./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/floats-cdfpl/newton_3_7_false-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_9d7806ec-f61a-4ab6-8fe9-f54f9d090107/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_9d7806ec-f61a-4ab6-8fe9-f54f9d090107/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_9d7806ec-f61a-4ab6-8fe9-f54f9d090107/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_9d7806ec-f61a-4ab6-8fe9-f54f9d090107/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_3_7_false-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_9d7806ec-f61a-4ab6-8fe9-f54f9d090107/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_9d7806ec-f61a-4ab6-8fe9-f54f9d090107/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 1a235e961590504bf325ed48e961fbf72a0d83a1 ..................................................................................................................................................................................................................................................................................... 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_9d7806ec-f61a-4ab6-8fe9-f54f9d090107/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_9d7806ec-f61a-4ab6-8fe9-f54f9d090107/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_9d7806ec-f61a-4ab6-8fe9-f54f9d090107/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_9d7806ec-f61a-4ab6-8fe9-f54f9d090107/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_3_7_false-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_9d7806ec-f61a-4ab6-8fe9-f54f9d090107/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_9d7806ec-f61a-4ab6-8fe9-f54f9d090107/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 1a235e961590504bf325ed48e961fbf72a0d83a1 ........................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-10-26 19:23:10,133 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 19:23:10,136 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 19:23:10,145 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 19:23:10,145 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 19:23:10,146 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 19:23:10,146 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 19:23:10,148 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 19:23:10,149 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 19:23:10,150 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 19:23:10,151 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 19:23:10,151 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 19:23:10,152 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 19:23:10,153 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 19:23:10,153 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 19:23:10,154 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 19:23:10,155 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 19:23:10,157 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 19:23:10,158 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 19:23:10,160 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 19:23:10,161 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 19:23:10,161 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 19:23:10,163 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 19:23:10,164 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 19:23:10,164 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 19:23:10,165 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 19:23:10,165 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 19:23:10,166 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 19:23:10,166 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 19:23:10,168 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 19:23:10,168 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 19:23:10,169 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 19:23:10,169 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 19:23:10,169 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 19:23:10,169 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 19:23:10,170 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 19:23:10,170 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_9d7806ec-f61a-4ab6-8fe9-f54f9d090107/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-10-26 19:23:10,181 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 19:23:10,182 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 19:23:10,182 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 19:23:10,182 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-26 19:23:10,182 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-26 19:23:10,183 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-26 19:23:10,183 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-26 19:23:10,183 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-26 19:23:10,183 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-26 19:23:10,183 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-26 19:23:10,183 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-26 19:23:10,184 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 19:23:10,184 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-26 19:23:10,184 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-26 19:23:10,184 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-26 19:23:10,184 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 19:23:10,184 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 19:23:10,185 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 19:23:10,185 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 19:23:10,185 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-26 19:23:10,185 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 19:23:10,185 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 19:23:10,185 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 19:23:10,185 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 19:23:10,186 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 19:23:10,186 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 19:23:10,186 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 19:23:10,186 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 19:23:10,186 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 19:23:10,186 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 19:23:10,186 