./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cdfpl/newton_2_6_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_3699f0c1-b152-4a7e-974b-3219ce0b50f0/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_3699f0c1-b152-4a7e-974b-3219ce0b50f0/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_3699f0c1-b152-4a7e-974b-3219ce0b50f0/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_3699f0c1-b152-4a7e-974b-3219ce0b50f0/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_2_6_false-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_3699f0c1-b152-4a7e-974b-3219ce0b50f0/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_3699f0c1-b152-4a7e-974b-3219ce0b50f0/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 67c4f5f280d9686f1a0cd5046481e7418df9e155 ........................................................................................................................................................................................................................................................................ 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_3699f0c1-b152-4a7e-974b-3219ce0b50f0/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_3699f0c1-b152-4a7e-974b-3219ce0b50f0/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_3699f0c1-b152-4a7e-974b-3219ce0b50f0/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_3699f0c1-b152-4a7e-974b-3219ce0b50f0/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_2_6_false-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_3699f0c1-b152-4a7e-974b-3219ce0b50f0/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_3699f0c1-b152-4a7e-974b-3219ce0b50f0/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 67c4f5f280d9686f1a0cd5046481e7418df9e155 .............................................................................................................................................................................................................................................................. 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 17:51:39,195 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 17:51:39,196 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 17:51:39,202 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 17:51:39,202 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 17:51:39,202 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 17:51:39,203 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 17:51:39,204 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 17:51:39,205 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 17:51:39,205 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 17:51:39,205 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 17:51:39,205 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 17:51:39,206 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 17:51:39,206 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 17:51:39,207 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 17:51:39,207 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 17:51:39,208 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 17:51:39,208 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 17:51:39,209 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 17:51:39,210 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 17:51:39,210 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 17:51:39,211 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 17:51:39,212 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 17:51:39,212 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 17:51:39,212 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 17:51:39,213 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 17:51:39,213 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 17:51:39,213 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 17:51:39,214 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 17:51:39,214 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 17:51:39,214 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 17:51:39,215 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 17:51:39,215 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 17:51:39,215 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 17:51:39,215 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 17:51:39,216 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 17:51:39,216 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_3699f0c1-b152-4a7e-974b-3219ce0b50f0/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-08 17:51:39,223 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 17:51:39,223 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 17:51:39,224 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 17:51:39,224 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-08 17:51:39,224 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-08 17:51:39,224 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-08 17:51:39,224 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-08 17:51:39,224 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-08 17:51:39,224 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-08 17:51:39,224 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-08 17:51:39,224 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-08 17:51:39,224 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-08 17:51:39,225 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-08 17:51:39,225 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 17:51:39,225 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 17:51:39,225 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-08 17:51:39,225 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 17:51:39,225 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 17:51:39,225 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-08 17:51:39,225 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 17:51:39,226 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-08 17:51:39,226 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 17:51:39,226 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 17:51:39,226 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-08 17:51:39,226 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 17:51:39,226 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 17:51:39,226 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 17:51:39,226 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-08 17:51:39,226 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 17:51:39,226 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 17:51:39,226 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 17:51:39,227 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-08 17:51:39,227 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-08 17:51:39,227 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 17:51:39,227 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-08 17:51:39,227 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-08 17:51:39,227 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_3699f0c1-b152-4a7e-974b-3219ce0b50f0/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 -> 67c4f5f280d9686f1a0cd5046481e7418df9e155 [2018-12-08 17:51:39,244 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 