./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-esbmc-regression/fmax_true-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_e5ae1d3c-4ce5-41dd-85f8-8522100638b2/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_e5ae1d3c-4ce5-41dd-85f8-8522100638b2/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_e5ae1d3c-4ce5-41dd-85f8-8522100638b2/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_e5ae1d3c-4ce5-41dd-85f8-8522100638b2/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-esbmc-regression/fmax_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_e5ae1d3c-4ce5-41dd-85f8-8522100638b2/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_e5ae1d3c-4ce5-41dd-85f8-8522100638b2/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 53b46124efc39d3bb9b74a9aa7bf27db90fdc5ac ............................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_e5ae1d3c-4ce5-41dd-85f8-8522100638b2/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_e5ae1d3c-4ce5-41dd-85f8-8522100638b2/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_e5ae1d3c-4ce5-41dd-85f8-8522100638b2/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_e5ae1d3c-4ce5-41dd-85f8-8522100638b2/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-esbmc-regression/fmax_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_e5ae1d3c-4ce5-41dd-85f8-8522100638b2/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_e5ae1d3c-4ce5-41dd-85f8-8522100638b2/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 53b46124efc39d3bb9b74a9aa7bf27db90fdc5ac ........................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 05:22:56,956 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 05:22:56,957 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 05:22:56,965 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 05:22:56,965 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 05:22:56,966 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 05:22:56,967 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 05:22:56,969 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 05:22:56,970 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 05:22:56,970 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 05:22:56,971 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 05:22:56,971 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 05:22:56,972 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 05:22:56,973 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 05:22:56,973 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 05:22:56,974 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 05:22:56,975 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 05:22:56,976 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 05:22:56,978 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 05:22:56,979 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 05:22:56,980 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 05:22:56,981 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 05:22:56,983 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 05:22:56,983 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 05:22:56,983 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 05:22:56,984 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 05:22:56,985 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 05:22:56,986 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 05:22:56,986 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 05:22:56,987 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 05:22:56,987 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 05:22:56,988 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 05:22:56,989 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 05:22:56,989 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 05:22:56,990 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 05:22:56,990 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 05:22:56,990 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_e5ae1d3c-4ce5-41dd-85f8-8522100638b2/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-23 05:22:57,001 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 05:22:57,002 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 05:22:57,002 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 05:22:57,002 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 05:22:57,002 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-23 05:22:57,003 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-23 05:22:57,003 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-23 05:22:57,003 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-23 05:22:57,003 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-23 05:22:57,003 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-23 05:22:57,003 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-23 05:22:57,003 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-23 05:22:57,004 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-23 05:22:57,005 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 05:22:57,006 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 05:22:57,006 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 05:22:57,006 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 05:22:57,006 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 05:22:57,006 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 05:22:57,006 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 05:22:57,007 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 05:22:57,007 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 05:22:57,007 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 05:22:57,007 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 05:22:57,007 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 05:22:57,007 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 05:22:57,007 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 05:22:57,008 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 05:22:57,008 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 05:22:57,008 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 05:22:57,008 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 05:22:57,008 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 05:22:57,008 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 05:22:57,008 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-23 05:22:57,009 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 05:22:57,009 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 05:22:57,009 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-23 