./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/floats-cdfpl/newton_2_8_false-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_8f7c8d13-6b2b-4ab7-8617-f651d51886d0/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_8f7c8d13-6b2b-4ab7-8617-f651d51886d0/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_8f7c8d13-6b2b-4ab7-8617-f651d51886d0/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_8f7c8d13-6b2b-4ab7-8617-f651d51886d0/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_2_8_false-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_8f7c8d13-6b2b-4ab7-8617-f651d51886d0/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_8f7c8d13-6b2b-4ab7-8617-f651d51886d0/bin-2019/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2d89a0564bbb0fd26a33f9c676f8f302637a0505 ......................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_8f7c8d13-6b2b-4ab7-8617-f651d51886d0/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_8f7c8d13-6b2b-4ab7-8617-f651d51886d0/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_8f7c8d13-6b2b-4ab7-8617-f651d51886d0/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_8f7c8d13-6b2b-4ab7-8617-f651d51886d0/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_2_8_false-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_8f7c8d13-6b2b-4ab7-8617-f651d51886d0/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_8f7c8d13-6b2b-4ab7-8617-f651d51886d0/bin-2019/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2d89a0564bbb0fd26a33f9c676f8f302637a0505 ........................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-10-26 19:15:48,774 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 19:15:48,775 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 19:15:48,783 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 19:15:48,784 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 19:15:48,784 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 19:15:48,785 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 19:15:48,786 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 19:15:48,788 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 19:15:48,789 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 19:15:48,790 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 19:15:48,790 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 19:15:48,791 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 19:15:48,791 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 19:15:48,792 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 19:15:48,793 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 19:15:48,793 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 19:15:48,794 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 19:15:48,796 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 19:15:48,797 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 19:15:48,798 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 19:15:48,799 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 19:15:48,801 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 19:15:48,801 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 19:15:48,801 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 19:15:48,802 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 19:15:48,803 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 19:15:48,804 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 19:15:48,805 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 19:15:48,805 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 19:15:48,805 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 19:15:48,806 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 19:15:48,806 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 19:15:48,806 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 19:15:48,808 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 19:15:48,808 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 19:15:48,808 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_8f7c8d13-6b2b-4ab7-8617-f651d51886d0/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-10-26 19:15:48,818 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 19:15:48,818 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 19:15:48,819 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 19:15:48,819 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-26 19:15:48,820 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-26 19:15:48,820 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-26 19:15:48,820 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-26 19:15:48,820 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-26 19:15:48,820 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-26 19:15:48,820 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-26 19:15:48,820 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-26 19:15:48,821 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 19:15:48,821 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-26 19:15:48,821 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-26 19:15:48,821 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-26 19:15:48,821 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 19:15:48,821 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 19:15:48,821 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 19:15:48,822 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 19:15:48,822 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-26 19:15:48,822 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 19:15:48,822 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 19:15:48,822 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 19:15:48,822 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 19:15:48,822 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 19:15:48,822 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 19:15:48,822 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 19:15:48,823 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 19:15:48,825 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 19:15:48,825 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 19:15:48,825 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-26 19:15:48,825 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 19:15:48,825 