./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 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_aebbf6b2-9e11-4c82-a7d5-d6178b51c19e/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_aebbf6b2-9e11-4c82-a7d5-d6178b51c19e/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_aebbf6b2-9e11-4c82-a7d5-d6178b51c19e/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_aebbf6b2-9e11-4c82-a7d5-d6178b51c19e/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-rounding1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_aebbf6b2-9e11-4c82-a7d5-d6178b51c19e/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_aebbf6b2-9e11-4c82-a7d5-d6178b51c19e/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_aebbf6b2-9e11-4c82-a7d5-d6178b51c19e/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_aebbf6b2-9e11-4c82-a7d5-d6178b51c19e/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_aebbf6b2-9e11-4c82-a7d5-d6178b51c19e/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_aebbf6b2-9e11-4c82-a7d5-d6178b51c19e/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-rounding1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_aebbf6b2-9e11-4c82-a7d5-d6178b51c19e/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_aebbf6b2-9e11-4c82-a7d5-d6178b51c19e/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 0.2.0-7b2dab5 [2020-12-03 12:34:59,839 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-03 12:34:59,841 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-03 12:34:59,897 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-03 12:34:59,898 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-03 12:34:59,903 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-03 12:34:59,905 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-03 12:34:59,920 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-03 12:34:59,923 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-03 12:34:59,929 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-03 12:34:59,931 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-03 12:34:59,933 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-03 12:34:59,934 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-03 12:34:59,938 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-03 12:34:59,940 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-03 12:34:59,942 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-03 12:34:59,944 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-03 12:34:59,948 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-03 12:34:59,951 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-03 12:34:59,959 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-03 12:34:59,961 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-03 12:34:59,962 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-03 12:34:59,965 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-03 12:34:59,966 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-03 12:34:59,975 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-03 12:34:59,976 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-03 12:34:59,976 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-03 12:34:59,978 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-03 12:34:59,979 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-03 12:34:59,980 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-03 12:34:59,981 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-03 12:34:59,982 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-03 12:34:59,984 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-03 12:34:59,986 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-03 12:34:59,987 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-03 12:34:59,987 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-03 12:34:59,989 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-03 12:34:59,989 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-03 12:34:59,989 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-03 12:34:59,990 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-03 12:34:59,991 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-03 12:34:59,994 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_aebbf6b2-9e11-4c82-a7d5-d6178b51c19e/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-12-03 12:35:00,041 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-03 12:35:00,041 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-03 12:35:00,043 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-03 12:35:00,043 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-03 12:35:00,044 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-03 12:35:00,044 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-03 12:35:00,044 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-03 12:35:00,045 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-03 12:35:00,045 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-03 12:35:00,045 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-03 12:35:00,046 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-03 12:35:00,047 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-03 12:35:00,047 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-03 12:35:00,047 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-03 12:35:00,048 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-03 12:35:00,049 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-03 12:35:00,049 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-03 12:35:00,049 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-03 12:35:00,050 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-03 12:35:00,050 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-03 12:35:00,050 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-03 12:35:00,050 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-03 12:35:00,051 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-03 12:35:00,051 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-03 12:35:00,051 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-03 12:35:00,052 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-03 12:35:00,052 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-03 12:35:00,052 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-03 12:35:00,053 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-03 12:35:00,054 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-03 12:35:00,055 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-03 12:35:00,055 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-03 12:35:00,056 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-03 12:35:00,056 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-03 12:35:00,056 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-03 12:35:00,056 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-03 12:35:00,057 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-03 12:35:00,057 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-03 12:35:00,057 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-03 12:35:00,058 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_aebbf6b2-9e11-4c82-a7d5-d6178b51c19e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_aebbf6b2-9e11-4c82-a7d5-d6178b51c19e/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 91c18909fa64fb894260d901851992225c0131b1 [2020-12-03 12:35:00,353 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-03 12:35:00,377 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-03 12:35:00,380 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-03 12:35:00,381 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-03 12:35:00,385 INFO L275 PluginConnector]: CDTParser initialized [2020-12-03 12:35:00,386 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_aebbf6b2-9e11-4c82-a7d5-d6178b51c19e/bin/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float-rounding1.i [2020-12-03 12:35:00,472 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_aebbf6b2-9e11-4c82-a7d5-d6178b51c19e/bin/utaipan/data/2457b429c/56614b0dfadb40b3a3eadcddb5c23bbd/FLAG367cb9d93 [2020-12-03 12:35:01,121 INFO L306 CDTParser]: Found 1 translation units. [2020-12-03 12:35:01,122 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_aebbf6b2-9e11-4c82-a7d5-d6178b51c19e/sv-benchmarks/c/floats-cbmc-regression/float-rounding1.i [2020-12-03 12:35:01,146 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_aebbf6b2-9e11-4c82-a7d5-d6178b51c19e/bin/utaipan/data/2457b429c/56614b0dfadb40b3a3eadcddb5c23bbd/FLAG367cb9d93 [2020-12-03 12:35:01,369 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_aebbf6b2-9e11-4c82-a7d5-d6178b51c19e/bin/utaipan/data/2457b429c/56614b0dfadb40b3a3eadcddb5c23bbd [2020-12-03 12:35:01,378 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-03 12:35:01,381 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-03 12:35:01,388 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-03 12:35:01,388 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-03 12:35:01,393 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-03 12:35:01,394 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 12:35:01" (1/1) ... [2020-12-03 12:35:01,397 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fc0d839 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:35:01, skipping insertion in model container [2020-12-03 12:35:01,397 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 12:35:01" (1/1) ... [2020-12-03 12:35:01,439 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-03 12:35:01,541 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-03 12:35:02,037 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:1402) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:234) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1402) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:267) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1353) 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:1046) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:232) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.chandler.FunctionHandler.handleFunctionDefinition(FunctionHandler.java:372) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1424) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:155) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.processTUchild(CHandler.java:3213) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2293) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:580) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2020-12-03 12:35:02,046 INFO L168 Benchmark]: Toolchain (without parser) took 660.11 ms. Allocated memory is still 90.2 MB. Free memory was 52.3 MB in the beginning and 65.2 MB in the end (delta: -12.9 MB). Peak memory consumption was 6.4 MB. Max. memory is 16.1 GB. [2020-12-03 12:35:02,047 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 90.2 MB. Free memory is still 69.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-03 12:35:02,048 INFO L168 Benchmark]: CACSL2BoogieTranslator took 651.81 ms. Allocated memory is still 90.2 MB. Free memory was 52.0 MB in the beginning and 65.2 MB in the end (delta: -13.2 MB). Peak memory consumption was 6.4 MB. Max. memory is 16.1 GB. [2020-12-03 12:35:02,049 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 90.2 MB. Free memory is still 69.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 651.81 ms. Allocated memory is still 90.2 MB. Free memory was 52.0 MB in the beginning and 65.2 MB in the end (delta: -13.2 MB). Peak memory consumption was 6.4 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 0.2.0-7b2dab5 [2020-12-03 12:35:04,364 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-03 12:35:04,366 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-03 12:35:04,418 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-03 12:35:04,419 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-03 12:35:04,424 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-03 12:35:04,427 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-03 12:35:04,432 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-03 12:35:04,436 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-03 12:35:04,441 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-03 12:35:04,443 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-03 12:35:04,448 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-03 12:35:04,449 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-03 12:35:04,454 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-03 12:35:04,456 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-03 12:35:04,458 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-03 12:35:04,459 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-03 12:35:04,463 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-03 12:35:04,467 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-03 12:35:04,476 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-03 12:35:04,478 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-03 12:35:04,480 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-03 12:35:04,488 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-03 12:35:04,490 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-03 12:35:04,496 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-03 12:35:04,497 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-03 12:35:04,497 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-03 12:35:04,498 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-03 12:35:04,499 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-03 12:35:04,500 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-03 12:35:04,501 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-03 12:35:04,502 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-03 12:35:04,504 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-03 12:35:04,505 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-03 12:35:04,506 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-03 12:35:04,506 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-03 12:35:04,507 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-03 12:35:04,508 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-03 12:35:04,508 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-03 12:35:04,510 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-03 12:35:04,511 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-03 12:35:04,512 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_aebbf6b2-9e11-4c82-a7d5-d6178b51c19e/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-12-03 12:35:04,552 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-03 12:35:04,555 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-03 12:35:04,557 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-03 12:35:04,557 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-03 12:35:04,557 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-03 12:35:04,557 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-03 12:35:04,558 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-03 12:35:04,558 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-03 12:35:04,558 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-03 12:35:04,560 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-03 12:35:04,561 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-03 12:35:04,561 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-03 12:35:04,562 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-03 12:35:04,562 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-03 12:35:04,562 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-03 12:35:04,562 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-03 12:35:04,562 