17:51:39,251 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 17:51:39,253 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 17:51:39,253 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 17:51:39,254 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 17:51:39,254 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_3699f0c1-b152-4a7e-974b-3219ce0b50f0/bin-2019/utaipan/../../sv-benchmarks/c/floats-cdfpl/newton_2_6_false-unreach-call_true-termination.i [2018-12-08 17:51:39,287 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3699f0c1-b152-4a7e-974b-3219ce0b50f0/bin-2019/utaipan/data/3dc006789/ff2119c9b4414d5c936109b1124bab61/FLAGf28b536da [2018-12-08 17:51:39,636 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 17:51:39,637 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_3699f0c1-b152-4a7e-974b-3219ce0b50f0/sv-benchmarks/c/floats-cdfpl/newton_2_6_false-unreach-call_true-termination.i [2018-12-08 17:51:39,640 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3699f0c1-b152-4a7e-974b-3219ce0b50f0/bin-2019/utaipan/data/3dc006789/ff2119c9b4414d5c936109b1124bab61/FLAGf28b536da [2018-12-08 17:51:40,016 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_3699f0c1-b152-4a7e-974b-3219ce0b50f0/bin-2019/utaipan/data/3dc006789/ff2119c9b4414d5c936109b1124bab61 [2018-12-08 17:51:40,017 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 17:51:40,018 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 17:51:40,019 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 17:51:40,019 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 17:51:40,021 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 17:51:40,021 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 05:51:40" (1/1) ... [2018-12-08 17:51:40,023 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cf0b28c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:51:40, skipping insertion in model container [2018-12-08 17:51:40,023 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 05:51:40" (1/1) ... [2018-12-08 17:51:40,027 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 17:51:40,036 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 17:51:40,122 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 17:51:40,124 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 17:51:40,134 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 17:51:40,142 INFO L195 MainTranslator]: Completed translation [2018-12-08 17:51:40,142 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:51:40 WrapperNode [2018-12-08 17:51:40,142 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 17:51:40,142 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 17:51:40,143 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 17:51:40,143 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 17:51:40,147 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:51:40" (1/1) ... [2018-12-08 17:51:40,151 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:51:40" (1/1) ... [2018-12-08 17:51:40,154 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 17:51:40,155 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 17:51:40,155 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 17:51:40,155 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 17:51:40,160 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:51:40" (1/1) ... [2018-12-08 17:51:40,160 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:51:40" (1/1) ... [2018-12-08 17:51:40,160 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:51:40" (1/1) ... [2018-12-08 17:51:40,161 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:51:40" (1/1) ... [2018-12-08 17:51:40,164 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:51:40" (1/1) ... [2018-12-08 17:51:40,165 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:51:40" (1/1) ... [2018-12-08 17:51:40,165 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:51:40" (1/1) ... [2018-12-08 17:51:40,166 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 17:51:40,166 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 17:51:40,166 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 17:51:40,166 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 17:51:40,167 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:51:40" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3699f0c1-b152-4a7e-974b-3219ce0b50f0/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 17:51:40,229 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-08 17:51:40,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-08 17:51:40,229 INFO L130 BoogieDeclarations]: Found specification of procedure f [2018-12-08 17:51:40,229 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2018-12-08 17:51:40,229 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 17:51:40,229 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 17:51:40,229 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2018-12-08 17:51:40,229 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2018-12-08 17:51:40,230 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-08 17:51:40,230 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-08 17:51:40,303 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 17:51:40,303 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-08 17:51:40,304 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 05:51:40 BoogieIcfgContainer [2018-12-08 17:51:40,304 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 17:51:40,304 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-08 17:51:40,304 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-08 17:51:40,306 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-08 17:51:40,306 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 05:51:40" (1/3) ... [2018-12-08 17:51:40,307 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b450724 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 05:51:40, skipping insertion in model container [2018-12-08 17:51:40,307 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:51:40" (2/3) ... [2018-12-08 17:51:40,307 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b450724 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 05:51:40, skipping insertion in model container [2018-12-08 17:51:40,307 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 05:51:40" (3/3) ... [2018-12-08 17:51:40,308 INFO L112 eAbstractionObserver]: Analyzing ICFG newton_2_6_false-unreach-call_true-termination.i [2018-12-08 17:51:40,314 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-08 17:51:40,318 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-08 17:51:40,328 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-08 17:51:40,346 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-08 17:51:40,346 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-08 17:51:40,346 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-08 17:51:40,346 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 17:51:40,347 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 17:51:40,347 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-08 17:51:40,347 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 17:51:40,347 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-08 17:51:40,357 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2018-12-08 