05:22:57,009 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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/working_dir_e5ae1d3c-4ce5-41dd-85f8-8522100638b2/bin-2019/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(__VERIFIER_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 -> 53b46124efc39d3bb9b74a9aa7bf27db90fdc5ac [2018-11-23 05:22:57,034 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 05:22:57,044 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 05:22:57,046 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 05:22:57,048 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 05:22:57,048 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 05:22:57,049 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_e5ae1d3c-4ce5-41dd-85f8-8522100638b2/bin-2019/utaipan/../../sv-benchmarks/c/floats-esbmc-regression/fmax_true-unreach-call.i [2018-11-23 05:22:57,094 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e5ae1d3c-4ce5-41dd-85f8-8522100638b2/bin-2019/utaipan/data/684d7a2b4/5ec3641f9f7242e28997b3b5ead04b68/FLAG0584ad64d [2018-11-23 05:22:57,459 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 05:22:57,460 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_e5ae1d3c-4ce5-41dd-85f8-8522100638b2/sv-benchmarks/c/floats-esbmc-regression/fmax_true-unreach-call.i [2018-11-23 05:22:57,471 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e5ae1d3c-4ce5-41dd-85f8-8522100638b2/bin-2019/utaipan/data/684d7a2b4/5ec3641f9f7242e28997b3b5ead04b68/FLAG0584ad64d [2018-11-23 05:22:57,483 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_e5ae1d3c-4ce5-41dd-85f8-8522100638b2/bin-2019/utaipan/data/684d7a2b4/5ec3641f9f7242e28997b3b5ead04b68 [2018-11-23 05:22:57,486 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 05:22:57,487 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 05:22:57,488 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 05:22:57,488 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 05:22:57,492 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 05:22:57,493 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:22:57" (1/1) ... [2018-11-23 05:22:57,495 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25240d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:22:57, skipping insertion in model container [2018-11-23 05:22:57,495 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:22:57" (1/1) ... [2018-11-23 05:22:57,505 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 05:22:57,540 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 05:22:57,832 FATAL L292 ToolchainWalker]: 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: fmax at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherBinaryFloatOperation(IntegerTranslation.java:843) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.StandardFunctionHandler.handleBinaryFloatFunction(StandardFunctionHandler.java:1334) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:207) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1310) 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:664) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.result.ExpressionResultTransformer.dispatchDecaySwitchToRValueFunctionArgument(ExpressionResultTransformer.java:113) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionCallGivenNameAndArguments(FunctionHandler.java:678) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionCallExpression(FunctionHandler.java:508) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1317) 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:1261) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:220) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:962) 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:371) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1332) 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:3436) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2231) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:538) 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:190) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:117) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:95) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:129) 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$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-11-23 05:22:57,834 INFO L168 Benchmark]: Toolchain (without parser) took 347.39 ms. Allocated memory is still 1.0 GB. Free memory was 950.0 MB in the beginning and 936.5 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-11-23 05:22:57,835 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 05:22:57,836 INFO L168 Benchmark]: CACSL2BoogieTranslator took 345.25 ms. Allocated memory is still 1.0 GB. Free memory was 950.0 MB in the beginning and 936.5 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-11-23 05:22:57,837 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 345.25 ms. Allocated memory is still 1.0 GB. Free memory was 950.0 MB in the beginning and 936.5 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fmax de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: fmax: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherBinaryFloatOperation(IntegerTranslation.java:843) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-aa41828 [2018-11-23 05:22:59,152 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 05:22:59,153 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 05:22:59,163 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 05:22:59,163 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 05:22:59,164 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 05:22:59,165 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 05:22:59,166 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 05:22:59,167 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 05:22:59,168 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 05:22:59,169 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 05:22:59,170 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 05:22:59,170 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 05:22:59,171 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 05:22:59,172 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 05:22:59,173 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 05:22:59,174 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 05:22:59,175 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 05:22:59,176 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 05:22:59,178 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 05:22:59,178 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 