./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/floats-cbmc-regression/float-to-double1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8d31f386 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/floats-cbmc-regression/float-to-double1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 750a1ab7397e44f2b5a951260f4479cbcd135f37 .......................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/floats-cbmc-regression/float-to-double1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 750a1ab7397e44f2b5a951260f4479cbcd135f37 ............................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.multireach-323-8d31f38 [2021-07-04 22:54:28,798 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-04 22:54:28,799 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-04 22:54:28,836 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-04 22:54:28,836 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-04 22:54:28,839 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-04 22:54:28,840 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-04 22:54:28,844 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-04 22:54:28,846 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-04 22:54:28,851 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-04 22:54:28,851 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-04 22:54:28,852 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-04 22:54:28,852 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-04 22:54:28,854 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-04 22:54:28,854 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-04 22:54:28,855 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-04 22:54:28,855 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-04 22:54:28,856 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-04 22:54:28,856 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-04 22:54:28,857 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-04 22:54:28,858 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-04 22:54:28,860 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-04 22:54:28,863 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-04 22:54:28,864 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-04 22:54:28,870 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-04 22:54:28,870 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-04 22:54:28,870 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-04 22:54:28,871 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-04 22:54:28,871 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-04 22:54:28,872 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-04 22:54:28,872 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-04 22:54:28,873 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-04 22:54:28,874 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-04 22:54:28,874 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-04 22:54:28,875 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-04 22:54:28,875 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-04 22:54:28,875 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-04 22:54:28,876 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-04 22:54:28,876 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-04 22:54:28,877 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-04 22:54:28,877 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-04 22:54:28,881 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-07-04 22:54:28,907 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-04 22:54:28,908 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-04 22:54:28,910 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-04 22:54:28,910 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-04 22:54:28,910 INFO L138 SettingsManager]: * Use SBE=true [2021-07-04 22:54:28,910 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-04 22:54:28,910 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-04 22:54:28,911 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-04 22:54:28,911 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-04 22:54:28,911 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-04 22:54:28,912 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-04 22:54:28,912 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-04 22:54:28,912 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-04 22:54:28,912 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-04 22:54:28,912 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-04 22:54:28,913 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-04 22:54:28,913 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-04 22:54:28,913 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-04 22:54:28,913 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-04 22:54:28,913 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-04 22:54:28,913 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-04 22:54:28,913 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-04 22:54:28,914 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-04 22:54:28,914 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-04 22:54:28,914 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-04 22:54:28,914 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-04 22:54:28,914 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-04 22:54:28,914 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-07-04 22:54:28,914 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/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 750a1ab7397e44f2b5a951260f4479cbcd135f37 [2021-07-04 22:54:29,154 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-04 22:54:29,181 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-04 22:54:29,183 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-04 22:54:29,183 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-04 22:54:29,197 INFO L275 PluginConnector]: CDTParser initialized [2021-07-04 22:54:29,197 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float-to-double1.i [2021-07-04 22:54:29,268 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b7acebf9/509e3654f3034abbad176b4a63a9fd0c/FLAG8238f6022 [2021-07-04 22:54:29,671 INFO L306 CDTParser]: Found 1 translation units. [2021-07-04 22:54:29,672 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-to-double1.i [2021-07-04 22:54:29,693 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b7acebf9/509e3654f3034abbad176b4a63a9fd0c/FLAG8238f6022 [2021-07-04 22:54:29,702 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b7acebf9/509e3654f3034abbad176b4a63a9fd0c [2021-07-04 22:54:29,704 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-04 22:54:29,706 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-07-04 22:54:29,708 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-04 22:54:29,708 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-04 22:54:29,710 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-04 22:54:29,711 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.07 10:54:29" (1/1) ... [2021-07-04 22:54:29,711 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b3fa245 