./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound20.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3796fd32-4f6d-48fb-afd3-c813d5976247/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3796fd32-4f6d-48fb-afd3-c813d5976247/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3796fd32-4f6d-48fb-afd3-c813d5976247/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3796fd32-4f6d-48fb-afd3-c813d5976247/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound20.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3796fd32-4f6d-48fb-afd3-c813d5976247/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3796fd32-4f6d-48fb-afd3-c813d5976247/bin/utaipan-aC7eJsxGYH --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 f7d8666e561276f52fdb57f95324433fec798c5d47b9bb4ca4cdc06eae6ff06b --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 05:37:28,764 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 05:37:28,767 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 05:37:28,831 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 05:37:28,832 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 05:37:28,837 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 05:37:28,839 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 05:37:28,843 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 05:37:28,846 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 05:37:28,853 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 05:37:28,855 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 05:37:28,857 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 05:37:28,857 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 05:37:28,860 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 05:37:28,862 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 05:37:28,871 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 05:37:28,872 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 05:37:28,873 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 05:37:28,875 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 05:37:28,877 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 05:37:28,879 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 05:37:28,882 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 05:37:28,885 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 05:37:28,886 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 05:37:28,896 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 05:37:28,896 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 05:37:28,896 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 05:37:28,898 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 05:37:28,899 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 05:37:28,900 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 05:37:28,900 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 05:37:28,901 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 05:37:28,903 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 05:37:28,905 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 05:37:28,906 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 05:37:28,907 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 05:37:28,907 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 05:37:28,908 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 05:37:28,908 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 05:37:28,909 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 05:37:28,910 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 05:37:28,911 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3796fd32-4f6d-48fb-afd3-c813d5976247/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-03 05:37:28,956 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 05:37:28,957 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 05:37:28,958 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 05:37:28,958 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 05:37:28,958 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 05:37:28,959 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 05:37:28,959 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 05:37:28,959 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 05:37:28,959 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 05:37:28,960 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 05:37:28,961 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 05:37:28,961 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 05:37:28,961 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 05:37:28,962 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 05:37:28,962 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 05:37:28,963 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 05:37:28,963 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-03 05:37:28,963 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 05:37:28,963 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-03 05:37:28,964 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 05:37:28,964 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 05:37:28,964 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 05:37:28,964 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 05:37:28,965 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 05:37:28,965 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-03 05:37:28,965 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 05:37:28,965 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 05:37:28,966 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 05:37:28,966 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 05:37:28,967 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 05:37:28,968 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:37:28,968 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 05:37:28,968 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 05:37:28,969 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 05:37:28,969 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 05:37:28,969 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 05:37:28,969 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 05:37:28,970 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 05:37:28,970 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 05:37:28,970 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_worker_vcloud-master_on_vcloud-master/run_dir_3796fd32-4f6d-48fb-afd3-c813d5976247/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3796fd32-4f6d-48fb-afd3-c813d5976247/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f7d8666e561276f52fdb57f95324433fec798c5d47b9bb4ca4cdc06eae6ff06b [2021-11-03 05:37:29,261 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 05:37:29,302 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 05:37:29,305 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 05:37:29,307 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 05:37:29,307 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 05:37:29,308 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3796fd32-4f6d-48fb-afd3-c813d5976247/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound20.i [2021-11-03 05:37:29,392 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3796fd32-4f6d-48fb-afd3-c813d5976247/bin/utaipan-aC7eJsxGYH/data/2e4657c84/419d4353e6264dd7ae087bd5a4994974/FLAGa8d9ca4ec [2021-11-03 05:37:29,946 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 05:37:29,948 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3796fd32-4f6d-48fb-afd3-c813d5976247/sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound20.i [2021-11-03 05:37:29,960 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3796fd32-4f6d-48fb-afd3-c813d5976247/bin/utaipan-aC7eJsxGYH/data/2e4657c84/419d4353e6264dd7ae087bd5a4994974/FLAGa8d9ca4ec [2021-11-03 05:37:30,405 