./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 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8a2cfb1-744e-4c07-b1f6-9a35c6de8903/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8a2cfb1-744e-4c07-b1f6-9a35c6de8903/bin/utaipan-q2qaUkNPG8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8a2cfb1-744e-4c07-b1f6-9a35c6de8903/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8a2cfb1-744e-4c07-b1f6-9a35c6de8903/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-esbmc-regression/modf.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8a2cfb1-744e-4c07-b1f6-9a35c6de8903/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8a2cfb1-744e-4c07-b1f6-9a35c6de8903/bin/utaipan-q2qaUkNPG8 --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 46ed7e350d328defc86a68888178327eb8983b18 ........................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8a2cfb1-744e-4c07-b1f6-9a35c6de8903/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8a2cfb1-744e-4c07-b1f6-9a35c6de8903/bin/utaipan-q2qaUkNPG8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8a2cfb1-744e-4c07-b1f6-9a35c6de8903/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8a2cfb1-744e-4c07-b1f6-9a35c6de8903/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-esbmc-regression/modf.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8a2cfb1-744e-4c07-b1f6-9a35c6de8903/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8a2cfb1-744e-4c07-b1f6-9a35c6de8903/bin/utaipan-q2qaUkNPG8 --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 46ed7e350d328defc86a68888178327eb8983b18 ....................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 07:02:34,444 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 07:02:34,448 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 07:02:34,493 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 07:02:34,494 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 07:02:34,495 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 07:02:34,497 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 07:02:34,499 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 07:02:34,502 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 07:02:34,503 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 07:02:34,504 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 07:02:34,505 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 07:02:34,506 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 07:02:34,507 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 07:02:34,509 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 07:02:34,510 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 07:02:34,511 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 07:02:34,512 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 07:02:34,515 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 07:02:34,517 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 07:02:34,519 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 07:02:34,520 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 07:02:34,522 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 07:02:34,523 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 07:02:34,527 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 07:02:34,527 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 07:02:34,527 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 07:02:34,529 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 07:02:34,529 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 07:02:34,530 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 07:02:34,531 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 07:02:34,532 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 07:02:34,533 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 07:02:34,534 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 07:02:34,535 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 07:02:34,535 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 07:02:34,536 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 07:02:34,537 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 07:02:34,537 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 07:02:34,538 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 07:02:34,539 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 07:02:34,546 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8a2cfb1-744e-4c07-b1f6-9a35c6de8903/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-13 07:02:34,585 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 07:02:34,585 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 07:02:34,587 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 07:02:34,587 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 07:02:34,587 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 07:02:34,588 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 07:02:34,588 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-13 07:02:34,588 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 07:02:34,594 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 07:02:34,595 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-13 07:02:34,596 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-13 07:02:34,596 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 07:02:34,596 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-13 07:02:34,597 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-13 07:02:34,597 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-13 07:02:34,598 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 07:02:34,598 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 07:02:34,598 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 07:02:34,598 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 07:02:34,599 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 07:02:34,599 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 07:02:34,599 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 07:02:34,599 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 07:02:34,600 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 07:02:34,600 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 07:02:34,600 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 07:02:34,600 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 07:02:34,601 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 07:02:34,601 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 07:02:34,602 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 07:02:34,603 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:02:34,603 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 07:02:34,603 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 07:02:34,604 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 07:02:34,604 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-13 07:02:34,604 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 07:02:34,604 