./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/floats-cdfpl/newton_2_8_false-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 91b1670e Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/floats-cdfpl/newton_2_8_false-unreach-call_true-termination.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2d89a0564bbb0fd26a33f9c676f8f302637a0505 ......................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/floats-cdfpl/newton_2_8_false-unreach-call_true-termination.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2d89a0564bbb0fd26a33f9c676f8f302637a0505 ............................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.24-91b1670 [2018-11-28 17:36:00,102 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 17:36:00,106 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 17:36:00,123 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 17:36:00,125 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 17:36:00,126 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 17:36:00,129 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 17:36:00,132 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 17:36:00,134 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 17:36:00,136 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 17:36:00,139 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 17:36:00,140 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 17:36:00,141 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 17:36:00,144 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 17:36:00,150 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 17:36:00,152 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 17:36:00,154 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 17:36:00,159 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 17:36:00,161 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 17:36:00,165 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 17:36:00,166 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 17:36:00,167 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 17:36:00,172 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 17:36:00,174 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 17:36:00,175 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 17:36:00,175 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 17:36:00,177 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 17:36:00,177 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 17:36:00,181 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 17:36:00,182 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 17:36:00,182 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 17:36:00,183 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 17:36:00,183 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 17:36:00,183 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 17:36:00,186 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 17:36:00,188 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 17:36:00,189 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 17:36:00,207 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 17:36:00,207 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 17:36:00,211 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 17:36:00,211 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 17:36:00,212 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 17:36:00,212 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 17:36:00,212 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 17:36:00,212 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 17:36:00,215 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 17:36:00,215 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 17:36:00,215 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 17:36:00,215 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 17:36:00,216 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 17:36:00,216 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 17:36:00,216 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 17:36:00,216 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 17:36:00,216 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 17:36:00,216 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 17:36:00,217 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 17:36:00,217 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 17:36:00,217 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 17:36:00,217 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 17:36:00,217 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 17:36:00,217 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 17:36:00,218 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 17:36:00,218 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 17:36:00,218 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 17:36:00,218 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 17:36:00,218 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 17:36:00,218 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 17:36:00,220 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d89a0564bbb0fd26a33f9c676f8f302637a0505 [2018-11-28 17:36:00,256 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 17:36:00,274 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 17:36:00,278 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 17:36:00,280 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 17:36:00,281 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 17:36:00,281 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/floats-cdfpl/newton_2_8_false-unreach-call_true-termination.i [2018-11-28 17:36:00,352 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78d441d94/e8ac983948604b1b8ffaa60d2d7c6b8a/FLAG4baa4f2b9 [2018-11-28 17:36:00,812 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 17:36:00,814 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/floats-cdfpl/newton_2_8_false-unreach-call_true-termination.i [2018-11-28 17:36:00,823 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78d441d94/e8ac983948604b1b8ffaa60d2d7c6b8a/FLAG4baa4f2b9 [2018-11-28 17:36:01,150 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78d441d94/e8ac983948604b1b8ffaa60d2d7c6b8a [2018-11-28 17:36:01,154 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 17:36:01,156 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 17:36:01,157 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 17:36:01,157 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 17:36:01,161 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 17:36:01,162 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:36:01" (1/1) ... [2018-11-28 17:36:01,165 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a898d5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:36:01, skipping