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-03 12:35:04,563 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-03 12:35:04,563 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-03 12:35:04,563 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-03 12:35:04,563 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-03 12:35:04,563 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-03 12:35:04,564 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-03 12:35:04,564 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-03 12:35:04,564 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-03 12:35:04,564 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-03 12:35:04,565 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-03 12:35:04,565 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-03 12:35:04,565 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-03 12:35:04,565 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-03 12:35:04,566 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-12-03 12:35:04,566 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2020-12-03 12:35:04,566 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-03 12:35:04,566 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-03 12:35:04,567 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-03 12:35:04,567 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_aebbf6b2-9e11-4c82-a7d5-d6178b51c19e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_aebbf6b2-9e11-4c82-a7d5-d6178b51c19e/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 91c18909fa64fb894260d901851992225c0131b1 [2020-12-03 12:35:04,934 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-03 12:35:04,964 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-03 12:35:04,967 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-03 12:35:04,968 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-03 12:35:04,971 INFO L275 PluginConnector]: CDTParser initialized [2020-12-03 12:35:04,974 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_aebbf6b2-9e11-4c82-a7d5-d6178b51c19e/bin/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float-rounding1.i [2020-12-03 12:35:05,052 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_aebbf6b2-9e11-4c82-a7d5-d6178b51c19e/bin/utaipan/data/a4bfe8814/2bf4274864954869867622d032f617b8/FLAG2447b55a2 [2020-12-03 12:35:05,686 INFO L306 CDTParser]: Found 1 translation units. [2020-12-03 12:35:05,686 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_aebbf6b2-9e11-4c82-a7d5-d6178b51c19e/sv-benchmarks/c/floats-cbmc-regression/float-rounding1.i [2020-12-03 12:35:05,705 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_aebbf6b2-9e11-4c82-a7d5-d6178b51c19e/bin/utaipan/data/a4bfe8814/2bf4274864954869867622d032f617b8/FLAG2447b55a2 [2020-12-03 12:35:05,941 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_aebbf6b2-9e11-4c82-a7d5-d6178b51c19e/bin/utaipan/data/a4bfe8814/2bf4274864954869867622d032f617b8 [2020-12-03 12:35:05,944 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-03 12:35:05,947 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-03 12:35:05,950 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-03 12:35:05,950 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-03 12:35:05,954 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-03 12:35:05,955 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 12:35:05" (1/1) ... [2020-12-03 12:35:05,961 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@197c4fe3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:35:05, skipping insertion in model container [2020-12-03 12:35:05,961 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 12:35:05" (1/1) ... [2020-12-03 12:35:05,971 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-03 12:35:06,047 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-03 12:35:06,766 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_aebbf6b2-9e11-4c82-a7d5-d6178b51c19e/sv-benchmarks/c/floats-cbmc-regression/float-rounding1.i[42829,42842] [2020-12-03 12:35:06,771 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_aebbf6b2-9e11-4c82-a7d5-d6178b51c19e/sv-benchmarks/c/floats-cbmc-regression/float-rounding1.i[42946,42959] [2020-12-03 12:35:06,786 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-03 12:35:06,798 INFO L203 MainTranslator]: Completed pre-run [2020-12-03 12:35:06,835 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_aebbf6b2-9e11-4c82-a7d5-d6178b51c19e/sv-benchmarks/c/floats-cbmc-regression/float-rounding1.i[42829,42842] [2020-12-03 12:35:06,857 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_aebbf6b2-9e11-4c82-a7d5-d6178b51c19e/sv-benchmarks/c/floats-cbmc-regression/float-rounding1.i[42946,42959] [2020-12-03 12:35:06,862 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-03 12:35:07,189 INFO L208 MainTranslator]: Completed translation [2020-12-03 12:35:07,189 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:35:07 WrapperNode [2020-12-03 12:35:07,189 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-03 12:35:07,190 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-03 12:35:07,191 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-03 12:35:07,191 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-03 12:35:07,197 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:35:07" (1/1) ... [2020-12-03 12:35:07,221 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:35:07" (1/1) ... [2020-12-03 12:35:07,246 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-03 12:35:07,247 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-03 12:35:07,247 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-03 12:35:07,248 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-03 12:35:07,256 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:35:07" (1/1) ... [2020-12-03 12:35:07,256 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:35:07" (1/1) ... [2020-12-03 12:35:07,259 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:35:07" (1/1) ... [2020-12-03 12:35:07,259 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:35:07" (1/1) ... [2020-12-03 12:35:07,267 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:35:07" (1/1) ... [2020-12-03 12:35:07,270 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:35:07" (1/1) ... [2020-12-03 12:35:07,273 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:35:07" (1/1) ... [2020-12-03 12:35:07,277 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-03 12:35:07,278 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-03 12:35:07,278 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-03 12:35:07,278 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-03 12:35:07,279 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:35:07" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_aebbf6b2-9e11-4c82-a7d5-d6178b51c19e/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-03 12:35:07,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-03 12:35:07,359 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-03 12:35:07,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-03 12:35:07,359 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-03 12:35:08,072 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-03 12:35:08,072 INFO L299 CfgBuilder]: Removed 20 assume(true) statements. [2020-12-03 12:35:08,095 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:35:08 BoogieIcfgContainer [2020-12-03 12:35:08,095 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-03 12:35:08,103 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-03 12:35:08,103 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-03 12:35:08,106 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-03 12:35:08,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.12 12:35:05" (1/3) ... [2020-12-03 12:35:08,107 