./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/floats-esbmc-regression/modf_true-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_6172e279-caed-4b43-9322-1ae972d365f6/bin-2019/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_6172e279-caed-4b43-9322-1ae972d365f6/bin-2019/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_6172e279-caed-4b43-9322-1ae972d365f6/bin-2019/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_6172e279-caed-4b43-9322-1ae972d365f6/bin-2019/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/floats-esbmc-regression/modf_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_6172e279-caed-4b43-9322-1ae972d365f6/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_6172e279-caed-4b43-9322-1ae972d365f6/bin-2019/ukojak --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 Kojak --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 0.1.23-5842f4b [2018-11-18 13:28:10,207 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 13:28:10,209 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 13:28:10,217 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 13:28:10,217 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 13:28:10,218 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 13:28:10,219 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 13:28:10,220 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 13:28:10,221 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 13:28:10,222 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 13:28:10,223 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 13:28:10,223 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 13:28:10,224 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 13:28:10,225 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 13:28:10,225 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 13:28:10,226 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 13:28:10,227 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 13:28:10,228 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 13:28:10,230 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 13:28:10,231 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 13:28:10,232 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 13:28:10,232 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 13:28:10,234 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 13:28:10,235 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 13:28:10,235 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 13:28:10,235 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 13:28:10,237 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 13:28:10,237 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 13:28:10,238 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 13:28:10,239 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 13:28:10,239 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 13:28:10,239 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 13:28:10,240 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 13:28:10,240 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 13:28:10,241 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 13:28:10,242 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 13:28:10,242 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_6172e279-caed-4b43-9322-1ae972d365f6/bin-2019/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2018-11-18 13:28:10,253 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 13:28:10,253 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 13:28:10,254 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 13:28:10,254 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 13:28:10,255 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 13:28:10,255 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 13:28:10,255 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 13:28:10,255 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 13:28:10,255 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 13:28:10,255 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 13:28:10,255 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 13:28:10,256 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 13:28:10,256 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 13:28:10,256 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 13:28:10,256 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 13:28:10,258 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 13:28:10,258 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 13:28:10,258 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 13:28:10,258 INFO L131 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2018-11-18 13:28:10,258 INFO L133 SettingsManager]: * Timeout in seconds=1000000 [2018-11-18 13:28:10,259 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 13:28:10,259 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 13:28:10,259 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2018-11-18 13:28:10,260 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 13:28:10,260 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 13:28:10,260 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 13:28:10,260 INFO L133 SettingsManager]: * Trace refinement strategy=PENGUIN [2018-11-18 13:28:10,260 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 13:28:10,260 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 13:28:10,260 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_6172e279-caed-4b43-9322-1ae972d365f6/bin-2019/ukojak 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 -> Kojak 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 [2018-11-18 13:28:10,288 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 13:28:10,298 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 13:28:10,301 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 13:28:10,302 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 13:28:10,302 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 13:28:10,303 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_6172e279-caed-4b43-9322-1ae972d365f6/bin-2019/ukojak/../../sv-benchmarks/c/floats-esbmc-regression/modf_true-unreach-call.i [2018-11-18 13:28:10,351 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6172e279-caed-4b43-9322-1ae972d365f6/bin-2019/ukojak/data/05d258f55/c1a17f57ce034b18b2efe8b33c5ceb4d/FLAGd55f5524c [2018-11-18 13:28:10,739 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 13:28:10,740 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_6172e279-caed-4b43-9322-1ae972d365f6/sv-benchmarks/c/floats-esbmc-regression/modf_true-unreach-call.i [2018-11-18 13:28:10,749 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_6172e279-caed-4b43-9322-1ae972d365f6/bin-2019/ukojak/data/05d258f55/c1a17f57ce034b18b2efe8b33c5ceb4d/FLAGd55f5524c [2018-11-18 13:28:10,761 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_6172e279-caed-4b43-9322-1ae972d365f6/bin-2019/ukojak/data/05d258f55/c1a17f57ce034b18b2efe8b33c5ceb4d [2018-11-18 13:28:10,763 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 13:28:10,764 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 13:28:10,765 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 13:28:10,765 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 13:28:10,767 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 13:28:10,768 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 01:28:10" (1/1) ... [2018-11-18 13:28:10,770 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4634de3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:28:10, skipping insertion in model container [2018-11-18 13:28:10,770 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 01:28:10" (1/1) ... [2018-11-18 13:28:10,776 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 13:28:10,810 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 13:28:11,163 ERROR L311 MainTranslator]: Unsupported Syntax: Unsupported function from math.h: modff [2018-11-18 13:28:11,163 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@77e6b015 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:28:11, skipping insertion in model container [2018-11-18 13:28:11,163 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 13:28:11,164 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2018-11-18 13:28:11,165 INFO L168 Benchmark]: Toolchain (without parser) took 401.33 ms. Allocated memory is still 1.0 GB. Free memory was 955.5 MB in the beginning and 936.7 MB in the end (delta: 18.8 MB). Peak memory consumption was 18.8 MB. Max. memory is 11.5 GB. [2018-11-18 13:28:11,166 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 13:28:11,166 INFO L168 Benchmark]: CACSL2BoogieTranslator took 399.18 ms. Allocated memory is still 1.0 GB. Free memory was 955.5 MB in the beginning and 936.7 MB in the end (delta: 18.8 MB). Peak memory consumption was 18.8 MB. Max. memory is 11.5 GB. [2018-11-18 13:28:11,168 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 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 399.18 ms. Allocated memory is still 1.0 GB. Free memory was 955.5 MB in the beginning and 936.7 MB in the end (delta: 18.8 MB). Peak memory consumption was 18.8 MB. Max. memory is 11.5 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...