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3796fd32-4f6d-48fb-afd3-c813d5976247/bin/utaipan-aC7eJsxGYH/data/2e4657c84/419d4353e6264dd7ae087bd5a4994974 [2021-11-03 05:37:30,407 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 05:37:30,408 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 05:37:30,410 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 05:37:30,410 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 05:37:30,413 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 05:37:30,414 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:37:30" (1/1) ... [2021-11-03 05:37:30,416 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@503fcdc2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:37:30, skipping insertion in model container [2021-11-03 05:37:30,416 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:37:30" (1/1) ... [2021-11-03 05:37:30,431 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 05:37:30,446 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:37:30,670 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3796fd32-4f6d-48fb-afd3-c813d5976247/sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound20.i[948,961] [2021-11-03 05:37:30,693 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator has thrown an exception: java.lang.UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: sqrt at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:846) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.handleUnaryFloatFunction(StandardFunctionHandler.java:1699) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.standardfunctions.StandardFunctionHandler.translateStandardFunction(StandardFunctionHandler.java:236) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1430) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:267) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:729) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:282) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:1381) 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:1068) 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:1452) 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:3247) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:2321) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.CHandler.visit(CHandler.java:594) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.PRDispatcher.dispatch(PRDispatcher.java:134) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.translate(MainTranslator.java:192) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.run(MainTranslator.java:115) at de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.MainTranslator.(MainTranslator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver.finish(CACSL2BoogieTranslatorObserver.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-03 05:37:30,704 INFO L168 Benchmark]: Toolchain (without parser) took 293.54 ms. Allocated memory is still 96.5 MB. Free memory was 61.5 MB in the beginning and 72.7 MB in the end (delta: -11.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-03 05:37:30,706 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 96.5 MB. Free memory was 67.6 MB in the beginning and 67.5 MB in the end (delta: 32.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 05:37:30,708 INFO L168 Benchmark]: CACSL2BoogieTranslator took 291.15 ms. Allocated memory is still 96.5 MB. Free memory was 61.3 MB in the beginning and 72.7 MB in the end (delta: -11.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-03 05:37:30,711 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 96.5 MB. Free memory was 67.6 MB in the beginning and 67.5 MB in the end (delta: 32.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 291.15 ms. Allocated memory is still 96.5 MB. Free memory was 61.3 MB in the beginning and 72.7 MB in the end (delta: -11.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - ExceptionOrErrorResult: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: sqrt de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: UnsupportedOperationException: floating point operation not supported in non-bitprecise translation: sqrt: de.uni_freiburg.informatik.ultimate.cdt.translation.implementation.base.expressiontranslation.IntegerTranslation.constructOtherUnaryFloatOperation(IntegerTranslation.java:846) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3796fd32-4f6d-48fb-afd3-c813d5976247/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3796fd32-4f6d-48fb-afd3-c813d5976247/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3796fd32-4f6d-48fb-afd3-c813d5976247/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3796fd32-4f6d-48fb-afd3-c813d5976247/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound20.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3796fd32-4f6d-48fb-afd3-c813d5976247/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3796fd32-4f6d-48fb-afd3-c813d5976247/bin/utaipan-aC7eJsxGYH --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 f7d8666e561276f52fdb57f95324433fec798c5d47b9bb4ca4cdc06eae6ff06b --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 05:37:32,953 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 05:37:32,955 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 05:37:32,989 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 05:37:32,995 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 05:37:32,997 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 05:37:32,999 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 05:37:33,001 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 05:37:33,005 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 05:37:33,009 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 05:37:33,010 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 05:37:33,012 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 05:37:33,014 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 05:37:33,018 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 05:37:33,020 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 05:37:33,024 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 05:37:33,026 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 05:37:33,031 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 05:37:33,036 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 05:37:33,039 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 05:37:33,044 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 05:37:33,046 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 05:37:33,048 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 05:37:33,049 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 05:37:33,053 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 05:37:33,053 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 05:37:33,054 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 05:37:33,055 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 05:37:33,055 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 05:37:33,056 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 05:37:33,057 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 05:37:33,058 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 05:37:33,058 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 05:37:33,059 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 05:37:33,061 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 05:37:33,061 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 05:37:33,062 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 05:37:33,062 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 05:37:33,062 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 05:37:33,064 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 05:37:33,064 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 05:37:33,065 