/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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 SequenceOfStatements --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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/floats-esbmc-regression/modf.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 14:29:37,148 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 14:29:37,151 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 14:29:37,185 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 14:29:37,186 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 14:29:37,187 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 14:29:37,189 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 14:29:37,191 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 14:29:37,196 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 14:29:37,198 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 14:29:37,199 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 14:29:37,200 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 14:29:37,201 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 14:29:37,202 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 14:29:37,203 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 14:29:37,205 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 14:29:37,206 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 14:29:37,207 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 14:29:37,209 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 14:29:37,211 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 14:29:37,213 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 14:29:37,215 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 14:29:37,216 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 14:29:37,217 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 14:29:37,220 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-28 14:29:37,249 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 14:29:37,250 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 14:29:37,251 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 14:29:37,252 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 [2020-10-28 14:29:37,280 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 14:29:37,280 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 14:29:37,282 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 14:29:37,282 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 14:29:37,283 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 14:29:37,283 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 14:29:37,283 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 14:29:37,283 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 14:29:37,283 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 14:29:37,284 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 14:29:37,284 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 14:29:37,284 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 14:29:37,284 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 14:29:37,285 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 14:29:37,285 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 14:29:37,285 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 14:29:37,285 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 14:29:37,285 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 14:29:37,286 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 14:29:37,286 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 14:29:37,286 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 14:29:37,286 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 14:29:37,287 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 14:29:37,287 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 14:29:37,287 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 14:29:37,287 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 14:29:37,287 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 14:29:37,288 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 14:29:37,288 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 14:29:37,288 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 14:29:37,682 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 14:29:37,711 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 14:29:37,715 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 14:29:37,716 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 14:29:37,717 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 14:29:37,720 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/floats-esbmc-regression/modf.i [2020-10-28 14:29:37,807 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7e7187f60/5e64bfec11074d10954cb1606e00d0db/FLAG9cc7fa89e [2020-10-28 14:29:38,705 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 14:29:38,705 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/floats-esbmc-regression/modf.i [2020-10-28 14:29:38,726 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7e7187f60/5e64bfec11074d10954cb1606e00d0db/FLAG9cc7fa89e [2020-10-28 14:29:38,956 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7e7187f60/5e64bfec11074d10954cb1606e00d0db [2020-10-28 14:29:38,959 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 14:29:38,966 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 14:29:38,970 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 14:29:38,970 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 14:29:38,974 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 14:29:38,975 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 02:29:38" (1/1) ... [2020-10-28 14:29:38,980 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c73d52a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:29:38, skipping insertion in model container [2020-10-28 14:29:38,981 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 02:29:38" (1/1) ... [2020-10-28 14:29:38,990 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 14:29:39,060 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 14:29:39,589 ERROR L326 MainTranslator]: Unsupported Syntax: Unsupported function from math.h: modff [2020-10-28 14:29:39,590 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@35682233 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 02:29:39, skipping insertion in model container [2020-10-28 14:29:39,591 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 14:29:39,591 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2020-10-28 14:29:39,594 INFO L168 Benchmark]: Toolchain (without parser) took 631.34 ms. Allocated memory is still 125.8 MB. Free memory was 100.3 MB in the beginning and 87.5 MB in the end (delta: 12.8 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2020-10-28 14:29:39,595 INFO L168 Benchmark]: CDTParser took 0.65 ms. Allocated memory is still 125.8 MB. Free memory was 100.4 MB in the beginning and 100.3 MB in the end (delta: 131.1 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-28 14:29:39,596 INFO L168 Benchmark]: CACSL2BoogieTranslator took 620.85 ms. Allocated memory is still 125.8 MB. Free memory was 99.5 MB in the beginning and 87.5 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 GB. [2020-10-28 14:29:39,598 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.65 ms. Allocated memory is still 125.8 MB. Free memory was 100.4 MB in the beginning and 100.3 MB in the end (delta: 131.1 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 620.85 ms. Allocated memory is still 125.8 MB. Free memory was 99.5 MB in the beginning and 87.5 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 8.0 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...