05:22:59,179 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 05:22:59,181 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 05:22:59,182 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 05:22:59,182 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 05:22:59,183 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 05:22:59,183 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 05:22:59,184 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 05:22:59,185 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 05:22:59,186 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 05:22:59,186 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 05:22:59,187 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 05:22:59,187 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 05:22:59,187 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 05:22:59,188 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 05:22:59,189 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 05:22:59,189 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_e5ae1d3c-4ce5-41dd-85f8-8522100638b2/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-23 05:22:59,207 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 05:22:59,207 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 05:22:59,208 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 05:22:59,208 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 05:22:59,208 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-23 05:22:59,209 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-23 05:22:59,209 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-23 05:22:59,209 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-23 05:22:59,209 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-23 05:22:59,209 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-23 05:22:59,210 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 05:22:59,210 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 05:22:59,210 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 05:22:59,211 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 05:22:59,211 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 05:22:59,211 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 05:22:59,211 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 05:22:59,211 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-23 05:22:59,211 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-23 05:22:59,211 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 05:22:59,212 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 05:22:59,212 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 05:22:59,212 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 05:22:59,212 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 05:22:59,212 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 05:22:59,212 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 05:22:59,213 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 05:22:59,213 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 05:22:59,213 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 05:22:59,213 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 05:22:59,213 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 05:22:59,213 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-23 05:22:59,214 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 05:22:59,214 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-23 05:22:59,214 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-23 05:22:59,214 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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/working_dir_e5ae1d3c-4ce5-41dd-85f8-8522100638b2/bin-2019/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(__VERIFIER_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 -> 53b46124efc39d3bb9b74a9aa7bf27db90fdc5ac [2018-11-23 05:22:59,249 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 05:22:59,260 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 05:22:59,263 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 05:22:59,265 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 05:22:59,265 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 05:22:59,266 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_e5ae1d3c-4ce5-41dd-85f8-8522100638b2/bin-2019/utaipan/../../sv-benchmarks/c/floats-esbmc-regression/fmax_true-unreach-call.i [2018-11-23 05:22:59,305 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e5ae1d3c-4ce5-41dd-85f8-8522100638b2/bin-2019/utaipan/data/c93d93b9d/e9153c8eb4794fb3ae4d9a41f65e810c/FLAG438856b24 [2018-11-23 05:22:59,694 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 05:22:59,695 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_e5ae1d3c-4ce5-41dd-85f8-8522100638b2/sv-benchmarks/c/floats-esbmc-regression/fmax_true-unreach-call.i [2018-11-23 05:22:59,704 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e5ae1d3c-4ce5-41dd-85f8-8522100638b2/bin-2019/utaipan/data/c93d93b9d/e9153c8eb4794fb3ae4d9a41f65e810c/FLAG438856b24 [2018-11-23 05:23:00,072 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_e5ae1d3c-4ce5-41dd-85f8-8522100638b2/bin-2019/utaipan/data/c93d93b9d/e9153c8eb4794fb3ae4d9a41f65e810c [2018-11-23 05:23:00,076 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 05:23:00,077 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 05:23:00,078 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 05:23:00,078 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 05:23:00,082 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 05:23:00,083 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:23:00" (1/1) ... [2018-11-23 05:23:00,085 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e0055c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:23:00, skipping insertion in model container [2018-11-23 05:23:00,085 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:23:00" (1/1) ... [2018-11-23 05:23:00,094 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 05:23:00,129 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 05:23:00,522 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 05:23:00,527 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 05:23:00,557 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 05:23:00,758 INFO L195 MainTranslator]: Completed translation [2018-11-23 05:23:00,758 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:23:00 WrapperNode [2018-11-23 05:23:00,759 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 05:23:00,759 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 05:23:00,759 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 