./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float-rounding1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_c57c3c2a-c152-45fb-906b-7e333df442c8/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_c57c3c2a-c152-45fb-906b-7e333df442c8/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c57c3c2a-c152-45fb-906b-7e333df442c8/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c57c3c2a-c152-45fb-906b-7e333df442c8/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-rounding1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_c57c3c2a-c152-45fb-906b-7e333df442c8/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c57c3c2a-c152-45fb-906b-7e333df442c8/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 91c18909fa64fb894260d901851992225c0131b1 ....................................................................................................................................................................... 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_c57c3c2a-c152-45fb-906b-7e333df442c8/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_c57c3c2a-c152-45fb-906b-7e333df442c8/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c57c3c2a-c152-45fb-906b-7e333df442c8/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c57c3c2a-c152-45fb-906b-7e333df442c8/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-rounding1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_c57c3c2a-c152-45fb-906b-7e333df442c8/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c57c3c2a-c152-45fb-906b-7e333df442c8/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 91c18909fa64fb894260d901851992225c0131b1 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 03:11:47,794 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 03:11:47,825 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 03:11:47,882 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 03:11:47,885 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 03:11:47,890 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 03:11:47,894 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 03:11:47,901 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 03:11:47,904 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 03:11:47,910 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 03:11:47,911 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 03:11:47,913 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 03:11:47,914 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 03:11:47,917 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 03:11:47,919 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 03:11:47,921 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 03:11:47,922 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 03:11:47,924 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 03:11:47,930 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 03:11:47,938 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 03:11:47,942 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 03:11:47,943 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 03:11:47,945 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 03:11:47,946 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 03:11:47,956 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 03:11:47,957 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 03:11:47,957 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 03:11:47,960 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 03:11:47,960 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 03:11:47,961 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 03:11:47,962 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 03:11:47,963 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 03:11:47,965 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 03:11:47,967 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 03:11:47,968 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 03:11:47,969 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 03:11:47,969 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 03:11:47,970 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 03:11:47,970 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 03:11:47,971 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 03:11:47,972 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 03:11:47,974 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c57c3c2a-c152-45fb-906b-7e333df442c8/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-30 03:11:48,018 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 03:11:48,018 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 03:11:48,020 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-30 03:11:48,020 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-30 03:11:48,020 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-30 03:11:48,020 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-30 03:11:48,021 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-30 03:11:48,021 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-30 03:11:48,021 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-30 03:11:48,021 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-30 03:11:48,022 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-30 03:11:48,023 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-30 03:11:48,023 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-30 03:11:48,023 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-30 03:11:48,023 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-30 03:11:48,024 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 03:11:48,024 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 03:11:48,025 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 03:11:48,025 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 03:11:48,025 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 03:11:48,025 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 03:11:48,025 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 03:11:48,026 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 03:11:48,026 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-30 03:11:48,026 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 03:11:48,026 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 03:11:48,027 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 03:11:48,027 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 03:11:48,027 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 03:11:48,027 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 03:11:48,028 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 03:11:48,028 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 03:11:48,028 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 03:11:48,028 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 03:11:48,029 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 03:11:48,029 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-30 03:11:48,029 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 03:11:48,029 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 03:11:48,029 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 03:11:48,030 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 03:11:48,030 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_c57c3c2a-c152-45fb-906b-7e333df442c8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_c57c3c2a-c152-45fb-906b-7e333df442c8/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 91c18909fa64fb894260d901851992225c0131b1 [2020-11-30 03:11:48,321 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 03:11:48,344 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 03:11:48,347 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 03:11:48,348 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 03:11:48,349 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 03:11:48,350 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c57c3c2a-c152-45fb-906b-7e333df442c8/bin/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float-rounding1.i [2020-11-30 03:11:48,416 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c57c3c2a-c152-45fb-906b-7e333df442c8/bin/utaipan/data/09c079f80/615e6b92e4d54d12a3be25b5d8aff625/FLAGe85d9f7a5 [2020-11-30 03:11:48,998 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 03:11:48,998 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c57c3c2a-c152-45fb-906b-7e333df442c8/sv-benchmarks/c/floats-cbmc-regression/float-rounding1.i [2020-11-30 03:11:49,017 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c57c3c2a-c152-45fb-906b-7e333df442c8/bin/utaipan/data/09c079f80/615e6b92e4d54d12a3be25b5d8aff625/FLAGe85d9f7a5 [2020-11-30 03:11:49,261 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c57c3c2a-c152-45fb-906b-7e333df442c8/bin/utaipan/data/09c079f80/615e6b92e4d54d12a3be25b5d8aff625 [2020-11-30 03:11:49,263 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 03:11:49,265 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 03:11:49,267 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 03:11:49,267 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 03:11:49,271 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 03:11:49,271 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 03:11:49" (1/1) ... [2020-11-30 03:11:49,274 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@155946e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:11:49, skipping insertion in model container [2020-11-30 03:11:49,274 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 03:11:49" (1/1) ... [2020-11-30 03:11:49,282 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 03:11:49,333 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 03:11:49,923 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.UnsupportedOperationException: fesetround not supported in non-bitprecise translation at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructBuiltinFesetround(IntegerTranslation.java:959) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.handleBuiltinFesetround(StandardFunctionHandler.java:1382) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:217) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1401) 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:1352) 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:1045) 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:1423) 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:3209) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2292) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:579) 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) [2020-11-30 03:11:49,930 INFO L168 Benchmark]: Toolchain (without parser) took 663.02 ms. Allocated memory is still 121.6 MB. Free memory was 90.5 MB in the beginning and 98.1 MB in the end (delta: -7.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-30 03:11:49,933 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 86.0 MB. Free memory was 43.9 MB in the beginning and 43.8 MB in the end (delta: 40.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 03:11:49,936 INFO L168 Benchmark]: CACSL2BoogieTranslator took 660.15 ms. Allocated memory is still 121.6 MB. Free memory was 90.5 MB in the beginning and 98.1 MB in the end (delta: -7.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-30 03:11:49,939 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 86.0 MB. Free memory was 43.9 MB in the beginning and 43.8 MB in the end (delta: 40.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 660.15 ms. Allocated memory is still 121.6 MB. Free memory was 90.5 MB in the beginning and 98.1 MB in the end (delta: -7.6 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: fesetround not supported in non-bitprecise translation de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: fesetround not supported in non-bitprecise translation: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructBuiltinFesetround(IntegerTranslation.java:959) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-a4ecdab [2020-11-30 03:11:52,531 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 03:11:52,534 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 03:11:52,595 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 03:11:52,595 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 03:11:52,601 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 03:11:52,603 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 03:11:52,608 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 03:11:52,612 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 03:11:52,618 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 03:11:52,620 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 03:11:52,626 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 03:11:52,627 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 03:11:52,633 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 03:11:52,635 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 03:11:52,638 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 03:11:52,639 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 03:11:52,644 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 03:11:52,647 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 03:11:52,653 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 03:11:52,657 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 03:11:52,660 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 03:11:52,661 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 03:11:52,664 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 03:11:52,673 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 03:11:52,676 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 03:11:52,676 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 03:11:52,679 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 03:11:52,679 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 03:11:52,681 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 03:11:52,681 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 03:11:52,682 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 03:11:52,684 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 03:11:52,685 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 03:11:52,686 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 03:11:52,686 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 03:11:52,687 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 03:11:52,687 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 03:11:52,688 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 03:11:52,690 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 03:11:52,691 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 03:11:52,692 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c57c3c2a-c152-45fb-906b-7e333df442c8/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-11-30 03:11:52,736 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 03:11:52,737 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 03:11:52,739 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-30 03:11:52,740 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-30 03:11:52,740 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-30 03:11:52,740 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-30 03:11:52,740 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-30 03:11:52,741 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-30 03:11:52,741 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-30 03:11:52,742 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 03:11:52,743 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 03:11:52,744 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 03:11:52,744 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 03:11:52,744 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 03:11:52,744 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 03:11:52,745 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 03:11:52,745 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-30 03:11:52,745 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-30 03:11:52,745 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-30 03:11:52,745 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 03:11:52,746 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 03:11:52,746 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 03:11:52,746 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 03:11:52,746 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 03:11:52,747 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 03:11:52,747 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 03:11:52,747 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 03:11:52,747 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 03:11:52,748 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 03:11:52,748 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 03:11:52,748 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 03:11:52,748 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-30 03:11:52,748 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-30 03:11:52,749 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 03:11:52,749 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 03:11:52,749 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 03:11:52,750 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_c57c3c2a-c152-45fb-906b-7e333df442c8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_c57c3c2a-c152-45fb-906b-7e333df442c8/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 91c18909fa64fb894260d901851992225c0131b1 [2020-11-30 03:11:53,170 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 03:11:53,200 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 03:11:53,202 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 03:11:53,203 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 03:11:53,204 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 03:11:53,205 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c57c3c2a-c152-45fb-906b-7e333df442c8/bin/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float-rounding1.i [2020-11-30 03:11:53,288 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c57c3c2a-c152-45fb-906b-7e333df442c8/bin/utaipan/data/859d7686c/637475fa080c4dfdab95d25d11901777/FLAG7c114d2c5 [2020-11-30 03:11:53,952 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 03:11:53,953 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c57c3c2a-c152-45fb-906b-7e333df442c8/sv-benchmarks/c/floats-cbmc-regression/float-rounding1.i [2020-11-30 03:11:53,974 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c57c3c2a-c152-45fb-906b-7e333df442c8/bin/utaipan/data/859d7686c/637475fa080c4dfdab95d25d11901777/FLAG7c114d2c5 [2020-11-30 03:11:54,193 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c57c3c2a-c152-45fb-906b-7e333df442c8/bin/utaipan/data/859d7686c/637475fa080c4dfdab95d25d11901777 [2020-11-30 03:11:54,196 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 03:11:54,198 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 03:11:54,202 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 03:11:54,202 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 03:11:54,206 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 03:11:54,208 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 03:11:54" (1/1) ... [2020-11-30 03:11:54,210 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@164063d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:11:54, skipping insertion in model container [2020-11-30 03:11:54,211 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 03:11:54" (1/1) ... [2020-11-30 03:11:54,224 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 03:11:54,290 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 03:11:54,972 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 03:11:54,990 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 03:11:55,044 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 03:11:55,503 INFO L208 MainTranslator]: Completed translation [2020-11-30 03:11:55,504 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:11:55 WrapperNode [2020-11-30 03:11:55,504 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 03:11:55,505 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 03:11:55,506 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 03:11:55,506 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 03:11:55,514 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:11:55" (1/1) ... [2020-11-30 03:11:55,549 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:11:55" (1/1) ... [2020-11-30 03:11:55,600 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 03:11:55,601 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 03:11:55,602 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 03:11:55,602 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 03:11:55,611 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:11:55" (1/1) ... [2020-11-30 03:11:55,611 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:11:55" (1/1) ... [2020-11-30 03:11:55,625 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:11:55" (1/1) ... [2020-11-30 03:11:55,626 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:11:55" (1/1) ... [2020-11-30 03:11:55,638 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:11:55" (1/1) ... [2020-11-30 03:11:55,648 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:11:55" (1/1) ... [2020-11-30 03:11:55,652 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:11:55" (1/1) ... [2020-11-30 03:11:55,656 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 03:11:55,663 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 03:11:55,664 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 03:11:55,665 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 03:11:55,666 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:11:55" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c57c3c2a-c152-45fb-906b-7e333df442c8/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 [2020-11-30 03:11:55,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-30 03:11:55,745 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 03:11:55,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 03:11:55,747 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 03:11:56,430 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 03:11:56,430 INFO L298 CfgBuilder]: Removed 28 assume(true) statements. [2020-11-30 03:11:56,431 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 03:11:56 BoogieIcfgContainer [2020-11-30 03:11:56,432 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 03:11:56,433 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 03:11:56,434 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 03:11:56,437 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 03:11:56,437 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 03:11:54" (1/3) ... [2020-11-30 03:11:56,438 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72c0cf02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 03:11:56, skipping insertion in model container [2020-11-30 03:11:56,438 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:11:55" (2/3) ... [2020-11-30 03:11:56,439 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72c0cf02 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 03:11:56, skipping insertion in model container [2020-11-30 03:11:56,439 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 03:11:56" (3/3) ... [2020-11-30 03:11:56,441 INFO L111 eAbstractionObserver]: Analyzing ICFG float-rounding1.i [2020-11-30 03:11:56,452 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 03:11:56,457 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2020-11-30 03:11:56,483 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-30 03:11:56,509 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 03:11:56,510 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 03:11:56,510 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 03:11:56,510 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 03:11:56,510 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 03:11:56,511 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 03:11:56,511 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 03:11:56,511 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 03:11:56,525 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states. [2020-11-30 03:11:56,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-30 03:11:56,530 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:11:56,530 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 03:11:56,531 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 03:11:56,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:11:56,537 INFO L82 PathProgramCache]: Analyzing trace with hash 1805428198, now seen corresponding path program 1 times [2020-11-30 03:11:56,549 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 03:11:56,550 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [118720241] [2020-11-30 03:11:56,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c57c3c2a-c152-45fb-906b-7e333df442c8/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 [2020-11-30 03:11:56,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:11:56,702 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-30 03:11:56,706 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 03:11:56,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:11:56,764 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 03:11:56,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:11:56,777 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [118720241] [2020-11-30 03:11:56,778 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 03:11:56,778 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-30 03:11:56,779 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224624704] [2020-11-30 03:11:56,786 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 03:11:56,787 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 03:11:56,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 03:11:56,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-30 03:11:56,808 INFO L87 Difference]: Start difference. First operand 53 states. Second operand 4 states. [2020-11-30 03:11:56,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 03:11:56,972 INFO L93 Difference]: Finished difference Result 113 states and 162 transitions. [2020-11-30 03:11:56,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 03:11:56,975 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-11-30 03:11:56,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 03:11:56,987 INFO L225 Difference]: With dead ends: 113 [2020-11-30 03:11:56,987 INFO L226 Difference]: Without dead ends: 56 [2020-11-30 03:11:56,993 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-30 03:11:57,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-11-30 03:11:57,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 41. [2020-11-30 03:11:57,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-11-30 03:11:57,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 46 transitions. [2020-11-30 03:11:57,038 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 46 transitions. Word has length 7 [2020-11-30 03:11:57,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 03:11:57,038 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 46 transitions. [2020-11-30 03:11:57,039 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 03:11:57,039 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 46 transitions. [2020-11-30 03:11:57,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-30 03:11:57,041 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:11:57,041 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 03:11:57,261 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-30 03:11:57,261 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 03:11:57,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:11:57,264 INFO L82 PathProgramCache]: Analyzing trace with hash 177934122, now seen corresponding path program 1 times [2020-11-30 03:11:57,268 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 03:11:57,268 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1200437328] [2020-11-30 03:11:57,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c57c3c2a-c152-45fb-906b-7e333df442c8/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-11-30 03:11:57,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:11:57,360 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-30 03:11:57,361 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 03:11:57,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:11:57,546 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 03:11:58,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:11:58,784 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1200437328] [2020-11-30 03:11:58,784 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 03:11:58,785 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-11-30 03:11:58,785 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407745559] [2020-11-30 03:11:58,786 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-30 03:11:58,786 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 03:11:58,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-30 03:11:58,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-11-30 03:11:58,788 INFO L87 Difference]: Start difference. First operand 41 states and 46 transitions. Second operand 8 states. [2020-11-30 03:11:59,745 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2020-11-30 03:12:01,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 03:12:01,789 INFO L93 Difference]: Finished difference Result 66 states and 70 transitions. [2020-11-30 03:12:01,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-30 03:12:01,798 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 8 [2020-11-30 03:12:01,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 03:12:01,799 INFO L225 Difference]: With dead ends: 66 [2020-11-30 03:12:01,800 INFO L226 Difference]: Without dead ends: 63 [2020-11-30 03:12:01,801 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-11-30 03:12:01,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-11-30 03:12:01,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 38. [2020-11-30 03:12:01,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-11-30 03:12:01,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 43 transitions. [2020-11-30 03:12:01,809 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 43 transitions. Word has length 8 [2020-11-30 03:12:01,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 03:12:01,810 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 43 transitions. [2020-11-30 03:12:01,810 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-30 03:12:01,810 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 43 transitions. [2020-11-30 03:12:01,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-30 03:12:01,811 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:12:01,812 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 03:12:02,026 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-30 03:12:02,027 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 03:12:02,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:12:02,028 INFO L82 PathProgramCache]: Analyzing trace with hash 1941724699, now seen corresponding path program 1 times [2020-11-30 03:12:02,028 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 03:12:02,029 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [585518854] [2020-11-30 03:12:02,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c57c3c2a-c152-45fb-906b-7e333df442c8/bin/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-11-30 03:12:02,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:12:02,133 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 2 conjunts are in the unsatisfiable core [2020-11-30 03:12:02,134 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 03:12:02,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:12:02,140 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 03:12:02,157 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:12:02,158 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [585518854] [2020-11-30 03:12:02,158 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 03:12:02,158 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-30 03:12:02,158 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541548076] [2020-11-30 03:12:02,159 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 03:12:02,159 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 03:12:02,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 03:12:02,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-30 03:12:02,160 INFO L87 Difference]: Start difference. First operand 38 states and 43 transitions. Second operand 4 states. [2020-11-30 03:12:02,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 03:12:02,212 INFO L93 Difference]: Finished difference Result 65 states and 72 transitions. [2020-11-30 03:12:02,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 03:12:02,213 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-11-30 03:12:02,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 03:12:02,214 INFO L225 Difference]: With dead ends: 65 [2020-11-30 03:12:02,214 INFO L226 Difference]: Without dead ends: 38 [2020-11-30 03:12:02,215 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-30 03:12:02,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-11-30 03:12:02,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-11-30 03:12:02,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-11-30 03:12:02,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 37 transitions. [2020-11-30 03:12:02,220 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 37 transitions. Word has length 13 [2020-11-30 03:12:02,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 03:12:02,220 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 37 transitions. [2020-11-30 03:12:02,220 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 03:12:02,221 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 37 transitions. [2020-11-30 03:12:02,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-30 03:12:02,221 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:12:02,221 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 03:12:02,422 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-30 03:12:02,422 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 03:12:02,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:12:02,423 INFO L82 PathProgramCache]: Analyzing trace with hash -745441216, now seen corresponding path program 1 times [2020-11-30 03:12:02,423 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 03:12:02,423 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [876851740] [2020-11-30 03:12:02,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c57c3c2a-c152-45fb-906b-7e333df442c8/bin/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-11-30 03:12:02,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:12:02,557 