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-26 19:15:48,826 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-26 19:15:48,826 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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 -> /tmp/vcloud-vcloud-master/worker/working_dir_8f7c8d13-6b2b-4ab7-8617-f651d51886d0/bin-2019/utaipan 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 -> Taipan 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 -> 2d89a0564bbb0fd26a33f9c676f8f302637a0505 [2018-10-26 19:15:48,851 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 19:15:48,860 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 19:15:48,862 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 19:15:48,864 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 19:15:48,864 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 19:15:48,864 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_8f7c8d13-6b2b-4ab7-8617-f651d51886d0/bin-2019/utaipan/../../sv-benchmarks/c/floats-cdfpl/newton_2_8_false-unreach-call_true-termination.i [2018-10-26 19:15:48,916 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8f7c8d13-6b2b-4ab7-8617-f651d51886d0/bin-2019/utaipan/data/6dcb97436/bc8eb4e4cecf4b05a78aa5f31ebd9356/FLAGefda563bd [2018-10-26 19:15:49,267 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 19:15:49,268 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_8f7c8d13-6b2b-4ab7-8617-f651d51886d0/sv-benchmarks/c/floats-cdfpl/newton_2_8_false-unreach-call_true-termination.i [2018-10-26 19:15:49,274 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8f7c8d13-6b2b-4ab7-8617-f651d51886d0/bin-2019/utaipan/data/6dcb97436/bc8eb4e4cecf4b05a78aa5f31ebd9356/FLAGefda563bd [2018-10-26 19:15:49,286 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_8f7c8d13-6b2b-4ab7-8617-f651d51886d0/bin-2019/utaipan/data/6dcb97436/bc8eb4e4cecf4b05a78aa5f31ebd9356 [2018-10-26 19:15:49,289 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 19:15:49,291 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-26 19:15:49,291 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 19:15:49,292 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 19:15:49,296 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 19:15:49,297 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 07:15:49" (1/1) ... [2018-10-26 19:15:49,299 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@250b1434 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:15:49, skipping insertion in model container [2018-10-26 19:15:49,299 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 07:15:49" (1/1) ... [2018-10-26 19:15:49,315 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 19:15:49,330 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 19:15:49,447 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 19:15:49,450 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 19:15:49,463 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 19:15:49,473 INFO L193 MainTranslator]: Completed translation [2018-10-26 19:15:49,474 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:15:49 WrapperNode [2018-10-26 19:15:49,474 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 19:15:49,475 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-26 19:15:49,475 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-26 19:15:49,475 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-26 19:15:49,483 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:15:49" (1/1) ... [2018-10-26 19:15:49,488 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:15:49" (1/1) ... [2018-10-26 19:15:49,493 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-26 19:15:49,494 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 19:15:49,494 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 19:15:49,494 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 19:15:49,505 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:15:49" (1/1) ... [2018-10-26 19:15:49,506 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:15:49" (1/1) ... [2018-10-26 19:15:49,507 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:15:49" (1/1) ... [2018-10-26 19:15:49,508 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:15:49" (1/1) ... [2018-10-26 19:15:49,512 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:15:49" (1/1) ... [2018-10-26 19:15:49,518 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:15:49" (1/1) ... [2018-10-26 19:15:49,519 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:15:49" (1/1) ... [2018-10-26 19:15:49,521 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 19:15:49,521 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 19:15:49,521 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 19:15:49,521 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 19:15:49,522 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:15:49" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8f7c8d13-6b2b-4ab7-8617-f651d51886d0/bin-2019/utaipan/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 [2018-10-26 19:15:49,656 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-26 19:15:49,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-26 19:15:49,657 INFO L130 BoogieDeclarations]: Found specification of procedure f [2018-10-26 19:15:49,657 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2018-10-26 19:15:49,657 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 19:15:49,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 19:15:49,657 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-26 19:15:49,657 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-26 19:15:49,657 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2018-10-26 19:15:49,657 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2018-10-26 19:15:49,899 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 19:15:49,900 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 07:15:49 BoogieIcfgContainer [2018-10-26 19:15:49,900 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 19:15:49,901 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 19:15:49,901 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 19:15:49,904 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 19:15:49,904 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 07:15:49" (1/3) ... [2018-10-26 19:15:49,905 