05:23:00,759 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 05:23:00,764 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:23:00" (1/1) ... [2018-11-23 05:23:00,779 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:23:00" (1/1) ... [2018-11-23 05:23:00,787 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 05:23:00,787 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 05:23:00,788 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 05:23:00,788 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 05:23:00,793 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:23:00" (1/1) ... [2018-11-23 05:23:00,793 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:23:00" (1/1) ... [2018-11-23 05:23:00,794 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:23:00" (1/1) ... [2018-11-23 05:23:00,794 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:23:00" (1/1) ... [2018-11-23 05:23:00,798 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:23:00" (1/1) ... [2018-11-23 05:23:00,799 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:23:00" (1/1) ... [2018-11-23 05:23:00,800 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:23:00" (1/1) ... [2018-11-23 05:23:00,801 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 05:23:00,801 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 05:23:00,801 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 05:23:00,802 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 05:23:00,802 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:23:00" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e5ae1d3c-4ce5-41dd-85f8-8522100638b2/bin-2019/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 [2018-11-23 05:23:00,883 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-23 05:23:00,884 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-23 05:23:00,884 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 05:23:00,884 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 05:23:00,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 05:23:00,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 05:23:00,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 05:23:00,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 05:23:00,975 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 05:23:00,975 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-23 05:23:00,976 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:23:00 BoogieIcfgContainer [2018-11-23 05:23:00,976 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 05:23:00,976 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 05:23:00,977 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 05:23:00,978 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 05:23:00,979 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 05:23:00" (1/3) ... [2018-11-23 05:23:00,979 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18d4dfe1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:23:00, skipping insertion in model container [2018-11-23 05:23:00,979 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:23:00" (2/3) ... [2018-11-23 05:23:00,980 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18d4dfe1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:23:00, skipping insertion in model container [2018-11-23 05:23:00,980 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:23:00" (3/3) ... [2018-11-23 05:23:00,981 INFO L112 eAbstractionObserver]: Analyzing ICFG fmax_true-unreach-call.i [2018-11-23 05:23:00,991 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 05:23:00,998 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 05:23:01,012 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 05:23:01,036 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 05:23:01,036 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 05:23:01,036 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 05:23:01,036 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 05:23:01,037 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 05:23:01,037 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 05:23:01,037 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 05:23:01,037 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 05:23:01,037 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 05:23:01,049 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2018-11-23 05:23:01,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-11-23 05:23:01,053 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 05:23:01,054 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 05:23:01,056 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 05:23:01,060 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 05:23:01,060 INFO L82 PathProgramCache]: Analyzing trace with hash -688732479, now seen corresponding path program 1 times [2018-11-23 05:23:01,063 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-23 05:23:01,064 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e5ae1d3c-4ce5-41dd-85f8-8522100638b2/bin-2019/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 [2018-11-23 05:23:01,070 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 05:23:01,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 05:23:01,102 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 05:23:01,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 05:23:01,179 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 05:23:01,186 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 05:23:01,186 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-23 05:23:01,190 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-23 05:23:01,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-23 05:23:01,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-23 05:23:01,200 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 4 states. [2018-11-23 05:23:01,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 05:23:01,251 INFO L93 Difference]: Finished difference Result 29 states and 38 transitions. [2018-11-23 05:23:01,252 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-23 05:23:01,252 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2018-11-23 05:23:01,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 05:23:01,257 INFO L225 Difference]: With dead ends: 29 [2018-11-23 05:23:01,257 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 05:23:01,259 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-23 05:23:01,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 05:23:01,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 05:23:01,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 