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:54:29, skipping insertion in model container [2021-07-04 22:54:29,712 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.07 10:54:29" (1/1) ... [2021-07-04 22:54:29,716 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-04 22:54:29,756 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-04 22:54:30,218 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: isnan at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:846) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.handleUnaryFloatFunction(StandardFunctionHandler.java:1728) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1408) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:267) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1087) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:276) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2349) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:712) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2349) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:713) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2349) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2349) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:303) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1576) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:229) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1052) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1430) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3219) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2299) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:580) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-07-04 22:54:30,223 INFO L168 Benchmark]: Toolchain (without parser) took 516.33 ms. Allocated memory is still 75.5 MB. Free memory was 49.8 MB in the beginning and 56.5 MB in the end (delta: -6.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-07-04 22:54:30,224 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 56.6 MB. Free memory was 37.3 MB in the beginning and 37.3 MB in the end (delta: 38.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-04 22:54:30,225 INFO L168 Benchmark]: CACSL2BoogieTranslator took 513.65 ms. Allocated memory is still 75.5 MB. Free memory was 49.7 MB in the beginning and 56.5 MB in the end (delta: -6.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-07-04 22:54:30,226 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 56.6 MB. Free memory was 37.3 MB in the beginning and 37.3 MB in the end (delta: 38.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 513.65 ms. Allocated memory is still 75.5 MB. Free memory was 49.7 MB in the beginning and 56.5 MB in the end (delta: -6.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: isnan de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: isnan: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:846) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-wip.dd.multireach-323-8d31f38 [2021-07-04 22:54:31,771 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-04 22:54:31,773 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-04 22:54:31,802 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-04 22:54:31,802 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-04 22:54:31,805 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-04 22:54:31,806 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-04 22:54:31,809 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-04 22:54:31,811 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-04 22:54:31,814 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-04 22:54:31,815 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-04 22:54:31,816 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-04 22:54:31,816 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-04 22:54:31,817 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-04 22:54:31,818 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-04 22:54:31,819 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-04 22:54:31,821 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-04 22:54:31,822 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-04 22:54:31,823 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-04 22:54:31,827 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-04 22:54:31,828 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-04 22:54:31,829 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-04 22:54:31,830 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-04 22:54:31,831 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-04 22:54:31,835 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-04 22:54:31,835 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-04 22:54:31,835 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-04 22:54:31,836 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-04 22:54:31,837 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-04 22:54:31,837 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-04 22:54:31,837 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-04 22:54:31,838 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-04 22:54:31,838 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-04 22:54:31,839 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-04 22:54:31,840 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-04 22:54:31,840 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-04 22:54:31,840 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-04 22:54:31,840 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-04 22:54:31,841 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-04 22:54:31,842 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-04 22:54:31,842 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-04 22:54:31,843 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-07-04 22:54:31,876 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-04 22:54:31,876 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-04 22:54:31,878 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-04 22:54:31,878 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-04 22:54:31,878 INFO L138 SettingsManager]: * Use SBE=true [2021-07-04 22:54:31,878 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-04 22:54:31,878 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-04 22:54:31,879 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-04 22:54:31,879 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-04 22:54:31,879 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-04 22:54:31,880 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-04 22:54:31,880 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-04 22:54:31,880 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-07-04 22:54:31,880 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-07-04 22:54:31,880 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-04 22:54:31,880 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-04 22:54:31,880 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-04 22:54:31,880 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-04 22:54:31,881 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-04 22:54:31,881 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-04 