./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.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 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_1dab5451-4d6d-41f3-a0df-a81d44c681f1/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_1dab5451-4d6d-41f3-a0df-a81d44c681f1/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_1dab5451-4d6d-41f3-a0df-a81d44c681f1/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_1dab5451-4d6d-41f3-a0df-a81d44c681f1/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_1dab5451-4d6d-41f3-a0df-a81d44c681f1/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_1dab5451-4d6d-41f3-a0df-a81d44c681f1/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_1dab5451-4d6d-41f3-a0df-a81d44c681f1/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_1dab5451-4d6d-41f3-a0df-a81d44c681f1/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_1dab5451-4d6d-41f3-a0df-a81d44c681f1/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_1dab5451-4d6d-41f3-a0df-a81d44c681f1/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_1dab5451-4d6d-41f3-a0df-a81d44c681f1/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_1dab5451-4d6d-41f3-a0df-a81d44c681f1/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 0.1.23-635dfa2 [2018-12-08 19:11:05,610 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 19:11:05,611 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 19:11:05,617 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 19:11:05,617 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 19:11:05,618 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 19:11:05,618 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 19:11:05,619 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 19:11:05,620 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 19:11:05,620 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 19:11:05,621 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 19:11:05,621 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 19:11:05,621 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 19:11:05,622 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 19:11:05,622 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 19:11:05,622 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 19:11:05,623 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 19:11:05,624 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 19:11:05,625 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 19:11:05,625 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 19:11:05,626 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 19:11:05,626 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 19:11:05,627 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 19:11:05,628 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 19:11:05,628 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 19:11:05,628 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 19:11:05,628 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 19:11:05,629 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 19:11:05,629 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 19:11:05,630 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 19:11:05,630 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 19:11:05,630 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 19:11:05,630 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 19:11:05,630 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 19:11:05,631 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 19:11:05,631 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 19:11:05,631 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_1dab5451-4d6d-41f3-a0df-a81d44c681f1/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-08 19:11:05,638 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 19:11:05,638 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 19:11:05,639 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 19:11:05,639 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-08 19:11:05,639 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-08 19:11:05,639 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-08 19:11:05,639 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-08 19:11:05,640 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-08 19:11:05,640 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-08 19:11:05,640 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-08 19:11:05,640 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-08 19:11:05,640 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-08 19:11:05,640 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-08 19:11:05,641 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 19:11:05,641 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 19:11:05,641 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 19:11:05,641 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 19:11:05,641 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 19:11:05,641 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-08 19:11:05,641 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 19:11:05,642 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-08 19:11:05,642 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 19:11:05,642 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 19:11:05,642 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-08 19:11:05,642 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 19:11:05,642 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 19:11:05,642 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 19:11:05,642 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-08 19:11:05,643 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 19:11:05,643 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 19:11:05,643 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 19:11:05,643 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-08 19:11:05,643 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-08 19:11:05,643 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 19:11:05,643 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-08 19:11:05,643 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-08 19:11:05,644 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_1dab5451-4d6d-41f3-a0df-a81d44c681f1/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 [2018-12-08 19:11:05,660 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 19:11:05,667 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 19:11:05,669 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 19:11:05,670 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 19:11:05,670 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 19:11:05,671 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_1dab5451-4d6d-41f3-a0df-a81d44c681f1/bin-2019/utaipan/../../sv-benchmarks/c/floats-cdfpl/newton_2_8_false-unreach-call_true-termination.i [2018-12-08 19:11:05,709 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1dab5451-4d6d-41f3-a0df-a81d44c681f1/bin-2019/utaipan/data/70512d5bf/bb1f79a33f7645039064a59d1fbc4ed5/FLAGef23e4d47 [2018-12-08 19:11:06,122 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 19:11:06,123 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_1dab5451-4d6d-41f3-a0df-a81d44c681f1/sv-benchmarks/c/floats-cdfpl/newton_2_8_false-unreach-call_true-termination.i [2018-12-08 19:11:06,126 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1dab5451-4d6d-41f3-a0df-a81d44c681f1/bin-2019/utaipan/data/70512d5bf/bb1f79a33f7645039064a59d1fbc4ed5/FLAGef23e4d47 [2018-12-08 19:11:06,134 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_1dab5451-4d6d-41f3-a0df-a81d44c681f1/bin-2019/utaipan/data/70512d5bf/bb1f79a33f7645039064a59d1fbc4ed5 [2018-12-08 19:11:06,136 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 19:11:06,137 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 19:11:06,137 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 19:11:06,137 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 19:11:06,139 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 19:11:06,140 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 07:11:06" (1/1) ... [2018-12-08 19:11:06,141 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@96971f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:11:06, skipping insertion in model container [2018-12-08 19:11:06,141 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 07:11:06" (1/1) ... [2018-12-08 19:11:06,146 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 19:11:06,155 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 19:11:06,242 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 19:11:06,244 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 19:11:06,255 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 19:11:06,262 INFO L195 MainTranslator]: Completed translation [2018-12-08 19:11:06,262 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:11:06 WrapperNode [2018-12-08 19:11:06,263 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 19:11:06,263 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 19:11:06,263 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 19:11:06,263 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 19:11:06,268 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:11:06" (1/1) ... [2018-12-08 19:11:06,271 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:11:06" (1/1) ... [2018-12-08 19:11:06,274 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 19:11:06,274 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 19:11:06,275 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 19:11:06,275 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 19:11:06,279 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:11:06" (1/1) ... [2018-12-08 19:11:06,280 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:11:06" (1/1) ... [2018-12-08 19:11:06,280 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:11:06" (1/1) ... [2018-12-08 19:11:06,280 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:11:06" (1/1) ... [2018-12-08 19:11:06,283 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:11:06" (1/1) ... [2018-12-08 19:11:06,284 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:11:06" (1/1) ... [2018-12-08 19:11:06,284 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:11:06" (1/1) ... [2018-12-08 19:11:06,285 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 19:11:06,285 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 19:11:06,285 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 19:11:06,285 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 19:11:06,286 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:11:06" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1dab5451-4d6d-41f3-a0df-a81d44c681f1/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 [2018-12-08 19:11:06,343 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-08 19:11:06,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-08 19:11:06,344 INFO L130 BoogieDeclarations]: Found specification of procedure f [2018-12-08 19:11:06,344 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2018-12-08 19:11:06,344 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 19:11:06,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 19:11:06,344 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2018-12-08 19:11:06,344 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2018-12-08 19:11:06,344 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-08 19:11:06,344 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-08 19:11:06,430 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 19:11:06,430 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-08 19:11:06,430 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 07:11:06 BoogieIcfgContainer [2018-12-08 19:11:06,430 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 19:11:06,431 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-08 19:11:06,431 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-08 19:11:06,433 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-08 19:11:06,433 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 07:11:06" (1/3) ... [2018-12-08 19:11:06,433 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4167dd1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 07:11:06, skipping insertion in model container [2018-12-08 19:11:06,433 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:11:06" (2/3) ... [2018-12-08 19:11:06,434 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4167dd1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 07:11:06, skipping insertion in model container [2018-12-08 19:11:06,434 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 07:11:06" (3/3) ... [2018-12-08 19:11:06,434 INFO L112 eAbstractionObserver]: Analyzing ICFG newton_2_8_false-unreach-call_true-termination.i [2018-12-08 19:11:06,440 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-08 19:11:06,444 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-08 19:11:06,453 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-08 19:11:06,472 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-08 19:11:06,472 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-08 19:11:06,473 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-08 19:11:06,473 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 19:11:06,473 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 19:11:06,473 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-08 19:11:06,473 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 19:11:06,473 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-08 19:11:06,487 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2018-12-08 19:11:06,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-08 19:11:06,491 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 19:11:06,492 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 19:11:06,493 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 19:11:06,496 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 19:11:06,496 INFO L82 PathProgramCache]: Analyzing trace with hash 784971363, now seen corresponding path program 1 times [2018-12-08 19:11:06,497 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 19:11:06,526 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 19:11:06,526 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 19:11:06,526 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 19:11:06,526 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 19:11:06,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 