insertion in model container [2018-11-28 17:36:01,165 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:36:01" (1/1) ... [2018-11-28 17:36:01,172 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 17:36:01,190 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 17:36:01,377 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 17:36:01,382 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 17:36:01,406 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 17:36:01,422 INFO L195 MainTranslator]: Completed translation [2018-11-28 17:36:01,423 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:36:01 WrapperNode [2018-11-28 17:36:01,423 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 17:36:01,424 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 17:36:01,424 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 17:36:01,424 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 17:36:01,434 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:36:01" (1/1) ... [2018-11-28 17:36:01,439 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:36:01" (1/1) ... [2018-11-28 17:36:01,445 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 17:36:01,446 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 17:36:01,446 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 17:36:01,446 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 17:36:01,455 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:36:01" (1/1) ... [2018-11-28 17:36:01,456 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:36:01" (1/1) ... [2018-11-28 17:36:01,457 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:36:01" (1/1) ... [2018-11-28 17:36:01,457 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:36:01" (1/1) ... [2018-11-28 17:36:01,463 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:36:01" (1/1) ... [2018-11-28 17:36:01,465 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:36:01" (1/1) ... [2018-11-28 17:36:01,467 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:36:01" (1/1) ... [2018-11-28 17:36:01,469 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 17:36:01,469 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 17:36:01,469 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 17:36:01,470 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 17:36:01,470 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:36:01" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 17:36:01,603 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 17:36:01,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 17:36:01,603 INFO L130 BoogieDeclarations]: Found specification of procedure f [2018-11-28 17:36:01,603 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2018-11-28 17:36:01,604 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 17:36:01,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 17:36:01,604 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2018-11-28 17:36:01,604 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2018-11-28 17:36:01,604 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 17:36:01,604 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 17:36:01,876 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 17:36:01,876 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-28 17:36:01,877 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:36:01 BoogieIcfgContainer [2018-11-28 17:36:01,877 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 17:36:01,878 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 17:36:01,879 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 17:36:01,891 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 17:36:01,893 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:36:01" (1/3) ... [2018-11-28 17:36:01,894 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58f971d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:36:01, skipping insertion in model container [2018-11-28 17:36:01,894 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:36:01" (2/3) ... [2018-11-28 17:36:01,895 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58f971d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:36:01, skipping insertion in model container [2018-11-28 17:36:01,898 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:36:01" (3/3) ... [2018-11-28 17:36:01,902 INFO L112 eAbstractionObserver]: Analyzing ICFG newton_2_8_false-unreach-call_true-termination.i [2018-11-28 17:36:01,914 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 17:36:01,926 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 17:36:01,956 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 17:36:01,988 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 17:36:01,989 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 17:36:01,989 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 17:36:01,990 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 17:36:01,990 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 17:36:01,990 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 17:36:01,990 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 17:36:01,990 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 17:36:01,990 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 17:36:02,010 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2018-11-28 17:36:02,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-28 17:36:02,020 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:36:02,021 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] [2018-11-28 17:36:02,026 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:36:02,032 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:36:02,032 INFO L82 PathProgramCache]: Analyzing trace with hash 784971363, now seen corresponding path program 1 times [2018-11-28 17:36:02,034 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 17:36:02,034 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 17:36:02,079 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 17:36:02,079 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:36:02,079 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 17:36:02,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 17:36:02,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 17:36:02,168 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 17:36:02,197 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 05:36:02 BoogieIcfgContainer [2018-11-28 17:36:02,197 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 17:36:02,198 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 17:36:02,198 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 17:36:02,198 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 17:36:02,199 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:36:01" (3/4) ... [2018-11-28 17:36:02,202 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 17:36:02,202 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 17:36:02,203 INFO L168 Benchmark]: Toolchain (without parser) took 1048.54 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -140.5 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:36:02,205 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:36:02,206 INFO L168 Benchmark]: CACSL2BoogieTranslator took 266.62 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 MB in the beginning and 940.