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2668accf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 07:15:49, skipping insertion in model container [2018-10-26 19:15:49,905 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:15:49" (2/3) ... [2018-10-26 19:15:49,905 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2668accf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 07:15:49, skipping insertion in model container [2018-10-26 19:15:49,906 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 07:15:49" (3/3) ... [2018-10-26 19:15:49,907 INFO L112 eAbstractionObserver]: Analyzing ICFG newton_2_8_false-unreach-call_true-termination.i [2018-10-26 19:15:49,915 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 19:15:49,922 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-26 19:15:49,936 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-26 19:15:49,965 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 19:15:49,965 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 19:15:49,965 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 19:15:49,965 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 19:15:49,965 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 19:15:49,965 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 19:15:49,966 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 19:15:49,966 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 19:15:50,008 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2018-10-26 19:15:50,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-10-26 19:15:50,014 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 19:15:50,014 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 19:15:50,016 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 19:15:50,026 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 19:15:50,026 INFO L82 PathProgramCache]: Analyzing trace with hash 460512481, now seen corresponding path program 1 times [2018-10-26 19:15:50,028 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 19:15:50,072 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:15:50,072 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 19:15:50,072 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:15:50,072 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 19:15:50,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 19:15:50,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 19:15:50,138 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-10-26 19:15:50,175 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 07:15:50 BoogieIcfgContainer [2018-10-26 19:15:50,176 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-26 19:15:50,176 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-26 19:15:50,176 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-26 19:15:50,176 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-26 19:15:50,177 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 07:15:49" (3/4) ... [2018-10-26 19:15:50,186 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-10-26 19:15:50,187 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-26 19:15:50,187 INFO L168 Benchmark]: Toolchain (without parser) took 897.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 954.5 MB in the beginning and 1.1 GB in the end (delta: -154.3 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 19:15:50,189 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 19:15:50,189 INFO L168 Benchmark]: CACSL2BoogieTranslator took 182.72 ms. Allocated memory is still 1.0 GB. Free memory was 954.5 MB in the beginning and 943.6 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. [2018-10-26 19:15:50,190 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.91 ms. Allocated memory is still 1.0 GB. Free memory is still 943.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 19:15:50,190 INFO L168 Benchmark]: Boogie Preprocessor took 27.09 ms. Allocated memory is still 1.0 GB. Free memory was 943.6 MB in the beginning and 940.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-10-26 19:15:50,196 INFO L168 Benchmark]: RCFGBuilder took 379.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 940.9 MB in the beginning and 1.1 GB in the end (delta: -185.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 11.5 GB. [2018-10-26 19:15:50,198 INFO L168 Benchmark]: TraceAbstraction took 274.95 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: 18.0 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. [2018-10-26 19:15:50,198 INFO L168 Benchmark]: Witness Printer took 10.53 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. [2018-10-26 19:15:50,201 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 182.72 ms. Allocated memory is still 1.0 GB. Free memory was 954.5 MB in the beginning and 943.6 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 18.91 ms. Allocated memory is still 1.0 GB. Free memory is still 943.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 27.09 ms. Allocated memory is still 1.0 GB. Free memory was 943.6 MB in the beginning and 940.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 379.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 940.9 MB in the beginning and 1.1 GB in the end (delta: -185.8 MB). Peak memory consumption was 23.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 274.95 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: 18.0 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. * Witness Printer took 10.53 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: 28]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 17, overapproximation of someBinaryDOUBLEComparisonOperation at line 27, overapproximation of someBinaryArithmeticFLOAToperation at line 21. Possible FailurePath: [L16] float IN = __VERIFIER_nondet_float(); [L19] CALL, EXPR f(IN) VAL [\old(x)=5] [L6] RET return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=5, x=5] [L19] EXPR f(IN) VAL [f(IN)=4, IN=5] [L19] CALL, EXPR fp(IN) VAL [\old(x)=5] [L11] RET return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=5, x=5] [L19] EXPR fp(IN) VAL [f(IN)=4, fp(IN)=1, IN=5] [L19] float x = IN - f(IN)/fp(IN); [L21] CALL, EXPR f(x) VAL [\old(x)=2] [L6] RET return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=2, x=2] [L21] EXPR f(x) VAL [f(x)=3, IN=5, x=2] [L21] CALL, EXPR fp(x) VAL [\old(x)=2] [L11] RET return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=2, x=2] [L21] EXPR fp(x) VAL [f(x)=3, fp(x)=0, IN=5, x=2] [L21] x = x - f(x)/fp(x) [L27] COND TRUE !