insertion in model container [2019-01-12 08:40:44,925 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.01 08:40:44" (1/1) ... [2019-01-12 08:40:44,934 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-12 08:40:44,956 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-12 08:40:45,233 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-12 08:40:45,239 INFO L191 MainTranslator]: Completed pre-run [2019-01-12 08:40:45,265 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-12 08:40:45,284 INFO L195 MainTranslator]: Completed translation [2019-01-12 08:40:45,284 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 08:40:45 WrapperNode [2019-01-12 08:40:45,286 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-12 08:40:45,287 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-12 08:40:45,287 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-12 08:40:45,287 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-12 08:40:45,299 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 08:40:45" (1/1) ... [2019-01-12 08:40:45,308 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 08:40:45" (1/1) ... [2019-01-12 08:40:45,334 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-12 08:40:45,335 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-12 08:40:45,336 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-12 08:40:45,336 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-12 08:40:45,347 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 08:40:45" (1/1) ... [2019-01-12 08:40:45,347 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 08:40:45" (1/1) ... [2019-01-12 08:40:45,349 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 08:40:45" (1/1) ... [2019-01-12 08:40:45,350 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 08:40:45" (1/1) ... [2019-01-12 08:40:45,365 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 08:40:45" (1/1) ... [2019-01-12 08:40:45,374 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 08:40:45" (1/1) ... [2019-01-12 08:40:45,380 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 08:40:45" (1/1) ... [2019-01-12 08:40:45,387 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-12 08:40:45,389 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-12 08:40:45,391 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-12 08:40:45,391 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-12 08:40:45,392 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 08:40:45" (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 [2019-01-12 08:40:45,522 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-12 08:40:45,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-12 08:40:45,878 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-12 08:40:45,878 INFO L286 CfgBuilder]: Removed 10 assue(true) statements. [2019-01-12 08:40:45,880 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 08:40:45 BoogieIcfgContainer [2019-01-12 08:40:45,880 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-12 08:40:45,881 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-12 08:40:45,882 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-12 08:40:45,885 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-12 08:40:45,886 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.01 08:40:44" (1/3) ... [2019-01-12 08:40:45,886 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f517b1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.01 08:40:45, skipping insertion in model container [2019-01-12 08:40:45,887 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 08:40:45" (2/3) ... [2019-01-12 08:40:45,887 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f517b1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.01 08:40:45, skipping insertion in model container [2019-01-12 08:40:45,887 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 08:40:45" (3/3) ... [2019-01-12 08:40:45,890 INFO L112 eAbstractionObserver]: Analyzing ICFG sqrt_Newton_pseudoconstant_true-unreach-call.c [2019-01-12 08:40:45,899 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-12 08:40:45,906 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-01-12 08:40:45,923 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-01-12 08:40:45,951 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-12 08:40:45,951 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-12 08:40:45,951 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-12 08:40:45,952 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-12 08:40:45,952 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-12 08:40:45,952 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-12 08:40:45,952 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-12 08:40:45,953 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-12 08:40:45,953 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-12 08:40:45,968 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2019-01-12 08:40:45,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-01-12 08:40:45,974 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 08:40:45,975 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-12 08:40:45,978 