/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 enumeration-timeout=5 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.5 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/floats-esbmc-regression/modf.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-5644d1e-m [2020-08-19 06:45:34,688 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-19 06:45:34,690 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-19 06:45:34,715 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-19 06:45:34,715 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-19 06:45:34,717 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-19 06:45:34,718 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-19 06:45:34,720 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-19 06:45:34,721 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-19 06:45:34,722 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-19 06:45:34,723 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-19 06:45:34,725 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-19 06:45:34,725 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-19 06:45:34,726 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-19 06:45:34,727 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-19 06:45:34,728 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-19 06:45:34,729 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-19 06:45:34,730 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-19 06:45:34,731 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-19 06:45:34,733 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-19 06:45:34,737 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-19 06:45:34,738 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-19 06:45:34,739 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-19 06:45:34,742 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-19 06:45:34,747 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-19 06:45:34,758 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-19 06:45:34,766 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-19 06:45:34,767 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-19 06:45:34,768 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 [2020-08-19 06:45:34,791 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-19 06:45:34,791 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-19 06:45:34,793 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-19 06:45:34,793 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-19 06:45:34,793 INFO L138 SettingsManager]: * Use SBE=true [2020-08-19 06:45:34,793 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-19 06:45:34,793 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-19 06:45:34,794 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-19 06:45:34,794 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-19 06:45:34,794 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-19 06:45:34,794 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-19 06:45:34,794 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-19 06:45:34,795 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-19 06:45:34,795 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-19 06:45:34,795 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-19 06:45:34,795 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-19 06:45:34,795 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-19 06:45:34,796 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-19 06:45:34,796 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-19 06:45:34,796 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-19 06:45:34,796 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-19 06:45:34,796 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-19 06:45:34,796 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-19 06:45:34,797 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-19 06:45:34,797 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-19 06:45:34,797 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-19 06:45:34,797 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-19 06:45:34,797 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-19 06:45:34,798 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-19 06:45:34,798 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 -> enumeration-timeout=5;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5; [2020-08-19 06:45:35,121 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-19 06:45:35,136 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-19 06:45:35,140 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-19 06:45:35,141 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-19 06:45:35,141 INFO L275 PluginConnector]: CDTParser initialized [2020-08-19 06:45:35,142 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-esbmc-regression/modf.i [2020-08-19 06:45:35,219 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ca3cbc649/e0e53ee1d00440739a709e3be65f29e2/FLAGdee7f8af7 [2020-08-19 06:45:35,760 INFO L306 CDTParser]: Found 1 translation units. [2020-08-19 06:45:35,761 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/floats-esbmc-regression/modf.i [2020-08-19 06:45:35,778 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ca3cbc649/e0e53ee1d00440739a709e3be65f29e2/FLAGdee7f8af7 [2020-08-19 06:45:36,050 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ca3cbc649/e0e53ee1d00440739a709e3be65f29e2 [2020-08-19 06:45:36,065 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-19 06:45:36,066 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-19 06:45:36,067 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-19 06:45:36,067 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-19 06:45:36,070 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-19 06:45:36,071 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 06:45:36" (1/1) ... [2020-08-19 06:45:36,074 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@191ab6b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:45:36, skipping insertion in model container [2020-08-19 06:45:36,074 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.08 06:45:36" (1/1) ... [2020-08-19 06:45:36,082 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-19 06:45:36,123 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-19 06:45:36,612 ERROR L326 MainTranslator]: Unsupported Syntax: Unsupported function from math.h: modff [2020-08-19 06:45:36,613 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@705b44a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.08 06:45:36, skipping insertion in model container [2020-08-19 06:45:36,614 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-19 06:45:36,614 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2020-08-19 06:45:36,705 INFO L168 Benchmark]: Toolchain (without parser) took 549.61 ms. Allocated memory is still 142.1 MB. Free memory was 102.2 MB in the beginning and 87.4 MB in the end (delta: 14.9 MB). Peak memory consumption was 14.9 MB. Max. memory is 7.1 GB. [2020-08-19 06:45:36,707 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 142.1 MB. Free memory was 121.9 MB in the beginning and 121.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-08-19 06:45:36,708 INFO L168 Benchmark]: CACSL2BoogieTranslator took 546.85 ms. Allocated memory is still 142.1 MB. Free memory was 102.0 MB in the beginning and 87.4 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 7.1 GB. [2020-08-19 06:45:36,710 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 142.1 MB. Free memory was 121.9 MB in the beginning and 121.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 546.85 ms. Allocated memory is still 142.1 MB. Free memory was 102.0 MB in the beginning and 87.4 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.6 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...