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-30 03:12:02,558 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 03:12:02,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:12:02,733 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 03:12:04,048 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2020-11-30 03:12:04,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:12:04,058 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [876851740] [2020-11-30 03:12:04,058 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 03:12:04,058 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-11-30 03:12:04,058 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528433118] [2020-11-30 03:12:04,059 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-30 03:12:04,059 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 03:12:04,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-30 03:12:04,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-11-30 03:12:04,060 INFO L87 Difference]: Start difference. First operand 38 states and 37 transitions. Second operand 8 states. [2020-11-30 03:12:05,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 03:12:05,030 INFO L93 Difference]: Finished difference Result 38 states and 37 transitions. [2020-11-30 03:12:05,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 03:12:05,034 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 15 [2020-11-30 03:12:05,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 03:12:05,035 INFO L225 Difference]: With dead ends: 38 [2020-11-30 03:12:05,035 INFO L226 Difference]: Without dead ends: 35 [2020-11-30 03:12:05,035 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2020-11-30 03:12:05,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-11-30 03:12:05,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2020-11-30 03:12:05,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-11-30 03:12:05,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 34 transitions. [2020-11-30 03:12:05,044 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 34 transitions. Word has length 15 [2020-11-30 03:12:05,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 03:12:05,044 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 34 transitions. [2020-11-30 03:12:05,045 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-30 03:12:05,045 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 34 transitions. [2020-11-30 03:12:05,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-30 03:12:05,045 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:12:05,046 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 03:12:05,246 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-30 03:12:05,247 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 03:12:05,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:12:05,247 INFO L82 PathProgramCache]: Analyzing trace with hash -1207633360, now seen corresponding path program 1 times [2020-11-30 03:12:05,248 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 03:12:05,248 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1809635104] [2020-11-30 03:12:05,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c57c3c2a-c152-45fb-906b-7e333df442c8/bin/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2020-11-30 03:12:05,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:12:05,392 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 13 conjunts are in the unsatisfiable core [2020-11-30 03:12:05,394 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 03:12:05,444 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 03:12:05,471 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-30 03:12:05,472 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-30 03:12:05,605 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-11-30 03:12:06,628 WARN L193 SmtUtils]: Spent 464.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2020-11-30 03:12:06,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:12:06,726 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 03:12:11,495 WARN L193 SmtUtils]: Spent 390.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2020-11-30 03:12:11,509 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 2, 1] term [2020-11-30 03:12:11,509 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:12:12,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:12:12,191 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1809635104] [2020-11-30 03:12:12,191 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 03:12:12,191 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 15 [2020-11-30 03:12:12,191 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920192022] [2020-11-30 03:12:12,192 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-11-30 03:12:12,192 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 03:12:12,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-11-30 03:12:12,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2020-11-30 03:12:12,193 INFO L87 Difference]: Start difference. First operand 35 states and 34 transitions. Second operand 15 states. [2020-11-30 03:12:13,677 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2020-11-30 03:12:16,615 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2020-11-30 03:12:17,094 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 31 [2020-11-30 03:12:17,489 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 29 [2020-11-30 03:12:17,744 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 36 [2020-11-30 03:12:19,008 WARN L193 SmtUtils]: Spent 935.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 41 [2020-11-30 03:12:19,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 03:12:19,338 INFO L93 Difference]: Finished difference Result 35 states and 34 transitions. [2020-11-30 03:12:19,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-11-30 03:12:19,340 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 24 [2020-11-30 03:12:19,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 03:12:19,340 INFO L225 Difference]: With dead ends: 35 [2020-11-30 03:12:19,340 INFO L226 Difference]: Without dead ends: 32 [2020-11-30 03:12:19,341 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 32 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 10.7s TimeCoverageRelationStatistics Valid=149, Invalid=403, Unknown=0, NotChecked=0, Total=552 [2020-11-30 03:12:19,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-11-30 03:12:19,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2020-11-30 03:12:19,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-11-30 03:12:19,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 31 transitions. [2020-11-30 03:12:19,344 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 31 transitions. Word has length 24 [2020-11-30 03:12:19,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 03:12:19,345 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 31 transitions. [2020-11-30 03:12:19,345 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-11-30 03:12:19,345 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 31 transitions. [2020-11-30 03:12:19,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-11-30 03:12:19,346 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:12:19,346 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 03:12:19,554 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-11-30 03:12:19,555 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 03:12:19,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:12:19,555 INFO L82 PathProgramCache]: Analyzing trace with hash 2144167093, now seen corresponding path program 1 times [2020-11-30 03:12:19,555 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 03:12:19,556 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1328448933] [2020-11-30 03:12:19,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c57c3c2a-c152-45fb-906b-7e333df442c8/bin/utaipan/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2020-11-30 03:12:19,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:12:19,704 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 13 conjunts are in the unsatisfiable core [2020-11-30 03:12:19,706 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 03:12:19,781 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-30 03:12:19,801 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-30 03:12:19,802 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-11-30 03:12:19,915 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-11-30 03:12:20,501 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2020-11-30 03:12:20,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:12:20,562 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 03:12:24,596 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2020-11-30 03:12:26,286 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2020-11-30 03:12:26,291 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:12:26,291 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 03:12:28,563 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2020-11-30 03:12:30,173 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2020-11-30 03:12:30,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:12:30,222 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1328448933] [2020-11-30 03:12:30,222 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 03:12:30,222 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 16 [2020-11-30 03:12:30,222 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652971469] [2020-11-30 03:12:30,222 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-11-30 03:12:30,223 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 03:12:30,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-11-30 03:12:30,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2020-11-30 03:12:30,224 INFO L87 Difference]: Start difference. First operand 32 states and 31 transitions. Second operand 16 states. [2020-11-30 03:12:33,970 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2020-11-30 03:12:35,973 WARN L193 SmtUtils]: Spent 444.