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 08:40:45,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 08:40:45,984 INFO L82 PathProgramCache]: Analyzing trace with hash -1706227183, now seen corresponding path program 1 times [2019-01-12 08:40:45,987 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-12 08:40:45,987 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-12 08:40:46,037 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 08:40:46,037 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 08:40:46,037 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 08:40:46,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-12 08:40:46,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-12 08:40:46,117 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2019-01-12 08:40:46,144 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.01 08:40:46 BoogieIcfgContainer [2019-01-12 08:40:46,144 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-12 08:40:46,145 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-12 08:40:46,145 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-12 08:40:46,145 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-12 08:40:46,146 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 08:40:45" (3/4) ... [2019-01-12 08:40:46,149 INFO L147 WitnessPrinter]: No result that supports witness generation found [2019-01-12 08:40:46,149 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-12 08:40:46,150 INFO L168 Benchmark]: Toolchain (without parser) took 1239.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -136.4 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-01-12 08:40:46,153 INFO L168 Benchmark]: CDTParser took 0.27 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. [2019-01-12 08:40:46,153 INFO L168 Benchmark]: CACSL2BoogieTranslator took 374.13 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 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. [2019-01-12 08:40:46,154 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.00 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. [2019-01-12 08:40:46,155 INFO L168 Benchmark]: Boogie Preprocessor took 53.30 ms. Allocated memory is still 1.0 GB. Free memory was 940.6 MB in the beginning and 935.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-01-12 08:40:46,156 INFO L168 Benchmark]: RCFGBuilder took 490.96 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 935.3 MB in the beginning and 1.1 GB in the end (delta: -165.9 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. [2019-01-12 08:40:46,158 INFO L168 Benchmark]: TraceAbstraction took 263.14 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: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2019-01-12 08:40:46,159 INFO L168 Benchmark]: Witness Printer took 4.44 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. [2019-01-12 08:40:46,164 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 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 374.13 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 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 48.00 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 53.30 ms. Allocated memory is still 1.0 GB. Free memory was 940.6 MB in the beginning and 935.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 490.96 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 935.3 MB in the beginning and 1.1 GB in the end (delta: -165.9 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 263.14 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: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * Witness Printer took 4.44 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 someBinaryDOUBLEComparisonOperation at line 47, overapproximation of someUnaryDOUBLEoperation at line 20, overapproximation of someBinaryArithmeticDOUBLEoperation at line 32. Possible FailurePath: [L10] double _EPS = 1e-6; VAL [_EPS=1/1000000] [L37] double d, dd, r; [L38] double epsilon = 1e-8; [L40] d = 1. VAL [_EPS=1/1000000] [L40] COND TRUE d <= 20. [L42] dd = __VERIFIER_nondet_double() [L14] double xn, xnp1, residu, lsup, linf; [L15] int i, cond; VAL [_EPS=1/1000000] [L16] COND TRUE Input <= 1.0 [L16] xn = 1.0 VAL [_EPS=1/1000000] [L17] xnp1 = xn [L18] residu = 2.0*_EPS*(xn+xnp1) [L19] lsup = _EPS * (xn+xnp1) [L20] linf = -lsup [L21] cond = ((residu > lsup) || (residu < linf)) [L22] i = 0 VAL [_EPS=1/1000000] [L23] COND FALSE !(\read(cond)) VAL [_EPS=1/1000000] [L32] return 1.0 / xnp1; VAL [_EPS=1/1000000] [L45] r = SqrtR(dd) [L8] COND TRUE !