./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 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_1846f53c-633c-4ed7-aafb-8a97aa07d32c/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_1846f53c-633c-4ed7-aafb-8a97aa07d32c/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_1846f53c-633c-4ed7-aafb-8a97aa07d32c/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_1846f53c-633c-4ed7-aafb-8a97aa07d32c/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-to-double1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_1846f53c-633c-4ed7-aafb-8a97aa07d32c/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_1846f53c-633c-4ed7-aafb-8a97aa07d32c/bin/utaipan --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 Taipan --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=/tmp/vcloud-vcloud-master/worker/run_dir_1846f53c-633c-4ed7-aafb-8a97aa07d32c/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_1846f53c-633c-4ed7-aafb-8a97aa07d32c/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_1846f53c-633c-4ed7-aafb-8a97aa07d32c/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_1846f53c-633c-4ed7-aafb-8a97aa07d32c/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-to-double1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_1846f53c-633c-4ed7-aafb-8a97aa07d32c/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_1846f53c-633c-4ed7-aafb-8a97aa07d32c/bin/utaipan --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 Taipan --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 0.2.0-7b2dab5 [2020-12-09 07:02:15,718 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 07:02:15,726 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 07:02:15,754 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 07:02:15,755 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 07:02:15,756 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 07:02:15,758 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 07:02:15,760 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 07:02:15,762 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 07:02:15,764 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 07:02:15,765 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 07:02:15,766 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 07:02:15,767 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 07:02:15,768 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 07:02:15,769 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 07:02:15,770 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 07:02:15,770 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 07:02:15,771 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 07:02:15,773 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 07:02:15,775 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 07:02:15,776 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 07:02:15,777 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 07:02:15,778 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 07:02:15,779 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 07:02:15,781 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 07:02:15,782 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 07:02:15,782 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 07:02:15,783 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 07:02:15,783 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 07:02:15,784 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 07:02:15,784 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 07:02:15,785 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 07:02:15,785 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 07:02:15,786 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 07:02:15,787 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 07:02:15,787 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 07:02:15,787 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 07:02:15,787 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 07:02:15,788 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 07:02:15,788 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 07:02:15,789 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 07:02:15,789 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_1846f53c-633c-4ed7-aafb-8a97aa07d32c/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-12-09 07:02:15,811 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 07:02:15,812 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 07:02:15,812 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 07:02:15,812 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 07:02:15,812 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 07:02:15,813 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 07:02:15,813 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 07:02:15,813 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 07:02:15,813 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 07:02:15,813 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 07:02:15,813 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 07:02:15,813 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 07:02:15,814 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 07:02:15,814 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 07:02:15,814 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 07:02:15,815 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 07:02:15,815 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 07:02:15,815 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 07:02:15,815 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 07:02:15,815 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 07:02:15,815 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 07:02:15,815 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 07:02:15,815 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 07:02:15,815 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 07:02:15,816 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 07:02:15,816 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 07:02:15,816 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 07:02:15,816 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 07:02:15,816 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 07:02:15,816 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 07:02:15,816 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 07:02:15,817 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 07:02:15,817 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 07:02:15,817 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 07:02:15,817 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 07:02:15,817 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 07:02:15,817 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 