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@320e13d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 12:35:08, skipping insertion in model container [2020-12-03 12:35:08,108 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:35:07" (2/3) ... [2020-12-03 12:35:08,108 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@320e13d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 12:35:08, skipping insertion in model container [2020-12-03 12:35:08,108 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:35:08" (3/3) ... [2020-12-03 12:35:08,110 INFO L111 eAbstractionObserver]: Analyzing ICFG float-rounding1.i [2020-12-03 12:35:08,129 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-03 12:35:08,132 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2020-12-03 12:35:08,144 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-12-03 12:35:08,181 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-03 12:35:08,182 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-03 12:35:08,182 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-03 12:35:08,182 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-03 12:35:08,182 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-03 12:35:08,182 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-03 12:35:08,182 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-03 12:35:08,182 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-03 12:35:08,192 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2020-12-03 12:35:08,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-03 12:35:08,197 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:35:08,197 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-12-03 12:35:08,197 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-03 12:35:08,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:35:08,202 INFO L82 PathProgramCache]: Analyzing trace with hash 889523607, now seen corresponding path program 1 times [2020-12-03 12:35:08,210 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-03 12:35:08,210 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1218153069] [2020-12-03 12:35:08,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_aebbf6b2-9e11-4c82-a7d5-d6178b51c19e/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-12-03 12:35:08,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:35:08,319 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-03 12:35:08,322 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-03 12:35:08,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:35:08,359 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-03 12:35:08,360 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1218153069] [2020-12-03 12:35:08,361 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:35:08,361 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-03 12:35:08,362 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937687216] [2020-12-03 12:35:08,366 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-03 12:35:08,366 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-03 12:35:08,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-03 12:35:08,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-03 12:35:08,382 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 3 states. [2020-12-03 12:35:08,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:35:08,457 INFO L93 Difference]: Finished difference Result 99 states and 138 transitions. [2020-12-03 12:35:08,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-03 12:35:08,459 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-12-03 12:35:08,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:35:08,468 INFO L225 Difference]: With dead ends: 99 [2020-12-03 12:35:08,469 INFO L226 Difference]: Without dead ends: 50 [2020-12-03 12:35:08,472 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-03 12:35:08,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-12-03 12:35:08,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 37. [2020-12-03 12:35:08,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-12-03 12:35:08,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 44 transitions. [2020-12-03 12:35:08,506 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 44 transitions. Word has length 6 [2020-12-03 12:35:08,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:35:08,506 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 44 transitions. [2020-12-03 12:35:08,506 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-03 12:35:08,507 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 44 transitions. [2020-12-03 12:35:08,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-03 12:35:08,507 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:35:08,507 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-03 12:35:08,723 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-03 12:35:08,727 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-03 12:35:08,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:35:08,728 INFO L82 PathProgramCache]: Analyzing trace with hash 1806855123, now seen corresponding path program 1 times [2020-12-03 12:35:08,728 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-03 12:35:08,729 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1545857509] [2020-12-03 12:35:08,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_aebbf6b2-9e11-4c82-a7d5-d6178b51c19e/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 [2020-12-03 12:35:08,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:35:08,815 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-03 12:35:08,817 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-03 12:35:09,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:35:09,012 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-03 12:35:09,013 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1545857509] [2020-12-03 12:35:09,013 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:35:09,013 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-03 12:35:09,013 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532885648] [2020-12-03 12:35:09,014 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-03 12:35:09,015 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-03 12:35:09,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-03 12:35:09,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-03 12:35:09,016 INFO L87 Difference]: Start difference. First operand 37 states and 44 transitions. Second operand 5 states. [2020-12-03 12:35:09,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:35:09,878 INFO L93 Difference]: Finished difference Result 46 states and 53 transitions. [2020-12-03 12:35:09,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-03 12:35:09,879 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2020-12-03 12:35:09,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:35:09,881 INFO L225 Difference]: With dead ends: 46 [2020-12-03 12:35:09,881 INFO L226 Difference]: Without dead ends: 44 [2020-12-03 12:35:09,882 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-03 12:35:09,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-12-03 12:35:09,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 35. [2020-12-03 12:35:09,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-12-03 12:35:09,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 42 transitions. [2020-12-03 12:35:09,888 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 42 transitions. Word has length 7 [2020-12-03 12:35:09,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:35:09,889 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 42 transitions. [2020-12-03 12:35:09,889 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-03 12:35:09,889 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 42 transitions. [2020-12-03 12:35:09,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-03 