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 17:36:02,207 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.46 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:36:02,208 INFO L168 Benchmark]: Boogie Preprocessor took 23.27 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:36:02,209 INFO L168 Benchmark]: RCFGBuilder took 407.89 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -166.4 MB). Peak memory consumption was 25.0 MB. Max. memory is 11.5 GB. [2018-11-28 17:36:02,210 INFO L168 Benchmark]: TraceAbstraction took 318.79 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: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 11.5 GB. [2018-11-28 17:36:02,211 INFO L168 Benchmark]: Witness Printer took 4.76 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. [2018-11-28 17:36:02,217 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 266.62 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 MB in the beginning and 940.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 21.46 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 23.27 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 407.89 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -166.4 MB). Peak memory consumption was 25.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 318.79 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: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 11.5 GB. * Witness Printer took 4.76 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 28]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 17, overapproximation of someBinaryDOUBLEComparisonOperation at line 27, overapproximation of someBinaryArithmeticFLOAToperation at line 21. Possible FailurePath: [L16] float IN = __VERIFIER_nondet_float(); [L19] CALL, EXPR f(IN) VAL [\old(x)=5] [L6] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=5, x=5] [L19] RET, EXPR f(IN) VAL [f(IN)=4, IN=5] [L19] CALL, EXPR fp(IN) VAL [\old(x)=5] [L11] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=5, x=5] [L19] RET, EXPR fp(IN) VAL [f(IN)=4, fp(IN)=1, IN=5] [L19] float x = IN - f(IN)/fp(IN); [L21] CALL, EXPR f(x) VAL [\old(x)=2] [L6] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=2, x=2] [L21] RET, EXPR f(x) VAL [f(x)=3, IN=5, x=2] [L21] CALL, EXPR fp(x) VAL [\old(x)=2] [L11] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=2, x=2] [L21] RET, EXPR fp(x) VAL [f(x)=3, fp(x)=0, IN=5, x=2] [L21] x = x - f(x)/fp(x) [L27] COND TRUE !(x < 0.1) VAL [IN=5] [L28] __VERIFIER_error() VAL [IN=5] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 25 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 1 OverallIterations, 2 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-91b1670 [2018-11-28 17:36:04,649 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 17:36:04,652 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 17:36:04,669 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 17:36:04,669 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 17:36:04,673 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 17:36:04,674 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 17:36:04,676 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 17:36:04,679 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 17:36:04,680 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 17:36:04,683 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 17:36:04,683 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 17:36:04,685 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 17:36:04,691 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 17:36:04,692 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 17:36:04,693 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 17:36:04,697 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 17:36:04,698 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 17:36:04,703 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 17:36:04,705 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 17:36:04,709 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 17:36:04,711 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 17:36:04,715 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 17:36:04,715 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 17:36:04,715 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 17:36:04,716 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 17:36:04,717 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 17:36:04,720 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 17:36:04,721 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 17:36:04,722 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 17:36:04,722 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 17:36:04,725 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 17:36:04,725 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 17:36:04,725 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 17:36:04,726 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 17:36:04,726 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 17:36:04,727 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-28 17:36:04,744 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 17:36:04,745 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 17:36:04,745 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 17:36:04,746 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 17:36:04,747 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 17:36:04,748 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 17:36:04,748 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 17:36:04,749 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 17:36:04,749 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 17:36:04,749 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 17:36:04,749 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 17:36:04,749 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 17:36:04,750 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 17:36:04,750 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 17:36:04,750 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-28 17:36:04,750 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-28 17:36:04,750 