(cond) VAL [_EPS=1/1000000] [L8] __VERIFIER_error() VAL [_EPS=1/1000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 16 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=16occurred 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, 10 NumberOfCodeBlocks, 10 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 0.1.24-0ed9222-m [2019-01-12 08:40:48,595 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-12 08:40:48,598 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-12 08:40:48,618 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-12 08:40:48,619 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-12 08:40:48,620 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-12 08:40:48,621 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-12 08:40:48,625 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-12 08:40:48,628 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-12 08:40:48,629 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-12 08:40:48,632 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-12 08:40:48,632 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-12 08:40:48,634 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-12 08:40:48,635 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-12 08:40:48,641 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-12 08:40:48,642 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-12 08:40:48,646 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-12 08:40:48,648 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-12 08:40:48,654 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-12 08:40:48,656 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-12 08:40:48,659 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-12 08:40:48,661 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-12 08:40:48,667 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-12 08:40:48,668 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-12 08:40:48,668 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-12 08:40:48,669 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-12 08:40:48,670 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-12 08:40:48,671 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-12 08:40:48,674 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-12 08:40:48,677 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-12 08:40:48,677 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-12 08:40:48,679 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-12 08:40:48,680 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-12 08:40:48,680 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-12 08:40:48,681 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-12 08:40:48,682 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-12 08:40:48,682 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-01-12 08:40:48,718 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-12 08:40:48,718 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-12 08:40:48,720 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-12 08:40:48,720 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-12 08:40:48,720 INFO L133 SettingsManager]: * Use SBE=true [2019-01-12 08:40:48,720 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-12 08:40:48,721 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-12 08:40:48,722 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-12 08:40:48,722 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-12 08:40:48,723 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-12 08:40:48,723 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-12 08:40:48,723 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-12 08:40:48,723 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2019-01-12 08:40:48,723 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-01-12 08:40:48,723 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-12 08:40:48,724 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-12 08:40:48,724 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-12 08:40:48,724 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-12 08:40:48,724 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-12 08:40:48,724 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-12 08:40:48,724 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-12 08:40:48,725 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-12 08:40:48,725 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-12 08:40:48,725 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-12 08:40:48,725 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-12 08:40:48,725 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-12 08:40:48,726 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2019-01-12 08:40:48,727 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-12 08:40:48,727 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-01-12 08:40:48,728 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2019-01-12 08:40:48,728 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 -> 3ac23ee9420d5573e041ab9b716895f5d3bb685f [2019-01-12 08:40:48,798 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-12 08:40:48,814 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-12 08:40:48,819 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-12 08:40:48,820 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-12 08:40:48,821 INFO L276 PluginConnector]: CDTParser initialized [2019-01-12 08:40:48,821 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/float-benchs/sqrt_Newton_pseudoconstant_true-unreach-call.c [2019-01-12 08:40:48,887 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/127a38686/07d6d411c6554f478253c313aeb1c839/FLAG5e26fce50 [2019-01-12 08:40:49,321 INFO L307 CDTParser]: Found 1 translation