./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/floats-esbmc-regression/modf.i --full-output --cacsl2boogietranslator.adapt.memory.model.on.pointer.casts.if.necessary true --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47b0bc17 Calling Ultimate with: /usr/bin/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 ../sv-benchmarks/c/floats-esbmc-regression/modf.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 527e040d46fd13f052781cd3bb4409f7548c45aa --cacsl2boogietranslator.adapt.memory.model.on.pointer.casts.if.necessary true ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.1.24-47b0bc1 [2019-11-20 22:44:53,062 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 22:44:53,066 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 22:44:53,090 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 22:44:53,092 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 22:44:53,094 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 22:44:53,098 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 22:44:53,109 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 22:44:53,115 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 22:44:53,120 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 22:44:53,122 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 22:44:53,125 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 22:44:53,127 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 22:44:53,129 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 22:44:53,132 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 22:44:53,134 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 22:44:53,136 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 22:44:53,137 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 22:44:53,138 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 22:44:53,144 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 22:44:53,152 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 22:44:53,158 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 22:44:53,159 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 22:44:53,163 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 22:44:53,166 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 22:44:53,168 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 22:44:53,168 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 22:44:53,173 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 22:44:53,173 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 22:44:53,174 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 22:44:53,174 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 22:44:53,175 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 22:44:53,176 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 22:44:53,177 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 22:44:53,181 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 22:44:53,181 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 22:44:53,182 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 22:44:53,185 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 22:44:53,185 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 22:44:53,186 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 22:44:53,187 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 22:44:53,188 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-20 22:44:53,219 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 22:44:53,221 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 22:44:53,223 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 22:44:53,223 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 22:44:53,223 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 22:44:53,226 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 22:44:53,226 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-20 22:44:53,226 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 22:44:53,226 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-20 22:44:53,227 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 22:44:53,228 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 22:44:53,228 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 22:44:53,228 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 22:44:53,228 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-20 22:44:53,229 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 22:44:53,229 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 22:44:53,229 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 22:44:53,229 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 22:44:53,229 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 22:44:53,231 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 22:44:53,231 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 22:44:53,231 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 22:44:53,231 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 22:44:53,231 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 22:44:53,233 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 22:44:53,233 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 22:44:53,233 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 22:44:53,233 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 22:44:53,233 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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 -> 527e040d46fd13f052781cd3bb4409f7548c45aa Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Adapt memory model on pointer casts if necessary -> true [2019-11-20 22:44:53,612 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 22:44:53,629 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 22:44:53,633 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 22:44:53,637 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 22:44:53,637 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 22:44:53,640 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-esbmc-regression/modf.i [2019-11-20 22:44:53,744 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/639bef9af/2c7fe5ded4174d49b64e7febe7f79250/FLAG7192d29e7 [2019-11-20 22:44:54,578 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 22:44:54,580 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-esbmc-regression/modf.i [2019-11-20 22:44:54,605 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/639bef9af/2c7fe5ded4174d49b64e7febe7f79250/FLAG7192d29e7 [2019-11-20 22:44:54,758 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/639bef9af/2c7fe5ded4174d49b64e7febe7f79250 [2019-11-20 22:44:54,763 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 22:44:54,768 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-11-20 22:44:54,769 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 22:44:54,772 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 22:44:54,779 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 22:44:54,780 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:44:54" (1/1) ... [2019-11-20 22:44:54,782 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c4ab06d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:44:54, skipping insertion in model container [2019-11-20 22:44:54,787 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:44:54" (1/1) ... [2019-11-20 22:44:54,798 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 22:44:54,865 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-20 22:44:55,611 ERROR L323 MainTranslator]: Unsupported Syntax: Unsupported function from math.h: modff [2019-11-20 22:44:55,615 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@36629409 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:44:55, skipping insertion in model container [2019-11-20 22:44:55,615 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 22:44:55,616 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2019-11-20 22:44:55,620 INFO L168 Benchmark]: Toolchain (without parser) took 849.41 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 963.1 MB in the beginning and 996.1 MB in the end (delta: -33.0 MB). Peak memory consumption was 22.9 MB. Max. memory is 12.5 GB. [2019-11-20 22:44:55,629 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 988.9 MB. There was no memory consumed. Max. memory is 12.5 GB. [2019-11-20 22:44:55,631 INFO L168 Benchmark]: CACSL2BoogieTranslator took 846.18 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 963.1 MB in the beginning and 996.1 MB in the end (delta: -33.0 MB). Peak memory consumption was 22.9 MB. Max. memory is 12.5 GB. [2019-11-20 22:44:55,637 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 988.9 MB. There was no memory consumed. Max. memory is 12.5 GB. * CACSL2BoogieTranslator took 846.18 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 963.1 MB in the beginning and 996.1 MB in the end (delta: -33.0 MB). Peak memory consumption was 22.9 MB. Max. memory is 12.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 874]: Unsupported Syntax Unsupported function from math.h: modff RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...