(x < 0.1) VAL [IN=5] [L28] __VERIFIER_error() VAL [IN=5] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 25 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 1 OverallIterations, 2 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred 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, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-1dbac8b [2018-10-26 19:15:52,053 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 19:15:52,055 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 19:15:52,064 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 19:15:52,065 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 19:15:52,065 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 19:15:52,066 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 19:15:52,068 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 19:15:52,069 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 19:15:52,070 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 19:15:52,070 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 19:15:52,070 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 19:15:52,072 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 19:15:52,072 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 19:15:52,073 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 19:15:52,074 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 19:15:52,074 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 19:15:52,076 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 19:15:52,078 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 19:15:52,079 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 19:15:52,080 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 19:15:52,081 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 19:15:52,083 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 19:15:52,084 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 19:15:52,084 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 19:15:52,085 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 19:15:52,085 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 19:15:52,086 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 19:15:52,087 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 19:15:52,088 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 19:15:52,088 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 19:15:52,089 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 19:15:52,089 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 19:15:52,089 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 19:15:52,090 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 19:15:52,091 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 19:15:52,092 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_8f7c8d13-6b2b-4ab7-8617-f651d51886d0/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-10-26 19:15:52,102 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 19:15:52,103 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 19:15:52,103 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 19:15:52,104 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-26 19:15:52,104 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-26 19:15:52,104 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-26 19:15:52,104 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-26 19:15:52,104 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-26 19:15:52,105 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 19:15:52,105 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-26 19:15:52,105 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-26 19:15:52,105 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 19:15:52,105 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 19:15:52,105 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 19:15:52,106 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 19:15:52,106 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-10-26 19:15:52,106 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-10-26 19:15:52,106 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-26 19:15:52,106 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 19:15:52,106 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 19:15:52,106 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 19:15:52,107 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 19:15:52,107 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 19:15:52,109 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 19:15:52,109 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 19:15:52,109 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 19:15:52,109 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 19:15:52,109 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 19:15:52,110 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-10-26 19:15:52,110 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 19:15:52,110 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-10-26 19:15:52,110 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-10-26 19:15:52,110 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 -> /tmp/vcloud-vcloud-master/worker/working_dir_8f7c8d13-6b2b-4ab7-8617-f651d51886d0/bin-2019/utaipan 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 -> Taipan 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 -> 2d89a0564bbb0fd26a33f9c676f8f302637a0505 [2018-10-26 19:15:52,143 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 19:15:52,153 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 19:15:52,156 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 19:15:52,157 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 19:15:52,157 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 19:15:52,158 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_8f7c8d13-6b2b-4ab7-8617-f651d51886d0/bin-2019/utaipan/../../sv-benchmarks/c/floats-cdfpl/newton_2_8_false-unreach-call_true-termination.i [2018-10-26 19:15:52,196 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8f7c8d13-6b2b-4ab7-8617-f651d51886d0/bin-2019/utaipan/data/97bff0465/178b059912aa48b29de0d8983dcdb0b9/FLAG5b20d9e4e [2018-10-26 