07:02:15,818 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 07:02:15,818 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 07:02:15,818 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_1846f53c-633c-4ed7-aafb-8a97aa07d32c/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_1846f53c-633c-4ed7-aafb-8a97aa07d32c/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 750a1ab7397e44f2b5a951260f4479cbcd135f37 [2020-12-09 07:02:16,003 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 07:02:16,021 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 07:02:16,023 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 07:02:16,024 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 07:02:16,024 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 07:02:16,025 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_1846f53c-633c-4ed7-aafb-8a97aa07d32c/bin/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float-to-double1.i [2020-12-09 07:02:16,062 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1846f53c-633c-4ed7-aafb-8a97aa07d32c/bin/utaipan/data/39b6c223b/91f8772d0241430688799a3c7a348f2d/FLAG4993bd7f2 [2020-12-09 07:02:16,467 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 07:02:16,468 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_1846f53c-633c-4ed7-aafb-8a97aa07d32c/sv-benchmarks/c/floats-cbmc-regression/float-to-double1.i [2020-12-09 07:02:16,479 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1846f53c-633c-4ed7-aafb-8a97aa07d32c/bin/utaipan/data/39b6c223b/91f8772d0241430688799a3c7a348f2d/FLAG4993bd7f2 [2020-12-09 07:02:16,846 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_1846f53c-633c-4ed7-aafb-8a97aa07d32c/bin/utaipan/data/39b6c223b/91f8772d0241430688799a3c7a348f2d [2020-12-09 07:02:16,848 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 07:02:16,849 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 07:02:16,850 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 07:02:16,851 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 07:02:16,853 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 07:02:16,853 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:02:16" (1/1) ... [2020-12-09 07:02:16,855 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@287410a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:02:16, skipping insertion in model container [2020-12-09 07:02:16,855 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:02:16" (1/1) ... [2020-12-09 07:02:16,860 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 07:02:16,892 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 07:02:17,161 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:1710) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:234) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1402) 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:1081) 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:2343) 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:706) 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:2343) 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:707) 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:2343) 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:2343) 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:1570) 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:1046) 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:1424) 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:3213) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2293) 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) [2020-12-09 07:02:17,164 INFO L168 Benchmark]: Toolchain (without parser) took 313.58 ms. Allocated memory is still 90.2 MB. Free memory was 67.2 MB in the beginning and 55.7 MB in the end (delta: 11.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-12-09 07:02:17,165 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 69.2 MB. Free memory is still 44.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 07:02:17,165 INFO L168 Benchmark]: CACSL2BoogieTranslator took 312.07 ms. Allocated memory is still 90.2 MB. Free memory was 66.9 MB in the beginning and 55.7 MB in the end (delta: 11.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-12-09 07:02:17,166 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 69.2 MB. Free memory is still 44.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 312.07 ms. Allocated memory is still 90.2 MB. Free memory was 66.9 MB in the beginning and 55.7 MB in the end (delta: 11.2 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 0.2.0-7b2dab5 [2020-12-09 07:02:18,479 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 07:02:18,480 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 07:02:18,502 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 07:02:18,503 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 07:02:18,504 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 07:02:18,505 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 07:02:18,507 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 07:02:18,509 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 07:02:18,509 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 07:02:18,510 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 07:02:18,511 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 07:02:18,512 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 07:02:18,513 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 07:02:18,514 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 07:02:18,515 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 07:02:18,516 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 07:02:18,516 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 07:02:18,518 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 07:02:18,520 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 07:02:18,521 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 07:02:18,522 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 07:02:18,524 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 07:02:18,524 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 07:02:18,527 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 07:02:18,527 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 07:02:18,528 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 07:02:18,528 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 07:02:18,529 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 07:02:18,530 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 07:02:18,530 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 07:02:18,530 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 07:02:18,531 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 07:02:18,532 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 07:02:18,533 