22:54:31,881 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-04 22:54:31,881 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-04 22:54:31,881 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-04 22:54:31,881 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-04 22:54:31,881 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-04 22:54:31,881 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-07-04 22:54:31,881 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-07-04 22:54:31,882 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-04 22:54:31,882 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-07-04 22:54:31,882 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-07-04 22:54:31,882 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 750a1ab7397e44f2b5a951260f4479cbcd135f37 [2021-07-04 22:54:32,130 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-04 22:54:32,155 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-04 22:54:32,156 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-04 22:54:32,157 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-04 22:54:32,157 INFO L275 PluginConnector]: CDTParser initialized [2021-07-04 22:54:32,158 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/floats-cbmc-regression/float-to-double1.i [2021-07-04 22:54:32,226 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8fce28b0d/11cf3f54b7574c778d0bf71e240b1c07/FLAGa8ed9b9a4 [2021-07-04 22:54:32,655 INFO L306 CDTParser]: Found 1 translation units. [2021-07-04 22:54:32,655 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-to-double1.i [2021-07-04 22:54:32,672 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8fce28b0d/11cf3f54b7574c778d0bf71e240b1c07/FLAGa8ed9b9a4 [2021-07-04 22:54:32,686 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8fce28b0d/11cf3f54b7574c778d0bf71e240b1c07 [2021-07-04 22:54:32,687 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-04 22:54:32,688 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-07-04 22:54:32,691 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-04 22:54:32,691 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-04 22:54:32,693 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-04 22:54:32,693 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.07 10:54:32" (1/1) ... [2021-07-04 22:54:32,694 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13720f6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:54:32, skipping insertion in model container [2021-07-04 22:54:32,694 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.07 10:54:32" (1/1) ... [2021-07-04 22:54:32,699 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-04 22:54:32,735 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-04 22:54:33,096 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-to-double1.i[41018,41031] [2021-07-04 22:54:33,098 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-04 22:54:33,105 INFO L203 MainTranslator]: Completed pre-run [2021-07-04 22:54:33,128 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/floats-cbmc-regression/float-to-double1.i[41018,41031] [2021-07-04 22:54:33,128 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-04 22:54:33,304 INFO L208 MainTranslator]: Completed translation [2021-07-04 22:54:33,304 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:54:33 WrapperNode [2021-07-04 22:54:33,305 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-04 22:54:33,306 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-04 22:54:33,306 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-04 22:54:33,306 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-04 22:54:33,311 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:54:33" (1/1) ... [2021-07-04 22:54:33,328 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:54:33" (1/1) ... [2021-07-04 22:54:33,363 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-04 22:54:33,363 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-04 22:54:33,370 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-04 22:54:33,371 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-04 22:54:33,375 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:54:33" (1/1) ... [2021-07-04 22:54:33,376 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:54:33" (1/1) ... [2021-07-04 22:54:33,377 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:54:33" (1/1) ... [2021-07-04 22:54:33,377 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:54:33" (1/1) ... [2021-07-04 22:54:33,389 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:54:33" (1/1) ... [2021-07-04 22:54:33,390 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:54:33" (1/1) ... [2021-07-04 22:54:33,391 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:54:33" (1/1) ... [2021-07-04 22:54:33,393 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-04 22:54:33,393 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-04 22:54:33,393 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-04 22:54:33,394 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-04 22:54:33,394 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:54:33" (1/1) ... [2021-07-04 22:54:33,398 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-04 22:54:33,402 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-04 22:54:33,411 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-07-04 22:54:33,425 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-07-04 22:54:33,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-07-04 22:54:33,453 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-04 22:54:33,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-04 22:54:33,454 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-04 22:54:33,626 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-04 22:54:33,626 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-07-04 22:54:33,627 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.07 10:54:33 BoogieIcfgContainer [2021-07-04 22:54:33,627 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-04 22:54:33,628 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-04 22:54:33,628 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-04 22:54:33,630 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-04 22:54:33,630 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.07 10:54:32" (1/3) ... [2021-07-04 22:54:33,631 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d653a5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.07 10:54:33, skipping insertion in model container [2021-07-04 22:54:33,631 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.07 10:54:33" (2/3) ... [2021-07-04 22:54:33,631 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d653a5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.07 10:54:33, skipping insertion in model container [2021-07-04 22:54:33,631 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.07 10:54:33" (3/3) ... [2021-07-04 22:54:33,632 INFO L111 eAbstractionObserver]: Analyzing ICFG float-to-double1.i [2021-07-04 22:54:33,636 INFO L198 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-04 22:54:33,636 INFO L158 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-04 22:54:33,665 