/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 --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --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-c90d42b [2020-09-24 18:10:34,708 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-09-24 18:10:34,762 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 18:10:34,774 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 18:10:34,776 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 18:10:34,780 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 18:10:34,783 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 18:10:34,787 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 18:10:34,788 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 18:10:34,789 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 18:10:34,789 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 18:10:34,793 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 18:10:34,796 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 18:10:34,797 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 18:10:34,799 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 18:10:34,800 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 18:10:34,802 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 18:10:34,804 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 18:10:34,809 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 18:10:34,810 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 18:10:34,812 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 18:10:34,813 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 18:10:34,817 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-24 18:10:34,834 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 [2020-09-24 18:10:34,887 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 18:10:34,887 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 18:10:34,891 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 18:10:34,891 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 18:10:34,891 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 18:10:34,891 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 18:10:34,892 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 18:10:34,892 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 18:10:34,892 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 18:10:34,892 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 18:10:34,893 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 18:10:34,894 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 18:10:34,894 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 18:10:34,894 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 18:10:34,895 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 18:10:34,895 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 18:10:34,895 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 18:10:34,895 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 18:10:34,895 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 18:10:34,896 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 18:10:34,896 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 18:10:34,896 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 18:10:34,896 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 18:10:34,896 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 18:10:34,897 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 18:10:34,897 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 18:10:34,897 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 18:10:34,897 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 18:10:34,897 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 18:10:34,898 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.rcfgbuilder: Size of a code block -> SingleStatement 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 -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-24 18:10:35,388 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 18:10:35,415 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 18:10:35,419 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 18:10:35,422 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 18:10:35,423 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 18:10:35,425 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-esbmc-regression/modf.i [2020-09-24 18:10:35,520 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e696658e8/48a0fd6309e54642abcb2fcebd699c13/FLAG80849781b [2020-09-24 18:10:36,161 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 18:10:36,162 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/floats-esbmc-regression/modf.i [2020-09-24 18:10:36,180 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e696658e8/48a0fd6309e54642abcb2fcebd699c13/FLAG80849781b [2020-09-24 18:10:36,430 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e696658e8/48a0fd6309e54642abcb2fcebd699c13 [2020-09-24 18:10:36,450 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 18:10:36,456 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 18:10:36,460 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 18:10:36,460 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 18:10:36,465 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 18:10:36,466 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:10:36" (1/1) ... [2020-09-24 18:10:36,471 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b3c1036 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:10:36, skipping insertion in model container [2020-09-24 18:10:36,472 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:10:36" (1/1) ... [2020-09-24 18:10:36,483 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 18:10:36,552 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 18:10:37,248 ERROR L326 MainTranslator]: Unsupported Syntax: Unsupported function from math.h: modff [2020-09-24 18:10:37,249 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3580a6e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:10:37, skipping insertion in model container [2020-09-24 18:10:37,250 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 18:10:37,251 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2020-09-24 18:10:37,256 INFO L168 Benchmark]: Toolchain (without parser) took 802.41 ms. Allocated memory was 143.7 MB in the beginning and 205.0 MB in the end (delta: 61.3 MB). Free memory was 101.4 MB in the beginning and 183.3 MB in the end (delta: -81.8 MB). Peak memory consumption was 23.4 MB. Max. memory is 7.1 GB. [2020-09-24 18:10:37,259 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 143.7 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-24 18:10:37,262 INFO L168 Benchmark]: CACSL2BoogieTranslator took 790.94 ms. Allocated memory was 143.7 MB in the beginning and 205.0 MB in the end (delta: 61.3 MB). Free memory was 100.8 MB in the beginning and 183.3 MB in the end (delta: -82.5 MB). Peak memory consumption was 22.7 MB. Max. memory is 7.1 GB. [2020-09-24 18:10:37,267 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 143.7 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 790.94 ms. Allocated memory was 143.7 MB in the beginning and 205.0 MB in the end (delta: 61.3 MB). Free memory was 100.8 MB in the beginning and 183.3 MB in the end (delta: -82.5 MB). Peak memory consumption was 22.7 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...