./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/floats-esbmc-regression/modf.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version da95e156 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 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis 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_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 527e040d46fd13f052781cd3bb4409f7548c45aa ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.1.24-da95e15 [2019-11-27 09:45:49,141 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 09:45:49,147 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 09:45:49,182 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 09:45:49,184 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 09:45:49,185 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 09:45:49,190 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 09:45:49,202 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 09:45:49,211 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 09:45:49,217 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 09:45:49,220 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 09:45:49,225 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 09:45:49,226 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 09:45:49,230 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 09:45:49,233 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 09:45:49,236 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 09:45:49,239 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 09:45:49,242 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 09:45:49,246 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 09:45:49,253 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 09:45:49,262 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 09:45:49,268 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 09:45:49,273 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 09:45:49,275 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 09:45:49,283 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 09:45:49,283 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 09:45:49,284 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 09:45:49,286 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 09:45:49,288 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 09:45:49,289 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 09:45:49,291 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 09:45:49,292 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 09:45:49,293 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 09:45:49,297 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 09:45:49,299 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 09:45:49,302 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 09:45:49,303 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 09:45:49,303 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 09:45:49,304 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 09:45:49,306 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 09:45:49,309 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 09:45:49,311 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-27 09:45:49,364 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 09:45:49,370 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 09:45:49,371 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 09:45:49,373 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 09:45:49,376 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 09:45:49,379 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 09:45:49,379 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 09:45:49,379 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-27 09:45:49,380 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 09:45:49,380 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 09:45:49,380 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-27 09:45:49,381 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 09:45:49,381 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-27 09:45:49,381 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 09:45:49,381 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-27 09:45:49,384 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 09:45:49,385 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-27 09:45:49,385 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 09:45:49,385 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 09:45:49,386 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 09:45:49,387 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 09:45:49,387 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 09:45:49,387 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 09:45:49,390 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 09:45:49,390 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-27 09:45:49,390 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-27 09:45:49,391 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-27 09:45:49,391 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-27 09:45:49,392 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 [2019-11-27 09:45:49,989 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 09:45:50,019 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 09:45:50,027 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 09:45:50,030 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 09:45:50,032 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 09:45:50,037 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-esbmc-regression/modf.i [2019-11-27 09:45:50,190 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5bb5b78af/1420795cd6e74c1b9ebab1d93a6f2db7/FLAGd856dfc62 [2019-11-27 09:45:51,379 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 09:45:51,380 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-esbmc-regression/modf.i [2019-11-27 09:45:51,414 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5bb5b78af/1420795cd6e74c1b9ebab1d93a6f2db7/FLAGd856dfc62 [2019-11-27 09:45:51,451 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5bb5b78af/1420795cd6e74c1b9ebab1d93a6f2db7 [2019-11-27 09:45:51,459 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 09:45:51,461 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-11-27 09:45:51,470 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 09:45:51,470 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 09:45:51,474 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 09:45:51,480 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 09:45:51" (1/1) ... [2019-11-27 09:45:51,486 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28674ab1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:45:51, skipping insertion in model container [2019-11-27 09:45:51,487 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 09:45:51" (1/1) ... [2019-11-27 09:45:51,506 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 09:45:51,606 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 09:45:52,688 ERROR L326 MainTranslator]: Unsupported Syntax: Unsupported function from math.h: modff [2019-11-27 09:45:52,694 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4d489975 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:45:52, skipping insertion in model container [2019-11-27 09:45:52,701 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 09:45:52,701 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2019-11-27 09:45:52,705 INFO L168 Benchmark]: Toolchain (without parser) took 1242.87 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 961.7 MB in the beginning and 996.1 MB in the end (delta: -34.4 MB). Peak memory consumption was 21.5 MB. Max. memory is 12.5 GB. [2019-11-27 09:45:52,706 INFO L168 Benchmark]: CDTParser took 0.45 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. [2019-11-27 09:45:52,710 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1231.39 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 961.7 MB in the beginning and 996.1 MB in the end (delta: -34.4 MB). Peak memory consumption was 21.5 MB. Max. memory is 12.5 GB. [2019-11-27 09:45:52,720 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.45 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 1231.39 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 961.7 MB in the beginning and 996.1 MB in the end (delta: -34.4 MB). Peak memory consumption was 