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 07:02:34,605 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 07:02:34,605 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 07:02:34,605 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_a8a2cfb1-744e-4c07-b1f6-9a35c6de8903/bin/utaipan-q2qaUkNPG8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8a2cfb1-744e-4c07-b1f6-9a35c6de8903/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 46ed7e350d328defc86a68888178327eb8983b18 [2021-10-13 07:02:34,869 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 07:02:34,894 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 07:02:34,896 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 07:02:34,898 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 07:02:34,899 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 07:02:34,900 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8a2cfb1-744e-4c07-b1f6-9a35c6de8903/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/floats-esbmc-regression/modf.i [2021-10-13 07:02:34,987 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8a2cfb1-744e-4c07-b1f6-9a35c6de8903/bin/utaipan-q2qaUkNPG8/data/030295d7e/7d7cd89f88c24ea98e1f16d19aa220ef/FLAGeb9c17414 [2021-10-13 07:02:35,604 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 07:02:35,605 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8a2cfb1-744e-4c07-b1f6-9a35c6de8903/sv-benchmarks/c/floats-esbmc-regression/modf.i [2021-10-13 07:02:35,620 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8a2cfb1-744e-4c07-b1f6-9a35c6de8903/bin/utaipan-q2qaUkNPG8/data/030295d7e/7d7cd89f88c24ea98e1f16d19aa220ef/FLAGeb9c17414 [2021-10-13 07:02:35,864 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8a2cfb1-744e-4c07-b1f6-9a35c6de8903/bin/utaipan-q2qaUkNPG8/data/030295d7e/7d7cd89f88c24ea98e1f16d19aa220ef [2021-10-13 07:02:35,867 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 07:02:35,869 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 07:02:35,885 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 07:02:35,885 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 07:02:35,889 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 07:02:35,890 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:02:35" (1/1) ... [2021-10-13 07:02:35,891 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d0dddc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:02:35, skipping insertion in model container [2021-10-13 07:02:35,891 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:02:35" (1/1) ... [2021-10-13 07:02:35,902 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 07:02:35,953 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 07:02:36,490 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_a8a2cfb1-744e-4c07-b1f6-9a35c6de8903/sv-benchmarks/c/floats-esbmc-regression/modf.i[36279,36292] [2021-10-13 07:02:36,506 ERROR L326 MainTranslator]: Unsupported Syntax: Unsupported function from math.h: modff [2021-10-13 07:02:36,507 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@10bc65f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:02:36, skipping insertion in model container [2021-10-13 07:02:36,508 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 07:02:36,508 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-13 07:02:36,511 INFO L168 Benchmark]: Toolchain (without parser) took 640.11 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 56.1 MB in the beginning and 84.9 MB in the end (delta: -28.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 07:02:36,513 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 92.3 MB. Free memory was 62.1 MB in the beginning and 62.1 MB in the end (delta: 28.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:02:36,515 INFO L168 Benchmark]: CACSL2BoogieTranslator took 622.86 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 55.9 MB in the beginning and 84.9 MB in the end (delta: -28.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 07:02:36,518 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 92.3 MB. Free memory was 62.1 MB in the beginning and 62.1 MB in the end (delta: 28.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 622.86 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 55.9 MB in the beginning and 84.9 MB in the end (delta: -28.9 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... ### Bit-precise run ### This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 07:02:38,947 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 07:02:38,950 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 07:02:38,985 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 07:02:38,986 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 07:02:38,988 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 07:02:38,990 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 07:02:38,993 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 07:02:38,996 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 07:02:38,997 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 07:02:38,999 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 07:02:39,001 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 07:02:39,002 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 07:02:39,003 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 07:02:39,005 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 07:02:39,007 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 07:02:39,008 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 07:02:39,017 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 07:02:39,022 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 07:02:39,029 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 07:02:39,035 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 07:02:39,038 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 07:02:39,040 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 07:02:39,042 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 07:02:39,050 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 07:02:39,051 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 07:02:39,052 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 07:02:39,056 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 07:02:39,061 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 07:02:39,063 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 07:02:39,064 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 07:02:39,066 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 07:02:39,068 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 07:02:39,069 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 07:02:39,072 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 07:02:39,073 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 07:02:39,074 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 07:02:39,074 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 07:02:39,087 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 