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 07:02:18,533 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 07:02:18,534 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 07:02:18,534 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 07:02:18,534 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 07:02:18,535 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 07:02:18,535 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 07:02:18,536 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_1846f53c-633c-4ed7-aafb-8a97aa07d32c/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-12-09 07:02:18,558 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 07:02:18,559 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 07:02:18,559 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 07:02:18,559 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 07:02:18,560 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 07:02:18,560 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 07:02:18,560 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 07:02:18,560 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 07:02:18,560 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 07:02:18,561 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 07:02:18,561 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 07:02:18,561 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 07:02:18,561 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 07:02:18,561 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 07:02:18,561 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 07:02:18,561 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 07:02:18,561 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 07:02:18,562 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-09 07:02:18,562 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-09 07:02:18,562 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 07:02:18,562 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 07:02:18,562 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 07:02:18,562 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 07:02:18,562 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 07:02:18,563 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-09 07:02:18,563 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 07:02:18,563 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 07:02:18,563 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 07:02:18,563 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 07:02:18,563 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 07:02:18,563 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-12-09 07:02:18,563 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2020-12-09 07:02:18,564 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 07:02:18,564 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 07:02:18,564 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 07:02:18,564 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:/tmp/vcloud-vcloud-master/worker/run_dir_1846f53c-633c-4ed7-aafb-8a97aa07d32c/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_1846f53c-633c-4ed7-aafb-8a97aa07d32c/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 750a1ab7397e44f2b5a951260f4479cbcd135f37 [2020-12-09 07:02:18,796 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 07:02:18,813 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 07:02:18,815 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 07:02:18,816 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 07:02:18,816 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 07:02:18,817 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_1846f53c-633c-4ed7-aafb-8a97aa07d32c/bin/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float-to-double1.i [2020-12-09 07:02:18,857 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1846f53c-633c-4ed7-aafb-8a97aa07d32c/bin/utaipan/data/fb0222a08/77f9a9287b204358988f10abbe3fb7b4/FLAG358dfe640 [2020-12-09 07:02:19,284 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 07:02:19,284 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_1846f53c-633c-4ed7-aafb-8a97aa07d32c/sv-benchmarks/c/floats-cbmc-regression/float-to-double1.i [2020-12-09 07:02:19,298 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_1846f53c-633c-4ed7-aafb-8a97aa07d32c/bin/utaipan/data/fb0222a08/77f9a9287b204358988f10abbe3fb7b4/FLAG358dfe640 [2020-12-09 07:02:19,307 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_1846f53c-633c-4ed7-aafb-8a97aa07d32c/bin/utaipan/data/fb0222a08/77f9a9287b204358988f10abbe3fb7b4 [2020-12-09 07:02:19,309 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 07:02:19,310 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 07:02:19,311 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 07:02:19,311 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 07:02:19,314 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 07:02:19,315 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:02:19" (1/1) ... [2020-12-09 07:02:19,317 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a4a26b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:02:19, skipping insertion in model container [2020-12-09 07:02:19,317 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:02:19" (1/1) ... [2020-12-09 07:02:19,323 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 07:02:19,362 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 07:02:19,698 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_1846f53c-633c-4ed7-aafb-8a97aa07d32c/sv-benchmarks/c/floats-cbmc-regression/float-to-double1.i[41018,41031] [2020-12-09 07:02:19,700 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 07:02:19,709 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 07:02:19,734 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_1846f53c-633c-4ed7-aafb-8a97aa07d32c/sv-benchmarks/c/floats-cbmc-regression/float-to-double1.i[41018,41031] [2020-12-09 07:02:19,734 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 07:02:19,915 INFO L208 MainTranslator]: Completed translation [2020-12-09 07:02:19,915 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:02:19 WrapperNode [2020-12-09 07:02:19,916 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 07:02:19,916 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 07:02:19,916 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 07:02:19,916 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 07:02:19,922 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:02:19" (1/1) ... [2020-12-09 07:02:19,938 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:02:19" (1/1) ... [2020-12-09 07:02:19,951 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 07:02:19,952 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 07:02:19,952 