12:35:09,890 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:35:09,890 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 12:35:10,102 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-03 12:35:10,103 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-03 12:35:10,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:35:10,103 INFO L82 PathProgramCache]: Analyzing trace with hash 961369448, now seen corresponding path program 1 times [2020-12-03 12:35:10,104 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-03 12:35:10,104 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1891950404] [2020-12-03 12:35:10,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_aebbf6b2-9e11-4c82-a7d5-d6178b51c19e/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 [2020-12-03 12:35:10,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:35:10,222 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-03 12:35:10,223 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-03 12:35:10,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:35:10,237 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-03 12:35:10,237 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1891950404] [2020-12-03 12:35:10,237 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:35:10,238 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-03 12:35:10,238 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906112845] [2020-12-03 12:35:10,238 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-03 12:35:10,238 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-03 12:35:10,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-03 12:35:10,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-03 12:35:10,240 INFO L87 Difference]: Start difference. First operand 35 states and 42 transitions. Second operand 3 states. [2020-12-03 12:35:10,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:35:10,289 INFO L93 Difference]: Finished difference Result 59 states and 69 transitions. [2020-12-03 12:35:10,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-03 12:35:10,289 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-12-03 12:35:10,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:35:10,290 INFO L225 Difference]: With dead ends: 59 [2020-12-03 12:35:10,290 INFO L226 Difference]: Without dead ends: 35 [2020-12-03 12:35:10,291 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-03 12:35:10,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-12-03 12:35:10,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2020-12-03 12:35:10,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-12-03 12:35:10,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 34 transitions. [2020-12-03 12:35:10,296 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 34 transitions. Word has length 11 [2020-12-03 12:35:10,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:35:10,296 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 34 transitions. [2020-12-03 12:35:10,296 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-03 12:35:10,296 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 34 transitions. [2020-12-03 12:35:10,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-12-03 12:35:10,297 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:35:10,297 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-03 12:35:10,521 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-12-03 12:35:10,521 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-03 12:35:10,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:35:10,522 INFO L82 PathProgramCache]: Analyzing trace with hash -1557632932, now seen corresponding path program 1 times [2020-12-03 12:35:10,522 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-03 12:35:10,523 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [765912665] [2020-12-03 12:35:10,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_aebbf6b2-9e11-4c82-a7d5-d6178b51c19e/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 [2020-12-03 12:35:10,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:35:10,647 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-03 12:35:10,649 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-03 12:35:10,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:35:10,849 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-03 12:35:10,849 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [765912665] [2020-12-03 12:35:10,849 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:35:10,849 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-03 12:35:10,850 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954673933] [2020-12-03 12:35:10,850 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-03 12:35:10,850 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-03 12:35:10,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-03 12:35:10,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-03 12:35:10,851 INFO L87 Difference]: Start difference. First operand 35 states and 34 transitions. Second operand 5 states. [2020-12-03 12:35:11,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:35:11,503 INFO L93 Difference]: Finished difference Result 35 states and 34 transitions. [2020-12-03 12:35:11,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-03 12:35:11,513 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-12-03 12:35:11,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:35:11,514 INFO L225 Difference]: With dead ends: 35 [2020-12-03 12:35:11,514 INFO L226 Difference]: Without dead ends: 33 [2020-12-03 12:35:11,515 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-03 12:35:11,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-12-03 12:35:11,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-12-03 12:35:11,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-12-03 12:35:11,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 32 transitions. [2020-12-03 12:35:11,520 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 32 transitions. Word has length 14 [2020-12-03 12:35:11,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:35:11,521 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 32 transitions. [2020-12-03 12:35:11,521 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-03 12:35:11,521 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 32 transitions. [2020-12-03 12:35:11,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-03 12:35:11,522 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:35:11,522 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] [2020-12-03 12:35:11,729 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-12-03 12:35:11,729 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-03 12:35:11,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:35:11,730 INFO L82 PathProgramCache]: Analyzing trace with hash 1314857025, now seen corresponding path program 1 times [2020-12-03 12:35:11,730 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-03 12:35:11,731 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2134415963] [2020-12-03 12:35:11,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_aebbf6b2-9e11-4c82-a7d5-d6178b51c19e/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 [2020-12-03 12:35:11,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:35:11,871 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 13 conjunts are in the unsatisfiable core [2020-12-03 12:35:11,873 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-03 12:35:11,975 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-03 12:35:11,976 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-03 12:35:12,890 WARN L197 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2020-12-03 12:35:12,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:35:12,945 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-03 12:35:12,945 