05:23:01,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 05:23:01,276 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2018-11-23 05:23:01,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 05:23:01,276 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 05:23:01,276 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-23 05:23:01,276 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 05:23:01,276 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 05:23:01,279 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-23 05:23:01,323 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-23 05:23:01,323 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-23 05:23:01,323 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-23 05:23:01,323 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-23 05:23:01,323 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-23 05:23:01,323 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-23 05:23:01,324 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 869 875) the Hoare annotation is: true [2018-11-23 05:23:01,324 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 869 875) no Hoare annotation was computed. [2018-11-23 05:23:01,324 INFO L451 ceAbstractionStarter]: At program point L873(line 873) the Hoare annotation is: true [2018-11-23 05:23:01,324 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 869 875) no Hoare annotation was computed. [2018-11-23 05:23:01,324 INFO L451 ceAbstractionStarter]: At program point L872(line 872) the Hoare annotation is: true [2018-11-23 05:23:01,324 INFO L451 ceAbstractionStarter]: At program point L871(line 871) the Hoare annotation is: true [2018-11-23 05:23:01,324 INFO L448 ceAbstractionStarter]: For program point L867-3(line 867) no Hoare annotation was computed. [2018-11-23 05:23:01,324 INFO L451 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(line 867) the Hoare annotation is: true [2018-11-23 05:23:01,325 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(line 867) no Hoare annotation was computed. [2018-11-23 05:23:01,325 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 867) no Hoare annotation was computed. [2018-11-23 05:23:01,325 INFO L448 ceAbstractionStarter]: For program point L867(line 867) no Hoare annotation was computed. [2018-11-23 05:23:01,325 INFO L448 ceAbstractionStarter]: For program point L867-1(line 867) no Hoare annotation was computed. [2018-11-23 05:23:01,327 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 05:23:01 BoogieIcfgContainer [2018-11-23 05:23:01,327 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 05:23:01,327 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 05:23:01,328 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 05:23:01,328 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 05:23:01,328 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:23:00" (3/4) ... [2018-11-23 05:23:01,331 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 05:23:01,336 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-23 05:23:01,336 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-23 05:23:01,337 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-11-23 05:23:01,339 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-11-23 05:23:01,340 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-23 05:23:01,340 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-23 05:23:01,369 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_e5ae1d3c-4ce5-41dd-85f8-8522100638b2/bin-2019/utaipan/witness.graphml [2018-11-23 05:23:01,369 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 05:23:01,370 INFO L168 Benchmark]: Toolchain (without parser) took 1293.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 943.3 MB in the beginning and 1.1 GB in the end (delta: -139.9 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 05:23:01,371 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 05:23:01,371 INFO L168 Benchmark]: CACSL2BoogieTranslator took 680.85 ms. Allocated memory is still 1.0 GB. Free memory was 943.3 MB in the beginning and 830.5 MB in the end (delta: 112.8 MB). Peak memory consumption was 112.8 MB. Max. memory is 11.5 GB. [2018-11-23 05:23:01,372 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.10 ms. Allocated memory is still 1.0 GB. Free memory was 830.5 MB in the beginning and 825.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-23 05:23:01,372 INFO L168 Benchmark]: Boogie Preprocessor took 13.68 ms. Allocated memory is still 1.0 GB. Free memory is still 825.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 05:23:01,373 INFO L168 Benchmark]: RCFGBuilder took 174.67 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 825.2 MB in the beginning and 1.1 GB in the end (delta: -291.5 MB). Peak memory consumption was 15.8 MB. Max. memory is 11.5 GB. [2018-11-23 05:23:01,373 INFO L168 Benchmark]: TraceAbstraction took 350.64 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 33.5 MB). Peak memory consumption was 33.5 MB. Max. memory is 11.5 GB. [2018-11-23 05:23:01,373 INFO L168 Benchmark]: Witness Printer took 41.98 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 05:23:01,375 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 680.85 ms. Allocated memory is still 1.0 GB. Free memory was 943.3 MB in the beginning and 830.5 MB in the end (delta: 112.8 MB). Peak memory consumption was 112.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 28.10 ms. Allocated memory is still 1.0 GB. Free memory was 830.5 MB in the beginning and 825.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 13.68 ms. Allocated memory is still 1.0 GB. Free memory is still 825.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 174.67 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 825.2 MB in the beginning and 1.1 GB in the end (delta: -291.5 MB). Peak memory consumption was 15.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 350.64 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 33.5 MB). Peak memory consumption was 33.5 MB. Max. memory is 11.5 GB. * Witness Printer took 41.98 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 867]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 18 locations, 1 error locations. SAFE Result, 0.2s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 12 SDtfs, 5 SDslu, 18 SDs, 0 SdLazy, 14 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 14 PreInvPairs, 17 NumberOfFragments, 8 HoareAnnotationTreeSize, 14 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 105 SizeOfPredicates, 2 NumberOfNonLiveVariables, 16 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...