./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 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0dc2cdc-b496-40ae-a64f-1ba849783602/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0dc2cdc-b496-40ae-a64f-1ba849783602/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0dc2cdc-b496-40ae-a64f-1ba849783602/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0dc2cdc-b496-40ae-a64f-1ba849783602/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-esbmc-regression/modf.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0dc2cdc-b496-40ae-a64f-1ba849783602/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0dc2cdc-b496-40ae-a64f-1ba849783602/bin/utaipan-aC7eJsxGYH --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c12516b7f88a77979bac7d21927f517ee201562fb275581e963fe3c8b8b467d7 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 04:57:57,146 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:57:57,148 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:57:57,198 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:57:57,199 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:57:57,200 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:57:57,202 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:57:57,205 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:57:57,207 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:57:57,208 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:57:57,209 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:57:57,211 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:57:57,211 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:57:57,216 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:57:57,220 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:57:57,223 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:57:57,225 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:57:57,230 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:57:57,235 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:57:57,240 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:57:57,245 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:57:57,247 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:57:57,250 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:57:57,251 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:57:57,258 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:57:57,259 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:57:57,259 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:57:57,267 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:57:57,268 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:57:57,269 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:57:57,270 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:57:57,271 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:57:57,273 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:57:57,275 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:57:57,276 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:57:57,277 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:57:57,278 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:57:57,278 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:57:57,278 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:57:57,279 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:57:57,280 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:57:57,281 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0dc2cdc-b496-40ae-a64f-1ba849783602/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-03 04:57:57,324 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:57:57,325 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:57:57,326 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:57:57,327 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:57:57,327 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:57:57,327 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:57:57,327 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 04:57:57,328 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:57:57,328 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:57:57,328 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 04:57:57,329 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 04:57:57,329 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:57:57,330 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 04:57:57,330 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 04:57:57,330 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 04:57:57,331 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:57:57,331 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-03 04:57:57,331 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 04:57:57,332 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-03 04:57:57,332 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:57:57,332 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 04:57:57,332 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:57:57,332 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 04:57:57,333 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 04:57:57,333 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-03 04:57:57,333 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 04:57:57,333 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:57:57,334 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 04:57:57,334 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:57:57,335 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:57:57,336 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:57:57,336 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:57:57,336 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:57:57,337 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 04:57:57,337 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 04:57:57,337 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 04:57:57,337 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 04:57:57,337 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:57:57,338 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:57:57,338 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0dc2cdc-b496-40ae-a64f-1ba849783602/bin/utaipan-aC7eJsxGYH/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0dc2cdc-b496-40ae-a64f-1ba849783602/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c12516b7f88a77979bac7d21927f517ee201562fb275581e963fe3c8b8b467d7 [2021-11-03 04:57:57,661 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:57:57,692 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:57:57,694 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:57:57,695 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:57:57,696 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:57:57,697 