units. [2019-01-12 08:40:49,321 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/float-benchs/sqrt_Newton_pseudoconstant_true-unreach-call.c [2019-01-12 08:40:49,328 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/127a38686/07d6d411c6554f478253c313aeb1c839/FLAG5e26fce50 [2019-01-12 08:40:49,666 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/127a38686/07d6d411c6554f478253c313aeb1c839 [2019-01-12 08:40:49,670 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-12 08:40:49,671 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-12 08:40:49,672 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-12 08:40:49,672 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-12 08:40:49,676 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-12 08:40:49,677 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.01 08:40:49" (1/1) ... [2019-01-12 08:40:49,680 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26ee0d54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 08:40:49, skipping insertion in model container [2019-01-12 08:40:49,680 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.01 08:40:49" (1/1) ... [2019-01-12 08:40:49,690 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-12 08:40:49,715 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-12 08:40:49,987 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-12 08:40:50,000 INFO L191 MainTranslator]: Completed pre-run [2019-01-12 08:40:50,051 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-12 08:40:50,081 INFO L195 MainTranslator]: Completed translation [2019-01-12 08:40:50,082 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 08:40:50 WrapperNode [2019-01-12 08:40:50,082 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-12 08:40:50,083 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-12 08:40:50,083 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-12 08:40:50,083 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-12 08:40:50,094 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 08:40:50" (1/1) ... [2019-01-12 08:40:50,105 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 08:40:50" (1/1) ... [2019-01-12 08:40:50,132 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-12 08:40:50,133 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-12 08:40:50,133 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-12 08:40:50,133 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-12 08:40:50,144 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 08:40:50" (1/1) ... [2019-01-12 08:40:50,145 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 08:40:50" (1/1) ... [2019-01-12 08:40:50,149 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 08:40:50" (1/1) ... [2019-01-12 08:40:50,149 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 08:40:50" (1/1) ... [2019-01-12 08:40:50,173 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 08:40:50" (1/1) ... [2019-01-12 08:40:50,179 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 08:40:50" (1/1) ... [2019-01-12 08:40:50,182 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 08:40:50" (1/1) ... [2019-01-12 08:40:50,186 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-12 08:40:50,189 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-12 08:40:50,189 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-12 08:40:50,189 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-12 08:40:50,192 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 08:40:50" (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 [2019-01-12 08:40:50,358 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-12 08:40:50,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-12 08:41:00,925 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-12 08:41:00,925 INFO L286 CfgBuilder]: Removed 10 assue(true) statements. [2019-01-12 08:41:00,926 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 08:41:00 BoogieIcfgContainer [2019-01-12 08:41:00,927 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-12 08:41:00,928 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-12 08:41:00,928 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-12 08:41:00,932 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-12 08:41:00,932 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.01 08:40:49" (1/3) ... [2019-01-12 08:41:00,933 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6687ba29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.01 08:41:00, skipping insertion in model container [2019-01-12 08:41:00,933 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 08:40:50" (2/3) ... [2019-01-12 08:41:00,934 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6687ba29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.01 08:41:00, skipping insertion in model container [2019-01-12 08:41:00,934 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 08:41:00" (3/3) ... [2019-01-12 08:41:00,937 INFO L112 eAbstractionObserver]: Analyzing ICFG sqrt_Newton_pseudoconstant_true-unreach-call.c [2019-01-12 08:41:00,946 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-12 08:41:00,953 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-01-12 