19:15:52,559 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 19:15:52,559 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_8f7c8d13-6b2b-4ab7-8617-f651d51886d0/sv-benchmarks/c/floats-cdfpl/newton_2_8_false-unreach-call_true-termination.i [2018-10-26 19:15:52,566 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8f7c8d13-6b2b-4ab7-8617-f651d51886d0/bin-2019/utaipan/data/97bff0465/178b059912aa48b29de0d8983dcdb0b9/FLAG5b20d9e4e [2018-10-26 19:15:52,580 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_8f7c8d13-6b2b-4ab7-8617-f651d51886d0/bin-2019/utaipan/data/97bff0465/178b059912aa48b29de0d8983dcdb0b9 [2018-10-26 19:15:52,583 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 19:15:52,584 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-26 19:15:52,585 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 19:15:52,585 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 19:15:52,588 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 19:15:52,589 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 07:15:52" (1/1) ... [2018-10-26 19:15:52,592 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@398f262c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:15:52, skipping insertion in model container [2018-10-26 19:15:52,592 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 07:15:52" (1/1) ... [2018-10-26 19:15:52,601 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 19:15:52,619 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 19:15:52,768 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 19:15:52,774 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 19:15:52,794 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 19:15:52,808 INFO L193 MainTranslator]: Completed translation [2018-10-26 19:15:52,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:15:52 WrapperNode [2018-10-26 19:15:52,809 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 19:15:52,810 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-26 19:15:52,810 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-26 19:15:52,810 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-26 19:15:52,819 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:15:52" (1/1) ... [2018-10-26 19:15:52,827 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:15:52" (1/1) ... [2018-10-26 19:15:52,833 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-26 19:15:52,834 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 19:15:52,834 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 19:15:52,834 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 19:15:52,843 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:15:52" (1/1) ... [2018-10-26 19:15:52,843 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:15:52" (1/1) ... [2018-10-26 19:15:52,845 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:15:52" (1/1) ... [2018-10-26 19:15:52,845 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:15:52" (1/1) ... [2018-10-26 19:15:52,850 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:15:52" (1/1) ... [2018-10-26 19:15:52,852 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:15:52" (1/1) ... [2018-10-26 19:15:52,854 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:15:52" (1/1) ... [2018-10-26 19:15:52,856 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 19:15:52,857 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 19:15:52,857 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 19:15:52,857 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 19:15:52,858 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:15:52" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8f7c8d13-6b2b-4ab7-8617-f651d51886d0/bin-2019/utaipan/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 [2018-10-26 19:15:52,917 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-26 19:15:52,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-26 19:15:52,918 INFO L130 BoogieDeclarations]: Found specification of procedure f [2018-10-26 19:15:52,918 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2018-10-26 19:15:52,918 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 19:15:52,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 19:15:52,918 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-26 19:15:52,918 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-26 19:15:52,918 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2018-10-26 19:15:52,919 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2018-10-26 19:16:00,158 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 19:16:00,158 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 07:16:00 BoogieIcfgContainer [2018-10-26 19:16:00,158 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 19:16:00,159 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 19:16:00,160 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 19:16:00,162 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 19:16:00,162 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 07:15:52" (1/3) ... [2018-10-26 19:16:00,164 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23b82745 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 07:16:00, skipping insertion in model container [2018-10-26 19:16:00,164 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:15:52" (2/3) ... [2018-10-26 19:16:00,165 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23b82745 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 07:16:00, skipping insertion in model container [2018-10-26 19:16:00,165 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 07:16:00" (3/3) ... [2018-10-26 19:16:00,166 INFO L112 eAbstractionObserver]: Analyzing ICFG newton_2_8_false-unreach-call_true-termination.i [2018-10-26 19:16:00,176 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 19:16:00,188 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-26 19:16:00,202 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-26 19:16:00,237 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-26 19:16:00,237 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 19:16:00,237 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 19:16:00,238 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 19:16:00,238 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 19:16:00,238 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 