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-26 19:23:10,189 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 19:23:10,190 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-26 19:23:10,190 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-26 19:23:10,190 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_9d7806ec-f61a-4ab6-8fe9-f54f9d090107/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 -> 1a235e961590504bf325ed48e961fbf72a0d83a1 [2018-10-26 19:23:10,216 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 19:23:10,227 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 19:23:10,230 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 19:23:10,232 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 19:23:10,232 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 19:23:10,233 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_9d7806ec-f61a-4ab6-8fe9-f54f9d090107/bin-2019/utaipan/../../sv-benchmarks/c/floats-cdfpl/newton_3_7_false-unreach-call_true-termination.i [2018-10-26 19:23:10,285 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9d7806ec-f61a-4ab6-8fe9-f54f9d090107/bin-2019/utaipan/data/971a0b7ce/cd696e104c2e4568be8d9cdca5181400/FLAG8c79ecde1 [2018-10-26 19:23:10,654 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 19:23:10,655 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_9d7806ec-f61a-4ab6-8fe9-f54f9d090107/sv-benchmarks/c/floats-cdfpl/newton_3_7_false-unreach-call_true-termination.i [2018-10-26 19:23:10,660 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9d7806ec-f61a-4ab6-8fe9-f54f9d090107/bin-2019/utaipan/data/971a0b7ce/cd696e104c2e4568be8d9cdca5181400/FLAG8c79ecde1 [2018-10-26 19:23:10,670 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_9d7806ec-f61a-4ab6-8fe9-f54f9d090107/bin-2019/utaipan/data/971a0b7ce/cd696e104c2e4568be8d9cdca5181400 [2018-10-26 19:23:10,672 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 19:23:10,673 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-26 19:23:10,674 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 19:23:10,674 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 19:23:10,678 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 19:23:10,679 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 07:23:10" (1/1) ... [2018-10-26 19:23:10,681 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bf30996 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:23:10, skipping insertion in model container [2018-10-26 19:23:10,681 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 07:23:10" (1/1) ... [2018-10-26 19:23:10,690 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 19:23:10,707 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 19:23:10,829 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 19:23:10,833 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 19:23:10,849 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 19:23:10,861 INFO L193 MainTranslator]: Completed translation [2018-10-26 19:23:10,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:23:10 WrapperNode [2018-10-26 19:23:10,862 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 19:23:10,862 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-26 19:23:10,862 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-26 19:23:10,863 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-26 19:23:10,870 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:23:10" (1/1) ... [2018-10-26 19:23:10,877 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:23:10" (1/1) ... [2018-10-26 19:23:10,881 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-26 19:23:10,882 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 19:23:10,882 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 19:23:10,882 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 19:23:10,889 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:23:10" (1/1) ... [2018-10-26 19:23:10,889 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:23:10" (1/1) ... [2018-10-26 19:23:10,890 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:23:10" (1/1) ... [2018-10-26 19:23:10,890 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:23:10" (1/1) ... [2018-10-26 19:23:10,893 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:23:10" (1/1) ... [2018-10-26 19:23:10,894 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:23:10" (1/1) ... [2018-10-26 19:23:10,895 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:23:10" (1/1) ... [2018-10-26 19:23:10,896 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 19:23:10,897 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 19:23:10,897 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 19:23:10,897 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 19:23:10,898 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:23:10" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9d7806ec-f61a-4ab6-8fe9-f54f9d090107/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 19:23:10,989 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-26 19:23:10,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-26 19:23:10,989 INFO L130 BoogieDeclarations]: Found specification of procedure f [2018-10-26 19:23:10,989 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2018-10-26 19:23:10,989 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 19:23:10,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 19:23:10,990 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-26 19:23:10,990 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-26 19:23:10,990 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2018-10-26 19:23:10,990 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2018-10-26 19:23:11,400 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 19:23:11,400 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 07:23:11 BoogieIcfgContainer [2018-10-26 19:23:11,400 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 19:23:11,401 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 19:23:11,401 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 19:23:11,404 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 19:23:11,405 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 07:23:10" (1/3) ... [2018-10-26 19:23:11,405 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@aa83fb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 07:23:11, skipping insertion in model container [2018-10-26 19:23:11,405 