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2134415963] [2020-12-03 12:35:12,945 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:35:12,945 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-03 12:35:12,945 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968197388] [2020-12-03 12:35:12,946 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-03 12:35:12,946 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-03 12:35:12,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-03 12:35:12,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-03 12:35:12,947 INFO L87 Difference]: Start difference. First operand 33 states and 32 transitions. Second operand 9 states. [2020-12-03 12:35:13,560 WARN L197 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2020-12-03 12:35:14,498 WARN L197 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2020-12-03 12:35:14,725 WARN L197 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 29 [2020-12-03 12:35:15,041 WARN L197 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 36 [2020-12-03 12:35:16,818 WARN L197 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 59 DAG size of output: 41 [2020-12-03 12:35:17,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:35:17,096 INFO L93 Difference]: Finished difference Result 33 states and 32 transitions. [2020-12-03 12:35:17,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-12-03 12:35:17,097 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 23 [2020-12-03 12:35:17,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:35:17,101 INFO L225 Difference]: With dead ends: 33 [2020-12-03 12:35:17,101 INFO L226 Difference]: Without dead ends: 31 [2020-12-03 12:35:17,102 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=75, Invalid=165, Unknown=0, NotChecked=0, Total=240 [2020-12-03 12:35:17,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-12-03 12:35:17,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-12-03 12:35:17,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-12-03 12:35:17,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 30 transitions. [2020-12-03 12:35:17,110 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 30 transitions. Word has length 23 [2020-12-03 12:35:17,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:35:17,110 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 30 transitions. [2020-12-03 12:35:17,111 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-03 12:35:17,111 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 30 transitions. [2020-12-03 12:35:17,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-12-03 12:35:17,111 INFO L414 BasicCegarLoop]: Found error trace [2020-12-03 12:35:17,111 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] [2020-12-03 12:35:17,312 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-12-03 12:35:17,312 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-03 12:35:17,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-03 12:35:17,313 INFO L82 PathProgramCache]: Analyzing trace with hash 240169883, now seen corresponding path program 1 times [2020-12-03 12:35:17,313 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-03 12:35:17,313 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [786165308] [2020-12-03 12:35:17,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_aebbf6b2-9e11-4c82-a7d5-d6178b51c19e/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 [2020-12-03 12:35:17,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-03 12:35:17,496 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 13 conjunts are in the unsatisfiable core [2020-12-03 12:35:17,498 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-03 12:35:17,597 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-03 12:35:17,599 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-03 12:35:18,655 WARN L197 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2020-12-03 12:35:18,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-03 12:35:18,719 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-03 12:35:18,719 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [786165308] [2020-12-03 12:35:18,720 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-03 12:35:18,720 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-12-03 12:35:18,720 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234997626] [2020-12-03 12:35:18,721 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-03 12:35:18,721 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-03 12:35:18,722 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-03 12:35:18,722 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-03 12:35:18,723 INFO L87 Difference]: Start difference. First operand 31 states and 30 transitions. Second operand 9 states. [2020-12-03 12:35:19,671 WARN L197 SmtUtils]: Spent 402.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2020-12-03 12:35:20,593 WARN L197 SmtUtils]: Spent 641.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2020-12-03 12:35:21,987 WARN L197 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 42 DAG size of output: 34 [2020-12-03 12:35:23,745 WARN L197 SmtUtils]: Spent 1.29 s on a formula simplification that was a NOOP. DAG size: 53 [2020-12-03 12:35:25,510 WARN L197 SmtUtils]: Spent 1.59 s on a formula simplification. DAG size of input: 59 DAG size of output: 41 [2020-12-03 12:35:25,789 WARN L197 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 36 [2020-12-03 12:35:26,039 WARN L197 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 29 [2020-12-03 12:35:26,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-03 12:35:26,221 INFO L93 Difference]: Finished difference Result 31 states and 30 transitions. [2020-12-03 12:35:26,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-12-03 12:35:26,226 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 30 [2020-12-03 12:35:26,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-03 12:35:26,226 INFO L225 Difference]: With dead ends: 31 [2020-12-03 12:35:26,226 INFO L226 Difference]: Without dead ends: 0 [2020-12-03 12:35:26,227 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 7.4s TimeCoverageRelationStatistics Valid=78, Invalid=162, Unknown=0, NotChecked=0, Total=240 [2020-12-03 12:35:26,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-03 12:35:26,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-03 12:35:26,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-03 12:35:26,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-03 12:35:26,228 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 30 [2020-12-03 12:35:26,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-03 12:35:26,228 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-03 12:35:26,229 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-03 12:35:26,229 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-03 12:35:26,229 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-03 12:35:26,432 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-12-03 12:35:26,434 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-03 12:35:27,533 WARN L197 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 78 DAG size of output: 38 [2020-12-03 12:35:27,536 INFO L262 CegarLoopResult]: For program point L2-1(lines 2 4) no Hoare annotation was computed. [2020-12-03 12:35:27,536 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 1110) no Hoare annotation was computed. [2020-12-03 12:35:27,537 INFO L262 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-12-03 12:35:27,537 INFO L262 CegarLoopResult]: For program point L3-2(line 3) no Hoare annotation was computed. [2020-12-03 12:35:27,537 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-03 12:35:27,537 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-03 12:35:27,537 INFO L262 CegarLoopResult]: For program point