19:16:00,239 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 19:16:00,239 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 19:16:00,239 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 19:16:00,257 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2018-10-26 19:16:00,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-10-26 19:16:00,270 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 19:16:00,271 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 19:16:00,273 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 19:16:00,279 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 19:16:00,280 INFO L82 PathProgramCache]: Analyzing trace with hash 460512481, now seen corresponding path program 1 times [2018-10-26 19:16:00,284 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-26 19:16:00,285 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8f7c8d13-6b2b-4ab7-8617-f651d51886d0/bin-2019/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-10-26 19:16:00,293 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 19:16:11,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 19:16:21,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 19:16:21,517 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-10-26 19:16:21,550 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 07:16:21 BoogieIcfgContainer [2018-10-26 19:16:21,550 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-26 19:16:21,551 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-26 19:16:21,552 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-26 19:16:21,552 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-26 19:16:21,552 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 07:16:00" (3/4) ... [2018-10-26 19:16:21,554 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-10-26 19:16:21,601 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_8f7c8d13-6b2b-4ab7-8617-f651d51886d0/bin-2019/utaipan/witness.graphml [2018-10-26 19:16:21,601 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-26 19:16:21,602 INFO L168 Benchmark]: Toolchain (without parser) took 29018.93 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 953.2 MB in the beginning and 1.1 GB in the end (delta: -130.1 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-10-26 19:16:21,604 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 19:16:21,604 INFO L168 Benchmark]: CACSL2BoogieTranslator took 224.70 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 942.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-10-26 19:16:21,605 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.65 ms. Allocated memory is still 1.0 GB. Free memory was 942.5 MB in the beginning and 937.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-10-26 19:16:21,605 INFO L168 Benchmark]: Boogie Preprocessor took 22.95 ms. Allocated memory is still 1.0 GB. Free memory is still 937.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 19:16:21,606 INFO L168 Benchmark]: RCFGBuilder took 7301.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -174.4 MB). Peak memory consumption was 21.8 MB. Max. memory is 11.5 GB. [2018-10-26 19:16:21,606 INFO L168 Benchmark]: TraceAbstraction took 21391.05 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: 21.3 MB). Peak memory consumption was 21.3 MB. Max. memory is 11.5 GB. [2018-10-26 19:16:21,608 INFO L168 Benchmark]: Witness Printer took 50.03 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2018-10-26 19:16:21,611 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 224.70 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 942.5 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 23.65 ms. Allocated memory is still 1.0 GB. Free memory was 942.5 MB in the beginning and 937.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 22.95 ms. Allocated memory is still 1.0 GB. Free memory is still 937.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 7301.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -174.4 MB). Peak memory consumption was 21.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 21391.05 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: 21.3 MB). Peak memory consumption was 21.3 MB. Max. memory is 11.5 GB. * Witness Printer took 50.03 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: 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: - CounterExampleResult [Line: 28]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L16] float IN = __VERIFIER_nondet_float(); [L19] CALL, EXPR f(IN) VAL [\old(x)=-1.6198437213897705] [L6] RET return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=-1.6198437213897705, \result=-1.0102028846740723, x=-1.6198437213897705] [L19] EXPR f(IN) VAL [f(IN)=-1.0102028846740723, IN=-1.6198437213897705] [L19] CALL, EXPR fp(IN) VAL [\old(x)=-1.6198437213897705] [L11] RET return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=-1.6198437213897705, \result=0.000010894611477851868, x=-1.6198437213897705] [L19] EXPR fp(IN) VAL [f(IN)=-1.0102028846740723, fp(IN)=0.000010894611477851868, IN=-1.6198437213897705] [L19] float x = IN - f(IN)/fp(IN); [L21] CALL, EXPR f(x) VAL [\old(x)=92723.3828125] [L6] RET return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=92723.3828125, \result=11692150242919278000000000000000, x=92723.3828125] [L21] EXPR f(x) VAL [f(x)=11692150242919278000000000000000, IN=-1.6198437213897705, x=92723.3828125] [L21] CALL, EXPR fp(x) VAL [\old(x)=92723.3828125] [L11] RET return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=92723.3828125, \result=882679802980006400000000000, x=92723.3828125] [L21] EXPR fp(x) VAL [f(x)=11692150242919278000000000000000, fp(x)=882679802980006400000000000, IN=-1.6198437213897705, x=92723.3828125] [L21] x = x - f(x)/fp(x) [L27] COND TRUE !(x < 0.1) VAL [IN=-1.6198437213897705, x=79477.1875] [L28] __VERIFIER_error() VAL [IN=-1.6198437213897705, x=79477.1875] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 25 locations, 1 error locations. UNSAFE Result, 21.3s OverallTime, 1 OverallIterations, 2 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred 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, 11.3s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 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 proved your program to be incorrect! Received shutdown request...