/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.2 -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 [2020-08-18 23:28:36,187 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-08-18 23:28:36,262 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-18 23:28:36,265 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-18 23:28:36,267 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-18 23:28:36,269 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-18 23:28:36,271 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-18 23:28:36,272 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-18 23:28:36,273 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-18 23:28:36,280 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-18 23:28:36,283 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-18 23:28:36,284 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-18 23:28:36,286 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-18 23:28:36,287 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-18 23:28:36,291 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-18 23:28:36,306 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 [2020-08-18 23:28:36,346 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-18 23:28:36,346 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-18 23:28:36,348 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-18 23:28:36,348 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-18 23:28:36,348 INFO L138 SettingsManager]: * Use SBE=true [2020-08-18 23:28:36,348 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-18 23:28:36,349 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-18 23:28:36,349 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-18 23:28:36,349 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-18 23:28:36,349 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-18 23:28:36,350 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-18 23:28:36,351 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-18 23:28:36,351 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-18 23:28:36,351 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-18 23:28:36,351 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-18 23:28:36,352 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-18 23:28:36,352 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-18 23:28:36,352 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-18 23:28:36,352 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-18 23:28:36,353 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-18 23:28:36,353 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-18 23:28:36,353 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-18 23:28:36,353 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-18 23:28:36,353 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-18 23:28:36,354 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-18 23:28:36,354 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-18 23:28:36,354 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-18 23:28:36,354 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-18 23:28:36,354 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-18 23:28:36,354 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=WIDESTAMONGSMALL;tolerance=0.2; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> enumeration-timeout=5;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.2; [2020-08-18 23:28:36,646 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-18 23:28:36,669 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-18 23:28:36,674 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-18 23:28:36,676 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-18 23:28:36,677 INFO L275 PluginConnector]: CDTParser initialized [2020-08-18 23:28:36,677 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-esbmc-regression/modf.i [2020-08-18 23:28:36,740 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/97b79e037/5174a5db3bee4dc0add3a146aa7e52cc/FLAG45b58a9ef [2020-08-18 23:28:37,300 INFO L306 CDTParser]: Found 1 translation units. [2020-08-18 23:28:37,300 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/floats-esbmc-regression/modf.i [2020-08-18 23:28:37,316 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/97b79e037/5174a5db3bee4dc0add3a146aa7e52cc/FLAG45b58a9ef [2020-08-18 23:28:37,639 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/97b79e037/5174a5db3bee4dc0add3a146aa7e52cc [2020-08-18 23:28:37,649 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-18 23:28:37,651 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-18 23:28:37,653 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-18 23:28:37,653 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-18 23:28:37,656 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-18 23:28:37,657 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 11:28:37" (1/1) ... [2020-08-18 23:28:37,660 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3dc17a6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:28:37, skipping insertion in model container [2020-08-18 23:28:37,660 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 11:28:37" (1/1) ... [2020-08-18 23:28:37,668 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-18 23:28:37,728 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-18 23:28:38,261 ERROR L326 MainTranslator]: Unsupported Syntax: Unsupported function from math.h: modff [2020-08-18 23:28:38,263 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1b9107a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 11:28:38, skipping insertion in model container [2020-08-18 23:28:38,263 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-18 23:28:38,263 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2020-08-18 23:28:38,267 INFO L168 Benchmark]: Toolchain (without parser) took 615.11 ms. Allocated memory is still 140.0 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. [2020-08-18 23:28:38,268 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-08-18 23:28:38,270 INFO L168 Benchmark]: CACSL2BoogieTranslator took 610.67 ms. Allocated memory is still 140.0 MB. Free memory was 101.8 MB in the beginning and 87.4 MB in the end (delta: 14.4 MB). Peak memory consumption was 14.4 MB. Max. memory is 7.1 GB. [2020-08-18 23:28:38,274 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 610.67 ms. Allocated memory is still 140.0 MB. Free memory was 101.8 MB in the beginning and 87.4 MB in the end (delta: 14.4 MB). Peak memory consumption was 14.4 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...