L1110(line 1110) no Hoare annotation was computed. [2020-12-03 12:35:27,537 INFO L262 CegarLoopResult]: For program point L1110-1(line 1110) no Hoare annotation was computed. [2020-12-03 12:35:27,537 INFO L258 CegarLoopResult]: At program point L1110-3(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))))))) [2020-12-03 12:35:27,537 INFO L262 CegarLoopResult]: For program point L1110-4(line 1110) no Hoare annotation was computed. [2020-12-03 12:35:27,537 INFO L262 CegarLoopResult]: For program point L1110-5(line 1110) no Hoare annotation was computed. [2020-12-03 12:35:27,537 INFO L265 CegarLoopResult]: At program point L1110-7(lines 1097 1113) the Hoare annotation is: true [2020-12-03 12:35:27,538 INFO L265 CegarLoopResult]: At program point L1135(lines 1116 1136) the Hoare annotation is: true [2020-12-03 12:35:27,538 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 1110) no Hoare annotation was computed. [2020-12-03 12:35:27,538 INFO L262 CegarLoopResult]: For program point L1103(line 1103) no Hoare annotation was computed. [2020-12-03 12:35:27,538 INFO L262 CegarLoopResult]: For program point L1103-1(line 1103) no Hoare annotation was computed. [2020-12-03 12:35:27,538 INFO L262 CegarLoopResult]: For program point L1103-3(line 1103) no Hoare annotation was computed. [2020-12-03 12:35:27,538 INFO L262 CegarLoopResult]: For program point L1103-4(line 1103) no Hoare annotation was computed. [2020-12-03 12:35:27,538 INFO L262 CegarLoopResult]: For program point L1103-5(line 1103) no Hoare annotation was computed. [2020-12-03 12:35:27,539 INFO L262 CegarLoopResult]: For program point L1103-7(line 1103) no Hoare annotation was computed. [2020-12-03 12:35:27,539 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-03 12:35:27,539 INFO L262 CegarLoopResult]: For program point L-1-1(line -1) no Hoare annotation was computed. [2020-12-03 12:35:27,539 INFO L262 CegarLoopResult]: For program point L-1-3(line -1) no Hoare annotation was computed. [2020-12-03 12:35:27,541 INFO L262 CegarLoopResult]: For program point L-1-5(line -1) no Hoare annotation was computed. [2020-12-03 12:35:27,541 INFO L262 CegarLoopResult]: For program point L-1-7(line -1) no Hoare annotation was computed. [2020-12-03 12:35:27,542 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 1103) no Hoare annotation was computed. [2020-12-03 12:35:27,542 INFO L262 CegarLoopResult]: For program point L-1-9(line -1) no Hoare annotation was computed. [2020-12-03 12:35:27,542 INFO L262 CegarLoopResult]: For program point L-1-10(line -1) no Hoare annotation was computed. [2020-12-03 12:35:27,542 INFO L262 CegarLoopResult]: For program point L-1-12(line -1) no Hoare annotation was computed. [2020-12-03 12:35:27,542 INFO L262 CegarLoopResult]: For program point L-1-14(line -1) no Hoare annotation was computed. [2020-12-03 12:35:27,542 INFO L262 CegarLoopResult]: For program point L-1-16(line -1) no Hoare annotation was computed. [2020-12-03 12:35:27,542 INFO L262 CegarLoopResult]: For program point L-1-18(line -1) no Hoare annotation was computed. [2020-12-03 12:35:27,543 INFO L262 CegarLoopResult]: For program point L-1-19(line -1) no Hoare annotation was computed. [2020-12-03 12:35:27,543 INFO L262 CegarLoopResult]: For program point L-1-21(line -1) no Hoare annotation was computed. [2020-12-03 12:35:27,543 INFO L262 CegarLoopResult]: For program point L-1-23(line -1) no Hoare annotation was computed. [2020-12-03 12:35:27,543 INFO L262 CegarLoopResult]: For program point L-1-25(line -1) no Hoare annotation was computed. [2020-12-03 12:35:27,544 INFO L262 CegarLoopResult]: For program point L-1-27(line -1) no Hoare annotation was computed. [2020-12-03 12:35:27,544 INFO L262 CegarLoopResult]: For program point L-1-28(line -1) no Hoare annotation was computed. [2020-12-03 12:35:27,544 INFO L262 CegarLoopResult]: For program point L-1-30(line -1) no Hoare annotation was computed. [2020-12-03 12:35:27,545 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-03 12:35:27,545 INFO L262 CegarLoopResult]: For program point L-1-32(line -1) no Hoare annotation was computed. [2020-12-03 12:35:27,545 INFO L262 CegarLoopResult]: For program point L-1-34(line -1) no Hoare annotation was computed. [2020-12-03 12:35:27,545 INFO L262 CegarLoopResult]: For program point L-1-36(line -1) no Hoare annotation was computed. [2020-12-03 12:35:27,545 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 1103) no Hoare annotation was computed. [2020-12-03 12:35:27,545 INFO L262 CegarLoopResult]: For program point L2(lines 2 4) no Hoare annotation was computed. [2020-12-03 12:35:27,555 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-12-03 12:35:27,555 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f2,QUANTIFIED] [2020-12-03 12:35:27,555 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-12-03 12:35:27,556 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f1,QUANTIFIED] [2020-12-03 12:35:27,556 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f1,QUANTIFIED] [2020-12-03 12:35:27,556 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f2,QUANTIFIED] [2020-12-03 12:35:27,556 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f1,QUANTIFIED] [2020-12-03 12:35:27,556 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-12-03 12:35:27,557 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f2,QUANTIFIED] [2020-12-03 12:35:27,557 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-12-03 12:35:27,559 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardNegative [2020-12-03 12:35:27,559 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2020-12-03 12:35:27,560 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2020-12-03 12:35:27,561 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2020-12-03 12:35:27,561 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2020-12-03 12:35:27,567 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-12-03 12:35:27,567 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f2,QUANTIFIED] [2020-12-03 12:35:27,567 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-12-03 12:35:27,567 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f1,QUANTIFIED] [2020-12-03 12:35:27,568 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f1,QUANTIFIED] [2020-12-03 12:35:27,568 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f2,QUANTIFIED] [2020-12-03 12:35:27,568 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f1,QUANTIFIED] [2020-12-03 12:35:27,568 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-12-03 12:35:27,568 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f2,QUANTIFIED] [2020-12-03 12:35:27,568 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-12-03 12:35:27,569 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardNegative [2020-12-03 12:35:27,569 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2020-12-03 12:35:27,569 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2020-12-03 12:35:27,569 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2020-12-03 12:35:27,569 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2020-12-03 12:35:27,572 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.12 12:35:27 BoogieIcfgContainer [2020-12-03 12:35:27,573 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-03 12:35:27,580 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-03 12:35:27,581 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-03 12:35:27,581 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-03 12:35:27,581 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:35:08" (3/4) ... [2020-12-03 12:35:27,584 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-03 12:35:27,598 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 35 nodes and edges [2020-12-03 12:35:27,599 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2020-12-03 12:35:27,599 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2020-12-03 12:35:27,600 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-12-03 12:35:27,627 WARN L220 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))) [2020-12-03 12:35:27,647 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_aebbf6b2-9e11-4c82-a7d5-d6178b51c19e/bin/utaipan/witness.graphml [2020-12-03 12:35:27,647 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-03 12:35:27,648 INFO L168 Benchmark]: Toolchain (without parser) took 21700.85 ms. Allocated memory was 62.9 MB in the beginning and 102.8 MB in the end (delta: 39.8 MB). Free memory was 42.8 MB in the beginning and 63.6 MB in the end (delta: -20.8 MB). Peak memory consumption was 19.8 MB. Max. memory is 16.1 GB. [2020-12-03 12:35:27,649 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 62.9 MB. Free memory is still 45.