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2020-11-30 03:12:37,775 WARN L193 SmtUtils]: Spent 799.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 34 [2020-11-30 03:12:39,314 WARN L193 SmtUtils]: Spent 752.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2020-11-30 03:12:40,279 WARN L193 SmtUtils]: Spent 847.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 41 [2020-11-30 03:12:40,584 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 36 [2020-11-30 03:12:40,862 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 29 [2020-11-30 03:12:41,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 03:12:41,003 INFO L93 Difference]: Finished difference Result 32 states and 31 transitions. [2020-11-30 03:12:41,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-30 03:12:41,008 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 31 [2020-11-30 03:12:41,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 03:12:41,008 INFO L225 Difference]: With dead ends: 32 [2020-11-30 03:12:41,008 INFO L226 Difference]: Without dead ends: 0 [2020-11-30 03:12:41,009 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 16.3s TimeCoverageRelationStatistics Valid=144, Invalid=362, Unknown=0, NotChecked=0, Total=506 [2020-11-30 03:12:41,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-30 03:12:41,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-30 03:12:41,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-30 03:12:41,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-30 03:12:41,010 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 31 [2020-11-30 03:12:41,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 03:12:41,010 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 03:12:41,010 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-11-30 03:12:41,010 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-30 03:12:41,010 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-30 03:12:41,210 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-11-30 03:12:41,212 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-30 03:12:42,256 WARN L193 SmtUtils]: Spent 972.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 41 [2020-11-30 03:12:42,267 INFO L274 CegarLoopResult]: For program point L2-1(lines 2 4) no Hoare annotation was computed. [2020-11-30 03:12:42,267 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2020-11-30 03:12:42,268 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-30 03:12:42,268 INFO L274 CegarLoopResult]: For program point L3-2(line 3) no Hoare annotation was computed. [2020-11-30 03:12:42,268 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-30 03:12:42,268 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-30 03:12:42,268 INFO L274 CegarLoopResult]: For program point L1110(line 1110) no Hoare annotation was computed. [2020-11-30 03:12:42,268 INFO L270 CegarLoopResult]: At program point L1110-2(lines 1097 1113) the Hoare annotation is: (and (exists ((ULTIMATE.start_roundingTest_~f1 (_ FloatingPoint 8 24)) (ULTIMATE.start_roundingTest_~f2 (_ FloatingPoint 8 24)) (v_prenex_4 RoundingMode)) (and (fp.lt ((_ to_fp 8 24) v_prenex_4 (/ 12582911.0 140737488355328.0)) ULTIMATE.start_roundingTest_~f2) (fp.lt ((_ to_fp 8 24) v_prenex_4 (/ 16777215.0 16777216.0)) ULTIMATE.start_roundingTest_~f1) (= (fp.add currentRoundingMode ULTIMATE.start_roundingTest_~f1 ULTIMATE.start_roundingTest_~f2) ULTIMATE.start_roundingTest_~roundDownSum~0) (fp.lt ULTIMATE.start_roundingTest_~f1 ((_ to_fp 8 24) v_prenex_4 (/ 8388609.0 8388608.0))) (fp.lt ULTIMATE.start_roundingTest_~f2 ((_ to_fp 8 24) v_prenex_4 (/ 12582913.0 140737488355328.0))))) (= currentRoundingMode roundTowardNegative) (= (_ bv1024 32) ULTIMATE.start_ULTIMATE.setCurrentRoundingMode_i) (exists ((v_prenex_2 RoundingMode)) (and (= ULTIMATE.start_roundingTest_~f1 ((_ to_fp 8 24) v_prenex_2 ((_ to_fp 11 53) v_prenex_2 1.0))) (= ULTIMATE.start_roundingTest_~f2 ((_ to_fp 8 24) v_prenex_2 ((_ to_fp 11 53) v_prenex_2 (/ 3.0 33554432.0)))))) (fp.eq ULTIMATE.start_roundingTest_~roundToNearestSum~0 ((_ to_fp 8 24) currentRoundingMode (/ 8388609.0 8388608.0)))) [2020-11-30 03:12:42,268 INFO L274 CegarLoopResult]: For program point L1110-3(line 1110) no Hoare annotation was computed. [2020-11-30 03:12:42,268 INFO L270 CegarLoopResult]: At program point L1110-5(lines 1097 1113) the Hoare annotation is: (not (= (_ bv3072 32) ULTIMATE.start_ULTIMATE.setCurrentRoundingMode_i)) [2020-11-30 03:12:42,268 INFO L270 CegarLoopResult]: At program point L1135(lines 1116 1136) the Hoare annotation is: (not (= (_ bv3072 32) ULTIMATE.start_ULTIMATE.setCurrentRoundingMode_i)) [2020-11-30 03:12:42,268 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2020-11-30 03:12:42,269 INFO L274 CegarLoopResult]: For program point L1103(line 1103) no Hoare annotation was computed. [2020-11-30 03:12:42,269 INFO L274 CegarLoopResult]: For program point L1103-2(line 1103) no Hoare annotation was computed. [2020-11-30 03:12:42,269 INFO L274 CegarLoopResult]: For program point L1103-3(line 1103) no Hoare annotation was computed. [2020-11-30 03:12:42,269 INFO L274 CegarLoopResult]: For program point L1103-5(line 1103) no Hoare annotation was computed. [2020-11-30 03:12:42,269 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-30 03:12:42,269 INFO L274 CegarLoopResult]: For program point L-1-1(line -1) no Hoare annotation was computed. [2020-11-30 03:12:42,269 INFO L274 CegarLoopResult]: For program point L-1-3(line -1) no Hoare annotation was computed. [2020-11-30 03:12:42,269 INFO L274 CegarLoopResult]: For program point L-1-5(line -1) no Hoare annotation was computed. [2020-11-30 03:12:42,269 INFO L274 CegarLoopResult]: For program point L-1-7(line -1) no Hoare annotation was computed. [2020-11-30 03:12:42,269 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2020-11-30 03:12:42,269 INFO L274 CegarLoopResult]: For program point L-1-9(line -1) no Hoare annotation was computed. [2020-11-30 03:12:42,270 INFO L274 CegarLoopResult]: For program point L-1-10(line -1) no Hoare annotation was computed. [2020-11-30 03:12:42,270 INFO L274 CegarLoopResult]: For program point L-1-12(line -1) no Hoare annotation was computed. [2020-11-30 03:12:42,270 INFO L274 CegarLoopResult]: For program point L-1-14(line -1) no Hoare annotation was computed. [2020-11-30 03:12:42,270 INFO L274 CegarLoopResult]: For program point L16(line 16) no Hoare annotation was computed. [2020-11-30 03:12:42,270 INFO L274 CegarLoopResult]: For program point L-1-16(line -1) no Hoare annotation was computed. [2020-11-30 03:12:42,270 INFO L274 CegarLoopResult]: For program point L16-2(line 16) no Hoare annotation was computed. [2020-11-30 03:12:42,270 INFO L274 CegarLoopResult]: For program point L16-3(line 16) no Hoare annotation was computed. [2020-11-30 03:12:42,270 INFO L274 CegarLoopResult]: For program point L-1-18(line -1) no Hoare annotation was computed. [2020-11-30 03:12:42,270 INFO L274 CegarLoopResult]: For program point L16-4(line 16) no Hoare annotation was computed. [2020-11-30 03:12:42,270 INFO L274 CegarLoopResult]: For program point L-1-19(line -1) no Hoare annotation was computed. [2020-11-30 03:12:42,270 INFO L274 CegarLoopResult]: For program point L16-6(line 16) no Hoare annotation was computed. [2020-11-30 03:12:42,270 INFO L274 CegarLoopResult]: For program point L-1-21(line -1) no Hoare annotation was computed. [2020-11-30 03:12:42,270 INFO L274 CegarLoopResult]: For program point L16-7(line 16) no Hoare annotation was computed. [2020-11-30 