17:51:40,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-08 17:51:40,361 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 17:51:40,361 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 17:51:40,362 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 17:51:40,366 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:51:40,366 INFO L82 PathProgramCache]: Analyzing trace with hash 784971363, now seen corresponding path program 1 times [2018-12-08 17:51:40,367 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-08 17:51:40,396 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:51:40,396 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 17:51:40,396 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-08 17:51:40,396 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-08 17:51:40,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 17:51:40,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 17:51:40,439 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-08 17:51:40,455 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 05:51:40 BoogieIcfgContainer [2018-12-08 17:51:40,455 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-08 17:51:40,456 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 17:51:40,456 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 17:51:40,456 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 17:51:40,456 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 05:51:40" (3/4) ... [2018-12-08 17:51:40,459 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-08 17:51:40,459 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 17:51:40,459 INFO L168 Benchmark]: Toolchain (without parser) took 441.58 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.9 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -122.8 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 17:51:40,460 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 17:51:40,461 INFO L168 Benchmark]: CACSL2BoogieTranslator took 123.54 ms. Allocated memory is still 1.0 GB. Free memory was 952.4 MB in the beginning and 941.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-08 17:51:40,461 INFO L168 Benchmark]: Boogie Procedure Inliner took 12.00 ms. Allocated memory is still 1.0 GB. Free memory is still 941.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 17:51:40,461 INFO L168 Benchmark]: Boogie Preprocessor took 11.58 ms. Allocated memory is still 1.0 GB. Free memory was 941.6 MB in the beginning and 936.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-08 17:51:40,462 INFO L168 Benchmark]: RCFGBuilder took 137.58 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.9 MB). Free memory was 936.3 MB in the beginning and 1.1 GB in the end (delta: -156.1 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB. [2018-12-08 17:51:40,462 INFO L168 Benchmark]: TraceAbstraction took 151.19 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. [2018-12-08 17:51:40,463 INFO L168 Benchmark]: Witness Printer took 3.10 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-08 17:51:40,464 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 123.54 ms. Allocated memory is still 1.0 GB. Free memory was 952.4 MB in the beginning and 941.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 12.00 ms. Allocated memory is still 1.0 GB. Free memory is still 941.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 11.58 ms. Allocated memory is still 1.0 GB. Free memory was 941.6 MB in the beginning and 936.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 137.58 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.9 MB). Free memory was 936.3 MB in the beginning and 1.1 GB in the end (delta: -156.1 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 151.19 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. * Witness Printer took 3.10 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 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 17:51:41,693 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-08 17:51:41,694 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-08 17:51:41,700 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-08 17:51:41,701 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-08 17:51:41,701 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-08 17:51:41,702 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-08 17:51:41,702 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-08 17:51:41,703 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-08 17:51:41,704 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-08 17:51:41,704 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-08 17:51:41,704 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-08 17:51:41,704 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-08 17:51:41,705 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-08 17:51:41,705 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-08 17:51:41,706 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-08 17:51:41,706 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-08 17:51:41,707 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-08 17:51:41,708 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-08 17:51:41,709 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-08 17:51:41,709 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-08 17:51:41,710 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-08 17:51:41,711 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-08 17:51:41,711 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-08 17:51:41,711 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-08 17:51:41,711 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-08 17:51:41,712 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-08 17:51:41,712 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-08 17:51:41,713 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-08 17:51:41,713 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-08 17:51:41,713 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-08 17:51:41,714 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-08 17:51:41,714 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-08 17:51:41,714 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-08 17:51:41,714 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-08 17:51:41,715 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-08 17:51:41,715 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_3699f0c1-b152-4a7e-974b-3219ce0b50f0/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-12-08 17:51:41,722 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-08 17:51:41,722 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-08 17:51:41,723 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-08 17:51:41,723 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-08 17:51:41,723 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-08 17:51:41,723 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-08 17:51:41,723 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-08 17:51:41,723 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-08 17:51:41,723 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-08 17:51:41,723 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-08 17:51:41,724 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-08 