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3796fd32-4f6d-48fb-afd3-c813d5976247/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-03 05:37:33,092 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 05:37:33,092 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 05:37:33,093 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 05:37:33,093 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 05:37:33,093 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 05:37:33,093 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 05:37:33,094 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 05:37:33,094 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 05:37:33,094 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 05:37:33,095 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 05:37:33,095 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-03 05:37:33,095 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-03 05:37:33,095 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 05:37:33,095 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 05:37:33,096 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 05:37:33,096 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 05:37:33,096 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 05:37:33,096 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 05:37:33,096 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 05:37:33,096 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-03 05:37:33,096 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 05:37:33,097 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 05:37:33,097 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 05:37:33,097 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 05:37:33,097 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 05:37:33,097 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 05:37:33,097 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:37:33,097 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 05:37:33,098 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 05:37:33,098 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 05:37:33,098 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 05:37:33,098 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 05:37:33,098 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 05:37:33,098 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 05:37:33,099 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 05:37:33,101 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_worker_vcloud-master_on_vcloud-master/run_dir_3796fd32-4f6d-48fb-afd3-c813d5976247/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3796fd32-4f6d-48fb-afd3-c813d5976247/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f7d8666e561276f52fdb57f95324433fec798c5d47b9bb4ca4cdc06eae6ff06b [2021-11-03 05:37:33,521 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 05:37:33,552 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 05:37:33,555 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 05:37:33,556 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 05:37:33,557 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 05:37:33,560 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3796fd32-4f6d-48fb-afd3-c813d5976247/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound20.i [2021-11-03 05:37:33,633 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3796fd32-4f6d-48fb-afd3-c813d5976247/bin/utaipan-aC7eJsxGYH/data/e2c0deacf/20edef888f13477a8c7b5a9b2af086ca/FLAG981101339 [2021-11-03 05:37:34,174 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 05:37:34,178 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3796fd32-4f6d-48fb-afd3-c813d5976247/sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound20.i [2021-11-03 05:37:34,186 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3796fd32-4f6d-48fb-afd3-c813d5976247/bin/utaipan-aC7eJsxGYH/data/e2c0deacf/20edef888f13477a8c7b5a9b2af086ca/FLAG981101339 [2021-11-03 05:37:34,515 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3796fd32-4f6d-48fb-afd3-c813d5976247/bin/utaipan-aC7eJsxGYH/data/e2c0deacf/20edef888f13477a8c7b5a9b2af086ca [2021-11-03 05:37:34,517 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 05:37:34,520 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 05:37:34,523 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 05:37:34,523 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 05:37:34,527 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 05:37:34,528 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:37:34" (1/1) ... [2021-11-03 05:37:34,529 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a1676af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:37:34, skipping insertion in model container [2021-11-03 05:37:34,529 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:37:34" (1/1) ... [2021-11-03 05:37:34,537 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 05:37:34,562 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:37:34,743 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3796fd32-4f6d-48fb-afd3-c813d5976247/sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound20.i[948,961] [2021-11-03 05:37:34,796 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:37:34,807 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 05:37:34,842 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3796fd32-4f6d-48fb-afd3-c813d5976247/sv-benchmarks/c/nla-digbench-scaling/knuth_valuebound20.i[948,961] [2021-11-03 05:37:34,866 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:37:34,894 INFO L208 MainTranslator]: Completed translation [2021-11-03 05:37:34,894 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:37:34 WrapperNode [2021-11-03 05:37:34,895 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 05:37:34,896 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 05:37:34,896 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 05:37:34,896 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 05:37:34,903 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:37:34" (1/1) ... [2021-11-03 05:37:34,922 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:37:34" (1/1) ... [2021-11-03 05:37:34,944 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 05:37:34,945 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 05:37:34,945 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 05:37:34,945 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 05:37:34,953 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:37:34" (1/1) ... [2021-11-03 05:37:34,953 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:37:34" (1/1) ... [2021-11-03 05:37:34,957 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:37:34" (1/1) ... [2021-11-03 05:37:34,957 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:37:34" (1/1) ... [2021-11-03 05:37:34,965 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:37:34" (1/1) ... [2021-11-03 05:37:34,969 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:37:34" (1/1) ... [2021-11-03 05:37:34,971 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:37:34" (1/1) ... [2021-11-03 05:37:34,974 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 05:37:34,975 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 05:37:34,975 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 05:37:34,976 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 05:37:34,976 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:37:34" (1/1) ... [2021-11-03 05:37:34,983 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:37:34,993 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3796fd32-4f6d-48fb-afd3-c813d5976247/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 05:37:35,007 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3796fd32-4f6d-48fb-afd3-c813d5976247/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 