19:11:06,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 19:11:06,566 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-08 19:11:06,581 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 07:11:06 BoogieIcfgContainer [2018-12-08 19:11:06,581 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-08 19:11:06,582 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 19:11:06,582 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 19:11:06,582 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 19:11:06,582 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 07:11:06" (3/4) ... [2018-12-08 19:11:06,584 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-08 19:11:06,584 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 19:11:06,585 INFO L168 Benchmark]: Toolchain (without parser) took 448.85 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 953.5 MB in the beginning and 1.1 GB in the end (delta: -157.9 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 19:11:06,586 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 19:11:06,586 INFO L168 Benchmark]: CACSL2BoogieTranslator took 125.75 ms. Allocated memory is still 1.0 GB. Free memory was 953.5 MB in the beginning and 942.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-08 19:11:06,587 INFO L168 Benchmark]: Boogie Procedure Inliner took 11.35 ms. Allocated memory is still 1.0 GB. Free memory is still 942.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 19:11:06,587 INFO L168 Benchmark]: Boogie Preprocessor took 10.74 ms. Allocated memory is still 1.0 GB. Free memory was 942.7 MB in the beginning and 937.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-08 19:11:06,587 INFO L168 Benchmark]: RCFGBuilder took 145.20 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 937.4 MB in the beginning and 1.1 GB in the end (delta: -187.5 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. [2018-12-08 19:11:06,588 INFO L168 Benchmark]: TraceAbstraction took 150.47 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: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. [2018-12-08 19:11:06,588 INFO L168 Benchmark]: Witness Printer took 2.95 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. [2018-12-08 19:11:06,590 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 125.75 ms. Allocated memory is still 1.0 GB. Free memory was 953.5 MB in the beginning and 942.7 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 11.35 ms. Allocated memory is still 1.0 GB. Free memory is still 942.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 10.74 ms. Allocated memory is still 1.0 GB. Free memory was 942.7 MB in the beginning and 937.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 145.20 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 937.4 MB in the beginning and 1.1 GB in the end (delta: -187.5 MB). Peak memory consumption was 13.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 150.47 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: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. * Witness Printer took 2.95 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] 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] RET, EXPR f(IN) VAL [f(IN)=4, IN=5] [L19] CALL, EXPR fp(IN) VAL [\old(x)=5] [L11] 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] RET, 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] 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] RET, EXPR f(x) VAL [f(x)=3, IN=5, x=2] [L21] CALL, EXPR fp(x) VAL [\old(x)=2] [L11] 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] RET, 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, 0.1s 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 0.1.23-635dfa2 [2018-12-08 19:11:07,868 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 19:11:07,869 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 19:11:07,876 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 19:11:07,876 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 19:11:07,876 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 19:11:07,877 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 19:11:07,878 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 19:11:07,878 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 19:11:07,879 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 19:11:07,879 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 19:11:07,879 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 19:11:07,880 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 19:11:07,880 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 19:11:07,881 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 19:11:07,881 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 19:11:07,882 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 19:11:07,882 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 19:11:07,883 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 19:11:07,884 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 19:11:07,885 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 19:11:07,885 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 19:11:07,886 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 19:11:07,886 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 19:11:07,887 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 19:11:07,887 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 19:11:07,888 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 19:11:07,888 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 19:11:07,888 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 19:11:07,889 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 19:11:07,889 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 19:11:07,889 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 19:11:07,890 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 19:11:07,890 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 19:11:07,890 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 19:11:07,891 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 19:11:07,891 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_1dab5451-4d6d-41f3-a0df-a81d44c681f1/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-12-08 19:11:07,898 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 19:11:07,898 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 19:11:07,899 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 19:11:07,899 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-08 19:11:07,899 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-08 19:11:07,899 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-08 19:11:07,899 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-08 19:11:07,899 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-08 19:11:07,899 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-08 19:11:07,899 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-08 19:11:07,900 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 19:11:07,900 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 19:11:07,900 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 19:11:07,900 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 19:11:07,900 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-08 19:11:07,900 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 19:11:07,901 