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 07:02:19,952 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 07:02:19,957 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:02:19" (1/1) ... [2020-12-09 07:02:19,958 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:02:19" (1/1) ... [2020-12-09 07:02:19,959 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:02:19" (1/1) ... [2020-12-09 07:02:19,959 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:02:19" (1/1) ... [2020-12-09 07:02:19,963 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:02:19" (1/1) ... [2020-12-09 07:02:19,964 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:02:19" (1/1) ... [2020-12-09 07:02:19,965 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:02:19" (1/1) ... [2020-12-09 07:02:19,967 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 07:02:19,967 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 07:02:19,968 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 07:02:19,968 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 07:02:19,968 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:02:19" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1846f53c-633c-4ed7-aafb-8a97aa07d32c/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 07:02:20,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-09 07:02:20,016 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 07:02:20,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 07:02:20,017 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 07:02:20,333 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 07:02:20,333 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2020-12-09 07:02:20,334 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:02:20 BoogieIcfgContainer [2020-12-09 07:02:20,334 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 07:02:20,335 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 07:02:20,335 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 07:02:20,337 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 07:02:20,338 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 07:02:19" (1/3) ... [2020-12-09 07:02:20,338 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f15722d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:02:20, skipping insertion in model container [2020-12-09 07:02:20,338 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:02:19" (2/3) ... [2020-12-09 07:02:20,338 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f15722d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:02:20, skipping insertion in model container [2020-12-09 07:02:20,338 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:02:20" (3/3) ... [2020-12-09 07:02:20,339 INFO L111 eAbstractionObserver]: Analyzing ICFG float-to-double1.i [2020-12-09 07:02:20,349 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 07:02:20,351 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-09 07:02:20,358 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-09 07:02:20,374 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 07:02:20,374 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 07:02:20,374 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 07:02:20,374 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 07:02:20,374 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 07:02:20,374 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 07:02:20,374 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 07:02:20,374 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 07:02:20,382 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states. [2020-12-09 07:02:20,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-09 07:02:20,385 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 07:02:20,386 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-12-09 07:02:20,386 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 07:02:20,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 07:02:20,390 INFO L82 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2020-12-09 07:02:20,398 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 07:02:20,398 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1464874997] [2020-12-09 07:02:20,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_1846f53c-633c-4ed7-aafb-8a97aa07d32c/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-12-09 07:02:20,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 07:02:20,558 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-09 07:02:20,561 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 07:02:26,281 WARN L197 SmtUtils]: Spent 1.82 s on a formula simplification that was a NOOP. DAG size: 6 [2020-12-09 07:02:28,307 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 07:02:38,377 WARN L838 $PredicateComparison]: unable to prove that (or (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.eq ULTIMATE.start_main_~f~0 .cse0)) (not (fp.isNaN .cse0))))) (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))))) is different from false [2020-12-09 07:02:40,401 WARN L860 $PredicateComparison]: unable to prove that (or (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.eq ULTIMATE.start_main_~f~0 .cse0)) (not (fp.isNaN .cse0))))) (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))))) is different from true [2020-12-09 07:02:40,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 07:02:40,402 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 07:02:40,403 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1464874997] [2020-12-09 07:02:40,403 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 07:02:40,403 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 07:02:40,404 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304225792] [2020-12-09 07:02:40,407 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-09 07:02:40,407 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 07:02:40,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-09 07:02:40,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=7, Unknown=2, NotChecked=4, Total=20 [2020-12-09 07:02:40,419 INFO L87 Difference]: Start difference. First operand 8 states. Second operand 5 states. [2020-12-09 07:02:46,950 WARN L197 SmtUtils]: Spent 4.08 s on a formula simplification that was a NOOP. DAG size: 9 [2020-12-09 07:02:50,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 07:02:50,114 INFO L93 Difference]: Finished difference Result 11 states and 10 transitions. [2020-12-09 07:02:50,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-09 07:02:50,126 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 4 [2020-12-09 07:02:50,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 07:02:50,130 INFO L225 Difference]: With dead ends: 11 [2020-12-09 07:02:50,130 INFO L226 Difference]: Without dead ends: 0 [2020-12-09 07:02:50,132 