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:23:10" (2/3) ... [2018-10-26 19:23:11,406 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@aa83fb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 07:23:11, skipping insertion in model container [2018-10-26 19:23:11,406 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 07:23:11" (3/3) ... [2018-10-26 19:23:11,407 INFO L112 eAbstractionObserver]: Analyzing ICFG newton_3_7_false-unreach-call_true-termination.i [2018-10-26 19:23:11,416 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 19:23:11,424 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-26 19:23:11,439 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-26 19:23:11,470 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 19:23:11,470 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 19:23:11,470 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 19:23:11,470 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 19:23:11,470 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 19:23:11,471 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 19:23:11,471 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 19:23:11,471 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 19:23:11,489 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2018-10-26 19:23:11,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-10-26 19:23:11,495 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 19:23:11,496 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 19:23:11,498 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 19:23:11,504 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 19:23:11,504 INFO L82 PathProgramCache]: Analyzing trace with hash 655682733, now seen corresponding path program 1 times [2018-10-26 19:23:11,507 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 19:23:11,554 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:23:11,554 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 19:23:11,555 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 19:23:11,555 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 19:23:11,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 19:23:11,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 19:23:11,623 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-10-26 19:23:11,652 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 07:23:11 BoogieIcfgContainer [2018-10-26 19:23:11,653 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-26 19:23:11,654 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-26 19:23:11,654 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-26 19:23:11,655 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-26 19:23:11,655 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 07:23:11" (3/4) ... [2018-10-26 19:23:11,662 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-10-26 19:23:11,662 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-26 19:23:11,663 INFO L168 Benchmark]: Toolchain (without parser) took 990.22 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.4 MB). Free memory was 959.7 MB in the beginning and 1.1 GB in the end (delta: -174.6 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 19:23:11,665 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 19:23:11,665 INFO L168 Benchmark]: CACSL2BoogieTranslator took 187.80 ms. Allocated memory is still 1.0 GB. Free memory was 959.7 MB in the beginning and 948.8 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. [2018-10-26 19:23:11,666 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.18 ms. Allocated memory is still 1.0 GB. Free memory is still 948.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 19:23:11,666 INFO L168 Benchmark]: Boogie Preprocessor took 14.87 ms. Allocated memory is still 1.0 GB. Free memory was 948.8 MB in the beginning and 946.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-10-26 19:23:11,669 INFO L168 Benchmark]: RCFGBuilder took 503.71 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.4 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -202.6 MB). Peak memory consumption was 22.6 MB. Max. memory is 11.5 GB. [2018-10-26 19:23:11,669 INFO L168 Benchmark]: TraceAbstraction took 252.70 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: 14.5 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. [2018-10-26 19:23:11,670 INFO L168 Benchmark]: Witness Printer took 8.12 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 19:23:11,673 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 187.80 ms. Allocated memory is still 1.0 GB. Free memory was 959.7 MB in the beginning and 948.8 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 19.18 ms. Allocated memory is still 1.0 GB. Free memory is still 948.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 14.87 ms. Allocated memory is still 1.0 GB. Free memory was 948.8 MB in the beginning and 946.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 503.71 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.4 MB). Free memory was 946.1 MB in the beginning and 1.1 GB in the end (delta: -202.6 MB). Peak memory consumption was 22.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 252.70 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: 14.5 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. * Witness Printer took 8.12 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 23. Possible FailurePath: [L16] float IN = __VERIFIER_nondet_float(); [L19] CALL, EXPR f(IN) VAL [\old(x)=8] [L6] RET return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=8, x=8] [L19] EXPR f(IN) VAL [f(IN)=5, IN=8] [L19] CALL, EXPR fp(IN) VAL [\old(x)=8] [L11] RET return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=8, x=8] [L19] EXPR fp(IN) VAL [f(IN)=5, fp(IN)=2, IN=8] [L19] float x = IN - f(IN)/fp(IN); [L21] CALL, EXPR f(x) VAL [\old(x)=3] [L6] RET return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=3, x=3] [L21] EXPR f(x) VAL [f(x)=4, IN=8, x=3] [L21] CALL, EXPR fp(x) VAL [\old(x)=3] [L11] RET return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=3, x=3] [L21] EXPR fp(x) VAL [f(x)=4, fp(x)=0, IN=8, x=3] [L21] x = x - f(x)/fp(x) [L23] CALL, EXPR f(x) VAL [\old(x)=6] [L6] RET return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=6, x=6] [L23] EXPR f(x) VAL [f(x)=1, IN=8, x=6] [L23] CALL, EXPR fp(x) VAL [\old(x)=6] [L11] RET return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=6, x=6] [L23] EXPR fp(x) VAL [f(x)=1, fp(x)=7, IN=8, x=6] [L23] x = x - f(x)/fp(x) [L27] COND TRUE !