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION ======== [2021-07-04 22:54:33,668 INFO L329 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mLimitAnalysisTime=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-07-04 22:54:33,668 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-04 22:54:33,675 INFO L276 IsEmpty]: Start isEmpty. Operand has 8 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-04 22:54:33,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-07-04 22:54:33,678 INFO L517 BasicCegarLoop]: Found error trace [2021-07-04 22:54:33,678 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-07-04 22:54:33,679 INFO L374 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-07-04 22:54:33,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-04 22:54:33,682 INFO L82 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2021-07-04 22:54:33,689 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-07-04 22:54:33,689 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2132706583] [2021-07-04 22:54:33,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-04 22:54:33,690 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-07-04 22:54:33,690 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-07-04 22:54:33,705 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-07-04 22:54:33,706 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-07-04 22:54:34,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-04 22:54:34,023 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 5 conjunts are in the unsatisfiable core [2021-07-04 22:54:34,026 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-04 22:54:34,036 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:34,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-04 22:54:34,037 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:34,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-04 22:54:34,039 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:34,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-04 22:54:34,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:34,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-04 22:54:34,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:34,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-04 22:54:34,053 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:34,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-04 22:54:34,058 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:34,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-04 22:54:34,059 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:34,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-04 22:54:36,042 WARN L205 SmtUtils]: Spent 689.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2021-07-04 22:54:36,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:36,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-07-04 22:54:36,048 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:36,049 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-04 22:54:36,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:36,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-07-04 22:54:36,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-07-04 22:54:36,053 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:38,067 INFO L732 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-07-04 22:54:38,068 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-04 22:54:38,098 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:38,098 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-04 22:54:38,101 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:40,115 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-04 22:54:40,125 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:40,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-07-04 22:54:42,139 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-04 22:54:42,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:42,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-07-04 22:54:42,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-07-04 22:54:42,143 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-04 22:54:42,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:42,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-07-04 22:54:42,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-04 22:54:46,176 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:46,176 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-04 22:54:46,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:46,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-07-04 22:54:46,179 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-04 22:54:46,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:46,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-07-04 22:54:46,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-07-04 22:54:46,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:46,182 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-04 22:54:46,182 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:46,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-07-04 22:54:46,183 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-04 22:54:46,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:46,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-07-04 22:54:46,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-07-04 22:54:48,206 WARN L838 $PredicateComparison]: unable to prove that (or (exists ((ULTIMATE.start_main_~f~0 (_ FloatingPoint 8 24))) (and (not (fp.eq ULTIMATE.start_main_~f~0 ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven ULTIMATE.start_main_~f~0)))) (not (fp.isNaN ULTIMATE.start_main_~f~0)))) (exists ((ULTIMATE.start_main_~f~0 (_ FloatingPoint 8 24))) (let ((.cse0 ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven ULTIMATE.start_main_~f~0)))) (and (not (fp.isNaN .cse0)) (not (fp.eq ULTIMATE.start_main_~f~0 .cse0)))))) is different from false [2021-07-04 22:54:50,229 WARN L860 $PredicateComparison]: unable to prove that (or (exists ((ULTIMATE.start_main_~f~0 (_ FloatingPoint 8 24))) (and (not (fp.eq ULTIMATE.start_main_~f~0 ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven ULTIMATE.start_main_~f~0)))) (not (fp.isNaN ULTIMATE.start_main_~f~0)))) (exists ((ULTIMATE.start_main_~f~0 (_ FloatingPoint 8 24))) (let ((.cse0 ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven ULTIMATE.start_main_~f~0)))) (and (not (fp.isNaN .cse0)) (not (fp.eq ULTIMATE.start_main_~f~0 .cse0)))))) is different from true [2021-07-04 22:54:50,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-04 22:54:50,231 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-07-04 22:54:50,232 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:50,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:54:50,233 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:50,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:54:50,234 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:50,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:54:50,235 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:50,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-04 22:54:50,242 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:50,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-04 