17:51:41,724 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-08 17:51:41,724 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-08 17:51:41,724 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-08 17:51:41,724 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-08 17:51:41,724 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-08 17:51:41,724 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-08 17:51:41,724 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-08 17:51:41,724 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-08 17:51:41,724 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-08 17:51:41,725 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-08 17:51:41,725 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-08 17:51:41,725 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-08 17:51:41,725 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-08 17:51:41,725 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-08 17:51:41,725 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-08 17:51:41,725 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-08 17:51:41,725 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-08 17:51:41,725 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-08 17:51:41,725 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-08 17:51:41,726 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-08 17:51:41,726 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-12-08 17:51:41,726 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-08 17:51:41,726 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-08 17:51:41,726 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-08 17:51:41,726 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_3699f0c1-b152-4a7e-974b-3219ce0b50f0/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 -> 67c4f5f280d9686f1a0cd5046481e7418df9e155 [2018-12-08 17:51:41,744 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-08 17:51:41,753 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-08 17:51:41,756 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-08 17:51:41,757 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-08 17:51:41,758 INFO L276 PluginConnector]: CDTParser initialized [2018-12-08 17:51:41,758 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_3699f0c1-b152-4a7e-974b-3219ce0b50f0/bin-2019/utaipan/../../sv-benchmarks/c/floats-cdfpl/newton_2_6_false-unreach-call_true-termination.i [2018-12-08 17:51:41,805 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3699f0c1-b152-4a7e-974b-3219ce0b50f0/bin-2019/utaipan/data/7fe7aa6d8/92fad3e934f54d42aea22e77c2e34b3f/FLAGab45f92da [2018-12-08 17:51:42,195 INFO L307 CDTParser]: Found 1 translation units. [2018-12-08 17:51:42,195 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_3699f0c1-b152-4a7e-974b-3219ce0b50f0/sv-benchmarks/c/floats-cdfpl/newton_2_6_false-unreach-call_true-termination.i [2018-12-08 17:51:42,199 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3699f0c1-b152-4a7e-974b-3219ce0b50f0/bin-2019/utaipan/data/7fe7aa6d8/92fad3e934f54d42aea22e77c2e34b3f/FLAGab45f92da [2018-12-08 17:51:42,206 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_3699f0c1-b152-4a7e-974b-3219ce0b50f0/bin-2019/utaipan/data/7fe7aa6d8/92fad3e934f54d42aea22e77c2e34b3f [2018-12-08 17:51:42,208 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-08 17:51:42,209 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-08 17:51:42,209 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-08 17:51:42,209 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-08 17:51:42,211 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-08 17:51:42,212 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 05:51:42" (1/1) ... [2018-12-08 17:51:42,213 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61af8d13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:51:42, skipping insertion in model container [2018-12-08 17:51:42,213 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.12 05:51:42" (1/1) ... [2018-12-08 17:51:42,218 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-08 17:51:42,227 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-08 17:51:42,314 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 17:51:42,318 INFO L191 MainTranslator]: Completed pre-run [2018-12-08 17:51:42,329 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-08 17:51:42,337 INFO L195 MainTranslator]: Completed translation [2018-12-08 17:51:42,338 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:51:42 WrapperNode [2018-12-08 17:51:42,338 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-08 17:51:42,338 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-08 17:51:42,338 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-08 17:51:42,339 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-08 17:51:42,344 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:51:42" (1/1) ... [2018-12-08 17:51:42,348 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:51:42" (1/1) ... [2018-12-08 17:51:42,352 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-08 17:51:42,352 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-08 17:51:42,352 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-08 17:51:42,352 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-08 17:51:42,358 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:51:42" (1/1) ... [2018-12-08 17:51:42,358 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:51:42" (1/1) ... [2018-12-08 17:51:42,359 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:51:42" (1/1) ... [2018-12-08 17:51:42,359 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:51:42" (1/1) ... [2018-12-08 17:51:42,364 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:51:42" (1/1) ... [2018-12-08 17:51:42,365 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:51:42" (1/1) ... [2018-12-08 17:51:42,366 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:51:42" (1/1) ... [2018-12-08 17:51:42,367 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-08 17:51:42,367 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-08 17:51:42,367 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-08 17:51:42,367 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-08 17:51:42,368 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:51:42" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3699f0c1-b152-4a7e-974b-3219ce0b50f0/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 17:51:42,427 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-08 17:51:42,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-08 17:51:42,427 INFO L130 BoogieDeclarations]: Found specification of procedure f [2018-12-08 17:51:42,427 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2018-12-08 17:51:42,427 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-08 17:51:42,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-08 17:51:42,427 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2018-12-08 17:51:42,428 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2018-12-08 17:51:42,428 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-08 17:51:42,428 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-08 17:51:47,962 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-08 