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-08 19:11:07,901 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-08 19:11:07,901 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-08 19:11:07,901 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 19:11:07,901 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 19:11:07,901 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-08 19:11:07,901 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-08 19:11:07,902 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 19:11:07,902 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 19:11:07,902 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 19:11:07,902 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-08 19:11:07,902 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 19:11:07,902 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 19:11:07,902 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 19:11:07,902 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-08 19:11:07,903 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-12-08 19:11:07,903 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 19:11:07,903 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-08 19:11:07,903 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-08 19:11:07,903 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_1dab5451-4d6d-41f3-a0df-a81d44c681f1/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 [2018-12-08 19:11:07,922 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 19:11:07,931 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 19:11:07,934 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 19:11:07,935 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 19:11:07,935 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 19:11:07,936 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_1dab5451-4d6d-41f3-a0df-a81d44c681f1/bin-2019/utaipan/../../sv-benchmarks/c/floats-cdfpl/newton_2_8_false-unreach-call_true-termination.i [2018-12-08 19:11:07,982 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1dab5451-4d6d-41f3-a0df-a81d44c681f1/bin-2019/utaipan/data/a6cfb0a5f/73f33d98d5d14c6c8289b8bfbf3135ba/FLAG36370e0d2 [2018-12-08 19:11:08,362 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 19:11:08,362 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_1dab5451-4d6d-41f3-a0df-a81d44c681f1/sv-benchmarks/c/floats-cdfpl/newton_2_8_false-unreach-call_true-termination.i [2018-12-08 19:11:08,366 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1dab5451-4d6d-41f3-a0df-a81d44c681f1/bin-2019/utaipan/data/a6cfb0a5f/73f33d98d5d14c6c8289b8bfbf3135ba/FLAG36370e0d2 [2018-12-08 19:11:08,373 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_1dab5451-4d6d-41f3-a0df-a81d44c681f1/bin-2019/utaipan/data/a6cfb0a5f/73f33d98d5d14c6c8289b8bfbf3135ba [2018-12-08 19:11:08,375 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 19:11:08,376 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 19:11:08,376 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 19:11:08,377 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 19:11:08,379 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 19:11:08,379 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 07:11:08" (1/1) ... [2018-12-08 19:11:08,381 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38f84493 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:11:08, skipping insertion in model container [2018-12-08 19:11:08,381 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 07:11:08" (1/1) ... [2018-12-08 19:11:08,385 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 19:11:08,394 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 19:11:08,481 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 19:11:08,484 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 19:11:08,496 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 19:11:08,504 INFO L195 MainTranslator]: Completed translation [2018-12-08 19:11:08,504 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:11:08 WrapperNode [2018-12-08 19:11:08,505 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 19:11:08,505 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 19:11:08,505 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 19:11:08,505 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 19:11:08,511 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:11:08" (1/1) ... [2018-12-08 19:11:08,515 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:11:08" (1/1) ... [2018-12-08 19:11:08,519 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 19:11:08,519 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 19:11:08,519 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 19:11:08,519 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 19:11:08,525 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:11:08" (1/1) ... [2018-12-08 19:11:08,525 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:11:08" (1/1) ... [2018-12-08 19:11:08,526 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:11:08" (1/1) ... [2018-12-08 19:11:08,526 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:11:08" (1/1) ... [2018-12-08 19:11:08,531 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:11:08" (1/1) ... [2018-12-08 19:11:08,532 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:11:08" (1/1) ... [2018-12-08 19:11:08,533 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:11:08" (1/1) ... [2018-12-08 19:11:08,534 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 19:11:08,534 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 19:11:08,534 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 19:11:08,534 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 19:11:08,535 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:11:08" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1dab5451-4d6d-41f3-a0df-a81d44c681f1/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 [2018-12-08 19:11:08,596 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-08 19:11:08,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-08 19:11:08,597 INFO L130 BoogieDeclarations]: Found specification of procedure f [2018-12-08 19:11:08,597 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2018-12-08 19:11:08,597 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 19:11:08,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 19:11:08,597 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2018-12-08 19:11:08,597 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2018-12-08 19:11:08,597 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-08 19:11:08,597 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-08 19:11:14,690 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 19:11:14,690 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-08 19:11:14,691 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 07:11:14 BoogieIcfgContainer [2018-12-08 19:11:14,691 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 19:11:14,691 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-08 19:11:14,691 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-08 19:11:14,693 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-08 19:11:14,693 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 07:11:08" (1/3) ... [2018-12-08 19:11:14,693 