08:41:00,970 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-01-12 08:41:01,003 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-12 08:41:01,004 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-12 08:41:01,004 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-12 08:41:01,004 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-12 08:41:01,005 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-12 08:41:01,005 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-12 08:41:01,005 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-12 08:41:01,005 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-12 08:41:01,005 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-12 08:41:01,020 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2019-01-12 08:41:01,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-01-12 08:41:01,028 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 08:41:01,029 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-12 08:41:01,032 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 08:41:01,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 08:41:01,039 INFO L82 PathProgramCache]: Analyzing trace with hash -1706227183, now seen corresponding path program 1 times [2019-01-12 08:41:01,044 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2019-01-12 08:41:01,045 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 [2019-01-12 08:41:01,055 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 08:41:02,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-12 08:41:02,769 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-12 08:41:02,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-12 08:41:02,960 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2019-01-12 08:41:02,993 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-12 08:41:02,993 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-01-12 08:41:02,997 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-01-12 08:41:03,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-01-12 08:41:03,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-01-12 08:41:03,013 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 5 states. [2019-01-12 08:41:10,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-12 08:41:10,064 INFO L93 Difference]: Finished difference Result 39 states and 53 transitions. [2019-01-12 08:41:10,066 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-01-12 08:41:10,067 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2019-01-12 08:41:10,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-12 08:41:10,079 INFO L225 Difference]: With dead ends: 39 [2019-01-12 08:41:10,080 INFO L226 Difference]: Without dead ends: 17 [2019-01-12 08:41:10,084 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-01-12 08:41:10,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-01-12 08:41:10,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2019-01-12 08:41:10,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-01-12 08:41:10,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2019-01-12 08:41:10,116 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 19 transitions. Word has length 10 [2019-01-12 08:41:10,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-12 08:41:10,117 INFO L480 AbstractCegarLoop]: Abstraction has 16 states and 19 transitions. [2019-01-12 08:41:10,117 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-01-12 08:41:10,117 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2019-01-12 08:41:10,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-01-12 08:41:10,118 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 08:41:10,118 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-12 08:41:10,118 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 08:41:10,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 08:41:10,119 INFO L82 PathProgramCache]: Analyzing trace with hash 68780179, now seen corresponding path program 1 times [2019-01-12 08:41:10,119 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2019-01-12 08:41:10,120 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-01-12 08:41:10,128 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 08:41:18,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-12 08:41:18,912 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-12 08:41:21,539 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((ULTIMATE.start_SqrtR_~Input (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 1.0)) (.