./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 cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_2b2f7691-58cc-4e0e-b600-7597426bd7db/bin/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_2b2f7691-58cc-4e0e-b600-7597426bd7db/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_2b2f7691-58cc-4e0e-b600-7597426bd7db/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_2b2f7691-58cc-4e0e-b600-7597426bd7db/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/floats-esbmc-regression/modf.i -s /tmp/vcloud-vcloud-master/worker/working_dir_2b2f7691-58cc-4e0e-b600-7597426bd7db/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_2b2f7691-58cc-4e0e-b600-7597426bd7db/bin/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 0.1.24-cad4683 [2019-10-22 10:14:37,354 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 10:14:37,356 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 10:14:37,367 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 10:14:37,367 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 10:14:37,368 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 10:14:37,369 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 10:14:37,371 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 10:14:37,373 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 10:14:37,373 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 10:14:37,374 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 10:14:37,375 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 10:14:37,375 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 10:14:37,376 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 10:14:37,376 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 10:14:37,377 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 10:14:37,378 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 10:14:37,379 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 10:14:37,380 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 10:14:37,382 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 10:14:37,383 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 10:14:37,384 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 10:14:37,385 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 10:14:37,386 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 10:14:37,388 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 10:14:37,388 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 10:14:37,388 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 10:14:37,389 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 10:14:37,390 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 10:14:37,390 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 10:14:37,391 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 10:14:37,391 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 10:14:37,392 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 10:14:37,393 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 10:14:37,394 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 10:14:37,394 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 10:14:37,394 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 10:14:37,395 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 10:14:37,395 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 10:14:37,396 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 10:14:37,396 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 10:14:37,397 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_2b2f7691-58cc-4e0e-b600-7597426bd7db/bin/ukojak/config/svcomp-Reach-32bit-Kojak_Default.epf [2019-10-22 10:14:37,408 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 10:14:37,409 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 10:14:37,409 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 10:14:37,410 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2019-10-22 10:14:37,410 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 10:14:37,410 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 10:14:37,411 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 10:14:37,411 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 10:14:37,411 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 10:14:37,411 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 10:14:37,411 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 10:14:37,411 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 10:14:37,412 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 10:14:37,412 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 10:14:37,412 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 10:14:37,412 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 10:14:37,412 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 10:14:37,412 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 10:14:37,412 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2019-10-22 10:14:37,413 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2019-10-22 10:14:37,413 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 10:14:37,413 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 10:14:37,413 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-10-22 10:14:37,414 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 10:14:37,414 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 10:14:37,414 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 10:14:37,414 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2019-10-22 10:14:37,414 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 10:14:37,415 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 10:14:37,415 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 -> /tmp/vcloud-vcloud-master/worker/working_dir_2b2f7691-58cc-4e0e-b600-7597426bd7db/bin/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 [2019-10-22 10:14:37,438 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 10:14:37,448 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 10:14:37,450 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 10:14:37,452 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 10:14:37,452 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 10:14:37,453 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_2b2f7691-58cc-4e0e-b600-7597426bd7db/bin/ukojak/../../sv-benchmarks/c/floats-esbmc-regression/modf.i [2019-10-22 10:14:37,496 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2b2f7691-58cc-4e0e-b600-7597426bd7db/bin/ukojak/data/5373ee0bb/611531c86bdc45fabf3fb78d6fd216fb/FLAGd931a7cc5 [2019-10-22 10:14:38,004 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 10:14:38,008 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_2b2f7691-58cc-4e0e-b600-7597426bd7db/sv-benchmarks/c/floats-esbmc-regression/modf.i [2019-10-22 10:14:38,023 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_2b2f7691-58cc-4e0e-b600-7597426bd7db/bin/ukojak/data/5373ee0bb/611531c86bdc45fabf3fb78d6fd216fb/FLAGd931a7cc5 [2019-10-22 10:14:38,298 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_2b2f7691-58cc-4e0e-b600-7597426bd7db/bin/ukojak/data/5373ee0bb/611531c86bdc45fabf3fb78d6fd216fb [2019-10-22 10:14:38,300 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 10:14:38,301 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 10:14:38,302 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 10:14:38,302 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 10:14:38,305 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 10:14:38,306 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 10:14:38" (1/1) ... [2019-10-22 10:14:38,308 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3dc5229d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:14:38, skipping insertion in model container [2019-10-22 10:14:38,309 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 10:14:38" (1/1) ... [2019-10-22 10:14:38,315 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 10:14:38,355 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 10:14:38,841 ERROR L309 MainTranslator]: Unsupported Syntax: Unsupported function from math.h: modff [2019-10-22 10:14:38,842 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@87a8b28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:14:38, skipping insertion in model container [2019-10-22 10:14:38,842 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 10:14:38,843 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2019-10-22 10:14:38,845 INFO L168 Benchmark]: Toolchain (without parser) took 542.54 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 939.1 MB in the beginning and 1.1 GB in the end (delta: -194.2 MB). Peak memory consumption was 22.3 MB. Max. memory is 11.5 GB. [2019-10-22 10:14:38,845 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 960.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 10:14:38,846 INFO L168 Benchmark]: CACSL2BoogieTranslator took 540.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 939.1 MB in the beginning and 1.1 GB in the end (delta: -194.2 MB). Peak memory consumption was 22.3 MB. Max. memory is 11.5 GB. [2019-10-22 10:14:38,847 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 960.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 540.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 939.1 MB in the beginning and 1.1 GB in the end (delta: -194.2 MB). Peak memory consumption was 22.3 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...