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 17:36:04,750 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 17:36:04,753 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 17:36:04,754 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 17:36:04,754 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 17:36:04,754 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 17:36:04,755 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 17:36:04,755 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 17:36:04,755 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 17:36:04,755 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 17:36:04,755 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 17:36:04,756 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 17:36:04,756 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-28 17:36:04,756 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 17:36:04,757 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-11-28 17:36:04,757 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-28 17:36:04,757 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2d89a0564bbb0fd26a33f9c676f8f302637a0505 [2018-11-28 17:36:04,815 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 17:36:04,828 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 17:36:04,832 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 17:36:04,833 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 17:36:04,834 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 17:36:04,835 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/floats-cdfpl/newton_2_8_false-unreach-call_true-termination.i [2018-11-28 17:36:04,894 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76ac8972e/3647a7fdc23b4ddaa7871d33d6cb0dc2/FLAGdbdf59e98 [2018-11-28 17:36:05,341 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 17:36:05,342 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/floats-cdfpl/newton_2_8_false-unreach-call_true-termination.i [2018-11-28 17:36:05,351 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76ac8972e/3647a7fdc23b4ddaa7871d33d6cb0dc2/FLAGdbdf59e98 [2018-11-28 17:36:05,712 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76ac8972e/3647a7fdc23b4ddaa7871d33d6cb0dc2 [2018-11-28 17:36:05,716 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 17:36:05,717 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 17:36:05,719 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 17:36:05,719 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 17:36:05,724 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 17:36:05,726 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:36:05" (1/1) ... [2018-11-28 17:36:05,730 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f6e28e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:36:05, skipping insertion in model container [2018-11-28 17:36:05,731 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:36:05" (1/1) ... [2018-11-28 17:36:05,738 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 17:36:05,757 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 17:36:05,954 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 17:36:05,961 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 17:36:05,987 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 17:36:06,006 INFO L195 MainTranslator]: Completed translation [2018-11-28 17:36:06,007 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:36:06 WrapperNode [2018-11-28 17:36:06,007 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 17:36:06,009 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 17:36:06,009 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 17:36:06,009 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 17:36:06,021 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:36:06" (1/1) ... [2018-11-28 17:36:06,031 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:36:06" (1/1) ... [2018-11-28 17:36:06,043 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 17:36:06,044 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 17:36:06,044 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 17:36:06,044 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 17:36:06,056 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:36:06" (1/1) ... [2018-11-28 17:36:06,057 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:36:06" (1/1) ... [2018-11-28 17:36:06,061 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:36:06" (1/1) ... [2018-11-28 17:36:06,067 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:36:06" (1/1) ... [2018-11-28 17:36:06,089 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:36:06" (1/1) ... [2018-11-28 17:36:06,091 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:36:06" (1/1) ... [2018-11-28 17:36:06,095 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:36:06" (1/1) ... [2018-11-28 17:36:06,107 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 17:36:06,107 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 17:36:06,108 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 17:36:06,108 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 17:36:06,109 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:36:06" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 17:36:06,304 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 17:36:06,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 17:36:06,305 INFO L130 BoogieDeclarations]: Found specification of procedure f [2018-11-28 17:36:06,305 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2018-11-28 17:36:06,306 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 17:36:06,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 17:36:06,306 INFO L130 BoogieDeclarations]: Found specification of procedure fp [2018-11-28 17:36:06,306 INFO L138 BoogieDeclarations]: Found implementation of procedure fp [2018-11-28 17:36:06,306 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 17:36:06,306 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 17:36:12,786 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 17:36:12,787 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-28 17:36:12,787 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:36:12 BoogieIcfgContainer [2018-11-28 17:36:12,787 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 17:36:12,789 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 17:36:12,789 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 17:36:12,793 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 17:36:12,793 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:36:05" (1/3) ... [2018-11-28 17:36:12,794 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@394d97b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:36:12, skipping insertion in model container [2018-11-28 17:36:12,794 