05:37:35,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3796fd32-4f6d-48fb-afd3-c813d5976247/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 05:37:35,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 05:37:35,055 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 05:37:35,055 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 05:37:35,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 05:37:38,264 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 05:37:38,265 INFO L299 CfgBuilder]: Removed 21 assume(true) statements. [2021-11-03 05:37:38,267 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:37:38 BoogieIcfgContainer [2021-11-03 05:37:38,267 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 05:37:38,269 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 05:37:38,269 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 05:37:38,272 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 05:37:38,273 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 05:37:34" (1/3) ... [2021-11-03 05:37:38,273 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71b5ee24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:37:38, skipping insertion in model container [2021-11-03 05:37:38,274 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:37:34" (2/3) ... [2021-11-03 05:37:38,274 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71b5ee24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:37:38, skipping insertion in model container [2021-11-03 05:37:38,274 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:37:38" (3/3) ... [2021-11-03 05:37:38,276 INFO L111 eAbstractionObserver]: Analyzing ICFG knuth_valuebound20.i [2021-11-03 05:37:38,281 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 05:37:38,281 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-11-03 05:37:38,324 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 05:37:38,331 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-03 05:37:38,331 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-11-03 05:37:38,343 INFO L276 IsEmpty]: Start isEmpty. Operand has 34 states, 29 states have (on average 1.6206896551724137) internal successors, (47), 33 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:37:38,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-03 05:37:38,358 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:37:38,358 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:37:38,359 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-03 05:37:38,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:37:38,365 INFO L85 PathProgramCache]: Analyzing trace with hash -144177098, now seen corresponding path program 1 times [2021-11-03 05:37:38,376 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:37:38,377 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1283371861] [2021-11-03 05:37:38,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:37:38,378 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:37:38,379 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3796fd32-4f6d-48fb-afd3-c813d5976247/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:37:38,394 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3796fd32-4f6d-48fb-afd3-c813d5976247/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:37:38,395 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3796fd32-4f6d-48fb-afd3-c813d5976247/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 05:37:38,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:37:38,863 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-03 05:37:38,867 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:37:39,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:37:39,058 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:37:39,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:37:39,239 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:37:39,240 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1283371861] [2021-11-03 05:37:39,240 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1283371861] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:37:39,241 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:37:39,241 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-03 05:37:39,242 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521849754] [2021-11-03 05:37:39,247 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 05:37:39,247 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:37:39,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 05:37:39,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 05:37:39,269 INFO L87 Difference]: Start difference. First operand has 34 states, 29 states have (on average 1.6206896551724137) internal successors, (47), 33 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:37:39,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:37:39,292 INFO L93 Difference]: Finished difference Result 65 states and 90 transitions. [2021-11-03 05:37:39,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 05:37:39,293 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-11-03 05:37:39,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:37:39,303 INFO L225 Difference]: With dead ends: 65 [2021-11-03 05:37:39,303 INFO L226 Difference]: Without dead ends: 30 [2021-11-03 05:37:39,305 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 05:37:39,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2021-11-03 05:37:39,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2021-11-03 05:37:39,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 26 states have (on average 1.2692307692307692) internal successors, (33), 29 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:37:39,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 33 transitions. [2021-11-03 05:37:39,332 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 33 transitions. Word has length 13 [2021-11-03 05:37:39,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:37:39,332 INFO L470 AbstractCegarLoop]: Abstraction has 30 states and 33 transitions. [2021-11-03 05:37:39,333 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:37:39,333 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 33 transitions. [2021-11-03 05:37:39,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-03 05:37:39,334 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:37:39,334 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:37:39,354 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3796fd32-4f6d-48fb-afd3-c813d5976247/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-03 05:37:39,541 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3796fd32-4f6d-48fb-afd3-c813d5976247/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:37:39,541 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-03 05:37:39,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:37:39,542 INFO L85 PathProgramCache]: Analyzing trace with hash -1281167042, now seen corresponding path program 1 times [2021-11-03 05:37:39,543 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:37:39,543 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1627957435] [2021-11-03 05:37:39,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:37:39,544 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:37:39,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3796fd32-4f6d-48fb-afd3-c813d5976247/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:37:39,545 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3796fd32-4f6d-48fb-afd3-c813d5976247/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:37:39,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3796fd32-4f6d-48fb-afd3-c813d5976247/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 05:37:42,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:37:42,543 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-03 