21.5 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... ### Bit-precise run ### This is Ultimate 0.1.24-da95e15 [2019-11-27 09:45:56,608 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 09:45:56,614 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 09:45:56,647 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 09:45:56,648 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 09:45:56,650 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 09:45:56,660 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 09:45:56,672 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 09:45:56,680 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 09:45:56,684 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 09:45:56,687 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 09:45:56,691 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 09:45:56,694 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 09:45:56,697 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 09:45:56,701 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 09:45:56,703 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 09:45:56,706 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 09:45:56,709 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 09:45:56,712 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 09:45:56,720 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 09:45:56,728 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 09:45:56,737 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 09:45:56,743 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 09:45:56,749 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 09:45:56,761 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 09:45:56,762 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 09:45:56,762 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 09:45:56,764 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 09:45:56,767 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 09:45:56,769 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 09:45:56,772 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 09:45:56,773 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 09:45:56,775 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 09:45:56,779 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 09:45:56,782 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 09:45:56,784 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 09:45:56,788 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 09:45:56,788 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 09:45:56,788 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 09:45:56,790 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 09:45:56,794 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 09:45:56,797 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-27 09:45:56,848 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 09:45:56,855 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 09:45:56,856 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 09:45:56,861 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 09:45:56,861 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 09:45:56,863 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 09:45:56,863 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 09:45:56,863 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 09:45:56,864 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 09:45:56,864 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-27 09:45:56,866 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 09:45:56,866 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-27 09:45:56,866 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-27 09:45:56,867 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-27 09:45:56,867 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 09:45:56,869 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-27 09:45:56,872 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 09:45:56,872 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-27 09:45:56,872 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 09:45:56,873 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 09:45:56,873 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 09:45:56,873 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 09:45:56,874 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 09:45:56,874 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 09:45:56,875 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 09:45:56,877 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-27 09:45:56,877 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-27 09:45:56,877 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-27 09:45:56,878 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-27 09:45:56,878 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-27 09:45:56,879 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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 [2019-11-27 09:45:57,380 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 09:45:57,423 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 09:45:57,430 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 09:45:57,432 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 09:45:57,437 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 09:45:57,439 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-esbmc-regression/modf.i [2019-11-27 09:45:57,591 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a98cfa6c3/aa4bd55a5e85443d8124f97d2cf382d7/FLAG676f15a6f [2019-11-27 09:45:58,785 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 09:45:58,788 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-esbmc-regression/modf.i [2019-11-27 09:45:58,823 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a98cfa6c3/aa4bd55a5e85443d8124f97d2cf382d7/FLAG676f15a6f [2019-11-27 09:45:58,886 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a98cfa6c3/aa4bd55a5e85443d8124f97d2cf382d7 [2019-11-27 09:45:58,894 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 09:45:58,899 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2019-11-27 09:45:58,904 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 09:45:58,906 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 09:45:58,912 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 09:45:58,916 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 09:45:58" (1/1) ... [2019-11-27 09:45:58,924 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c10032a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:45:58, skipping insertion in model container [2019-11-27 09:45:58,925 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 09:45:58" (1/1) ... [2019-11-27 09:45:58,944 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 09:45:59,045 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 09:46:00,581 ERROR L326 MainTranslator]: Unsupported Syntax: Unsupported function from math.h: modff [2019-11-27 09:46:00,584 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2693e8db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 09:46:00, skipping insertion in model container [2019-11-27 09:46:00,586 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 09:46:00,587 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2019-11-27 09:46:00,593 INFO L168 Benchmark]: Toolchain (without parser) took 1689.50 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 967.4 MB in the beginning and 996.0 MB in the end (delta: -28.6 MB). Peak memory consumption was 21.6 MB. Max. memory is 12.5 GB. [2019-11-27 09:46:00,596 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 994.6 MB. There was no memory consumed. Max. memory is 12.5 GB. [2019-11-27 09:46:00,599 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1682.30 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 967.4 MB in the beginning and 996.0 MB in the end (delta: -28.6 MB). Peak memory consumption was 21.6 MB. Max. memory is 12.5 GB. [2019-11-27 09:46:00,605 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 994.6 MB. There was no memory consumed. Max. memory is 12.5 GB. * CACSL2BoogieTranslator took 1682.30 ms. Allocated memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 65.5 kB). Free memory was 967.4 MB in the beginning and 996.0 MB in the end (delta: -28.6 MB). Peak memory consumption was 21.6 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...