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 100000000.0)))) (and (= (fp.div roundNearestTiesToEven .cse0 ULTIMATE.start_SqrtR_~Input) c_ULTIMATE.start_SqrtR_~xn~0) (not (fp.leq ULTIMATE.start_SqrtR_~Input .cse0)) (fp.geq ULTIMATE.start_SqrtR_~Input (fp.sub roundNearestTiesToEven .cse0 .cse1)) (fp.leq ULTIMATE.start_SqrtR_~Input (fp.add roundNearestTiesToEven .cse0 .cse1))))) (= c_~_EPS~0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 1000000.0)))) is different from false [2019-01-12 08:41:23,607 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse1 (let ((.cse5 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 1000000.0))) (.cse6 (fp.add roundNearestTiesToEven c_ULTIMATE.start_SqrtR_~xnp1~0 c_ULTIMATE.start_SqrtR_~xnp1~0))) (fp.gt (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 2.0) .cse5) .cse6) (fp.mul roundNearestTiesToEven .cse5 .cse6)))) (.cse0 (exists ((ULTIMATE.start_SqrtR_~Input (_ FloatingPoint 11 53))) (let ((.cse3 ((_ to_fp 11 53) roundNearestTiesToEven 1.0)) (.cse4 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 100000000.0)))) (and (not (fp.leq ULTIMATE.start_SqrtR_~Input .cse3)) (fp.geq ULTIMATE.start_SqrtR_~Input (fp.sub roundNearestTiesToEven .cse3 .cse4)) (= (fp.div roundNearestTiesToEven .cse3 ULTIMATE.start_SqrtR_~Input) c_ULTIMATE.start_SqrtR_~xnp1~0) (fp.leq ULTIMATE.start_SqrtR_~Input (fp.add roundNearestTiesToEven .cse3 .cse4)))))) (.cse2 (= (bvadd c_ULTIMATE.start_SqrtR_~cond~0 (_ bv4294967295 32)) (_ bv0 32)))) (or (and .cse0 (not .cse1) (= c_ULTIMATE.start_SqrtR_~cond~0 (_ bv0 32)) (exists ((ULTIMATE.start_SqrtR_~linf~0 (_ FloatingPoint 11 53))) (not (fp.lt (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 2.0) ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 1000000.0))) (fp.add roundNearestTiesToEven c_ULTIMATE.start_SqrtR_~xnp1~0 c_ULTIMATE.start_SqrtR_~xnp1~0)) ULTIMATE.start_SqrtR_~linf~0)))) (and .cse0 .cse2 .cse1) (and .cse0 .cse2 (exists ((v_prenex_1 (_ FloatingPoint 11 53))) (fp.lt (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 2.0) ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 1000000.0))) (fp.add roundNearestTiesToEven c_ULTIMATE.start_SqrtR_~xnp1~0 c_ULTIMATE.start_SqrtR_~xnp1~0)) v_prenex_1))))) is different from false [2019-01-12 08:41:26,332 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse1 (let ((.cse5 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 1000000.0))) (.cse6 (fp.add roundNearestTiesToEven c_ULTIMATE.start_SqrtR_~xnp1~0 c_ULTIMATE.start_SqrtR_~xnp1~0))) (fp.gt (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 2.0) .cse5) .cse6) (fp.mul roundNearestTiesToEven .cse5 .cse6)))) (.cse0 (exists ((ULTIMATE.start_SqrtR_~Input (_ FloatingPoint 11 53))) (let ((.cse3 ((_ to_fp 11 53) roundNearestTiesToEven 1.0)) (.cse4 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 100000000.0)))) (and (not (fp.leq ULTIMATE.start_SqrtR_~Input .cse3)) (fp.geq ULTIMATE.start_SqrtR_~Input (fp.sub roundNearestTiesToEven .cse3 .cse4)) (= (fp.div roundNearestTiesToEven .cse3 ULTIMATE.start_SqrtR_~Input) c_ULTIMATE.start_SqrtR_~xnp1~0) (fp.leq ULTIMATE.start_SqrtR_~Input (fp.add roundNearestTiesToEven .cse3 .cse4)))))) (.cse2 (= (bvadd c_ULTIMATE.start_SqrtR_~cond~0 (_ bv4294967295 32)) (_ bv0 32)))) (or (and .cse0 (not .cse1) (= c_ULTIMATE.start_SqrtR_~cond~0 (_ bv0 32)) (exists ((ULTIMATE.start_SqrtR_~linf~0 (_ FloatingPoint 11 53))) (not (fp.lt (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 2.0) ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 1000000.0))) (fp.add roundNearestTiesToEven c_ULTIMATE.start_SqrtR_~xnp1~0 c_ULTIMATE.start_SqrtR_~xnp1~0)) ULTIMATE.start_SqrtR_~linf~0)))) (and .cse0 .cse2 .cse1) (and .cse0 .cse2 (exists ((v_prenex_1 (_ FloatingPoint 11 53))) (fp.lt (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 2.0) ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 1000000.0))) (fp.add roundNearestTiesToEven c_ULTIMATE.start_SqrtR_~xnp1~0 c_ULTIMATE.start_SqrtR_~xnp1~0)) v_prenex_1))))) is different from true [2019-01-12 08:41:28,850 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((ULTIMATE.start_SqrtR_~Input (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 1.0)) (.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 100000000.0)))) (and (not (fp.leq ULTIMATE.start_SqrtR_~Input .cse0)) (fp.geq ULTIMATE.start_SqrtR_~Input (fp.sub roundNearestTiesToEven .cse0 .cse1)) (= (fp.div roundNearestTiesToEven .cse0 ULTIMATE.start_SqrtR_~Input) c_ULTIMATE.start_SqrtR_~xnp1~0) (fp.leq ULTIMATE.start_SqrtR_~Input (fp.add roundNearestTiesToEven .cse0 .cse1))))) (not (let ((.cse2 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 1000000.0))) (.cse3 (fp.add roundNearestTiesToEven c_ULTIMATE.start_SqrtR_~xnp1~0 c_ULTIMATE.start_SqrtR_~xnp1~0))) (fp.gt (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 2.0) .cse2) .cse3) (fp.mul roundNearestTiesToEven .cse2 .cse3)))) (exists ((ULTIMATE.start_SqrtR_~linf~0 (_ FloatingPoint 11 53))) (not (fp.lt (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 2.0) ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 1000000.0))) (fp.add roundNearestTiesToEven c_ULTIMATE.start_SqrtR_~xnp1~0 c_ULTIMATE.start_SqrtR_~xnp1~0)) ULTIMATE.start_SqrtR_~linf~0)))) is different from false [2019-01-12 08:41:31,247 WARN L860 $PredicateComparison]: unable to prove that (and (exists ((ULTIMATE.start_SqrtR_~Input (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 1.0)) (.