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:36:06" (2/3) ... [2018-11-28 17:36:12,795 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@394d97b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:36:12, skipping insertion in model container [2018-11-28 17:36:12,795 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:36:12" (3/3) ... [2018-11-28 17:36:12,798 INFO L112 eAbstractionObserver]: Analyzing ICFG newton_2_8_false-unreach-call_true-termination.i [2018-11-28 17:36:12,807 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 17:36:12,816 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 17:36:12,835 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 17:36:12,871 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 17:36:12,872 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 17:36:12,872 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 17:36:12,872 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 17:36:12,873 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 17:36:12,873 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 17:36:12,873 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 17:36:12,874 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 17:36:12,874 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 17:36:12,895 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2018-11-28 17:36:12,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-28 17:36:12,903 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:36:12,905 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] [2018-11-28 17:36:12,907 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:36:12,914 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:36:12,914 INFO L82 PathProgramCache]: Analyzing trace with hash 784971363, now seen corresponding path program 1 times [2018-11-28 17:36:12,920 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 17:36:12,921 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2018-11-28 17:36:12,935 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-11-28 17:36:20,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 17:36:34,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 17:36:35,076 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 17:36:35,119 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 05:36:35 BoogieIcfgContainer [2018-11-28 17:36:35,119 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 17:36:35,120 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 17:36:35,120 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 17:36:35,121 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 17:36:35,121 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:36:12" (3/4) ... [2018-11-28 17:36:35,125 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-28 17:36:35,187 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 17:36:35,187 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 17:36:35,189 INFO L168 Benchmark]: Toolchain (without parser) took 29472.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 951.3 MB in the beginning and 1.1 GB in the end (delta: -136.6 MB). Peak memory consumption was 239.6 kB. Max. memory is 11.5 GB. [2018-11-28 17:36:35,191 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:36:35,191 INFO L168 Benchmark]: CACSL2BoogieTranslator took 289.63 ms. Allocated memory is still 1.0 GB. Free memory was 951.3 MB in the beginning and 940.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 17:36:35,192 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.42 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:36:35,192 INFO L168 Benchmark]: Boogie Preprocessor took 63.54 ms. Allocated memory is still 1.0 GB. Free memory was 940.6 MB in the beginning and 935.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-28 17:36:35,194 INFO L168 Benchmark]: RCFGBuilder took 6679.83 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 935.2 MB in the beginning and 1.1 GB in the end (delta: -171.6 MB). Peak memory consumption was 19.8 MB. Max. memory is 11.5 GB. [2018-11-28 17:36:35,195 INFO L168 Benchmark]: TraceAbstraction took 22331.01 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 11.5 GB. [2018-11-28 17:36:35,196 INFO L168 Benchmark]: Witness Printer took 67.15 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. [2018-11-28 17:36:35,201 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 289.63 ms. Allocated memory is still 1.0 GB. Free memory was 951.3 MB in the beginning and 940.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 34.42 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 63.54 ms. Allocated memory is still 1.0 GB. Free memory was 940.6 MB in the beginning and 935.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 6679.83 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 935.2 MB in the beginning and 1.1 GB in the end (delta: -171.6 MB). Peak memory consumption was 19.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 22331.01 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 11.5 GB. * Witness Printer took 67.15 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 28]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L16] float IN = __VERIFIER_nondet_float(); [L19] CALL, EXPR f(IN) VAL [\old(x)=-1.260115623474121] [L6] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=-1.260115623474121, \result=-0.9541059732437134, x=-1.260115623474121] [L19] RET, EXPR f(IN) VAL [f(IN)=-0.9541059732437134, IN=-1.260115623474121] [L19] CALL, EXPR fp(IN) VAL [\old(x)=-1.260115623474121] [L11] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=-1.260115623474121, \result=0.31667330861091614, x=-1.260115623474121] [L19] RET, EXPR fp(IN) VAL [f(IN)=-0.9541059732437134, fp(IN)=0.31667330861091614, IN=-1.260115623474121] [L19] float x = IN - f(IN)/fp(IN); [L21] CALL, EXPR f(x) VAL [\old(x)=1.7527873516082764] [L6] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=1.7527873516082764, \result=1.0032366514205933, x=1.7527873516082764] [L21] RET, EXPR f(x) VAL [f(x)=1.0032366514205933, IN=-1.260115623474121, x=1.7527873516082764] [L21] CALL, EXPR fp(x) VAL [\old(x)=1.7527873516082764] [L11] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=1.7527873516082764, \result=-0.10257260501384735, x=1.7527873516082764] [L21] RET, EXPR fp(x) VAL [f(x)=1.0032366514205933, fp(x)=-0.10257260501384735, IN=-1.260115623474121, x=1.7527873516082764] [L21] x = x - f(x)/fp(x) [L27] COND TRUE !(x < 0.1) VAL [IN=-1.260115623474121, x=11.533534049987793] [L28] __VERIFIER_error() VAL [IN=-1.260115623474121, x=11.533534049987793] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 25 locations, 1 error locations. UNSAFE Result, 22.2s OverallTime, 1 OverallIterations, 2 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 7.6s 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...