22:54:50,243 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:50,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-04 22:54:50,245 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:50,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-04 22:54:50,246 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:50,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-04 22:54:53,384 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:53,385 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-04 22:54:53,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:53,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-04 22:54:53,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-07-04 22:54:53,399 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:53,400 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-04 22:54:53,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:53,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-07-04 22:54:53,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-07-04 22:54:53,411 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:53,412 INFO L732 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2021-07-04 22:54:53,412 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-04 22:54:53,413 INFO L739 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:53,414 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-04 22:54:53,414 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:53,415 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-04 22:54:53,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:53,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-04 22:54:53,416 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-04 22:54:53,417 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:53,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-07-04 22:54:53,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-07-04 22:54:53,418 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-04 22:54:53,418 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:53,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-07-04 22:54:53,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-07-04 22:54:53,421 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:53,422 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-04 22:54:53,422 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:53,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-07-04 22:54:53,423 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-04 22:54:53,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:53,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-04 22:54:53,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-07-04 22:54:53,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:53,425 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-04 22:54:53,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:53,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-07-04 22:54:53,426 WARN L159 QuantifierPusher]: Ignoring assumption. [2021-07-04 22:54:53,427 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-04 22:54:53,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-07-04 22:54:53,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-07-04 22:54:55,448 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_ULTIMATE.start_main_~f~0_6 (_ FloatingPoint 8 24))) (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode v_ULTIMATE.start_main_~f~0_6)))) (or (fp.eq v_ULTIMATE.start_main_~f~0_6 .cse0) (fp.isNaN .cse0)))) (forall ((v_ULTIMATE.start_main_~f~0_6 (_ FloatingPoint 8 24))) (or (fp.isNaN v_ULTIMATE.start_main_~f~0_6) (fp.eq v_ULTIMATE.start_main_~f~0_6 ((_ to_fp 8 24) c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode v_ULTIMATE.start_main_~f~0_6)))))) is different from false [2021-07-04 22:54:57,468 WARN L860 $PredicateComparison]: unable to prove that (and (forall ((v_ULTIMATE.start_main_~f~0_6 (_ FloatingPoint 8 24))) (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode v_ULTIMATE.start_main_~f~0_6)))) (or (fp.eq v_ULTIMATE.start_main_~f~0_6 .cse0) (fp.isNaN .cse0)))) (forall ((v_ULTIMATE.start_main_~f~0_6 (_ FloatingPoint 8 24))) (or (fp.isNaN v_ULTIMATE.start_main_~f~0_6) (fp.eq v_ULTIMATE.start_main_~f~0_6 ((_ to_fp 8 24) c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode v_ULTIMATE.start_main_~f~0_6)))))) is different from true [2021-07-04 22:54:57,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-04 22:54:57,469 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-07-04 22:54:57,469 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2132706583] [2021-07-04 22:54:57,470 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2132706583] provided 2 perfect and 0 imperfect interpolant sequences [2021-07-04 22:54:57,470 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-07-04 22:54:57,470 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 6 [2021-07-04 22:54:57,471 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231732148] [2021-07-04 22:54:57,474 INFO L425 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-04 22:54:57,474 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-07-04 22:54:57,483 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-04 22:54:57,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=12, Unknown=5, NotChecked=14, Total=42 [2021-07-04 22:54:57,496 INFO L87 Difference]: Start difference. First operand has 8 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 7 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-04 22:54:59,532 WARN L838 $PredicateComparison]: unable to prove that (and (= c_currentRoundingMode roundNearestTiesToEven) (forall ((v_ULTIMATE.start_main_~f~0_6 (_ FloatingPoint 8 24))) (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode v_ULTIMATE.start_main_~f~0_6)))) (or (fp.eq v_ULTIMATE.start_main_~f~0_6 .cse0) (fp.isNaN .cse0)))) (forall ((v_ULTIMATE.start_main_~f~0_6 (_ FloatingPoint 8 24))) (or (fp.isNaN v_ULTIMATE.start_main_~f~0_6) (fp.eq v_ULTIMATE.start_main_~f~0_6 ((_ to_fp 8 24) c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode v_ULTIMATE.start_main_~f~0_6)))))) is different from false [2021-07-04 22:55:20,345 WARN L205 SmtUtils]: Spent 19.27 s on a formula simplification. DAG size of input: 12 DAG size of output: 10 [2021-07-04 22:55:20,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-04 22:55:20,635 INFO L93 Difference]: Finished difference Result 11 states and 10 transitions. [2021-07-04 22:55:20,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-07-04 22:55:20,651 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-07-04 22:55:20,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-04 22:55:20,654 INFO L225 Difference]: With dead ends: 11 [2021-07-04 22:55:20,655 INFO L226 Difference]: Without dead ends: 0 [2021-07-04 22:55:20,656 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 36052.8ms TimeCoverageRelationStatistics Valid=17, Invalid=19, Unknown=6, NotChecked=30, Total=72 [2021-07-04 22:55:20,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-04 22:55:20,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-04 22:55:20,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-04 22:55:20,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-04 