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@173e50ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 07:11:14, skipping insertion in model container [2018-12-08 19:11:14,693 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 07:11:08" (2/3) ... [2018-12-08 19:11:14,694 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@173e50ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 07:11:14, skipping insertion in model container [2018-12-08 19:11:14,694 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 07:11:14" (3/3) ... [2018-12-08 19:11:14,695 INFO L112 eAbstractionObserver]: Analyzing ICFG newton_2_8_false-unreach-call_true-termination.i [2018-12-08 19:11:14,700 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-08 19:11:14,706 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-08 19:11:14,718 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-08 19:11:14,734 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-08 19:11:14,735 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-08 19:11:14,735 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-08 19:11:14,735 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-08 19:11:14,735 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 19:11:14,735 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 19:11:14,735 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-08 19:11:14,735 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 19:11:14,735 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-08 19:11:14,745 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2018-12-08 19:11:14,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-08 19:11:14,748 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 19:11:14,748 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-08 19:11:14,750 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 19:11:14,753 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 19:11:14,753 INFO L82 PathProgramCache]: Analyzing trace with hash 784971363, now seen corresponding path program 1 times [2018-12-08 19:11:14,755 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-08 19:11:14,756 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1dab5451-4d6d-41f3-a0df-a81d44c681f1/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 [2018-12-08 19:11:14,760 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 19:11:20,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 19:11:29,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 19:11:30,220 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-08 19:11:30,244 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 07:11:30 BoogieIcfgContainer [2018-12-08 19:11:30,244 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-08 19:11:30,244 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 19:11:30,244 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 19:11:30,244 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 19:11:30,245 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 07:11:14" (3/4) ... [2018-12-08 19:11:30,246 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-08 19:11:30,273 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_1dab5451-4d6d-41f3-a0df-a81d44c681f1/bin-2019/utaipan/witness.graphml [2018-12-08 19:11:30,273 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 19:11:30,274 INFO L168 Benchmark]: Toolchain (without parser) took 21898.48 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -132.3 MB). Peak memory consumption was 8.8 MB. Max. memory is 11.5 GB. [2018-12-08 19:11:30,275 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 19:11:30,275 INFO L168 Benchmark]: CACSL2BoogieTranslator took 128.46 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 932.6 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2018-12-08 19:11:30,275 INFO L168 Benchmark]: Boogie Procedure Inliner took 13.85 ms. Allocated memory is still 1.0 GB. Free memory is still 932.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 19:11:30,275 INFO L168 Benchmark]: Boogie Preprocessor took 14.73 ms. Allocated memory is still 1.0 GB. Free memory was 932.6 MB in the beginning and 927.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-08 19:11:30,276 INFO L168 Benchmark]: RCFGBuilder took 6156.67 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 927.3 MB in the beginning and 1.1 GB in the end (delta: -182.4 MB). Peak memory consumption was 13.7 MB. Max. memory is 11.5 GB. [2018-12-08 19:11:30,276 INFO L168 Benchmark]: TraceAbstraction took 15552.92 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: 32.6 MB). Peak memory consumption was 32.6 MB. Max. memory is 11.5 GB. [2018-12-08 19:11:30,276 INFO L168 Benchmark]: Witness Printer took 29.10 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. [2018-12-08 19:11:30,277 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 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 128.46 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 932.6 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 13.85 ms. Allocated memory is still 1.0 GB. Free memory is still 932.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 14.73 ms. Allocated memory is still 1.0 GB. Free memory was 932.6 MB in the beginning and 927.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 6156.67 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 927.3 MB in the beginning and 1.1 GB in the end (delta: -182.4 MB). Peak memory consumption was 13.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 15552.92 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: 32.6 MB). Peak memory consumption was 32.6 MB. Max. memory is 11.5 GB. * Witness Printer took 29.10 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: - 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)=-1.260115623474121] [L6] 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)=-1.260115623474121, \result=-0.9541059732437134, x=-1.260115623474121] [L19] RET, EXPR f(IN) VAL [f(IN)=-0.9541059732437134, IN=-1.260115623474121] [L19] CALL, EXPR fp(IN) VAL [\old(x)=-1.260115623474121] [L11] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=-1.260115623474121, \result=0.31667330861091614, x=-1.260115623474121] [L19] RET, EXPR fp(IN) VAL [f(IN)=-0.9541059732437134, fp(IN)=0.31667330861091614, IN=-1.260115623474121] [L19] float x = IN - f(IN)/fp(IN); [L21] CALL, EXPR f(x) VAL [\old(x)=1.7527873516082764] [L6] 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)=1.7527873516082764, \result=1.0032366514205933, x=1.7527873516082764] [L21] RET, EXPR f(x) VAL [f(x)=1.0032366514205933, IN=-1.260115623474121, x=1.7527873516082764] [L21] CALL, EXPR fp(x) VAL [\old(x)=1.7527873516082764] [L11] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=1.7527873516082764, \result=-0.10257260501384735, x=1.7527873516082764] [L21] RET, EXPR fp(x) VAL [f(x)=1.0032366514205933, fp(x)=-0.10257260501384735, IN=-1.260115623474121, x=1.7527873516082764] [L21] x = x - f(x)/fp(x) [L27] COND TRUE !(x < 0.1) VAL [IN=-1.260115623474121, x=11.533534049987793] [L28] __VERIFIER_error() VAL [IN=-1.260115623474121, x=11.533534049987793] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 25 locations, 1 error locations. UNSAFE Result, 15.5s 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, 5.8s 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...