05:37:42,545 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:38:01,155 WARN L207 SmtUtils]: Spent 5.86 s on a formula simplification. DAG size of input: 3 DAG size of output: 1 [2021-11-03 05:38:12,931 WARN L207 SmtUtils]: Spent 5.95 s on a formula simplification. DAG size of input: 3 DAG size of output: 1 [2021-11-03 05:38:17,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:38:17,249 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:38:26,254 WARN L860 $PredicateComparison]: unable to prove that (= (bvmul (_ bv8 32) c_ULTIMATE.start_main_~n~0) (let ((.cse3 (bvadd c_ULTIMATE.start_main_~a~0 (_ bv4294967294 32)))) (let ((.cse1 (bvudiv c_ULTIMATE.start_main_~n~0 .cse3)) (.cse0 (bvneg (bvudiv c_ULTIMATE.start_main_~n~0 c_ULTIMATE.start_main_~a~0))) (.cse2 (bvurem c_ULTIMATE.start_main_~n~0 c_ULTIMATE.start_main_~a~0))) (bvadd (bvmul (_ bv4 32) (bvmul .cse0 c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~a~0)) (bvmul (_ bv4 32) (bvmul .cse1 c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~a~0)) (bvneg (bvmul (bvmul .cse2 (_ bv4 32)) c_ULTIMATE.start_main_~a~0)) (bvneg (bvmul (bvadd (bvmul .cse1 (_ bv8 32)) (bvmul .cse0 (_ bv8 32))) c_ULTIMATE.start_main_~a~0)) (bvmul (_ bv8 32) .cse2) (bvmul (_ bv4 32) (bvmul (bvurem c_ULTIMATE.start_main_~n~0 .cse3) c_ULTIMATE.start_main_~a~0)))))) is different from true [2021-11-03 05:38:34,920 WARN L860 $PredicateComparison]: unable to prove that (or (= c_ULTIMATE.start_assume_abort_if_not_~cond (_ bv0 32)) (= (bvmul (_ bv8 32) c_ULTIMATE.start_main_~n~0) (let ((.cse3 (bvadd c_ULTIMATE.start_main_~a~0 (_ bv4294967294 32)))) (let ((.cse1 (bvudiv c_ULTIMATE.start_main_~n~0 .cse3)) (.cse0 (bvneg (bvudiv c_ULTIMATE.start_main_~n~0 c_ULTIMATE.start_main_~a~0))) (.cse2 (bvurem c_ULTIMATE.start_main_~n~0 c_ULTIMATE.start_main_~a~0))) (bvadd (bvmul (_ bv4 32) (bvmul .cse0 c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~a~0)) (bvmul (_ bv4 32) (bvmul .cse1 c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~a~0)) (bvneg (bvmul (bvmul .cse2 (_ bv4 32)) c_ULTIMATE.start_main_~a~0)) (bvneg (bvmul (bvadd (bvmul .cse1 (_ bv8 32)) (bvmul .cse0 (_ bv8 32))) c_ULTIMATE.start_main_~a~0)) (bvmul (_ bv8 32) .cse2) (bvmul (_ bv4 32) (bvmul (bvurem c_ULTIMATE.start_main_~n~0 .cse3) c_ULTIMATE.start_main_~a~0))))))) is different from true [2021-11-03 05:38:43,643 WARN L860 $PredicateComparison]: unable to prove that (or (not (bvugt c_ULTIMATE.start_main_~a~0 (_ bv2 32))) (= (bvmul (_ bv8 32) c_ULTIMATE.start_main_~n~0) (let ((.cse3 (bvadd c_ULTIMATE.start_main_~a~0 (_ bv4294967294 32)))) (let ((.cse1 (bvudiv c_ULTIMATE.start_main_~n~0 .cse3)) (.cse0 (bvneg (bvudiv c_ULTIMATE.start_main_~n~0 c_ULTIMATE.start_main_~a~0))) (.cse2 (bvurem c_ULTIMATE.start_main_~n~0 c_ULTIMATE.start_main_~a~0))) (bvadd (bvmul (_ bv4 32) (bvmul .cse0 c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~a~0)) (bvmul (_ bv4 32) (bvmul .cse1 c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~a~0)) (bvneg (bvmul (bvmul .cse2 (_ bv4 32)) c_ULTIMATE.start_main_~a~0)) (bvneg (bvmul (bvadd (bvmul .cse1 (_ bv8 32)) (bvmul .cse0 (_ bv8 32))) c_ULTIMATE.start_main_~a~0)) (bvmul (_ bv8 32) .cse2) (bvmul (_ bv4 32) (bvmul (bvurem c_ULTIMATE.start_main_~n~0 .cse3) c_ULTIMATE.start_main_~a~0))))))) is different from true [2021-11-03 05:39:08,801 WARN L860 $PredicateComparison]: unable to prove that (or (not (bvugt c_ULTIMATE.start_main_~a~0 (_ bv2 32))) (= c_ULTIMATE.start_assume_abort_if_not_~cond (_ bv0 32)) (= (bvmul (_ bv8 32) c_ULTIMATE.start_main_~n~0) (let ((.cse3 (bvadd c_ULTIMATE.start_main_~a~0 (_ bv4294967294 32)))) (let ((.cse1 (bvudiv c_ULTIMATE.start_main_~n~0 .cse3)) (.cse0 (bvneg (bvudiv c_ULTIMATE.start_main_~n~0 c_ULTIMATE.start_main_~a~0))) (.cse2 (bvurem c_ULTIMATE.start_main_~n~0 c_ULTIMATE.start_main_~a~0))) (bvadd (bvmul (_ bv4 32) (bvmul .cse0 c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~a~0)) (bvmul (_ bv4 32) (bvmul .cse1 c_ULTIMATE.start_main_~a~0 c_ULTIMATE.start_main_~a~0)) (bvneg (bvmul (bvmul .cse2 (_ bv4 32)) c_ULTIMATE.start_main_~a~0)) (bvneg (bvmul (bvadd (bvmul .cse1 (_ bv8 32)) (bvmul .cse0 (_ bv8 32))) c_ULTIMATE.start_main_~a~0)) (bvmul (_ bv8 32) .cse2) (bvmul (_ bv4 32) (bvmul (bvurem c_ULTIMATE.start_main_~n~0 .cse3) c_ULTIMATE.start_main_~a~0))))))) is different from true [2021-11-03 05:39:23,900 WARN L860 $PredicateComparison]: unable to prove that (forall ((v_ULTIMATE.start_main_~a~0_10 (_ BitVec 32))) (or (not (bvugt v_ULTIMATE.start_main_~a~0_10 (_ bv2 32))) (not (bvule v_ULTIMATE.start_main_~a~0_10 (_ bv20 32))) (= (bvmul (_ bv8 32) c_ULTIMATE.start_main_~n~0) (let ((.cse1 (bvadd v_ULTIMATE.start_main_~a~0_10 (_ bv4294967294 32)))) (let ((.cse0 (bvurem c_ULTIMATE.start_main_~n~0 v_ULTIMATE.start_main_~a~0_10)) (.cse2 (bvneg (bvudiv c_ULTIMATE.start_main_~n~0 v_ULTIMATE.start_main_~a~0_10))) (.cse3 (bvudiv c_ULTIMATE.start_main_~n~0 .cse1))) (bvadd (bvneg (bvmul (bvmul .cse0 (_ bv4 32)) v_ULTIMATE.start_main_~a~0_10)) (bvmul (_ bv8 32) .cse0) (bvmul (_ bv4 32) (bvmul (bvurem c_ULTIMATE.start_main_~n~0 .cse1) v_ULTIMATE.start_main_~a~0_10)) (bvmul (_ bv4 32) (bvmul .cse2 v_ULTIMATE.start_main_~a~0_10 v_ULTIMATE.start_main_~a~0_10)) (bvmul (_ bv4 32) (bvmul .cse3 v_ULTIMATE.start_main_~a~0_10 v_ULTIMATE.start_main_~a~0_10)) (bvneg (bvmul (bvadd (bvmul .cse2 (_ bv8 32)) (bvmul .cse3 (_ bv8 32))) v_ULTIMATE.start_main_~a~0_10)))))))) is different from true [2021-11-03 05:39:36,931 WARN L860 $PredicateComparison]: unable to prove that (or (forall ((v_ULTIMATE.start_main_~a~0_10 (_ BitVec 32))) (or (not (bvugt v_ULTIMATE.start_main_~a~0_10 (_ bv2 32))) (not (bvule v_ULTIMATE.start_main_~a~0_10 (_ bv20 32))) (= (bvmul (_ bv8 32) c_ULTIMATE.start_main_~n~0) (let ((.cse1 (bvadd v_ULTIMATE.start_main_~a~0_10 (_ bv4294967294 32)))) (let ((.cse0 (bvurem c_ULTIMATE.start_main_~n~0 v_ULTIMATE.start_main_~a~0_10)) (.cse2 (bvneg (bvudiv c_ULTIMATE.start_main_~n~0 v_ULTIMATE.start_main_~a~0_10))) (.cse3 (bvudiv c_ULTIMATE.start_main_~n~0 .cse1))) (bvadd (bvneg (bvmul (bvmul .cse0 (_ bv4 32)) v_ULTIMATE.start_main_~a~0_10)) (bvmul (_ bv8 32) .cse0) (bvmul (_ bv4 32) (bvmul (bvurem c_ULTIMATE.start_main_~n~0 .cse1) v_ULTIMATE.start_main_~a~0_10)) (bvmul (_ bv4 32) (bvmul .cse2 v_ULTIMATE.start_main_~a~0_10 v_ULTIMATE.start_main_~a~0_10)) (bvmul (_ bv4 32) (bvmul .cse3 v_ULTIMATE.start_main_~a~0_10 v_ULTIMATE.start_main_~a~0_10)) (bvneg (bvmul (bvadd (bvmul .cse2 (_ bv8 32)) (bvmul .cse3 (_ bv8 32))) v_ULTIMATE.start_main_~a~0_10)))))))) (= c_ULTIMATE.start_assume_abort_if_not_~cond (_ bv0 32))) is different from true [2021-11-03 05:40:12,560 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ULTIMATE.start_main_~n~0_10 (_ BitVec 32)) (v_ULTIMATE.start_main_~a~0_10 (_ BitVec 32))) (or (= (bvmul (_ bv8 32) v_ULTIMATE.start_main_~n~0_10) (let ((.cse2 (bvadd v_ULTIMATE.start_main_~a~0_10 (_ bv4294967294 32)))) (let ((.cse0 (bvudiv v_ULTIMATE.start_main_~n~0_10 .cse2)) (.cse1 (bvneg (bvudiv v_ULTIMATE.start_main_~n~0_10 v_ULTIMATE.start_main_~a~0_10))) (.cse3 (bvurem v_ULTIMATE.start_main_~n~0_10 v_ULTIMATE.start_main_~a~0_10))) (bvadd (bvneg (bvmul (bvadd (bvmul .cse0 (_ bv8 32)) (bvmul .cse1 (_ bv8 32))) v_ULTIMATE.start_main_~a~0_10)) (bvmul (_ bv4 32) (bvmul .cse0 v_ULTIMATE.start_main_~a~0_10 v_ULTIMATE.start_main_~a~0_10)) (bvmul (_ bv4 32) (bvmul v_ULTIMATE.start_main_~a~0_10 (bvurem v_ULTIMATE.start_main_~n~0_10 .cse2))) (bvmul (_ bv4 32) (bvmul v_ULTIMATE.start_main_~a~0_10 v_ULTIMATE.start_main_~a~0_10 .cse1)) (bvmul (_ bv8 32) .cse3) (bvneg (bvmul (bvmul .cse3 (_ bv4 32)) v_ULTIMATE.start_main_~a~0_10)))))) (not (bvule v_ULTIMATE.start_main_~a~0_10 (_ bv20 32))) (not (bvule v_ULTIMATE.start_main_~n~0_10 (_ bv20 32))))) is different from false [2021-11-03 05:40:14,582 WARN L860 $PredicateComparison]: unable to prove that (forall ((v_ULTIMATE.start_main_~n~0_10 (_ BitVec 32)) (v_ULTIMATE.start_main_~a~0_10 (_ BitVec 32))) (or (= (bvmul (_ bv8 32) v_ULTIMATE.start_main_~n~0_10) (let ((.cse2 (bvadd v_ULTIMATE.start_main_~a~0_10 (_ bv4294967294 32)))) (let ((.cse0 (bvudiv v_ULTIMATE.start_main_~n~0_10 .cse2)) (.cse1 (bvneg (bvudiv v_ULTIMATE.start_main_~n~0_10 v_ULTIMATE.start_main_~a~0_10))) (.cse3 (bvurem v_ULTIMATE.start_main_~n~0_10 v_ULTIMATE.start_main_~a~0_10))) (bvadd (bvneg (bvmul (bvadd (bvmul .cse0 (_ bv8 32)) (bvmul .cse1 (_ bv8 32))) v_ULTIMATE.start_main_~a~0_10)) (bvmul (_ bv4 32) (bvmul .cse0 v_ULTIMATE.start_main_~a~0_10 v_ULTIMATE.start_main_~a~0_10)) (bvmul (_ bv4 32) (bvmul v_ULTIMATE.start_main_~a~0_10 (bvurem v_ULTIMATE.start_main_~n~0_10 .cse2))) (bvmul (_ bv4 32) (bvmul v_ULTIMATE.start_main_~a~0_10 v_ULTIMATE.start_main_~a~0_10 .cse1)) (bvmul (_ bv8 32) .cse3) (bvneg (bvmul (bvmul .cse3 (_ bv4 32)) v_ULTIMATE.start_main_~a~0_10)))))) (not (bvule v_ULTIMATE.start_main_~a~0_10 (_ bv20 32))) (not (bvule v_ULTIMATE.start_main_~n~0_10 (_ bv20 32))))) is different from true [2021-11-03 05:40:14,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:40:14,583 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:40:14,584 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1627957435] [2021-11-03 05:40:14,584 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1627957435] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:40:14,584 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:40:14,584 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 19 [2021-11-03 05:40:14,585 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959990453] [2021-11-03 05:40:14,586 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-11-03 05:40:14,586 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:40:14,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-11-03 05:40:14,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=108, Unknown=8, NotChecked=182, Total=342 [2021-11-03 05:40:14,589 INFO L87 Difference]: Start difference. First operand 30 states and 33 transitions. Second operand has 19 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 19 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:40:24,056 WARN L207 SmtUtils]: Spent 6.87 s on a formula simplification. DAG size of input: 49 DAG size of output: 12 [2021-11-03 05:40:36,584 WARN L207 SmtUtils]: Spent 9.43 s on a formula simplification. DAG size of input: 48 DAG size of output: 42 [2021-11-03 05:41:03,803 WARN L207 SmtUtils]: Spent 21.48 s on a formula simplification. DAG size of input: 46 DAG size of output: 43 [2021-11-03 05:41:18,517 WARN L207 SmtUtils]: Spent 9.80 s on a formula simplification. DAG size of input: 50 DAG size of output: 36 [2021-11-03 05:41:38,312 WARN L207 SmtUtils]: Spent 12.46 s on a formula simplification. DAG size of input: 45 DAG size of output: 44 [2021-11-03 05:41:50,742 WARN L207 SmtUtils]: Spent 8.06 s on a formula simplification. DAG size of input: 52 DAG size of output: 38 [2021-11-03 05:42:01,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:42:01,009 INFO L93 Difference]: Finished difference Result 35 states and 38 transitions. [2021-11-03 05:42:01,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-03 05:42:01,032 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 19 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-11-03 05:42:01,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:42:01,033 INFO L225 Difference]: With dead ends: 35 [2021-11-03 05:42:01,033 INFO L226 Difference]: Without dead ends: 33 [2021-11-03 05:42:01,035 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 7 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 120.2s TimeCoverageRelationStatistics Valid=93, Invalid=302, Unknown=13, NotChecked=294, Total=702 [2021-11-03 05:42:01,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2021-11-03 05:42:01,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 32. [2021-11-03 05:42:01,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 28 states have (on average 1.25) internal successors, (35), 31 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:42:01,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 35 transitions. [2021-11-03 05:42:01,042 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 35 transitions. Word has length 13 [2021-11-03 05:42:01,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:42:01,042 INFO L470 AbstractCegarLoop]: Abstraction has 32 states and 35 transitions. [2021-11-03 05:42:01,043 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 19 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:42:01,043 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 35 transitions. [2021-11-03 05:42:01,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-03 05:42:01,043 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:42:01,044 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:42:01,061 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3796fd32-4f6d-48fb-afd3-c813d5976247/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-03 05:42:01,244 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3796fd32-4f6d-48fb-afd3-c813d5976247/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:42:01,244 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-03 05:42:01,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:42:01,245 INFO L85 PathProgramCache]: Analyzing trace with hash 1454243009, now seen corresponding path program 1 times [2021-11-03 05:42:01,246 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:42:01,246 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [336489699] [2021-11-03 05:42:01,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:42:01,246 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:42:01,247 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3796fd32-4f6d-48fb-afd3-c813d5976247/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:42:01,247 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3796fd32-4f6d-48fb-afd3-c813d5976247/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:42:01,248 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3796fd32-4f6d-48fb-afd3-c813d5976247/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 05:42:01,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:42:01,565 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 05:42:01,566 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:42:01,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:42:01,880 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:42:02,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:42:02,335 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:42:02,336 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [336489699] [2021-11-03 05:42:02,336 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [336489699] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:42:02,336 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:42:02,336 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-11-03 05:42:02,337 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35815543] [2021-11-03 05:42:02,337 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 05:42:02,337 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:42:02,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 05:42:02,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:42:02,339 INFO L87 Difference]: Start difference. First operand 32 states and 35 transitions. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:42:04,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:42:04,011 INFO L93 Difference]: Finished difference Result 48 states and 54 transitions. [2021-11-03 05:42:04,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 05:42:04,012 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-11-03 05:42:04,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:42:04,014 INFO L225 Difference]: With dead ends: 48 [2021-11-03 05:42:04,014 INFO L226 Difference]: Without dead ends: 46 [2021-11-03 05:42:04,014 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-03 05:42:04,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2021-11-03 05:42:04,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 34. [2021-11-03 05:42:04,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 30 states have (on average 1.2333333333333334) internal successors, (37), 33 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:42:04,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 37 transitions. [2021-11-03 05:42:04,022 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 37 transitions. Word has length 15 [2021-11-03 05:42:04,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:42:04,022 INFO L470 AbstractCegarLoop]: Abstraction has 34 states and 37 transitions. [2021-11-03 05:42:04,023 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:42:04,023 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 37 transitions. [2021-11-03 05:42:04,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-03 05:42:04,024 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:42:04,024 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:42:04,048 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3796fd32-4f6d-48fb-afd3-c813d5976247/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-03 05:42:04,237 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3796fd32-4f6d-48fb-afd3-c813d5976247/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:42:04,238 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-03 05:42:04,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:42:04,238 INFO L85 PathProgramCache]: Analyzing trace with hash 1663317220, now seen corresponding path program 1 times [2021-11-03 05:42:04,239 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:42:04,239 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [638493173] [2021-11-03 05:42:04,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:42:04,239 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:42:04,239 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3796fd32-4f6d-48fb-afd3-c813d5976247/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:42:04,241 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3796fd32-4f6d-48fb-afd3-c813d5976247/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:42:04,269 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3796fd32-4f6d-48fb-afd3-c813d5976247/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-03 05:42:07,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:42:07,900 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-03 05:42:07,902 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:42:40,603 WARN L207 SmtUtils]: Spent 13.31 s on a formula simplification that was a NOOP. DAG size: 52 [2021-11-03 05:43:29,432 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:43:29,433 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:44:04,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:44:04,162 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:44:04,162 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [638493173] [2021-11-03 05:44:04,163 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [638493173] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:44:04,163 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:44:04,163 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 6] imperfect sequences [] total 16 [2021-11-03 05:44:04,163 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695299228] [2021-11-03 05:44:04,164 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-03 05:44:04,164 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:44:04,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-03 05:44:04,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=178, Unknown=13, NotChecked=0, Total=240 [2021-11-03 05:44:04,165 INFO L87 Difference]: Start difference. First operand 34 states and 37 transitions. Second operand has 16 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:44:29,237 WARN L207 SmtUtils]: Spent 5.29 s on a formula simplification. DAG size of input: 63 DAG size of output: 30 [2021-11-03 05:45:28,190 WARN L207 SmtUtils]: Spent 42.63 s on a formula simplification. DAG size of input: 71 DAG size of output: 70 [2021-11-03 05:45:41,323 WARN L207 SmtUtils]: Spent 9.47 s on a formula simplification. DAG size of input: 69 DAG size of output: 47 [2021-11-03 05:46:01,301 WARN L207 SmtUtils]: Spent 9.98 s on a formula simplification. DAG size of input: 64 DAG size of output: 47 [2021-11-03 05:47:00,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:47:00,029 INFO L93 Difference]: Finished difference Result 39 states and 42 transitions. [2021-11-03 05:47:00,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-03 05:47:00,055 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-11-03 05:47:00,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:47:00,056 INFO L225 Difference]: With dead ends: 39 [2021-11-03 05:47:00,056 INFO L226 Difference]: Without dead ends: 37 [2021-11-03 05:47:00,057 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 203.1s TimeCoverageRelationStatistics Valid=160, Invalid=561, Unknown=35, NotChecked=0, Total=756 [2021-11-03 05:47:00,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-11-03 05:47:00,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 36. [2021-11-03 05:47:00,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 32 states have (on average 1.21875) internal successors, (39), 35 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:47:00,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 39 transitions. [2021-11-03 05:47:00,064 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 39 transitions. Word has length 17 [2021-11-03 05:47:00,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:47:00,065 INFO L470 AbstractCegarLoop]: Abstraction has 36 states and 39 transitions. [2021-11-03 05:47:00,065 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.0) internal successors, (32), 16 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:47:00,065 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 39 transitions. [2021-11-03 05:47:00,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-03 05:47:00,066 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:47:00,066 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:47:00,092 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3796fd32-4f6d-48fb-afd3-c813d5976247/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-03 05:47:00,281 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3796fd32-4f6d-48fb-afd3-c813d5976247/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:47:00,282 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-03 05:47:00,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:47:00,282 INFO L85 PathProgramCache]: Analyzing trace with hash 720171431, now seen corresponding path program 1 times [2021-11-03 05:47:00,282 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:47:00,283 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [486156551] [2021-11-03 05:47:00,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:47:00,283 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:47:00,283 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3796fd32-4f6d-48fb-afd3-c813d5976247/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:47:00,284 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3796fd32-4f6d-48fb-afd3-c813d5976247/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:47:00,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3796fd32-4f6d-48fb-afd3-c813d5976247/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-03 05:47:02,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:47:02,151 