/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/floats-esbmc-regression/modf.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-177f698 [2020-08-21 14:04:09,444 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-21 14:04:09,447 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-21 14:04:09,487 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-21 14:04:09,488 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-21 14:04:09,496 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-21 14:04:09,498 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-21 14:04:09,501 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-21 14:04:09,504 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-21 14:04:09,506 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-21 14:04:09,507 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-21 14:04:09,508 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-21 14:04:09,508 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-21 14:04:09,511 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-21 14:04:09,513 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-21 14:04:09,514 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-21 14:04:09,515 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-21 14:04:09,516 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-21 14:04:09,517 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-21 14:04:09,525 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-21 14:04:09,527 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-21 14:04:09,528 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-21 14:04:09,529 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-21 14:04:09,529 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-21 14:04:09,541 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-21 14:04:09,558 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-21 14:04:09,559 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-21 14:04:09,559 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-21 14:04:09,560 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-08-21 14:04:09,597 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-21 14:04:09,597 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-21 14:04:09,598 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-21 14:04:09,599 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-21 14:04:09,599 INFO L138 SettingsManager]: * Use SBE=true [2020-08-21 14:04:09,599 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-21 14:04:09,599 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-21 14:04:09,599 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-21 14:04:09,600 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-21 14:04:09,600 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-21 14:04:09,601 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-21 14:04:09,601 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-21 14:04:09,601 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-21 14:04:09,602 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-21 14:04:09,602 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-21 14:04:09,603 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-21 14:04:09,603 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-21 14:04:09,603 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-21 14:04:09,603 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-21 14:04:09,603 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-21 14:04:09,604 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-21 14:04:09,604 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-21 14:04:09,604 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-21 14:04:09,604 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-21 14:04:09,605 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-21 14:04:09,605 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-21 14:04:09,605 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-21 14:04:09,605 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-21 14:04:09,605 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-21 14:04:09,605 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> log-additional-information=true; [2020-08-21 14:04:09,894 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-21 14:04:09,914 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-21 14:04:09,918 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-21 14:04:09,922 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-21 14:04:09,923 INFO L275 PluginConnector]: CDTParser initialized [2020-08-21 14:04:09,924 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-esbmc-regression/modf.i [2020-08-21 14:04:10,000 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6ac19744e/e82d50605f9a4c9f8fcf2eb1812d73b4/FLAG0ccd5f324 [2020-08-21 14:04:10,590 INFO L306 CDTParser]: Found 1 translation units. [2020-08-21 14:04:10,590 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/floats-esbmc-regression/modf.i [2020-08-21 14:04:10,602 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6ac19744e/e82d50605f9a4c9f8fcf2eb1812d73b4/FLAG0ccd5f324 [2020-08-21 14:04:10,839 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6ac19744e/e82d50605f9a4c9f8fcf2eb1812d73b4 [2020-08-21 14:04:10,848 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-21 14:04:10,849 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-21 14:04:10,850 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-21 14:04:10,850 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-21 14:04:10,854 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-21 14:04:10,855 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 02:04:10" (1/1) ... [2020-08-21 14:04:10,858 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25632e2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 02:04:10, skipping insertion in model container [2020-08-21 14:04:10,858 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.08 02:04:10" (1/1) ... [2020-08-21 14:04:10,866 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-21 14:04:10,925 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-21 14:04:11,424 ERROR L326 MainTranslator]: Unsupported Syntax: Unsupported function from math.h: modff [2020-08-21 14:04:11,425 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@35a0a239 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.08 02:04:11, skipping insertion in model container [2020-08-21 14:04:11,425 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-21 14:04:11,426 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2020-08-21 14:04:11,516 INFO L168 Benchmark]: Toolchain (without parser) took 578.57 ms. Allocated memory is still 139.5 MB. Free memory was 100.2 MB in the beginning and 86.9 MB in the end (delta: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 7.1 GB. [2020-08-21 14:04:11,518 INFO L168 Benchmark]: CDTParser took 0.42 ms. Allocated memory is still 139.5 MB. Free memory was 119.7 MB in the beginning and 119.3 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. [2020-08-21 14:04:11,519 INFO L168 Benchmark]: CACSL2BoogieTranslator took 575.63 ms. Allocated memory is still 139.5 MB. Free memory was 100.2 MB in the beginning and 86.9 MB in the end (delta: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 7.1 GB. [2020-08-21 14:04:11,521 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42 ms. Allocated memory is still 139.5 MB. Free memory was 119.7 MB in the beginning and 119.3 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 575.63 ms. Allocated memory is still 139.5 MB. Free memory was 100.2 MB in the beginning and 86.9 MB in the end (delta: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 7.1 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...