03:12:42,270 INFO L274 CegarLoopResult]: For program point L-1-23(line -1) no Hoare annotation was computed. [2020-11-30 03:12:42,270 INFO L274 CegarLoopResult]: For program point L16-8(line 16) no Hoare annotation was computed. [2020-11-30 03:12:42,271 INFO L274 CegarLoopResult]: For program point L-1-25(line -1) no Hoare annotation was computed. [2020-11-30 03:12:42,271 INFO L274 CegarLoopResult]: For program point L16-10(line 16) no Hoare annotation was computed. [2020-11-30 03:12:42,271 INFO L274 CegarLoopResult]: For program point L16-11(line 16) no Hoare annotation was computed. [2020-11-30 03:12:42,271 INFO L274 CegarLoopResult]: For program point L-1-27(line -1) no Hoare annotation was computed. [2020-11-30 03:12:42,271 INFO L274 CegarLoopResult]: For program point L16-12(line 16) no Hoare annotation was computed. [2020-11-30 03:12:42,271 INFO L274 CegarLoopResult]: For program point L-1-28(line -1) no Hoare annotation was computed. [2020-11-30 03:12:42,271 INFO L274 CegarLoopResult]: For program point L16-14(line 16) no Hoare annotation was computed. [2020-11-30 03:12:42,271 INFO L274 CegarLoopResult]: For program point L-1-30(line -1) no Hoare annotation was computed. [2020-11-30 03:12:42,271 INFO L274 CegarLoopResult]: For program point L16-15(line 16) no Hoare annotation was computed. [2020-11-30 03:12:42,271 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-30 03:12:42,271 INFO L274 CegarLoopResult]: For program point L-1-32(line -1) no Hoare annotation was computed. [2020-11-30 03:12:42,271 INFO L274 CegarLoopResult]: For program point L-1-34(line -1) no Hoare annotation was computed. [2020-11-30 03:12:42,271 INFO L274 CegarLoopResult]: For program point L-1-36(line -1) no Hoare annotation was computed. [2020-11-30 03:12:42,271 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2020-11-30 03:12:42,272 INFO L274 CegarLoopResult]: For program point L2(lines 2 4) no Hoare annotation was computed. [2020-11-30 03:12:42,278 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-11-30 03:12:42,278 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f2,QUANTIFIED] [2020-11-30 03:12:42,286 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-11-30 03:12:42,286 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f1,QUANTIFIED] [2020-11-30 03:12:42,286 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f1,QUANTIFIED] [2020-11-30 03:12:42,286 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f2,QUANTIFIED] [2020-11-30 03:12:42,287 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f1,QUANTIFIED] [2020-11-30 03:12:42,288 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-11-30 03:12:42,294 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f2,QUANTIFIED] [2020-11-30 03:12:42,294 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-11-30 03:12:42,296 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardNegative [2020-11-30 03:12:42,297 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2020-11-30 03:12:42,297 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2020-11-30 03:12:42,297 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2020-11-30 03:12:42,297 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2020-11-30 03:12:42,302 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 03:12:42,302 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 03:12:42,302 WARN L1295 BoogieBacktranslator]: unknown boogie variable i [2020-11-30 03:12:42,303 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 03:12:42,309 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-11-30 03:12:42,310 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f2,QUANTIFIED] [2020-11-30 03:12:42,311 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-11-30 03:12:42,311 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f1,QUANTIFIED] [2020-11-30 03:12:42,311 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f1,QUANTIFIED] [2020-11-30 03:12:42,312 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f2,QUANTIFIED] [2020-11-30 03:12:42,312 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f1,QUANTIFIED] [2020-11-30 03:12:42,312 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-11-30 03:12:42,312 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f2,QUANTIFIED] [2020-11-30 03:12:42,315 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-11-30 03:12:42,315 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardNegative [2020-11-30 03:12:42,315 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2020-11-30 03:12:42,316 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2020-11-30 03:12:42,316 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2020-11-30 03:12:42,316 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2020-11-30 03:12:42,317 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 03:12:42,318 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 03:12:42,318 WARN L1295 BoogieBacktranslator]: unknown boogie variable i [2020-11-30 03:12:42,318 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 03:12:42,320 WARN L1295 BoogieBacktranslator]: unknown boogie variable i [2020-11-30 03:12:42,320 WARN L1295 BoogieBacktranslator]: unknown boogie variable i [2020-11-30 03:12:42,321 WARN L1295 BoogieBacktranslator]: unknown boogie variable i [2020-11-30 03:12:42,321 WARN L1295 BoogieBacktranslator]: unknown boogie variable i [2020-11-30 03:12:42,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 03:12:42 BoogieIcfgContainer [2020-11-30 03:12:42,330 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 03:12:42,331 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 03:12:42,331 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 03:12:42,331 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 03:12:42,332 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 03:11:56" (3/4) ... [2020-11-30 03:12:42,335 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-30 03:12:42,347 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 35 nodes and edges [2020-11-30 03:12:42,348 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2020-11-30 03:12:42,348 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2020-11-30 03:12:42,348 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-11-30 03:12:42,370 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((\exists ULTIMATE.start_roundingTest_~f1 : C_FLOAT, ULTIMATE.start_roundingTest_~f2 : C_FLOAT, v_prenex_4 : FloatRoundingMode :: (((~fp.lt~FLOAT(~to_fp~LONGDOUBLE(v_prenex_4, 12582911/140737488355328), ULTIMATE.start_roundingTest_~f2) && ~fp.lt~FLOAT(~to_fp~LONGDOUBLE(v_prenex_4, 16777215/16777216), ULTIMATE.start_roundingTest_~f1)) && ~fp.add~FLOAT(unknown-currentRoundingMode-unknown, ULTIMATE.start_roundingTest_~f1, ULTIMATE.start_roundingTest_~f2) == roundDownSum) && ~fp.lt~FLOAT(ULTIMATE.start_roundingTest_~f1, ~to_fp~LONGDOUBLE(v_prenex_4, 8388609/8388608))) && ~fp.lt~FLOAT(ULTIMATE.start_roundingTest_~f2, ~to_fp~LONGDOUBLE(v_prenex_4, 12582913/140737488355328))) && unknown-currentRoundingMode-unknown == ~roundTowardNegative) && 1024bv32 == unknown-i-unknown) && (\exists v_prenex_2 : FloatRoundingMode :: f1 == ~to_fp~LONGDOUBLE(v_prenex_2, ~to_fp~LONGDOUBLE(v_prenex_2, 1.0)) && f2 == ~to_fp~LONGDOUBLE(v_prenex_2, ~to_fp~LONGDOUBLE(v_prenex_2, 3/33554432)))) && ~fp.eq~FLOAT(roundToNearestSum, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 8388609/8388608)) [2020-11-30 03:12:42,401 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_c57c3c2a-c152-45fb-906b-7e333df442c8/bin/utaipan/witness.graphml [2020-11-30 03:12:42,404 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 03:12:42,406 INFO L168 Benchmark]: Toolchain (without parser) took 48206.76 ms. Allocated memory was 54.5 MB in the beginning and 94.4 MB in the end (delta: 39.8 MB). Free memory was 32.4 MB in the beginning and 58.8 MB in the end (delta: -26.4 MB). Peak memory consumption was 14.3 MB. Max. memory is 16.1 GB. [2020-11-30 03:12:42,406 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 54.5 MB. Free memory was 37.1 MB in the beginning and 37.0 MB in the end (delta: 44.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 03:12:42,407 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1302.99 ms. Allocated memory was 54.5 MB in the beginning and 94.4 MB in the end (delta: 39.8 MB). Free memory was 32.2 MB in the beginning and 65.7 MB in the end (delta: -33.5 MB). Peak memory consumption was 27.4 MB. Max. memory is 16.1 GB. [2020-11-30 03:12:42,407 INFO L168 Benchmark]: Boogie Procedure Inliner took 94.51 ms. Allocated memory is still 94.4 MB. Free memory was 65.7 MB in the beginning and 62.8 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 03:12:42,409 INFO L168 Benchmark]: Boogie Preprocessor took 54.52 ms. Allocated memory is still 94.4 MB. Free memory was 62.8 MB in the beginning and 60.