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.0s TimeCoverageRelationStatistics Valid=11, Invalid=11, Unknown=2, NotChecked=6, Total=30 [2020-12-09 07:02:50,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-09 07:02:50,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-09 07:02:50,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-09 07:02:50,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-09 07:02:50,147 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2020-12-09 07:02:50,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 07:02:50,147 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-09 07:02:50,147 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-09 07:02:50,147 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-09 07:02:50,147 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-09 07:02:50,348 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-09 07:02:50,354 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-09 07:02:50,362 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-09 07:02:50,362 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-09 07:02:50,362 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-09 07:02:50,363 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-09 07:02:50,363 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 976) no Hoare annotation was computed. [2020-12-09 07:02:50,363 INFO L262 CegarLoopResult]: For program point L976(line 976) no Hoare annotation was computed. [2020-12-09 07:02:50,364 INFO L262 CegarLoopResult]: For program point L976-1(line 976) no Hoare annotation was computed. [2020-12-09 07:02:50,364 INFO L262 CegarLoopResult]: For program point L969(lines 969 977) no Hoare annotation was computed. [2020-12-09 07:02:50,370 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 07:02:50 BoogieIcfgContainer [2020-12-09 07:02:50,370 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 07:02:50,371 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 07:02:50,371 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 07:02:50,371 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 07:02:50,371 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:02:20" (3/4) ... [2020-12-09 07:02:50,374 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-09 07:02:50,380 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-12-09 07:02:50,381 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-09 07:02:50,381 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 07:02:50,381 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 07:02:50,401 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_1846f53c-633c-4ed7-aafb-8a97aa07d32c/bin/utaipan/witness.graphml [2020-12-09 07:02:50,402 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 07:02:50,402 INFO L168 Benchmark]: Toolchain (without parser) took 31092.14 ms. Allocated memory was 56.6 MB in the beginning and 73.4 MB in the end (delta: 16.8 MB). Free memory was 34.4 MB in the beginning and 40.4 MB in the end (delta: -6.0 MB). Peak memory consumption was 12.2 MB. Max. memory is 16.1 GB. [2020-12-09 07:02:50,403 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 56.6 MB. Free memory was 39.0 MB in the beginning and 39.0 MB in the end (delta: 73.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 07:02:50,403 INFO L168 Benchmark]: CACSL2BoogieTranslator took 605.09 ms. Allocated memory was 56.6 MB in the beginning and 73.4 MB in the end (delta: 16.8 MB). Free memory was 34.1 MB in the beginning and 53.7 MB in the end (delta: -19.6 MB). Peak memory consumption was 27.5 MB. Max. memory is 16.1 GB. [2020-12-09 07:02:50,404 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.96 ms. Allocated memory is still 73.4 MB. Free memory was 53.7 MB in the beginning and 51.6 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 07:02:50,404 INFO L168 Benchmark]: Boogie Preprocessor took 15.20 ms. Allocated memory is still 73.4 MB. Free memory was 51.6 MB in the beginning and 50.7 MB in the end (delta: 825.4 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 07:02:50,405 INFO L168 Benchmark]: RCFGBuilder took 366.95 ms. Allocated memory is still 73.4 MB. Free memory was 50.1 MB in the beginning and 38.8 MB in the end (delta: 11.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-09 07:02:50,405 INFO L168 Benchmark]: TraceAbstraction took 30034.76 ms. Allocated memory is still 73.4 MB. Free memory was 38.2 MB in the beginning and 42.5 MB in the end (delta: -4.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 07:02:50,405 INFO L168 Benchmark]: Witness Printer took 30.92 ms. Allocated memory is still 73.4 MB. Free memory was 42.5 MB in the beginning and 40.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 07:02:50,408 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 56.6 MB. Free memory was 39.0 MB in the beginning and 39.0 MB in the end (delta: 73.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 605.09 ms. Allocated memory was 56.6 MB in the beginning and 73.4 MB in the end (delta: 16.8 MB). Free memory was 34.1 MB in the beginning and 53.7 MB in the end (delta: -19.6 MB). Peak memory consumption was 27.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 34.96 ms. Allocated memory is still 73.4 MB. Free memory was 53.7 MB in the beginning and 51.6 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 15.20 ms. Allocated memory is still 73.4 MB. Free memory was 51.6 MB in the beginning and 50.7 MB in the end (delta: 825.4 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 366.95 ms. Allocated memory is still 73.4 MB. Free memory was 50.1 MB in the beginning and 38.8 MB in the end (delta: 11.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 30034.76 ms. Allocated memory is still 73.4 MB. Free memory was 38.2 MB in the beginning and 42.5 MB in the end (delta: -4.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 30.92 ms. Allocated memory is still 73.4 MB. Free memory was 42.5 MB in the beginning and 40.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 976]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 29.9s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 9.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 3 SDtfs, 7 SDslu, 1 SDs, 0 SdLazy, 2 SolverSat, 0 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 3.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 0 LocationsWithAnnotation, 0 PreInvPairs, 0 NumberOfFragments, 0 HoareAnnotationTreeSize, 0 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 0 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 19.8s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 3 ConstructedInterpolants, 1 QuantifiedInterpolants, 123 SizeOfPredicates, 4 NumberOfNonLiveVariables, 24 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 RESULT: Ultimate proved your program to be correct! Received shutdown request...