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 20 conjunts are in the unsatisfiable core [2021-11-03 05:47:02,153 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:48:08,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:48:08,779 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:48:25,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:48:25,072 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 05:48:25,072 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [486156551] [2021-11-03 05:48:25,073 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [486156551] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 05:48:25,073 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:48:25,073 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 6] imperfect sequences [] total 16 [2021-11-03 05:48:25,073 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766917471] [2021-11-03 05:48:25,073 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-03 05:48:25,074 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 05:48:25,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-03 05:48:25,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=186, Unknown=4, NotChecked=0, Total=240 [2021-11-03 05:48:25,075 INFO L87 Difference]: Start difference. First operand 36 states and 39 transitions. Second operand has 16 states, 16 states have (on average 2.25) internal successors, (36), 16 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:49:08,354 WARN L207 SmtUtils]: Spent 12.68 s on a formula simplification. DAG size of input: 61 DAG size of output: 59 [2021-11-03 05:50:08,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:50:08,226 INFO L93 Difference]: Finished difference Result 42 states and 49 transitions. [2021-11-03 05:50:08,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-03 05:50:08,241 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.25) internal successors, (36), 16 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-11-03 05:50:08,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:50:08,242 INFO L225 Difference]: With dead ends: 42 [2021-11-03 05:50:08,243 INFO L226 Difference]: Without dead ends: 40 [2021-11-03 05:50:08,244 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 95.0s TimeCoverageRelationStatistics Valid=173, Invalid=516, Unknown=13, NotChecked=0, Total=702 [2021-11-03 05:50:08,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2021-11-03 05:50:08,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 34. [2021-11-03 05:50:08,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 31 states have (on average 1.1935483870967742) internal successors, (37), 33 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:50:08,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 37 transitions. [2021-11-03 05:50:08,253 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 37 transitions. Word has length 19 [2021-11-03 05:50:08,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:50:08,253 INFO L470 AbstractCegarLoop]: Abstraction has 34 states and 37 transitions. [2021-11-03 05:50:08,254 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.25) internal successors, (36), 16 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:50:08,254 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 37 transitions. [2021-11-03 05:50:08,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-03 05:50:08,255 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 05:50:08,255 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:50:08,285 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3796fd32-4f6d-48fb-afd3-c813d5976247/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-03 05:50:08,475 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3796fd32-4f6d-48fb-afd3-c813d5976247/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 05:50:08,476 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-03 05:50:08,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:50:08,476 INFO L85 PathProgramCache]: Analyzing trace with hash 729574747, now seen corresponding path program 1 times [2021-11-03 05:50:08,476 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 05:50:08,477 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1472507739] [2021-11-03 05:50:08,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:50:08,477 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 05:50:08,477 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3796fd32-4f6d-48fb-afd3-c813d5976247/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 05:50:08,478 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3796fd32-4f6d-48fb-afd3-c813d5976247/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 05:50:08,480 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3796fd32-4f6d-48fb-afd3-c813d5976247/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-03 05:50:09,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:50:09,117 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 18 conjunts are in the unsatisfiable core [2021-11-03 05:50:09,118 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:50:17,773 WARN L207 SmtUtils]: Spent 5.60 s on a formula simplification that was a NOOP. DAG size: 13 [2021-11-03 05:50:23,195 WARN L207 SmtUtils]: Spent 5.42 s on a formula simplification that was a NOOP. DAG size: 5 [2021-11-03 05:50:28,607 WARN L207 SmtUtils]: Spent 5.41 s on a formula simplification that was a NOOP. DAG size: 7 [2021-11-03 05:50:34,017 WARN L207 SmtUtils]: Spent 5.41 s on a formula simplification that was a NOOP. DAG size: 3 [2021-11-03 05:50:41,454 WARN L838 $PredicateComparison]: unable to prove that (and (bvule c_ULTIMATE.start_main_~d~0 (_ bv20 32)) (exists ((ULTIMATE.start_main_~n~0 (_ BitVec 32))) (let ((.cse0 (bvadd c_ULTIMATE.start_main_~d~0 (_ bv4294967294 32)))) (and (= c_ULTIMATE.start_main_~q~0 (bvadd (bvmul (_ bv4 32) (bvudiv ULTIMATE.start_main_~n~0 .cse0)) (bvmul (_ bv4 32) (bvneg (bvudiv ULTIMATE.start_main_~n~0 c_ULTIMATE.start_main_~d~0))))) (= (bvurem ULTIMATE.start_main_~n~0 c_ULTIMATE.start_main_~d~0) c_ULTIMATE.start_main_~r~0) (= c_ULTIMATE.start_main_~k~0 (bvurem ULTIMATE.start_main_~n~0 .cse0)) (bvule ULTIMATE.start_main_~n~0 (_ bv20 32)) (= ((_ fp.to_ubv 32) roundTowardZero (fp.sqrt roundNearestTiesToEven ((_ to_fp_unsigned 11 53) roundNearestTiesToEven ULTIMATE.start_main_~n~0))) c_ULTIMATE.start_main_~s~0)))) (bvugt c_ULTIMATE.start_main_~d~0 (_ bv2 32))) is different from false [2021-11-03 05:50:47,017 WARN L207 SmtUtils]: Spent 5.47 s on a formula simplification that was a NOOP. DAG size: 13 [2021-11-03 05:50:52,427 WARN L207 SmtUtils]: Spent 5.41 s on a formula simplification that was a NOOP. DAG size: 5 [2021-11-03 05:50:57,886 WARN L207 SmtUtils]: Spent 5.46 s on a formula simplification that was a NOOP. DAG size: 7 [2021-11-03 05:51:03,299 WARN L207 SmtUtils]: Spent 5.41 s on a formula simplification that was a NOOP. DAG size: 3 [2021-11-03 05:51:13,691 WARN L207 SmtUtils]: Spent 5.40 s on a formula simplification that was a NOOP. DAG size: 13 [2021-11-03 05:51:19,154 WARN L207 SmtUtils]: Spent 5.46 s on a formula simplification that was a NOOP. DAG size: 5 [2021-11-03 05:51:24,632 WARN L207 SmtUtils]: Spent 5.48 s on a formula simplification that was a NOOP. DAG size: 7 [2021-11-03 05:51:30,135 WARN L207 SmtUtils]: Spent 5.50 s on a formula simplification that was a NOOP. DAG size: 3 [2021-11-03 05:51:40,724 WARN L207 SmtUtils]: Spent 5.49 s on a formula simplification that was a NOOP. DAG size: 13 [2021-11-03 05:51:46,174 WARN L207 SmtUtils]: Spent 5.45 s on a formula simplification that was a NOOP. DAG size: 5 [2021-11-03 05:51:51,642 WARN L207 SmtUtils]: Spent 5.47 s on a formula simplification that was a NOOP. DAG size: 7 [2021-11-03 05:51:57,085 WARN L207 SmtUtils]: Spent 5.44 s on a formula simplification that was a NOOP. DAG size: 3