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-03 12:35:27,649 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1239.56 ms. Allocated memory was 62.9 MB in the beginning and 79.7 MB in the end (delta: 16.8 MB). Free memory was 42.7 MB in the beginning and 49.7 MB in the end (delta: -7.0 MB). Peak memory consumption was 36.2 MB. Max. memory is 16.1 GB. [2020-12-03 12:35:27,650 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.21 ms. Allocated memory is still 79.7 MB. Free memory was 49.7 MB in the beginning and 47.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-03 12:35:27,650 INFO L168 Benchmark]: Boogie Preprocessor took 29.46 ms. Allocated memory is still 79.7 MB. Free memory was 46.9 MB in the beginning and 45.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-03 12:35:27,651 INFO L168 Benchmark]: RCFGBuilder took 822.23 ms. Allocated memory is still 79.7 MB. Free memory was 45.5 MB in the beginning and 58.9 MB in the end (delta: -13.4 MB). Peak memory consumption was 22.9 MB. Max. memory is 16.1 GB. [2020-12-03 12:35:27,652 INFO L168 Benchmark]: TraceAbstraction took 19470.45 ms. Allocated memory was 79.7 MB in the beginning and 102.8 MB in the end (delta: 23.1 MB). Free memory was 58.9 MB in the beginning and 66.9 MB in the end (delta: -8.0 MB). Peak memory consumption was 13.9 MB. Max. memory is 16.1 GB. [2020-12-03 12:35:27,652 INFO L168 Benchmark]: Witness Printer took 66.63 ms. Allocated memory is still 102.8 MB. Free memory was 66.9 MB in the beginning and 63.6 MB in the end (delta: 3.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-03 12:35:27,655 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 62.9 MB. Free memory is still 45.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 1239.56 ms. Allocated memory was 62.9 MB in the beginning and 79.7 MB in the end (delta: 16.8 MB). Free memory was 42.7 MB in the beginning and 49.7 MB in the end (delta: -7.0 MB). Peak memory consumption was 36.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 56.21 ms. Allocated memory is still 79.7 MB. Free memory was 49.7 MB in the beginning and 47.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 29.46 ms. Allocated memory is still 79.7 MB. Free memory was 46.9 MB in the beginning and 45.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 822.23 ms. Allocated memory is still 79.7 MB. Free memory was 45.5 MB in the beginning and 58.9 MB in the end (delta: -13.4 MB). Peak memory consumption was 22.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 19470.45 ms. Allocated memory was 79.7 MB in the beginning and 102.8 MB in the end (delta: 23.1 MB). Free memory was 58.9 MB in the beginning and 66.9 MB in the end (delta: -8.0 MB). Peak memory consumption was 13.9 MB. Max. memory is 16.1 GB. * Witness Printer took 66.63 ms. Allocated memory is still 102.8 MB. Free memory was 66.9 MB in the beginning and 63.6 MB in the end (delta: 3.3 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.traceabstraction: - PositiveResult [Line: 1110]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 1110]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 1103]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 1103]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 1097]: Loop Invariant [2020-12-03 12:35:27,667 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-12-03 12:35:27,667 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f2,QUANTIFIED] [2020-12-03 12:35:27,667 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-12-03 12:35:27,667 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f1,QUANTIFIED] [2020-12-03 12:35:27,668 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f1,QUANTIFIED] [2020-12-03 12:35:27,668 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f2,QUANTIFIED] [2020-12-03 12:35:27,668 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f1,QUANTIFIED] [2020-12-03 12:35:27,668 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-12-03 12:35:27,668 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f2,QUANTIFIED] [2020-12-03 12:35:27,668 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-12-03 12:35:27,669 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardNegative [2020-12-03 12:35:27,669 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2020-12-03 12:35:27,669 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2020-12-03 12:35:27,669 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2020-12-03 12:35:27,669 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2020-12-03 12:35:27,670 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-12-03 12:35:27,670 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f2,QUANTIFIED] [2020-12-03 12:35:27,670 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-12-03 12:35:27,671 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f1,QUANTIFIED] [2020-12-03 12:35:27,671 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f1,QUANTIFIED] [2020-12-03 12:35:27,671 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f2,QUANTIFIED] [2020-12-03 12:35:27,671 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f1,QUANTIFIED] [2020-12-03 12:35:27,671 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-12-03 12:35:27,671 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_roundingTest_~f2,QUANTIFIED] [2020-12-03 12:35:27,672 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_4,QUANTIFIED] [2020-12-03 12:35:27,672 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundTowardNegative [2020-12-03 12:35:27,672 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2020-12-03 12:35:27,672 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2020-12-03 12:35:27,672 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] [2020-12-03 12:35:27,672 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_prenex_2,QUANTIFIED] 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))) - InvariantResult [Line: 1097]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1116]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 45 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 18.2s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 13.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 194 SDtfs, 256 SDslu, 148 SDs, 0 SdLazy, 234 SolverSat, 42 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 101 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 11.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred 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, 22 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 8 NumberOfFragments, 53 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 111 FormulaSimplificationTreeSizeReductionInter, 1.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 91 NumberOfCodeBlocks, 91 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 85 ConstructedInterpolants, 34 QuantifiedInterpolants, 20316 SizeOfPredicates, 44 NumberOfNonLiveVariables, 271 ConjunctsInSsa, 48 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...