22:55:20,678 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2021-07-04 22:55:20,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-04 22:55:20,678 INFO L442 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-04 22:55:20,678 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 6 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-04 22:55:20,679 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-04 22:55:20,679 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-04 22:55:20,686 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-07-04 22:55:20,689 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-07-04 22:55:20,689 INFO L762 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-07-04 22:55:20,713 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-07-04 22:55:20,713 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-07-04 22:55:20,713 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 976) no Hoare annotation was computed. [2021-07-04 22:55:20,713 INFO L762 garLoopResultBuilder]: For program point L976(line 976) no Hoare annotation was computed. [2021-07-04 22:55:20,713 INFO L762 garLoopResultBuilder]: For program point L976-1(line 976) no Hoare annotation was computed. [2021-07-04 22:55:20,714 INFO L762 garLoopResultBuilder]: For program point L969(lines 969 977) no Hoare annotation was computed. [2021-07-04 22:55:20,727 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-07-04 22:55:20,914 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-07-04 22:55:20,914 WARN L182 nStatisticsGenerator]: total relevant statements: 0 [2021-07-04 22:55:20,920 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.07 10:55:20 BoogieIcfgContainer [2021-07-04 22:55:20,920 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-04 22:55:20,921 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-07-04 22:55:20,921 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-07-04 22:55:20,921 INFO L275 PluginConnector]: Witness Printer initialized [2021-07-04 22:55:20,921 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.07 10:54:33" (3/4) ... [2021-07-04 22:55:20,924 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-07-04 22:55:20,930 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-07-04 22:55:20,930 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-07-04 22:55:20,930 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-07-04 22:55:20,930 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-07-04 22:55:20,972 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-07-04 22:55:20,972 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-07-04 22:55:20,973 INFO L168 Benchmark]: Toolchain (without parser) took 48284.40 ms. Allocated memory was 52.4 MB in the beginning and 83.9 MB in the end (delta: 31.5 MB). Free memory was 28.0 MB in the beginning and 46.0 MB in the end (delta: -18.0 MB). Peak memory consumption was 12.9 MB. Max. memory is 16.1 GB. [2021-07-04 22:55:20,973 INFO L168 Benchmark]: CDTParser took 0.08 ms. Allocated memory is still 52.4 MB. Free memory is still 33.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-07-04 22:55:20,975 INFO L168 Benchmark]: CACSL2BoogieTranslator took 614.17 ms. Allocated memory was 52.4 MB in the beginning and 69.2 MB in the end (delta: 16.8 MB). Free memory was 27.9 MB in the beginning and 45.3 MB in the end (delta: -17.4 MB). Peak memory consumption was 17.4 MB. Max. memory is 16.1 GB. [2021-07-04 22:55:20,977 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.36 ms. Allocated memory is still 69.2 MB. Free memory was 45.3 MB in the beginning and 42.9 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-04 22:55:20,978 INFO L168 Benchmark]: Boogie Preprocessor took 29.33 ms. Allocated memory is still 69.2 MB. Free memory was 42.9 MB in the beginning and 41.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-04 22:55:20,978 INFO L168 Benchmark]: RCFGBuilder took 234.06 ms. Allocated memory is still 69.2 MB. Free memory was 41.6 MB in the beginning and 29.9 MB in the end (delta: 11.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-07-04 22:55:20,978 INFO L168 Benchmark]: TraceAbstraction took 47291.88 ms. Allocated memory was 69.2 MB in the beginning and 83.9 MB in the end (delta: 14.7 MB). Free memory was 29.5 MB in the beginning and 48.4 MB in the end (delta: -18.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-04 22:55:20,979 INFO L168 Benchmark]: Witness Printer took 51.72 ms. Allocated memory is still 83.9 MB. Free memory was 48.4 MB in the beginning and 46.0 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-04 22:55:20,984 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.08 ms. Allocated memory is still 52.4 MB. Free memory is still 33.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 614.17 ms. Allocated memory was 52.4 MB in the beginning and 69.2 MB in the end (delta: 16.8 MB). Free memory was 27.9 MB in the beginning and 45.3 MB in the end (delta: -17.4 MB). Peak memory consumption was 17.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 57.36 ms. Allocated memory is still 69.2 MB. Free memory was 45.3 MB in the beginning and 42.9 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 29.33 ms. Allocated memory is still 69.2 MB. Free memory was 42.9 MB in the beginning and 41.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 234.06 ms. Allocated memory is still 69.2 MB. Free memory was 41.6 MB in the beginning and 29.9 MB in the end (delta: 11.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 47291.88 ms. Allocated memory was 69.2 MB in the beginning and 83.9 MB in the end (delta: 14.7 MB). Free memory was 29.5 MB in the beginning and 48.4 MB in the end (delta: -18.9 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 51.72 ms. Allocated memory is still 83.9 MB. Free memory was 48.4 MB in the beginning and 46.0 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 976]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION CFG has 1 procedures, 8 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 47254.4ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 4.8ms, AutomataDifference: 23181.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 2.4ms, InitialAbstractionConstructionTime: 4.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 3 SDtfs, 6 SDslu, 4 SDs, 0 SdLazy, 2 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 284.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 36052.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred in iteration=0, InterpolantAutomatonStates: 4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 7.6ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 0 LocationsWithAnnotation, 0 PreInvPairs, 0 NumberOfFragments, 0 HoareAnnotationTreeSize, 0 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0ms HoareSimplificationTime, 0 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 20.2ms SsaConstructionTime, 243.1ms SatisfiabilityAnalysisTime, 23448.4ms InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 2 QuantifiedInterpolants, 78 SizeOfPredicates, 4 NumberOfNonLiveVariables, 24 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-07-04 22:55:21,033 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...