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 100000000.0)))) (and (not (fp.leq ULTIMATE.start_SqrtR_~Input .cse0)) (fp.geq ULTIMATE.start_SqrtR_~Input (fp.sub roundNearestTiesToEven .cse0 .cse1)) (= (fp.div roundNearestTiesToEven .cse0 ULTIMATE.start_SqrtR_~Input) c_ULTIMATE.start_SqrtR_~xnp1~0) (fp.leq ULTIMATE.start_SqrtR_~Input (fp.add roundNearestTiesToEven .cse0 .cse1))))) (not (let ((.cse2 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 1000000.0))) (.cse3 (fp.add roundNearestTiesToEven c_ULTIMATE.start_SqrtR_~xnp1~0 c_ULTIMATE.start_SqrtR_~xnp1~0))) (fp.gt (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 2.0) .cse2) .cse3) (fp.mul roundNearestTiesToEven .cse2 .cse3)))) (exists ((ULTIMATE.start_SqrtR_~linf~0 (_ FloatingPoint 11 53))) (not (fp.lt (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 2.0) ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 1000000.0))) (fp.add roundNearestTiesToEven c_ULTIMATE.start_SqrtR_~xnp1~0 c_ULTIMATE.start_SqrtR_~xnp1~0)) ULTIMATE.start_SqrtR_~linf~0)))) is different from true [2019-01-12 08:41:34,071 WARN L838 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_SqrtR_~Input (_ FloatingPoint 11 53)) (ULTIMATE.start_SqrtR_~linf~0 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (let ((.cse5 (fp.div roundNearestTiesToEven .cse1 ULTIMATE.start_SqrtR_~Input))) (let ((.cse2 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 1000000.0))) (.cse3 (fp.add roundNearestTiesToEven .cse5 .cse5))) (let ((.cse0 (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 2.0) .cse2) .cse3)) (.cse4 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 100000000.0)))) (and (not (fp.lt .cse0 ULTIMATE.start_SqrtR_~linf~0)) (not (fp.leq ULTIMATE.start_SqrtR_~Input .cse1)) (not (fp.gt .cse0 (fp.mul roundNearestTiesToEven .cse2 .cse3))) (fp.geq ULTIMATE.start_SqrtR_~Input (fp.sub roundNearestTiesToEven .cse1 .cse4)) (= (fp.div roundNearestTiesToEven .cse1 .cse5) |c_ULTIMATE.start_SqrtR_#res|) (fp.leq ULTIMATE.start_SqrtR_~Input (fp.add roundNearestTiesToEven .cse1 .cse4)))))))) is different from false [2019-01-12 08:41:36,761 WARN L860 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_SqrtR_~Input (_ FloatingPoint 11 53)) (ULTIMATE.start_SqrtR_~linf~0 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (let ((.cse5 (fp.div roundNearestTiesToEven .cse1 ULTIMATE.start_SqrtR_~Input))) (let ((.cse2 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 1000000.0))) (.cse3 (fp.add roundNearestTiesToEven .cse5 .cse5))) (let ((.cse0 (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 2.0) .cse2) .cse3)) (.cse4 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 100000000.0)))) (and (not (fp.lt .cse0 ULTIMATE.start_SqrtR_~linf~0)) (not (fp.leq ULTIMATE.start_SqrtR_~Input .cse1)) (not (fp.gt .cse0 (fp.mul roundNearestTiesToEven .cse2 .cse3))) (fp.geq ULTIMATE.start_SqrtR_~Input (fp.sub roundNearestTiesToEven .cse1 .cse4)) (= (fp.div roundNearestTiesToEven .cse1 .cse5) |c_ULTIMATE.start_SqrtR_#res|) (fp.leq ULTIMATE.start_SqrtR_~Input (fp.add roundNearestTiesToEven .cse1 .cse4)))))))) is different from true [2019-01-12 08:42:00,889 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse6 (= (_ bv0 32) c_ULTIMATE.start___VERIFIER_assert_~cond))) (or (and (exists ((v_prenex_6 (_ FloatingPoint 11 53)) (v_prenex_5 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (let ((.cse5 (fp.div roundNearestTiesToEven .cse0 v_prenex_5))) (let ((.cse3 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 1000000.0))) (.cse4 (fp.add roundNearestTiesToEven .cse5 .cse5))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 100000000.0))) (.cse2 (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 2.0) .cse3) .cse4))) (and (not (fp.leq v_prenex_5 .cse0)) (fp.geq v_prenex_5 (fp.sub roundNearestTiesToEven .cse0 .cse1)) (not (fp.gt .cse2 (fp.mul roundNearestTiesToEven .cse3 .cse4))) (fp.leq v_prenex_5 (fp.add roundNearestTiesToEven .cse0 .cse1)) (not (fp.lt .cse2 v_prenex_6)) (not (fp.geq (fp.div roundNearestTiesToEven .cse0 .cse5) ((_ to_fp 11 53) roundNearestTiesToEven (/ 9.0 10.0)))))))))) .cse6) (and (exists ((ULTIMATE.start_SqrtR_~Input (_ FloatingPoint 11 53)) (ULTIMATE.start_SqrtR_~linf~0 (_ FloatingPoint 11 53))) (let ((.cse9 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (let ((.cse13 (fp.div roundNearestTiesToEven .cse9 ULTIMATE.start_SqrtR_~Input))) (let ((.cse10 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 1000000.0))) (.cse11 (fp.add roundNearestTiesToEven .cse13 .cse13))) (let ((.cse8 (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 2.0) .cse10) .cse11)) (.cse7 (fp.div roundNearestTiesToEven .cse9 .cse13)) (.cse12 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 100000000.0)))) (and (fp.geq .cse7 ((_ to_fp 11 53) roundNearestTiesToEven (/ 9.0 10.0))) (not (fp.lt .cse8 ULTIMATE.start_SqrtR_~linf~0)) (not (fp.leq ULTIMATE.start_SqrtR_~Input .cse9)) (not (fp.gt .cse8 (fp.mul roundNearestTiesToEven .cse10 .cse11))) (fp.geq ULTIMATE.start_SqrtR_~Input (fp.sub roundNearestTiesToEven .cse9 .cse12)) (fp.leq .cse7 ((_ to_fp 11 53) roundNearestTiesToEven 5.0)) (fp.leq ULTIMATE.start_SqrtR_~Input (fp.add roundNearestTiesToEven .cse9 .cse12)))))))) (= (_ bv1 32) c_ULTIMATE.start___VERIFIER_assert_~cond)) (and (exists ((v_prenex_2 (_ FloatingPoint 11 53)) (v_prenex_3 (_ FloatingPoint 11 53))) (let ((.cse17 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (let ((.cse19 (fp.div roundNearestTiesToEven .cse17 v_prenex_2))) (let ((.cse15 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 1000000.0))) (.cse16 (fp.add roundNearestTiesToEven .cse19 .cse19))) (let ((.cse18 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 100000000.0))) (.cse14 (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 2.0) .cse15) .cse16))) (and (not (fp.gt .cse14 (fp.mul roundNearestTiesToEven .cse15 .cse16))) (fp.leq v_prenex_2 (fp.add roundNearestTiesToEven .cse17 .cse18)) (not (fp.leq (fp.div roundNearestTiesToEven .cse17 .cse19) ((_ to_fp 11 53) roundNearestTiesToEven 5.0))) (not (fp.leq v_prenex_2 .cse17)) (fp.geq v_prenex_2 (fp.sub roundNearestTiesToEven .cse17 .cse18)) (not (fp.lt .cse14 v_prenex_3)))))))) .cse6))) is different from false [2019-01-12 08:42:14,692 WARN L194 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2019-01-12 08:42:14,893 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-01-12 08:42:14,894 FATAL L265 ToolchainWalker]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:208) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:225) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.WrapperScript.checkSat(WrapperScript.java:116) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.managedscript.ManagedScript.checkSat(ManagedScript.java:141) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.MonolithicImplicationChecker.checkImplication(MonolithicImplicationChecker.java:84) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.compare(PredicateUnifier.java:829) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.(PredicateUnifier.java:773) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:345) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:305) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp$UnifyPostprocessor.postprocess(TraceCheckSpWp.java:575) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:439) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:200) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:286) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructForwardBackward(TraceCheckConstructor.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructTraceCheck(TraceCheckConstructor.java:188) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.MultiTrackRefinementStrategy.getTraceCheck(MultiTrackRefinementStrategy.java:232) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:223) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:70) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:456) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:434) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:126) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1427) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:630) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:419) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:205) ... 39 more [2019-01-12 08:42:14,906 INFO L168 Benchmark]: Toolchain (without parser) took 85236.15 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 78.1 MB). Free memory was 951.3 MB in the beginning and 991.0 MB in the end (delta: -39.7 MB). Peak memory consumption was 38.4 MB. Max. memory is 11.5 GB. [2019-01-12 08:42:14,909 INFO L168 Benchmark]: CDTParser took 0.17 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. [2019-01-12 08:42:14,909 INFO L168 Benchmark]: CACSL2BoogieTranslator took 410.46 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. [2019-01-12 08:42:14,911 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.77 ms. Allocated memory is still 1.0 GB. Free memory was 940.6 MB in the beginning and 935.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-01-12 08:42:14,912 INFO L168 Benchmark]: Boogie Preprocessor took 53.62 ms. Allocated memory is still 1.0 GB. Free memory is still 935.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-12 08:42:14,912 INFO L168 Benchmark]: RCFGBuilder took 10737.71 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 78.1 MB). Free memory was 935.2 MB in the beginning and 1.0 GB in the end (delta: -113.3 MB). Peak memory consumption was 13.7 MB. Max. memory is 11.5 GB. [2019-01-12 08:42:14,914 INFO L168 Benchmark]: TraceAbstraction took 73977.97 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 991.0 MB in the end (delta: 57.5 MB). Peak memory consumption was 57.5 MB. Max. memory is 11.5 GB. [2019-01-12 08:42:14,920 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 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 410.46 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 49.77 ms. Allocated memory is still 1.0 GB. Free memory was 940.6 MB in the beginning and 935.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 53.62 ms. Allocated memory is still 1.0 GB. Free memory is still 935.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 10737.71 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 78.1 MB). Free memory was 935.2 MB in the beginning and 1.0 GB in the end (delta: -113.3 MB). Peak memory consumption was 13.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 73977.97 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 991.0 MB in the end (delta: 57.5 MB). Peak memory consumption was 57.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:208) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...