07:02:39,089 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 07:02:39,090 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 07:02:39,091 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8a2cfb1-744e-4c07-b1f6-9a35c6de8903/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-13 07:02:39,147 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 07:02:39,147 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 07:02:39,149 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 07:02:39,150 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 07:02:39,150 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 07:02:39,150 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 07:02:39,151 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 07:02:39,151 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 07:02:39,152 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 07:02:39,153 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 07:02:39,155 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 07:02:39,155 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 07:02:39,156 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 07:02:39,156 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 07:02:39,156 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 07:02:39,157 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 07:02:39,157 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 07:02:39,157 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-13 07:02:39,158 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-13 07:02:39,158 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 07:02:39,159 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 07:02:39,159 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 07:02:39,159 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 07:02:39,160 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 07:02:39,160 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 07:02:39,160 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 07:02:39,161 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:02:39,161 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 07:02:39,162 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 07:02:39,162 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 07:02:39,162 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-13 07:02:39,163 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-13 07:02:39,163 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 07:02:39,163 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 07:02:39,164 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 07:02:39,164 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_a8a2cfb1-744e-4c07-b1f6-9a35c6de8903/bin/utaipan-q2qaUkNPG8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8a2cfb1-744e-4c07-b1f6-9a35c6de8903/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 46ed7e350d328defc86a68888178327eb8983b18 [2021-10-13 07:02:39,643 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 07:02:39,680 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 07:02:39,683 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 07:02:39,684 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 07:02:39,687 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 07:02:39,690 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8a2cfb1-744e-4c07-b1f6-9a35c6de8903/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/floats-esbmc-regression/modf.i [2021-10-13 07:02:39,766 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8a2cfb1-744e-4c07-b1f6-9a35c6de8903/bin/utaipan-q2qaUkNPG8/data/6c6555d76/0f1e9e1bc47148278c6f920d833ebd7e/FLAG21dcec084 [2021-10-13 07:02:40,532 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 07:02:40,533 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8a2cfb1-744e-4c07-b1f6-9a35c6de8903/sv-benchmarks/c/floats-esbmc-regression/modf.i [2021-10-13 07:02:40,550 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8a2cfb1-744e-4c07-b1f6-9a35c6de8903/bin/utaipan-q2qaUkNPG8/data/6c6555d76/0f1e9e1bc47148278c6f920d833ebd7e/FLAG21dcec084 [2021-10-13 07:02:40,772 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8a2cfb1-744e-4c07-b1f6-9a35c6de8903/bin/utaipan-q2qaUkNPG8/data/6c6555d76/0f1e9e1bc47148278c6f920d833ebd7e [2021-10-13 07:02:40,775 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 07:02:40,777 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 07:02:40,779 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 07:02:40,779 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 07:02:40,794 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 07:02:40,795 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:02:40" (1/1) ... [2021-10-13 07:02:40,797 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@481ad38d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:02:40, skipping insertion in model container [2021-10-13 07:02:40,798 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:02:40" (1/1) ... [2021-10-13 07:02:40,808 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 07:02:40,876 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 07:02:41,581 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_a8a2cfb1-744e-4c07-b1f6-9a35c6de8903/sv-benchmarks/c/floats-esbmc-regression/modf.i[36279,36292] [2021-10-13 07:02:41,596 ERROR L326 MainTranslator]: Unsupported Syntax: Unsupported function from math.h: modff [2021-10-13 07:02:41,598 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6fa92473 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:02:41, skipping insertion in model container [2021-10-13 07:02:41,599 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 07:02:41,600 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-10-13 07:02:41,604 INFO L168 Benchmark]: Toolchain (without parser) took 824.54 ms. Allocated memory was 58.7 MB in the beginning and 77.6 MB in the end (delta: 18.9 MB). Free memory was 36.0 MB in the beginning and 58.9 MB in the end (delta: -23.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 07:02:41,606 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 58.7 MB. Free memory is still 39.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:02:41,608 INFO L168 Benchmark]: CACSL2BoogieTranslator took 820.73 ms. Allocated memory was 58.7 MB in the beginning and 77.6 MB in the end (delta: 18.9 MB). Free memory was 35.8 MB in the beginning and 58.9 MB in the end (delta: -23.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 07:02:41,610 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 58.7 MB. Free memory is still 39.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 820.73 ms. Allocated memory was 58.7 MB in the beginning and 77.6 MB in the end (delta: 18.9 MB). Free memory was 35.8 MB in the beginning and 58.9 MB in the end (delta: -23.1 MB). Peak memory consumption was 10.5 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...