(x < 0.1) VAL [IN=8] [L28] __VERIFIER_error() VAL [IN=8] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 28 locations, 1 error locations. UNSAFE Result, 0.1s OverallTime, 1 OverallIterations, 3 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred 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, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-1dbac8b [2018-10-26 19:23:13,532 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 19:23:13,533 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 19:23:13,544 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 19:23:13,544 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 19:23:13,545 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 19:23:13,546 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 19:23:13,547 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 19:23:13,549 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 19:23:13,549 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 19:23:13,550 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 19:23:13,550 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 19:23:13,551 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 19:23:13,552 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 19:23:13,553 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 19:23:13,554 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 19:23:13,554 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 19:23:13,556 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 19:23:13,558 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 19:23:13,559 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 19:23:13,560 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 19:23:13,561 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 19:23:13,564 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 19:23:13,564 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 19:23:13,564 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 19:23:13,565 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 19:23:13,566 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 19:23:13,566 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 19:23:13,567 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 19:23:13,568 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 19:23:13,568 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 19:23:13,569 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 19:23:13,569 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 19:23:13,569 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 19:23:13,570 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 19:23:13,570 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 19:23:13,570 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_9d7806ec-f61a-4ab6-8fe9-f54f9d090107/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-10-26 19:23:13,583 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 19:23:13,583 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 19:23:13,584 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 19:23:13,584 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-26 19:23:13,584 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-26 19:23:13,584 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-26 19:23:13,585 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-26 19:23:13,585 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-26 19:23:13,585 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 19:23:13,585 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-26 19:23:13,586 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-26 19:23:13,586 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 19:23:13,586 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 19:23:13,586 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 19:23:13,586 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 19:23:13,586 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-10-26 19:23:13,586 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-10-26 19:23:13,588 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-26 19:23:13,588 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 19:23:13,588 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 19:23:13,589 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 19:23:13,589 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 19:23:13,589 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 19:23:13,589 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 19:23:13,589 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 19:23:13,589 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 19:23:13,590 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 19:23:13,590 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 19:23:13,590 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-10-26 19:23:13,590 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 19:23:13,590 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-10-26 19:23:13,590 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-10-26 19:23:13,590 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_9d7806ec-f61a-4ab6-8fe9-f54f9d090107/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 -> 1a235e961590504bf325ed48e961fbf72a0d83a1 [2018-10-26 19:23:13,626 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 19:23:13,640 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 19:23:13,642 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 19:23:13,644 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 19:23:13,645 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 19:23:13,645 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_9d7806ec-f61a-4ab6-8fe9-f54f9d090107/bin-2019/utaipan/../../sv-benchmarks/c/floats-cdfpl/newton_3_7_false-unreach-call_true-termination.i [2018-10-26 19:23:13,694 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9d7806ec-f61a-4ab6-8fe9-f54f9d090107/bin-2019/utaipan/data/9e03717d9/7478316d40a9401783a0a98666a7a107/FLAG8621a411a [2018-10-26 19:23:14,085 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 19:23:14,086 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_9d7806ec-f61a-4ab6-8fe9-f54f9d090107/sv-benchmarks/c/floats-cdfpl/newton_3_7_false-unreach-call_true-termination.i [2018-10-26 19:23:14,093 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9d7806ec-f61a-4ab6-8fe9-f54f9d090107/bin-2019/utaipan/data/9e03717d9/7478316d40a9401783a0a98666a7a107/FLAG8621a411a [2018-10-26 19:23:14,109 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_9d7806ec-f61a-4ab6-8fe9-f54f9d090107/bin-2019/utaipan/data/9e03717d9/7478316d40a9401783a0a98666a7a107 [2018-10-26 19:23:14,114 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 19:23:14,115 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-26 19:23:14,116 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 19:23:14,116 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 19:23:14,123 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 19:23:14,124 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 07:23:14" (1/1) ... [2018-10-26 19:23:14,126 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d088db4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:23:14, skipping insertion in model container [2018-10-26 19:23:14,126 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 07:23:14" (1/1) ... [2018-10-26 19:23:14,136 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 19:23:14,156 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 19:23:14,302 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 19:23:14,306 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 19:23:14,326 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 19:23:14,337 INFO L193 MainTranslator]: Completed translation [2018-10-26 19:23:14,337 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:23:14 WrapperNode [2018-10-26 19:23:14,338 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 19:23:14,338 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-26 19:23:14,338 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-26 19:23:14,339 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-26 19:23:14,347 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:23:14" (1/1) ... [2018-10-26 19:23:14,354 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:23:14" (1/1) ... [2018-10-26 19:23:14,359 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-26 19:23:14,359 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 19:23:14,359 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 19:23:14,360 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 19:23:14,367 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:23:14" (1/1) ... [2018-10-26 19:23:14,368 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:23:14" (1/1) ... [2018-10-26 19:23:14,369 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:23:14" (1/1) ... [2018-10-26 19:23:14,370 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:23:14" (1/1) ... [2018-10-26 19:23:14,374 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:23:14" (1/1) ... [2018-10-26 19:23:14,376 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:23:14" (1/1) ... [2018-10-26 19:23:14,377 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:23:14" (1/1) ... [2018-10-26 19:23:14,379 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 19:23:14,379 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 19:23:14,379 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 19:23:14,380 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 19:23:14,380 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:23:14" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9d7806ec-f61a-4ab6-8fe9-f54f9d090107/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 19:23:14,432 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-26 19:23:14,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-26 19:23:14,433 INFO L130 BoogieDeclarations]: Found specification of procedure f [2018-10-26 19:23:14,433 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2018-10-26 19:23:14,433 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 19:23:14,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 19:23:14,433 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-26 19:23:14,433 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-26 19:23:14,434 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2018-10-26 19:23:14,434 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2018-10-26 19:23:21,340 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 19:23:21,340 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 07:23:21 BoogieIcfgContainer [2018-10-26 19:23:21,340 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 19:23:21,341 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 19:23:21,342 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 19:23:21,344 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 19:23:21,344 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 07:23:14" (1/3) ... [2018-10-26 19:23:21,345 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dab20dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 07:23:21, skipping insertion in model container [2018-10-26 19:23:21,346 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 07:23:14" (2/3) ... [2018-10-26 19:23:21,346 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dab20dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 07:23:21, skipping insertion in model container [2018-10-26 19:23:21,346 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 07:23:21" (3/3) ... [2018-10-26 19:23:21,348 INFO L112 eAbstractionObserver]: Analyzing ICFG newton_3_7_false-unreach-call_true-termination.i [2018-10-26 19:23:21,361 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 19:23:21,368 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-26 19:23:21,383 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-26 19:23:21,410 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-26 19:23:21,411 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 19:23:21,411 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 19:23:21,411 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 19:23:21,411 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 19:23:21,412 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 19:23:21,412 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 19:23:21,412 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 19:23:21,412 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 19:23:21,428 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2018-10-26 19:23:21,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-10-26 19:23:21,434 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 