17:51:47,962 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-12-08 17:51:47,962 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 05:51:47 BoogieIcfgContainer [2018-12-08 17:51:47,962 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-08 17:51:47,963 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-08 17:51:47,963 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-08 17:51:47,965 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-08 17:51:47,965 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.12 05:51:42" (1/3) ... [2018-12-08 17:51:47,965 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66cef637 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 05:51:47, skipping insertion in model container [2018-12-08 17:51:47,965 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.12 05:51:42" (2/3) ... [2018-12-08 17:51:47,965 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66cef637 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.12 05:51:47, skipping insertion in model container [2018-12-08 17:51:47,966 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 05:51:47" (3/3) ... [2018-12-08 17:51:47,966 INFO L112 eAbstractionObserver]: Analyzing ICFG newton_2_6_false-unreach-call_true-termination.i [2018-12-08 17:51:47,972 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-08 17:51:47,976 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-08 17:51:47,985 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-08 17:51:48,001 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-08 17:51:48,002 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-08 17:51:48,002 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-08 17:51:48,002 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-08 17:51:48,002 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-08 17:51:48,003 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-08 17:51:48,003 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-08 17:51:48,003 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-08 17:51:48,003 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-08 17:51:48,013 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2018-12-08 17:51:48,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-08 17:51:48,016 INFO L394 BasicCegarLoop]: Found error trace [2018-12-08 17:51:48,017 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 17:51:48,018 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-08 17:51:48,021 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-08 17:51:48,021 INFO L82 PathProgramCache]: Analyzing trace with hash 784971363, now seen corresponding path program 1 times [2018-12-08 17:51:48,024 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-08 17:51:48,024 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3699f0c1-b152-4a7e-974b-3219ce0b50f0/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 17:51:48,029 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-08 17:53:17,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 17:53:32,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-08 17:53:32,591 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-08 17:53:32,614 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.12 05:53:32 BoogieIcfgContainer [2018-12-08 17:53:32,614 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-08 17:53:32,614 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-08 17:53:32,614 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-08 17:53:32,614 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-08 17:53:32,615 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.12 05:51:47" (3/4) ... [2018-12-08 17:53:32,616 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-08 17:53:32,642 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_3699f0c1-b152-4a7e-974b-3219ce0b50f0/bin-2019/utaipan/witness.graphml [2018-12-08 17:53:32,642 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-08 17:53:32,643 INFO L168 Benchmark]: Toolchain (without parser) took 110434.31 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -124.6 MB). Peak memory consumption was 7.5 MB. Max. memory is 11.5 GB. [2018-12-08 17:53:32,643 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 17:53:32,644 INFO L168 Benchmark]: CACSL2BoogieTranslator took 128.88 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 17:53:32,644 INFO L168 Benchmark]: Boogie Procedure Inliner took 13.71 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 17:53:32,644 INFO L168 Benchmark]: Boogie Preprocessor took 14.82 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 17:53:32,644 INFO L168 Benchmark]: RCFGBuilder took 5595.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 927.3 MB in the beginning and 1.1 GB in the end (delta: -168.1 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. [2018-12-08 17:53:32,645 INFO L168 Benchmark]: TraceAbstraction took 104651.17 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: 26.1 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. [2018-12-08 17:53:32,645 INFO L168 Benchmark]: Witness Printer took 27.87 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 17:53:32,647 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 128.88 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 13.71 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 14.82 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 5595.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 927.3 MB in the beginning and 1.1 GB in the end (delta: -168.1 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 104651.17 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: 26.1 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. * Witness Printer took 27.87 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)=1.1731117963790894] [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)=1.1731117963790894, \result=0.923162043094635, x=1.1731117963790894] [L19] RET, EXPR f(IN) VAL [f(IN)=0.923162043094635, IN=1.1731117963790894] [L19] CALL, EXPR fp(IN) VAL [\old(x)=1.1731117963790894] [L11] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=1.1731117963790894, \result=0.39443695545196533, x=1.1731117963790894] [L19] RET, EXPR fp(IN) VAL [f(IN)=0.923162043094635, fp(IN)=0.39443695545196533, IN=1.1731117963790894] [L19] float x = IN - f(IN)/fp(IN); [L21] CALL, EXPR f(x) VAL [\old(x)=-1.1673434972763062] [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)=-1.1673434972763062, \result=-0.920872151851654, x=-1.1673434972763062] [L21] RET, EXPR f(x) VAL [f(x)=-0.920872151851654, IN=1.1731117963790894, x=-1.1673434972763062] [L21] CALL, EXPR fp(x) VAL [\old(x)=-1.1673434972763062] [L11] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=-1.1673434972763062, \result=0.3995409905910492, x=-1.1673434972763062] [L21] RET, EXPR fp(x) VAL [f(x)=-0.920872151851654, fp(x)=0.3995409905910492, IN=1.1731117963790894, x=-1.1673434972763062] [L21] x = x - f(x)/fp(x) [L27] COND TRUE !(x < 0.1) VAL [IN=1.1731117963790894, x=1.1374818086624146] [L28] __VERIFIER_error() VAL [IN=1.1731117963790894, x=1.1374818086624146] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 25 locations, 1 error locations. UNSAFE Result, 104.6s 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, 89.6s 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...