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0dc2cdc-b496-40ae-a64f-1ba849783602/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/floats-esbmc-regression/modf.i [2021-11-03 04:57:57,770 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0dc2cdc-b496-40ae-a64f-1ba849783602/bin/utaipan-aC7eJsxGYH/data/91fb731e5/0b97589ea4d846b0b34da5e56c1b4e10/FLAG7d3aec32c [2021-11-03 04:57:58,436 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:57:58,437 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0dc2cdc-b496-40ae-a64f-1ba849783602/sv-benchmarks/c/floats-esbmc-regression/modf.i [2021-11-03 04:57:58,451 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0dc2cdc-b496-40ae-a64f-1ba849783602/bin/utaipan-aC7eJsxGYH/data/91fb731e5/0b97589ea4d846b0b34da5e56c1b4e10/FLAG7d3aec32c [2021-11-03 04:57:58,677 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0dc2cdc-b496-40ae-a64f-1ba849783602/bin/utaipan-aC7eJsxGYH/data/91fb731e5/0b97589ea4d846b0b34da5e56c1b4e10 [2021-11-03 04:57:58,679 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:57:58,689 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:57:58,690 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:57:58,691 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:57:58,696 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:57:58,697 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:57:58" (1/1) ... [2021-11-03 04:57:58,698 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fa152de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:57:58, skipping insertion in model container [2021-11-03 04:57:58,699 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:57:58" (1/1) ... [2021-11-03 04:57:58,707 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:57:58,770 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:57:59,337 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0dc2cdc-b496-40ae-a64f-1ba849783602/sv-benchmarks/c/floats-esbmc-regression/modf.i[36279,36292] [2021-11-03 04:57:59,344 ERROR L326 MainTranslator]: Unsupported Syntax: Unsupported function from math.h: modff [2021-11-03 04:57:59,344 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@2777893d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:57:59, skipping insertion in model container [2021-11-03 04:57:59,345 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 04:57:59,345 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-03 04:57:59,347 INFO L168 Benchmark]: Toolchain (without parser) took 657.32 ms. Allocated memory is still 79.7 MB. Free memory was 57.0 MB in the beginning and 54.4 MB in the end (delta: 2.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-03 04:57:59,348 INFO L168 Benchmark]: CDTParser took 0.53 ms. Allocated memory is still 79.7 MB. Free memory was 55.8 MB in the beginning and 55.8 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 04:57:59,349 INFO L168 Benchmark]: CACSL2BoogieTranslator took 654.82 ms. Allocated memory is still 79.7 MB. Free memory was 56.8 MB in the beginning and 54.4 MB in the end (delta: 2.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-03 04:57:59,351 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.53 ms. Allocated memory is still 79.7 MB. Free memory was 55.8 MB in the beginning and 55.8 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 654.82 ms. Allocated memory is still 79.7 MB. Free memory was 56.8 MB in the beginning and 54.4 MB in the end (delta: 2.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 885]: Unsupported Syntax Unsupported function from math.h: modff RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0dc2cdc-b496-40ae-a64f-1ba849783602/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0dc2cdc-b496-40ae-a64f-1ba849783602/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0dc2cdc-b496-40ae-a64f-1ba849783602/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0dc2cdc-b496-40ae-a64f-1ba849783602/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-esbmc-regression/modf.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0dc2cdc-b496-40ae-a64f-1ba849783602/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0dc2cdc-b496-40ae-a64f-1ba849783602/bin/utaipan-aC7eJsxGYH --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c12516b7f88a77979bac7d21927f517ee201562fb275581e963fe3c8b8b467d7 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 04:58:01,663 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:58:01,667 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:58:01,714 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:58:01,715 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:58:01,716 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:58:01,718 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:58:01,720 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:58:01,723 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:58:01,724 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:58:01,725 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:58:01,727 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:58:01,728 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:58:01,729 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:58:01,731 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:58:01,733 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:58:01,734 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:58:01,735 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:58:01,745 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:58:01,747 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:58:01,749 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:58:01,752 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:58:01,754 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:58:01,755 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:58:01,759 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:58:01,760 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:58:01,760 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:58:01,762 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:58:01,762 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:58:01,764 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:58:01,764 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:58:01,765 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:58:01,766 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:58:01,767 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:58:01,769 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:58:01,769 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:58:01,770 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:58:01,770 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:58:01,771 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:58:01,772 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:58:01,773 