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 03:12:42,409 INFO L168 Benchmark]: RCFGBuilder took 768.64 ms. Allocated memory is still 94.4 MB. Free memory was 60.8 MB in the beginning and 39.8 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2020-11-30 03:12:42,410 INFO L168 Benchmark]: TraceAbstraction took 45897.22 ms. Allocated memory is still 94.4 MB. Free memory was 39.8 MB in the beginning and 62.0 MB in the end (delta: -22.2 MB). Peak memory consumption was 16.3 MB. Max. memory is 16.1 GB. [2020-11-30 03:12:42,412 INFO L168 Benchmark]: Witness Printer took 73.39 ms. Allocated memory is still 94.4 MB. Free memory was 62.0 MB in the beginning and 58.8 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 03:12:42,414 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 54.5 MB. Free memory was 37.1 MB in the beginning and 37.0 MB in the end (delta: 44.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1302.99 ms. Allocated memory was 54.5 MB in the beginning and 94.4 MB in the end (delta: 39.8 MB). Free memory was 32.2 MB in the beginning and 65.7 MB in the end (delta: -33.5 MB). Peak memory consumption was 27.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 94.51 ms. Allocated memory is still 94.4 MB. Free memory was 65.7 MB in the beginning and 62.8 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 54.52 ms. Allocated memory is still 94.4 MB. Free memory was 62.8 MB in the beginning and 60.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 768.64 ms. Allocated memory is still 94.4 MB. Free memory was 60.8 MB in the beginning and 39.8 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 45897.22 ms. Allocated memory is still 94.4 MB. Free memory was 39.8 MB in the beginning and 62.0 MB in the end (delta: -22.2 MB). Peak memory consumption was 16.3 MB. Max. memory is 16.1 GB. * Witness Printer took 73.39 ms. Allocated memory is still 94.4 MB. Free memory was 62.0 MB in the beginning and 58.8 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardNegative - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardNegative - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable i - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable i - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable i - GenericResult: Unfinished Backtranslation unknown boogie variable i - GenericResult: Unfinished Backtranslation unknown boogie variable i - GenericResult: Unfinished Backtranslation unknown boogie variable i * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 16]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 16]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 16]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 16]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 1097]: Loop Invariant [2020-11-30 03:12:42,430 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-11-30 03:12:42,432 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f2,QUANTIFIED] [2020-11-30 03:12:42,433 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-11-30 03:12:42,433 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f1,QUANTIFIED] [2020-11-30 03:12:42,433 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f1,QUANTIFIED] [2020-11-30 03:12:42,433 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f2,QUANTIFIED] [2020-11-30 03:12:42,433 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f1,QUANTIFIED] [2020-11-30 03:12:42,434 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-11-30 03:12:42,434 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f2,QUANTIFIED] [2020-11-30 03:12:42,434 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-11-30 03:12:42,434 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardNegative [2020-11-30 03:12:42,434 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2020-11-30 03:12:42,435 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2020-11-30 03:12:42,435 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2020-11-30 03:12:42,435 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2020-11-30 03:12:42,435 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 03:12:42,436 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 03:12:42,436 WARN L1295 BoogieBacktranslator]: unknown boogie variable i [2020-11-30 03:12:42,436 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 03:12:42,437 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-11-30 03:12:42,437 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f2,QUANTIFIED] [2020-11-30 03:12:42,437 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-11-30 03:12:42,437 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f1,QUANTIFIED] [2020-11-30 03:12:42,437 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f1,QUANTIFIED] [2020-11-30 03:12:42,438 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f2,QUANTIFIED] [2020-11-30 03:12:42,438 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f1,QUANTIFIED] [2020-11-30 03:12:42,438 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-11-30 03:12:42,438 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f2,QUANTIFIED] [2020-11-30 03:12:42,438 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-11-30 03:12:42,438 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardNegative [2020-11-30 03:12:42,439 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2020-11-30 03:12:42,439 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2020-11-30 03:12:42,439 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2020-11-30 03:12:42,443 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2020-11-30 03:12:42,444 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 03:12:42,447 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 03:12:42,447 WARN L1295 BoogieBacktranslator]: unknown boogie variable i [2020-11-30 03:12:42,447 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((((\exists ULTIMATE.start_roundingTest_~f1 : C_FLOAT, ULTIMATE.start_roundingTest_~f2 : C_FLOAT, v_prenex_4 : FloatRoundingMode :: (((~fp.lt~FLOAT(~to_fp~LONGDOUBLE(v_prenex_4, 12582911/140737488355328), ULTIMATE.start_roundingTest_~f2) && ~fp.lt~FLOAT(~to_fp~LONGDOUBLE(v_prenex_4, 16777215/16777216), ULTIMATE.start_roundingTest_~f1)) && ~fp.add~FLOAT(unknown-currentRoundingMode-unknown, ULTIMATE.start_roundingTest_~f1, ULTIMATE.start_roundingTest_~f2) == roundDownSum) && ~fp.lt~FLOAT(ULTIMATE.start_roundingTest_~f1, ~to_fp~LONGDOUBLE(v_prenex_4, 8388609/8388608))) && ~fp.lt~FLOAT(ULTIMATE.start_roundingTest_~f2, ~to_fp~LONGDOUBLE(v_prenex_4, 12582913/140737488355328))) && unknown-currentRoundingMode-unknown == ~roundTowardNegative) && 1024bv32 == unknown-i-unknown) && (\exists v_prenex_2 : FloatRoundingMode :: f1 == ~to_fp~LONGDOUBLE(v_prenex_2, ~to_fp~LONGDOUBLE(v_prenex_2, 1.0)) && f2 == ~to_fp~LONGDOUBLE(v_prenex_2, ~to_fp~LONGDOUBLE(v_prenex_2, 3/33554432)))) && ~fp.eq~FLOAT(roundToNearestSum, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 8388609/8388608)) - InvariantResult [Line: 1097]: Loop Invariant [2020-11-30 03:12:42,451 WARN L1295 BoogieBacktranslator]: unknown boogie variable i [2020-11-30 03:12:42,452 WARN L1295 BoogieBacktranslator]: unknown boogie variable i Derived loop invariant: !(3072bv32 == unknown-i-unknown) - InvariantResult [Line: 1116]: Loop Invariant [2020-11-30 03:12:42,452 WARN L1295 BoogieBacktranslator]: unknown boogie variable i [2020-11-30 03:12:42,452 WARN L1295 BoogieBacktranslator]: unknown boogie variable i Derived loop invariant: !(3072bv32 == unknown-i-unknown) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 53 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 44.7s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 22.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 160 SDtfs, 438 SDslu, 297 SDs, 0 SdLazy, 355 SolverSat, 66 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 10.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 204 GetRequests, 140 SyntacticMatches, 1 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 30.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=53occurred 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, 6 MinimizatonAttempts, 40 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 8 NumberOfFragments, 64 HoareAnnotationTreeSize, 3 FomulaSimplifications, 43 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 136 FormulaSimplificationTreeSizeReductionInter, 0.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 20.3s InterpolantComputationTime, 98 NumberOfCodeBlocks, 98 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 184 ConstructedInterpolants, 36 QuantifiedInterpolants, 30227 SizeOfPredicates, 52 NumberOfNonLiveVariables, 278 ConjunctsInSsa, 48 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 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...