19:23:21,435 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 19:23:21,437 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 19:23:21,442 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 19:23:21,442 INFO L82 PathProgramCache]: Analyzing trace with hash 655682733, now seen corresponding path program 1 times [2018-10-26 19:23:21,447 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-26 19:23:21,447 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9d7806ec-f61a-4ab6-8fe9-f54f9d090107/bin-2019/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2018-10-26 19:23:21,457 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-10-26 19:25:48,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 19:26:05,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-26 19:26:05,707 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-10-26 19:26:05,745 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 07:26:05 BoogieIcfgContainer [2018-10-26 19:26:05,745 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-26 19:26:05,745 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-26 19:26:05,746 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-26 19:26:05,746 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-26 19:26:05,746 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 07:23:21" (3/4) ... [2018-10-26 19:26:05,748 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-10-26 19:26:05,791 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_9d7806ec-f61a-4ab6-8fe9-f54f9d090107/bin-2019/utaipan/witness.graphml [2018-10-26 19:26:05,791 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-26 19:26:05,792 INFO L168 Benchmark]: Toolchain (without parser) took 171677.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 951.9 MB in the beginning and 1.1 GB in the end (delta: -138.8 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. [2018-10-26 19:26:05,793 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 19:26:05,793 INFO L168 Benchmark]: CACSL2BoogieTranslator took 222.22 ms. Allocated memory is still 1.0 GB. Free memory was 951.9 MB in the beginning and 941.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-10-26 19:26:05,794 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.78 ms. Allocated memory is still 1.0 GB. Free memory was 941.1 MB in the beginning and 935.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-10-26 19:26:05,794 INFO L168 Benchmark]: Boogie Preprocessor took 19.83 ms. Allocated memory is still 1.0 GB. Free memory is still 935.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 19:26:05,794 INFO L168 Benchmark]: RCFGBuilder took 6961.25 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 935.8 MB in the beginning and 1.1 GB in the end (delta: -180.1 MB). Peak memory consumption was 21.8 MB. Max. memory is 11.5 GB. [2018-10-26 19:26:05,795 INFO L168 Benchmark]: TraceAbstraction took 164403.64 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: 25.1 MB). Peak memory consumption was 25.1 MB. Max. memory is 11.5 GB. [2018-10-26 19:26:05,795 INFO L168 Benchmark]: Witness Printer took 45.47 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 19:26:05,798 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 222.22 ms. Allocated memory is still 1.0 GB. Free memory was 951.9 MB in the beginning and 941.1 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 20.78 ms. Allocated memory is still 1.0 GB. Free memory was 941.1 MB in the beginning and 935.8 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 19.83 ms. Allocated memory is still 1.0 GB. Free memory is still 935.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 6961.25 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.5 MB). Free memory was 935.8 MB in the beginning and 1.1 GB in the end (delta: -180.1 MB). Peak memory consumption was 21.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 164403.64 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: 25.1 MB). Peak memory consumption was 25.1 MB. Max. memory is 11.5 GB. * Witness Printer took 45.47 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)=-1.389472484588623] [L6] RET return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=-1.389472484588623, \result=-0.9875213503837585, x=-1.389472484588623] [L19] EXPR f(IN) VAL [f(IN)=-0.9875213503837585, IN=-1.389472484588623] [L19] CALL, EXPR fp(IN) VAL [\old(x)=-1.389472484588623] [L11] RET return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=-1.389472484588623, \result=0.1999838650226593, x=-1.389472484588623] [L19] EXPR fp(IN) VAL [f(IN)=-0.9875213503837585, fp(IN)=0.1999838650226593, IN=-1.389472484588623] [L19] float x = IN - f(IN)/fp(IN); [L21] CALL, EXPR f(x) VAL [\old(x)=3.548532485961914] [L6] RET return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=3.548532485961914, \result=2.195866584777832, x=3.548532485961914] [L21] EXPR f(x) VAL [f(x)=2.195866584777832, IN=-1.389472484588623, x=3.548532485961914] [L21] CALL, EXPR fp(x) VAL [\old(x)=3.548532485961914] [L11] RET return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=3.548532485961914, \result=4.083713531494141, x=3.548532485961914] [L21] EXPR fp(x) VAL [f(x)=2.195866584777832, fp(x)=4.083713531494141, IN=-1.389472484588623, x=3.548532485961914] [L21] x = x - f(x)/fp(x) [L23] CALL, EXPR f(x) VAL [\old(x)=3.010819435119629] [L6] RET return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=3.010819435119629, \result=0.9687384366989136, x=3.010819435119629] [L23] EXPR f(x) VAL [f(x)=0.9687384366989136, IN=-1.389472484588623, x=3.010819435119629] [L23] CALL, EXPR fp(x) VAL [\old(x)=3.010819435119629] [L11] RET return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=3.010819435119629, \result=0.9260423183441162, x=3.010819435119629] [L23] EXPR fp(x) VAL [f(x)=0.9687384366989136, fp(x)=0.9260423183441162, IN=-1.389472484588623, x=3.010819435119629] [L23] x = x - f(x)/fp(x) [L27] COND TRUE !(x < 0.1) VAL [IN=-1.389472484588623, x=1.964713454246521] [L28] __VERIFIER_error() VAL [IN=-1.389472484588623, x=1.964713454246521] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 28 locations, 1 error locations. UNSAFE Result, 164.3s OverallTime, 1 OverallIterations, 3 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred 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, 147.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 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...