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:58:01,774 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0dc2cdc-b496-40ae-a64f-1ba849783602/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-03 04:58:01,802 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:58:01,802 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:58:01,803 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:58:01,804 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:58:01,804 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:58:01,804 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:58:01,804 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:58:01,804 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:58:01,805 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:58:01,806 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:58:01,806 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-03 04:58:01,806 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-03 04:58:01,806 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:58:01,806 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 04:58:01,807 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:58:01,807 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 04:58:01,807 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 04:58:01,807 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 04:58:01,808 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 04:58:01,808 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-03 04:58:01,808 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 04:58:01,808 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:58:01,808 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 04:58:01,809 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:58:01,809 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 04:58:01,809 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:58:01,809 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:58:01,810 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:58:01,810 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:58:01,810 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 04:58:01,810 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 04:58:01,810 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 04:58:01,811 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 04:58:01,811 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:58:01,811 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:58:01,811 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0dc2cdc-b496-40ae-a64f-1ba849783602/bin/utaipan-aC7eJsxGYH/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0dc2cdc-b496-40ae-a64f-1ba849783602/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c12516b7f88a77979bac7d21927f517ee201562fb275581e963fe3c8b8b467d7 [2021-11-03 04:58:02,150 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:58:02,173 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:58:02,176 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:58:02,177 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:58:02,178 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:58:02,179 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0dc2cdc-b496-40ae-a64f-1ba849783602/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/floats-esbmc-regression/modf.i [2021-11-03 04:58:02,268 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0dc2cdc-b496-40ae-a64f-1ba849783602/bin/utaipan-aC7eJsxGYH/data/1536e2ce8/706cdbb7f157430cb36f2f2e4cba89b7/FLAGde2340f69 [2021-11-03 04:58:02,934 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:58:02,937 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0dc2cdc-b496-40ae-a64f-1ba849783602/sv-benchmarks/c/floats-esbmc-regression/modf.i [2021-11-03 04:58:02,956 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0dc2cdc-b496-40ae-a64f-1ba849783602/bin/utaipan-aC7eJsxGYH/data/1536e2ce8/706cdbb7f157430cb36f2f2e4cba89b7/FLAGde2340f69 [2021-11-03 04:58:03,240 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0dc2cdc-b496-40ae-a64f-1ba849783602/bin/utaipan-aC7eJsxGYH/data/1536e2ce8/706cdbb7f157430cb36f2f2e4cba89b7 [2021-11-03 04:58:03,243 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:58:03,245 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:58:03,248 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:58:03,248 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:58:03,252 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:58:03,254 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:58:03" (1/1) ... [2021-11-03 04:58:03,255 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@560e8a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:58:03, skipping insertion in model container [2021-11-03 04:58:03,256 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:58:03" (1/1) ... [2021-11-03 04:58:03,264 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:58:03,327 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:58:03,898 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0dc2cdc-b496-40ae-a64f-1ba849783602/sv-benchmarks/c/floats-esbmc-regression/modf.i[36279,36292] [2021-11-03 04:58:03,909 ERROR L326 MainTranslator]: Unsupported Syntax: Unsupported function from math.h: modff [2021-11-03 04:58:03,909 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@75dab26f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:58:03, skipping insertion in model container [2021-11-03 04:58:03,909 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 04:58:03,910 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-03 04:58:03,912 INFO L168 Benchmark]: Toolchain (without parser) took 665.69 ms. Allocated memory is still 52.4 MB. Free memory was 27.8 MB in the beginning and 28.7 MB in the end (delta: -847.5 kB). Peak memory consumption was 7.9 MB. Max. memory is 16.1 GB. [2021-11-03 04:58:03,914 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 52.4 MB. Free memory was 33.0 MB in the beginning and 32.9 MB in the end (delta: 38.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 04:58:03,915 INFO L168 Benchmark]: CACSL2BoogieTranslator took 661.72 ms. Allocated memory is still 52.4 MB. Free memory was 27.6 MB in the beginning and 28.7 MB in the end (delta: -1.0 MB). Peak memory consumption was 7.9 MB. Max. memory is 16.1 GB. [2021-11-03 04:58:03,918 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 52.4 MB. Free memory was 33.0 MB in the beginning and 32.9 MB in the end (delta: 38.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 661.72 ms. Allocated memory is still 52.4 MB. Free memory was 27.6 MB in the beginning and 28.7 MB in the end (delta: -1.0 MB). Peak memory consumption was 7.9 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 885]: Unsupported Syntax Unsupported function from math.h: modff RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN