./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0250b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca694523-e735-46b7-8344-7dc72d8941c6/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca694523-e735-46b7-8344-7dc72d8941c6/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca694523-e735-46b7-8344-7dc72d8941c6/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca694523-e735-46b7-8344-7dc72d8941c6/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0250b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca694523-e735-46b7-8344-7dc72d8941c6/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca694523-e735-46b7-8344-7dc72d8941c6/bin/utaipan-EQgc7hIp5V --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 9033f05f589e1195fbdad23abe16d3b24ce3353f33e3f085fe8fae82ec5a9118 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 02:39:24,831 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 02:39:24,834 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 02:39:24,872 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 02:39:24,873 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 02:39:24,875 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 02:39:24,878 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 02:39:24,881 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 02:39:24,884 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 02:39:24,886 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 02:39:24,888 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 02:39:24,890 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 02:39:24,891 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 02:39:24,892 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 02:39:24,895 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 02:39:24,897 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 02:39:24,899 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 02:39:24,900 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 02:39:24,903 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 02:39:24,906 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 02:39:24,909 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 02:39:24,911 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 02:39:24,913 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 02:39:24,915 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 02:39:24,920 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 02:39:24,920 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 02:39:24,921 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 02:39:24,923 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 02:39:24,924 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 02:39:24,925 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 02:39:24,926 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 02:39:24,927 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 02:39:24,929 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 02:39:24,931 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 02:39:24,933 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 02:39:24,935 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 02:39:24,937 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 02:39:24,937 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 02:39:24,938 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 02:39:24,939 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 02:39:24,940 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 02:39:24,941 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca694523-e735-46b7-8344-7dc72d8941c6/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 02:39:25,006 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 02:39:25,009 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 02:39:25,017 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 02:39:25,018 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 02:39:25,019 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 02:39:25,019 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 02:39:25,020 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 02:39:25,020 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 02:39:25,020 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 02:39:25,021 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 02:39:25,022 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 02:39:25,023 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 02:39:25,023 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 02:39:25,023 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 02:39:25,023 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 02:39:25,024 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 02:39:25,024 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 02:39:25,024 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 02:39:25,026 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 02:39:25,027 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 02:39:25,027 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 02:39:25,027 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 02:39:25,027 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 02:39:25,028 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 02:39:25,028 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 02:39:25,028 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 02:39:25,030 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 02:39:25,031 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 02:39:25,031 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 02:39:25,031 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 02:39:25,032 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 02:39:25,032 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 02:39:25,033 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:39:25,033 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 02:39:25,033 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 02:39:25,034 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 02:39:25,034 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 02:39:25,034 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 02:39:25,034 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 02:39:25,035 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 02:39:25,035 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 02:39:25,035 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_ca694523-e735-46b7-8344-7dc72d8941c6/bin/utaipan-EQgc7hIp5V/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca694523-e735-46b7-8344-7dc72d8941c6/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9033f05f589e1195fbdad23abe16d3b24ce3353f33e3f085fe8fae82ec5a9118 [2021-11-23 02:39:25,360 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 02:39:25,392 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 02:39:25,395 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 02:39:25,397 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 02:39:25,398 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 02:39:25,399 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca694523-e735-46b7-8344-7dc72d8941c6/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/float-newlib/float_req_bl_0250b.c [2021-11-23 02:39:25,482 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca694523-e735-46b7-8344-7dc72d8941c6/bin/utaipan-EQgc7hIp5V/data/065157693/6f5b604107984ab881444033770f540d/FLAGf02ef5f8a [2021-11-23 02:39:26,108 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 02:39:26,109 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca694523-e735-46b7-8344-7dc72d8941c6/sv-benchmarks/c/float-newlib/float_req_bl_0250b.c [2021-11-23 02:39:26,134 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca694523-e735-46b7-8344-7dc72d8941c6/bin/utaipan-EQgc7hIp5V/data/065157693/6f5b604107984ab881444033770f540d/FLAGf02ef5f8a [2021-11-23 02:39:26,431 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca694523-e735-46b7-8344-7dc72d8941c6/bin/utaipan-EQgc7hIp5V/data/065157693/6f5b604107984ab881444033770f540d [2021-11-23 02:39:26,436 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 02:39:26,445 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 02:39:26,447 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 02:39:26,448 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 02:39:26,452 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 02:39:26,452 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:39:26" (1/1) ... [2021-11-23 02:39:26,454 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2eff1469 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:39:26, skipping insertion in model container [2021-11-23 02:39:26,455 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:39:26" (1/1) ... [2021-11-23 02:39:26,464 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 02:39:26,503 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 02:39:26,787 WARN L230 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_ca694523-e735-46b7-8344-7dc72d8941c6/sv-benchmarks/c/float-newlib/float_req_bl_0250b.c[5435,5448] [2021-11-23 02:39:26,790 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:39:26,800 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 02:39:26,881 WARN L230 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_ca694523-e735-46b7-8344-7dc72d8941c6/sv-benchmarks/c/float-newlib/float_req_bl_0250b.c[5435,5448] [2021-11-23 02:39:26,882 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:39:26,915 INFO L208 MainTranslator]: Completed translation [2021-11-23 02:39:26,916 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:39:26 WrapperNode [2021-11-23 02:39:26,916 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 02:39:26,917 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 02:39:26,918 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 02:39:26,918 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 02:39:26,928 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:39:26" (1/1) ... [2021-11-23 02:39:26,942 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:39:26" (1/1) ... [2021-11-23 02:39:26,994 INFO L137 Inliner]: procedures = 20, calls = 47, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 241 [2021-11-23 02:39:26,995 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 02:39:26,996 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 02:39:26,996 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 02:39:26,996 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 02:39:27,008 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:39:26" (1/1) ... [2021-11-23 02:39:27,008 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:39:26" (1/1) ... [2021-11-23 02:39:27,013 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:39:26" (1/1) ... [2021-11-23 02:39:27,014 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:39:26" (1/1) ... [2021-11-23 02:39:27,027 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:39:26" (1/1) ... [2021-11-23 02:39:27,034 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:39:26" (1/1) ... [2021-11-23 02:39:27,037 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:39:26" (1/1) ... [2021-11-23 02:39:27,042 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 02:39:27,043 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 02:39:27,044 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 02:39:27,044 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 02:39:27,046 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:39:26" (1/1) ... [2021-11-23 02:39:27,057 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:39:27,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca694523-e735-46b7-8344-7dc72d8941c6/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:39:27,086 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca694523-e735-46b7-8344-7dc72d8941c6/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 02:39:27,098 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca694523-e735-46b7-8344-7dc72d8941c6/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 02:39:27,134 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 02:39:27,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 02:39:27,134 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 02:39:27,134 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-11-23 02:39:27,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 02:39:27,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-11-23 02:39:27,135 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 02:39:27,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 02:39:27,135 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 02:39:27,135 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 02:39:27,245 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 02:39:27,246 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 02:39:27,534 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 02:39:27,698 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 02:39:27,699 INFO L301 CfgBuilder]: Removed 16 assume(true) statements. [2021-11-23 02:39:27,701 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:39:27 BoogieIcfgContainer [2021-11-23 02:39:27,701 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 02:39:27,703 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 02:39:27,703 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 02:39:27,717 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 02:39:27,717 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:39:26" (1/3) ... [2021-11-23 02:39:27,718 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29424858 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:39:27, skipping insertion in model container [2021-11-23 02:39:27,718 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:39:26" (2/3) ... [2021-11-23 02:39:27,719 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29424858 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:39:27, skipping insertion in model container [2021-11-23 02:39:27,719 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:39:27" (3/3) ... [2021-11-23 02:39:27,720 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0250b.c [2021-11-23 02:39:27,745 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 02:39:27,745 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 02:39:27,847 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 02:39:27,865 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 [2021-11-23 02:39:27,865 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 02:39:27,888 INFO L276 IsEmpty]: Start isEmpty. Operand has 42 states, 40 states have (on average 1.7) internal successors, (68), 41 states have internal predecessors, (68), 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) [2021-11-23 02:39:27,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-23 02:39:27,897 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:39:27,897 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:39:27,898 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:39:27,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:39:27,904 INFO L85 PathProgramCache]: Analyzing trace with hash -790482759, now seen corresponding path program 1 times [2021-11-23 02:39:27,914 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:39:27,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14463714] [2021-11-23 02:39:27,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:39:27,916 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:39:28,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:39:28,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:39:28,078 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:39:28,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14463714] [2021-11-23 02:39:28,080 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14463714] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:39:28,080 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:39:28,082 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 02:39:28,084 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144275589] [2021-11-23 02:39:28,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:39:28,090 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 02:39:28,090 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:39:28,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 02:39:28,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 02:39:28,124 INFO L87 Difference]: Start difference. First operand has 42 states, 40 states have (on average 1.7) internal successors, (68), 41 states have internal predecessors, (68), 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 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2021-11-23 02:39:28,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:39:28,176 INFO L93 Difference]: Finished difference Result 83 states and 135 transitions. [2021-11-23 02:39:28,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 02:39:28,180 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 7 [2021-11-23 02:39:28,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:39:28,190 INFO L225 Difference]: With dead ends: 83 [2021-11-23 02:39:28,190 INFO L226 Difference]: Without dead ends: 40 [2021-11-23 02:39:28,194 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 02:39:28,198 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:39:28,200 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 43 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 02:39:28,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2021-11-23 02:39:28,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2021-11-23 02:39:28,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 39 states have (on average 1.3076923076923077) internal successors, (51), 39 states have internal predecessors, (51), 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) [2021-11-23 02:39:28,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 51 transitions. [2021-11-23 02:39:28,241 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 51 transitions. Word has length 7 [2021-11-23 02:39:28,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:39:28,242 INFO L470 AbstractCegarLoop]: Abstraction has 40 states and 51 transitions. [2021-11-23 02:39:28,242 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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) [2021-11-23 02:39:28,242 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 51 transitions. [2021-11-23 02:39:28,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-23 02:39:28,243 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:39:28,243 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:39:28,244 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 02:39:28,244 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:39:28,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:39:28,246 INFO L85 PathProgramCache]: Analyzing trace with hash -804884774, now seen corresponding path program 1 times [2021-11-23 02:39:28,246 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:39:28,246 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492931961] [2021-11-23 02:39:28,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:39:28,247 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:39:28,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 02:39:28,289 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 02:39:28,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 02:39:28,344 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-23 02:39:28,344 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-23 02:39:28,346 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-23 02:39:28,349 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 02:39:28,353 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-23 02:39:28,356 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-23 02:39:28,406 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:39:28 BoogieIcfgContainer [2021-11-23 02:39:28,407 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-23 02:39:28,408 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 02:39:28,408 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 02:39:28,408 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 02:39:28,409 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:39:27" (3/4) ... [2021-11-23 02:39:28,412 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-23 02:39:28,412 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 02:39:28,414 INFO L158 Benchmark]: Toolchain (without parser) took 1967.84ms. Allocated memory was 92.3MB in the beginning and 119.5MB in the end (delta: 27.3MB). Free memory was 55.8MB in the beginning and 69.9MB in the end (delta: -14.1MB). Peak memory consumption was 13.6MB. Max. memory is 16.1GB. [2021-11-23 02:39:28,415 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 92.3MB. Free memory was 62.7MB in the beginning and 62.7MB in the end (delta: 24.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 02:39:28,419 INFO L158 Benchmark]: CACSL2BoogieTranslator took 469.27ms. Allocated memory is still 92.3MB. Free memory was 55.6MB in the beginning and 62.5MB in the end (delta: -6.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-23 02:39:28,421 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.91ms. Allocated memory is still 92.3MB. Free memory was 62.5MB in the beginning and 60.2MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 02:39:28,425 INFO L158 Benchmark]: Boogie Preprocessor took 46.63ms. Allocated memory is still 92.3MB. Free memory was 59.9MB in the beginning and 58.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 02:39:28,426 INFO L158 Benchmark]: RCFGBuilder took 658.12ms. Allocated memory is still 92.3MB. Free memory was 58.1MB in the beginning and 38.6MB in the end (delta: 19.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2021-11-23 02:39:28,430 INFO L158 Benchmark]: TraceAbstraction took 703.55ms. Allocated memory was 92.3MB in the beginning and 119.5MB in the end (delta: 27.3MB). Free memory was 37.9MB in the beginning and 70.5MB in the end (delta: -32.6MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 02:39:28,431 INFO L158 Benchmark]: Witness Printer took 4.76ms. Allocated memory is still 119.5MB. Free memory was 70.5MB in the beginning and 69.9MB in the end (delta: 572.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 02:39:28,436 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 92.3MB. Free memory was 62.7MB in the beginning and 62.7MB in the end (delta: 24.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 469.27ms. Allocated memory is still 92.3MB. Free memory was 55.6MB in the beginning and 62.5MB in the end (delta: -6.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 77.91ms. Allocated memory is still 92.3MB. Free memory was 62.5MB in the beginning and 60.2MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.63ms. Allocated memory is still 92.3MB. Free memory was 59.9MB in the beginning and 58.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 658.12ms. Allocated memory is still 92.3MB. Free memory was 58.1MB in the beginning and 38.6MB in the end (delta: 19.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 703.55ms. Allocated memory was 92.3MB in the beginning and 119.5MB in the end (delta: 27.3MB). Free memory was 37.9MB in the beginning and 70.5MB in the end (delta: -32.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.76ms. Allocated memory is still 119.5MB. Free memory was 70.5MB in the beginning and 69.9MB in the end (delta: 572.2kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 235]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 60, overapproximation of someUnaryDOUBLEoperation at line 149, overapproximation of bitwiseAnd at line 163, overapproximation of someUnaryFLOAToperation at line 147, overapproximation of someBinaryArithmeticFLOAToperation at line 166. Possible FailurePath: [L14] static const float huge_floor = 1.0e30; [L62] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; [L145-L153] static const float one_asin = 1.0000000000e+00, huge_asin = 1.000e+30, pio2_hi_asin = 1.57079637050628662109375f, pio2_lo_asin = -4.37113900018624283e-8f, pio4_hi_asin = 0.785398185253143310546875f, pS0_asin = 1.6666667163e-01, pS1_asin = -3.2556581497e-01, pS2_asin = 2.0121252537e-01, pS3_asin = -4.0055535734e-02, pS4_asin = 7.9153501429e-04, pS5_asin = 3.4793309169e-05, qS1_asin = -2.4033949375e+00, qS2_asin = 2.0209457874e+00, qS3_asin = -6.8828397989e-01, qS4_asin = 7.7038154006e-02; [L230] float x = -1.0f / 0.0f; [L231] CALL, EXPR __ieee754_asinf(x) [L156] float t, w, p, q, c, r, s; [L157] __int32_t hx, ix; VAL [\old(x)=1000000000000000000000000000002, huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=1000000000000000000000000000002] [L159] ieee_float_shape_type gf_u; [L160] gf_u.value = (x) [L161] EXPR gf_u.word [L161] (hx) = gf_u.word [L163] ix = hx & 0x7fffffff VAL [\old(x)=1000000000000000000000000000002, huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, hx=-1, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=1000000000000000000000000000002] [L164] COND TRUE ix == 0x3f800000 [L166] return x * pio2_hi_asin + x * pio2_lo_asin; VAL [\old(x)=1000000000000000000000000000002, huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, hx=-1, ix=1065353216, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=1000000000000000000000000000002] [L231] RET, EXPR __ieee754_asinf(x) [L231] float res = __ieee754_asinf(x); [L234] CALL, EXPR isnan_float(res) [L60] return x != x; [L234] RET, EXPR isnan_float(res) [L234] COND TRUE !isnan_float(res) [L235] reach_error() VAL [huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, res=1000000000000000000000000000001, tiny_sqrt=1/1000000000000000000000000000000, x=1000000000000000000000000000002] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 42 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 43 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10 IncrementalHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 43 mSDtfsCounter, 10 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-23 02:39:28,493 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca694523-e735-46b7-8344-7dc72d8941c6/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 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_ca694523-e735-46b7-8344-7dc72d8941c6/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca694523-e735-46b7-8344-7dc72d8941c6/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca694523-e735-46b7-8344-7dc72d8941c6/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca694523-e735-46b7-8344-7dc72d8941c6/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0250b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca694523-e735-46b7-8344-7dc72d8941c6/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca694523-e735-46b7-8344-7dc72d8941c6/bin/utaipan-EQgc7hIp5V --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 9033f05f589e1195fbdad23abe16d3b24ce3353f33e3f085fe8fae82ec5a9118 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 02:39:31,243 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 02:39:31,246 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 02:39:31,291 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 02:39:31,291 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 02:39:31,297 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 02:39:31,300 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 02:39:31,309 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 02:39:31,313 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 02:39:31,321 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 02:39:31,322 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 02:39:31,324 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 02:39:31,324 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 02:39:31,327 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 02:39:31,329 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 02:39:31,331 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 02:39:31,334 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 02:39:31,335 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 02:39:31,340 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 02:39:31,349 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 02:39:31,352 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 02:39:31,353 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 02:39:31,357 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 02:39:31,359 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 02:39:31,371 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 02:39:31,371 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 02:39:31,372 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 02:39:31,374 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 02:39:31,375 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 02:39:31,377 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 02:39:31,378 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 02:39:31,379 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 02:39:31,382 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 02:39:31,382 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 02:39:31,384 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 02:39:31,385 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 02:39:31,386 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 02:39:31,397 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 02:39:31,397 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 02:39:31,399 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 02:39:31,400 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 02:39:31,402 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca694523-e735-46b7-8344-7dc72d8941c6/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-23 02:39:31,458 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 02:39:31,458 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 02:39:31,459 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 02:39:31,460 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 02:39:31,461 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 02:39:31,461 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 02:39:31,462 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 02:39:31,462 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 02:39:31,462 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 02:39:31,462 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 02:39:31,464 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 02:39:31,464 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 02:39:31,466 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 02:39:31,467 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 02:39:31,467 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 02:39:31,467 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 02:39:31,467 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 02:39:31,468 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 02:39:31,468 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 02:39:31,468 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 02:39:31,469 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 02:39:31,469 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 02:39:31,469 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 02:39:31,469 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 02:39:31,470 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 02:39:31,470 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 02:39:31,470 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 02:39:31,471 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 02:39:31,471 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 02:39:31,471 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:39:31,472 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 02:39:31,472 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 02:39:31,473 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 02:39:31,473 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 02:39:31,473 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 02:39:31,474 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 02:39:31,474 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 02:39:31,474 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 02:39:31,475 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_ca694523-e735-46b7-8344-7dc72d8941c6/bin/utaipan-EQgc7hIp5V/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca694523-e735-46b7-8344-7dc72d8941c6/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9033f05f589e1195fbdad23abe16d3b24ce3353f33e3f085fe8fae82ec5a9118 [2021-11-23 02:39:31,937 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 02:39:31,971 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 02:39:31,974 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 02:39:31,977 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 02:39:31,978 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 02:39:31,981 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca694523-e735-46b7-8344-7dc72d8941c6/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/float-newlib/float_req_bl_0250b.c [2021-11-23 02:39:32,063 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca694523-e735-46b7-8344-7dc72d8941c6/bin/utaipan-EQgc7hIp5V/data/1a55a39a9/671d39af54c5461a9e0476ffc4d57933/FLAG4eeca6fc9 [2021-11-23 02:39:32,742 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 02:39:32,743 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca694523-e735-46b7-8344-7dc72d8941c6/sv-benchmarks/c/float-newlib/float_req_bl_0250b.c [2021-11-23 02:39:32,757 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca694523-e735-46b7-8344-7dc72d8941c6/bin/utaipan-EQgc7hIp5V/data/1a55a39a9/671d39af54c5461a9e0476ffc4d57933/FLAG4eeca6fc9 [2021-11-23 02:39:33,051 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca694523-e735-46b7-8344-7dc72d8941c6/bin/utaipan-EQgc7hIp5V/data/1a55a39a9/671d39af54c5461a9e0476ffc4d57933 [2021-11-23 02:39:33,054 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 02:39:33,056 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 02:39:33,058 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 02:39:33,058 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 02:39:33,063 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 02:39:33,064 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:39:33" (1/1) ... [2021-11-23 02:39:33,066 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5487c5ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:39:33, skipping insertion in model container [2021-11-23 02:39:33,066 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:39:33" (1/1) ... [2021-11-23 02:39:33,076 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 02:39:33,104 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 02:39:33,352 WARN L230 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_ca694523-e735-46b7-8344-7dc72d8941c6/sv-benchmarks/c/float-newlib/float_req_bl_0250b.c[5435,5448] [2021-11-23 02:39:33,356 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:39:33,372 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 02:39:33,486 WARN L230 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_ca694523-e735-46b7-8344-7dc72d8941c6/sv-benchmarks/c/float-newlib/float_req_bl_0250b.c[5435,5448] [2021-11-23 02:39:33,487 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:39:33,510 INFO L208 MainTranslator]: Completed translation [2021-11-23 02:39:33,510 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:39:33 WrapperNode [2021-11-23 02:39:33,511 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 02:39:33,512 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 02:39:33,512 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 02:39:33,513 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 02:39:33,522 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:39:33" (1/1) ... [2021-11-23 02:39:33,542 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:39:33" (1/1) ... [2021-11-23 02:39:33,587 INFO L137 Inliner]: procedures = 23, calls = 47, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 241 [2021-11-23 02:39:33,587 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 02:39:33,588 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 02:39:33,589 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 02:39:33,589 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 02:39:33,598 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:39:33" (1/1) ... [2021-11-23 02:39:33,598 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:39:33" (1/1) ... [2021-11-23 02:39:33,608 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:39:33" (1/1) ... [2021-11-23 02:39:33,609 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:39:33" (1/1) ... [2021-11-23 02:39:33,627 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:39:33" (1/1) ... [2021-11-23 02:39:33,636 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:39:33" (1/1) ... [2021-11-23 02:39:33,641 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:39:33" (1/1) ... [2021-11-23 02:39:33,648 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 02:39:33,649 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 02:39:33,649 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 02:39:33,649 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 02:39:33,650 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:39:33" (1/1) ... [2021-11-23 02:39:33,659 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:39:33,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca694523-e735-46b7-8344-7dc72d8941c6/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:39:33,706 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca694523-e735-46b7-8344-7dc72d8941c6/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 02:39:33,708 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca694523-e735-46b7-8344-7dc72d8941c6/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 02:39:33,750 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 02:39:33,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 02:39:33,751 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 02:39:33,751 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-11-23 02:39:33,751 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-23 02:39:33,751 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 02:39:33,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 02:39:33,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-11-23 02:39:33,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-23 02:39:33,752 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 02:39:33,866 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 02:39:33,868 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 02:39:45,814 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 02:39:45,822 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 02:39:45,822 INFO L301 CfgBuilder]: Removed 16 assume(true) statements. [2021-11-23 02:39:45,824 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:39:45 BoogieIcfgContainer [2021-11-23 02:39:45,824 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 02:39:45,826 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 02:39:45,826 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 02:39:45,829 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 02:39:45,830 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:39:33" (1/3) ... [2021-11-23 02:39:45,831 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30910d7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:39:45, skipping insertion in model container [2021-11-23 02:39:45,831 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:39:33" (2/3) ... [2021-11-23 02:39:45,831 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30910d7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:39:45, skipping insertion in model container [2021-11-23 02:39:45,832 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:39:45" (3/3) ... [2021-11-23 02:39:45,833 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0250b.c [2021-11-23 02:39:45,839 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 02:39:45,839 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 02:39:45,890 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 02:39:45,898 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 [2021-11-23 02:39:45,898 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 02:39:45,917 INFO L276 IsEmpty]: Start isEmpty. Operand has 56 states, 54 states have (on average 1.6666666666666667) internal successors, (90), 55 states have internal predecessors, (90), 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) [2021-11-23 02:39:45,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-23 02:39:45,923 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:39:45,924 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:39:45,924 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:39:45,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:39:45,935 INFO L85 PathProgramCache]: Analyzing trace with hash -1900532880, now seen corresponding path program 1 times [2021-11-23 02:39:45,948 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 02:39:45,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [814321539] [2021-11-23 02:39:45,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:39:45,951 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 02:39:45,951 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca694523-e735-46b7-8344-7dc72d8941c6/bin/utaipan-EQgc7hIp5V/mathsat [2021-11-23 02:39:45,955 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca694523-e735-46b7-8344-7dc72d8941c6/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 02:39:45,966 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca694523-e735-46b7-8344-7dc72d8941c6/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-23 02:39:46,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:39:46,680 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-23 02:39:46,685 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:39:46,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:39:46,787 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:39:46,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:39:46,867 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 02:39:46,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [814321539] [2021-11-23 02:39:46,868 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [814321539] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 02:39:46,869 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:39:46,870 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-23 02:39:46,872 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130192845] [2021-11-23 02:39:46,874 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 02:39:46,878 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 02:39:46,879 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 02:39:46,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 02:39:46,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 02:39:46,923 INFO L87 Difference]: Start difference. First operand has 56 states, 54 states have (on average 1.6666666666666667) internal successors, (90), 55 states have internal predecessors, (90), 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 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2021-11-23 02:39:46,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:39:46,965 INFO L93 Difference]: Finished difference Result 110 states and 178 transitions. [2021-11-23 02:39:46,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 02:39:46,968 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 9 [2021-11-23 02:39:46,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:39:46,982 INFO L225 Difference]: With dead ends: 110 [2021-11-23 02:39:46,983 INFO L226 Difference]: Without dead ends: 53 [2021-11-23 02:39:46,988 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 02:39:46,994 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:39:46,996 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 02:39:47,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2021-11-23 02:39:47,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2021-11-23 02:39:47,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 52 states have (on average 1.3461538461538463) internal successors, (70), 52 states have internal predecessors, (70), 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) [2021-11-23 02:39:47,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 70 transitions. [2021-11-23 02:39:47,057 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 70 transitions. Word has length 9 [2021-11-23 02:39:47,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:39:47,058 INFO L470 AbstractCegarLoop]: Abstraction has 53 states and 70 transitions. [2021-11-23 02:39:47,058 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2021-11-23 02:39:47,058 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 70 transitions. [2021-11-23 02:39:47,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-23 02:39:47,059 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:39:47,059 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:39:47,091 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca694523-e735-46b7-8344-7dc72d8941c6/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-23 02:39:47,285 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca694523-e735-46b7-8344-7dc72d8941c6/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 [2021-11-23 02:39:47,285 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:39:47,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:39:47,287 INFO L85 PathProgramCache]: Analyzing trace with hash 1487817933, now seen corresponding path program 1 times [2021-11-23 02:39:47,287 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 02:39:47,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1341428736] [2021-11-23 02:39:47,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:39:47,288 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 02:39:47,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca694523-e735-46b7-8344-7dc72d8941c6/bin/utaipan-EQgc7hIp5V/mathsat [2021-11-23 02:39:47,294 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca694523-e735-46b7-8344-7dc72d8941c6/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 02:39:47,335 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca694523-e735-46b7-8344-7dc72d8941c6/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-23 02:39:48,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:39:48,076 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-23 02:39:48,079 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:39:48,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:39:48,551 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:39:49,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:39:49,046 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 02:39:49,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1341428736] [2021-11-23 02:39:49,047 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1341428736] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 02:39:49,047 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:39:49,047 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-23 02:39:49,048 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38761390] [2021-11-23 02:39:49,048 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 02:39:49,049 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-23 02:39:49,049 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 02:39:49,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-23 02:39:49,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-23 02:39:49,051 INFO L87 Difference]: Start difference. First operand 53 states and 70 transitions. Second operand has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 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) [2021-11-23 02:39:51,841 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.60s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 02:39:54,200 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 02:39:56,460 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 02:39:58,471 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 02:39:58,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:39:58,694 INFO L93 Difference]: Finished difference Result 96 states and 124 transitions. [2021-11-23 02:39:58,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 02:39:58,695 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 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 10 [2021-11-23 02:39:58,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:39:58,697 INFO L225 Difference]: With dead ends: 96 [2021-11-23 02:39:58,698 INFO L226 Difference]: Without dead ends: 91 [2021-11-23 02:39:58,698 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-23 02:39:58,700 INFO L933 BasicCegarLoop]: 108 mSDtfsCounter, 56 mSDsluCounter, 457 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 3 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 565 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 26 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2021-11-23 02:39:58,701 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [56 Valid, 565 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 6 Invalid, 4 Unknown, 26 Unchecked, 9.6s Time] [2021-11-23 02:39:58,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2021-11-23 02:39:58,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 53. [2021-11-23 02:39:58,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 52 states have (on average 1.3269230769230769) internal successors, (69), 52 states have internal predecessors, (69), 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) [2021-11-23 02:39:58,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 69 transitions. [2021-11-23 02:39:58,713 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 69 transitions. Word has length 10 [2021-11-23 02:39:58,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:39:58,714 INFO L470 AbstractCegarLoop]: Abstraction has 53 states and 69 transitions. [2021-11-23 02:39:58,714 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 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) [2021-11-23 02:39:58,714 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 69 transitions. [2021-11-23 02:39:58,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-23 02:39:58,715 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:39:58,715 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:39:58,737 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca694523-e735-46b7-8344-7dc72d8941c6/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-23 02:39:58,920 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca694523-e735-46b7-8344-7dc72d8941c6/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 [2021-11-23 02:39:58,921 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:39:58,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:39:58,922 INFO L85 PathProgramCache]: Analyzing trace with hash -1242404338, now seen corresponding path program 1 times [2021-11-23 02:39:58,922 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 02:39:58,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [785966344] [2021-11-23 02:39:58,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:39:58,923 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 02:39:58,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca694523-e735-46b7-8344-7dc72d8941c6/bin/utaipan-EQgc7hIp5V/mathsat [2021-11-23 02:39:58,933 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca694523-e735-46b7-8344-7dc72d8941c6/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 02:39:58,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca694523-e735-46b7-8344-7dc72d8941c6/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-23 02:39:59,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:39:59,613 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 02:39:59,614 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:40:00,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:40:00,289 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:40:00,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:40:00,823 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 02:40:00,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [785966344] [2021-11-23 02:40:00,823 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [785966344] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 02:40:00,823 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:40:00,824 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 5] imperfect sequences [] total 9 [2021-11-23 02:40:00,824 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412751253] [2021-11-23 02:40:00,824 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 02:40:00,824 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-23 02:40:00,825 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 02:40:00,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-23 02:40:00,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-23 02:40:00,826 INFO L87 Difference]: Start difference. First operand 53 states and 69 transitions. Second operand has 9 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 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) [2021-11-23 02:40:04,126 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.47s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 02:40:06,790 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 02:40:09,758 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 02:40:11,764 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 02:40:14,392 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.34s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 02:40:16,395 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 02:40:16,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:40:16,753 INFO L93 Difference]: Finished difference Result 61 states and 76 transitions. [2021-11-23 02:40:16,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-23 02:40:16,758 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 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 11 [2021-11-23 02:40:16,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:40:16,760 INFO L225 Difference]: With dead ends: 61 [2021-11-23 02:40:16,760 INFO L226 Difference]: Without dead ends: 53 [2021-11-23 02:40:16,762 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2021-11-23 02:40:16,764 INFO L933 BasicCegarLoop]: 59 mSDtfsCounter, 23 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 1 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.5s IncrementalHoareTripleChecker+Time [2021-11-23 02:40:16,765 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23 Valid, 376 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 46 Invalid, 6 Unknown, 0 Unchecked, 15.5s Time] [2021-11-23 02:40:16,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2021-11-23 02:40:16,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2021-11-23 02:40:16,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 52 states have (on average 1.2884615384615385) internal successors, (67), 52 states have internal predecessors, (67), 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) [2021-11-23 02:40:16,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 67 transitions. [2021-11-23 02:40:16,777 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 67 transitions. Word has length 11 [2021-11-23 02:40:16,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:40:16,777 INFO L470 AbstractCegarLoop]: Abstraction has 53 states and 67 transitions. [2021-11-23 02:40:16,778 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.3333333333333335) internal successors, (21), 9 states have internal predecessors, (21), 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) [2021-11-23 02:40:16,778 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 67 transitions. [2021-11-23 02:40:16,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-23 02:40:16,779 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:40:16,779 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:40:16,810 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca694523-e735-46b7-8344-7dc72d8941c6/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-11-23 02:40:16,980 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca694523-e735-46b7-8344-7dc72d8941c6/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 [2021-11-23 02:40:16,981 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:40:16,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:40:16,982 INFO L85 PathProgramCache]: Analyzing trace with hash 601206874, now seen corresponding path program 1 times [2021-11-23 02:40:16,982 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 02:40:16,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [74833364] [2021-11-23 02:40:16,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:40:16,983 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 02:40:16,983 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca694523-e735-46b7-8344-7dc72d8941c6/bin/utaipan-EQgc7hIp5V/mathsat [2021-11-23 02:40:16,984 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca694523-e735-46b7-8344-7dc72d8941c6/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 02:40:16,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca694523-e735-46b7-8344-7dc72d8941c6/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-23 02:40:18,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:40:18,579 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-23 02:40:18,580 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:40:19,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:40:19,105 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:40:19,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 02:40:19,678 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 02:40:19,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [74833364] [2021-11-23 02:40:19,679 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [74833364] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 02:40:19,679 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:40:19,679 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-23 02:40:19,679 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201079396] [2021-11-23 02:40:19,679 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 02:40:19,680 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-23 02:40:19,680 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 02:40:19,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-23 02:40:19,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-23 02:40:19,681 INFO L87 Difference]: Start difference. First operand 53 states and 67 transitions. Second operand has 8 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 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) [2021-11-23 02:40:19,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:40:19,697 INFO L93 Difference]: Finished difference Result 53 states and 67 transitions. [2021-11-23 02:40:19,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 02:40:19,698 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 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 [2021-11-23 02:40:19,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:40:19,699 INFO L225 Difference]: With dead ends: 53 [2021-11-23 02:40:19,699 INFO L226 Difference]: Without dead ends: 0 [2021-11-23 02:40:19,700 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-23 02:40:19,701 INFO L933 BasicCegarLoop]: 3 mSDtfsCounter, 0 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 5 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 02:40:19,702 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 13 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 5 Unchecked, 0.0s Time] [2021-11-23 02:40:19,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-23 02:40:19,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-23 02:40:19,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2021-11-23 02:40:19,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-23 02:40:19,706 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2021-11-23 02:40:19,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:40:19,706 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-23 02:40:19,706 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 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) [2021-11-23 02:40:19,706 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-23 02:40:19,706 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-23 02:40:19,709 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-23 02:40:19,744 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca694523-e735-46b7-8344-7dc72d8941c6/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-23 02:40:19,909 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca694523-e735-46b7-8344-7dc72d8941c6/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 [2021-11-23 02:40:19,917 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-23 02:40:20,253 INFO L858 garLoopResultBuilder]: For program point L85(lines 85 89) no Hoare annotation was computed. [2021-11-23 02:40:20,254 INFO L858 garLoopResultBuilder]: For program point L85-2(lines 85 89) no Hoare annotation was computed. [2021-11-23 02:40:20,254 INFO L858 garLoopResultBuilder]: For program point L234(lines 234 237) no Hoare annotation was computed. [2021-11-23 02:40:20,254 INFO L858 garLoopResultBuilder]: For program point L201-1(lines 201 205) no Hoare annotation was computed. [2021-11-23 02:40:20,254 INFO L854 garLoopResultBuilder]: At program point L201-2(lines 201 205) the Hoare annotation is: false [2021-11-23 02:40:20,254 INFO L858 garLoopResultBuilder]: For program point L102(lines 102 106) no Hoare annotation was computed. [2021-11-23 02:40:20,255 INFO L858 garLoopResultBuilder]: For program point L69-1(lines 69 73) no Hoare annotation was computed. [2021-11-23 02:40:20,255 INFO L858 garLoopResultBuilder]: For program point L102-2(lines 102 106) no Hoare annotation was computed. [2021-11-23 02:40:20,255 INFO L854 garLoopResultBuilder]: At program point L69-2(lines 69 73) the Hoare annotation is: false [2021-11-23 02:40:20,255 INFO L858 garLoopResultBuilder]: For program point L69-3(lines 69 73) no Hoare annotation was computed. [2021-11-23 02:40:20,256 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-23 02:40:20,256 INFO L858 garLoopResultBuilder]: For program point L86-2(lines 86 87) no Hoare annotation was computed. [2021-11-23 02:40:20,256 INFO L854 garLoopResultBuilder]: At program point L86-3(lines 86 87) the Hoare annotation is: false [2021-11-23 02:40:20,256 INFO L858 garLoopResultBuilder]: For program point L86-4(lines 86 87) no Hoare annotation was computed. [2021-11-23 02:40:20,257 INFO L858 garLoopResultBuilder]: For program point L235(line 235) no Hoare annotation was computed. [2021-11-23 02:40:20,257 INFO L858 garLoopResultBuilder]: For program point L169(lines 169 184) no Hoare annotation was computed. [2021-11-23 02:40:20,257 INFO L858 garLoopResultBuilder]: For program point L169-1(lines 169 184) no Hoare annotation was computed. [2021-11-23 02:40:20,257 INFO L858 garLoopResultBuilder]: For program point L170(lines 170 183) no Hoare annotation was computed. [2021-11-23 02:40:20,258 INFO L858 garLoopResultBuilder]: For program point L137(lines 137 141) no Hoare annotation was computed. [2021-11-23 02:40:20,258 INFO L858 garLoopResultBuilder]: For program point L137-1(lines 130 143) no Hoare annotation was computed. [2021-11-23 02:40:20,258 INFO L858 garLoopResultBuilder]: For program point L137-2(lines 137 141) no Hoare annotation was computed. [2021-11-23 02:40:20,259 INFO L854 garLoopResultBuilder]: At program point L220(lines 155 221) the Hoare annotation is: (and (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24)) |ULTIMATE.start___ieee754_asinf_~x#1|) (= |ULTIMATE.start___ieee754_asinf_#res#1| (let ((.cse0 (let ((.cse1 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24)))) (fp.sub roundNearestTiesToEven .cse1 .cse1)))) (fp.div roundNearestTiesToEven .cse0 .cse0))) (= currentRoundingMode roundNearestTiesToEven)) [2021-11-23 02:40:20,259 INFO L858 garLoopResultBuilder]: For program point L171(lines 171 172) no Hoare annotation was computed. [2021-11-23 02:40:20,259 INFO L858 garLoopResultBuilder]: For program point L123-1(lines 123 127) no Hoare annotation was computed. [2021-11-23 02:40:20,259 INFO L854 garLoopResultBuilder]: At program point L123-2(lines 123 127) the Hoare annotation is: false [2021-11-23 02:40:20,260 INFO L858 garLoopResultBuilder]: For program point L123-3(lines 123 127) no Hoare annotation was computed. [2021-11-23 02:40:20,260 INFO L861 garLoopResultBuilder]: At program point L239(lines 223 240) the Hoare annotation is: true [2021-11-23 02:40:20,260 INFO L858 garLoopResultBuilder]: For program point L206(lines 206 210) no Hoare annotation was computed. [2021-11-23 02:40:20,260 INFO L858 garLoopResultBuilder]: For program point L206-1(lines 198 216) no Hoare annotation was computed. [2021-11-23 02:40:20,261 INFO L858 garLoopResultBuilder]: For program point L206-2(lines 206 210) no Hoare annotation was computed. [2021-11-23 02:40:20,261 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-23 02:40:20,261 INFO L858 garLoopResultBuilder]: For program point L158-1(lines 158 162) no Hoare annotation was computed. [2021-11-23 02:40:20,261 INFO L854 garLoopResultBuilder]: At program point L158-2(lines 158 162) the Hoare annotation is: (and (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24)) |ULTIMATE.start___ieee754_asinf_~x#1|) (= currentRoundingMode roundNearestTiesToEven)) [2021-11-23 02:40:20,262 INFO L858 garLoopResultBuilder]: For program point L92(lines 92 93) no Hoare annotation was computed. [2021-11-23 02:40:20,262 INFO L858 garLoopResultBuilder]: For program point L158-3(lines 158 162) no Hoare annotation was computed. [2021-11-23 02:40:20,262 INFO L858 garLoopResultBuilder]: For program point L92-2(lines 92 93) no Hoare annotation was computed. [2021-11-23 02:40:20,262 INFO L854 garLoopResultBuilder]: At program point L142(lines 130 143) the Hoare annotation is: false [2021-11-23 02:40:20,263 INFO L858 garLoopResultBuilder]: For program point L76(lines 76 77) no Hoare annotation was computed. [2021-11-23 02:40:20,263 INFO L854 garLoopResultBuilder]: At program point L60(line 60) the Hoare annotation is: (and (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24)) |ULTIMATE.start___ieee754_asinf_~x#1|) (= |ULTIMATE.start___ieee754_asinf_#res#1| (let ((.cse0 (let ((.cse1 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24)))) (fp.sub roundNearestTiesToEven .cse1 .cse1)))) (fp.div roundNearestTiesToEven .cse0 .cse0))) (= currentRoundingMode roundNearestTiesToEven) (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res#1|)) [2021-11-23 02:40:20,263 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-23 02:40:20,264 INFO L858 garLoopResultBuilder]: For program point L111(lines 111 120) no Hoare annotation was computed. [2021-11-23 02:40:20,264 INFO L854 garLoopResultBuilder]: At program point L128(lines 64 129) the Hoare annotation is: false [2021-11-23 02:40:20,264 INFO L858 garLoopResultBuilder]: For program point L79(lines 79 80) no Hoare annotation was computed. [2021-11-23 02:40:20,264 INFO L858 garLoopResultBuilder]: For program point L195(lines 195 216) no Hoare annotation was computed. [2021-11-23 02:40:20,264 INFO L858 garLoopResultBuilder]: For program point L195-2(lines 155 221) no Hoare annotation was computed. [2021-11-23 02:40:20,265 INFO L858 garLoopResultBuilder]: For program point L113(lines 113 119) no Hoare annotation was computed. [2021-11-23 02:40:20,265 INFO L858 garLoopResultBuilder]: For program point L81(lines 81 82) no Hoare annotation was computed. [2021-11-23 02:40:20,265 INFO L858 garLoopResultBuilder]: For program point L164(lines 164 184) no Hoare annotation was computed. [2021-11-23 02:40:20,265 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-23 02:40:20,266 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 235) no Hoare annotation was computed. [2021-11-23 02:40:20,266 INFO L858 garLoopResultBuilder]: For program point L115(lines 115 118) no Hoare annotation was computed. [2021-11-23 02:40:20,266 INFO L858 garLoopResultBuilder]: For program point L132-1(lines 132 136) no Hoare annotation was computed. [2021-11-23 02:40:20,266 INFO L854 garLoopResultBuilder]: At program point L132-2(lines 132 136) the Hoare annotation is: false [2021-11-23 02:40:20,267 INFO L854 garLoopResultBuilder]: At program point L100-2(lines 100 109) the Hoare annotation is: false [2021-11-23 02:40:20,267 INFO L858 garLoopResultBuilder]: For program point L100-3(lines 64 129) no Hoare annotation was computed. [2021-11-23 02:40:20,267 INFO L858 garLoopResultBuilder]: For program point L167(lines 167 184) no Hoare annotation was computed. [2021-11-23 02:40:20,271 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2021-11-23 02:40:20,273 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-23 02:40:20,286 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 02:40:20,287 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 02:40:20,288 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 02:40:20,288 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 02:40:20,288 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 02:40:20,288 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 02:40:20,289 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 02:40:20,289 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 02:40:20,289 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 02:40:20,290 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 02:40:20,290 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 02:40:20,290 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 02:40:20,295 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 02:40:20,295 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 02:40:20,295 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 02:40:20,295 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 02:40:20,296 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 02:40:20,296 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 02:40:20,296 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 02:40:20,297 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 02:40:20,297 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 02:40:20,297 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 02:40:20,298 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 02:40:20,298 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 02:40:20,299 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 02:40:20,300 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 02:40:20,300 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 02:40:20,301 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 02:40:20,301 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 02:40:20,301 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 02:40:20,301 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 02:40:20,302 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 02:40:20,302 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 02:40:20,302 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 02:40:20,303 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 02:40:20,303 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 02:40:20,303 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 02:40:20,304 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 02:40:20,304 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 02:40:20,305 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 02:40:20,305 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 02:40:20,305 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 02:40:20,306 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 02:40:20,306 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 02:40:20,306 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 02:40:20,306 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 02:40:20,307 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 02:40:20,307 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 02:40:20,307 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 02:40:20,308 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 02:40:20,309 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:40:20 BoogieIcfgContainer [2021-11-23 02:40:20,309 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-23 02:40:20,310 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 02:40:20,310 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 02:40:20,310 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 02:40:20,311 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:39:45" (3/4) ... [2021-11-23 02:40:20,314 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-23 02:40:20,330 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2021-11-23 02:40:20,330 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-11-23 02:40:20,331 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-23 02:40:20,331 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-23 02:40:20,359 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE()) == x && \result == ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2021-11-23 02:40:20,360 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE()) == x && \result == ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && 1bv32 == \result [2021-11-23 02:40:20,387 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca694523-e735-46b7-8344-7dc72d8941c6/bin/utaipan-EQgc7hIp5V/witness.graphml [2021-11-23 02:40:20,388 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 02:40:20,389 INFO L158 Benchmark]: Toolchain (without parser) took 47333.01ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 31.4MB in the beginning and 34.3MB in the end (delta: -2.9MB). Peak memory consumption was 10.4MB. Max. memory is 16.1GB. [2021-11-23 02:40:20,389 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 54.5MB. Free memory was 35.1MB in the beginning and 35.0MB in the end (delta: 38.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 02:40:20,390 INFO L158 Benchmark]: CACSL2BoogieTranslator took 453.36ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 31.1MB in the beginning and 47.4MB in the end (delta: -16.3MB). Peak memory consumption was 7.7MB. Max. memory is 16.1GB. [2021-11-23 02:40:20,390 INFO L158 Benchmark]: Boogie Procedure Inliner took 75.50ms. Allocated memory is still 67.1MB. Free memory was 47.2MB in the beginning and 44.8MB in the end (delta: 2.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 02:40:20,391 INFO L158 Benchmark]: Boogie Preprocessor took 59.44ms. Allocated memory is still 67.1MB. Free memory was 44.8MB in the beginning and 42.5MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 02:40:20,392 INFO L158 Benchmark]: RCFGBuilder took 12175.35ms. Allocated memory is still 67.1MB. Free memory was 42.5MB in the beginning and 39.0MB in the end (delta: 3.5MB). Peak memory consumption was 13.1MB. Max. memory is 16.1GB. [2021-11-23 02:40:20,392 INFO L158 Benchmark]: TraceAbstraction took 34483.33ms. Allocated memory is still 67.1MB. Free memory was 38.5MB in the beginning and 39.8MB in the end (delta: -1.2MB). Peak memory consumption was 11.6MB. Max. memory is 16.1GB. [2021-11-23 02:40:20,393 INFO L158 Benchmark]: Witness Printer took 77.98ms. Allocated memory is still 67.1MB. Free memory was 39.8MB in the beginning and 34.3MB in the end (delta: 5.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-23 02:40:20,395 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 54.5MB. Free memory was 35.1MB in the beginning and 35.0MB in the end (delta: 38.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 453.36ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 31.1MB in the beginning and 47.4MB in the end (delta: -16.3MB). Peak memory consumption was 7.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 75.50ms. Allocated memory is still 67.1MB. Free memory was 47.2MB in the beginning and 44.8MB in the end (delta: 2.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.44ms. Allocated memory is still 67.1MB. Free memory was 44.8MB in the beginning and 42.5MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 12175.35ms. Allocated memory is still 67.1MB. Free memory was 42.5MB in the beginning and 39.0MB in the end (delta: 3.5MB). Peak memory consumption was 13.1MB. Max. memory is 16.1GB. * TraceAbstraction took 34483.33ms. Allocated memory is still 67.1MB. Free memory was 38.5MB in the beginning and 39.8MB in the end (delta: -1.2MB). Peak memory consumption was 11.6MB. Max. memory is 16.1GB. * Witness Printer took 77.98ms. Allocated memory is still 67.1MB. Free memory was 39.8MB in the beginning and 34.3MB in the end (delta: 5.5MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 235]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 56 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 34.4s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 25.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 10 mSolverCounterUnknown, 79 SdHoareTripleChecker+Valid, 25.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 79 mSDsluCounter, 1027 SdHoareTripleChecker+Invalid, 24.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 31 IncrementalHoareTripleChecker+Unchecked, 784 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 53 IncrementalHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 243 mSDtfsCounter, 53 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 81 GetRequests, 58 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=56occurred in iteration=0, InterpolantAutomatonStates: 20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 38 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 12 LocationsWithAnnotation, 12 PreInvPairs, 16 NumberOfFragments, 123 HoareAnnotationTreeSize, 12 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 12 FomulaSimplificationsInter, 10 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 3.3s SatisfiabilityAnalysisTime, 3.7s InterpolantComputationTime, 43 NumberOfCodeBlocks, 43 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 78 ConstructedInterpolants, 11 QuantifiedInterpolants, 422 SizeOfPredicates, 25 NumberOfNonLiveVariables, 220 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 69]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 123]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 60]: Loop Invariant [2021-11-23 02:40:20,429 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 02:40:20,432 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 02:40:20,433 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 02:40:20,433 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 02:40:20,433 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 02:40:20,434 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 02:40:20,434 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 02:40:20,434 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 02:40:20,434 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 02:40:20,435 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 02:40:20,435 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 02:40:20,436 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 02:40:20,437 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 02:40:20,440 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 02:40:20,440 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 02:40:20,440 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 02:40:20,440 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 02:40:20,441 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 02:40:20,441 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 02:40:20,441 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 02:40:20,441 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 02:40:20,442 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 02:40:20,442 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 02:40:20,442 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE()) == x && \result == ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && 1bv32 == \result - InvariantResult [Line: 223]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 201]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 64]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 158]: Loop Invariant [2021-11-23 02:40:20,444 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 02:40:20,445 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE()) == x && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 155]: Loop Invariant [2021-11-23 02:40:20,448 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 02:40:20,448 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 02:40:20,449 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 02:40:20,449 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 02:40:20,450 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 02:40:20,450 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 02:40:20,450 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 02:40:20,450 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 02:40:20,451 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 02:40:20,451 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 02:40:20,451 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 02:40:20,451 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 02:40:20,452 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 02:40:20,453 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 02:40:20,453 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 02:40:20,454 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 02:40:20,454 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 02:40:20,454 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 02:40:20,454 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 02:40:20,455 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 02:40:20,455 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 02:40:20,455 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 02:40:20,455 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-23 02:40:20,455 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE()) == x && \result == ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 130]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 132]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 100]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 86]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2021-11-23 02:40:20,656 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca694523-e735-46b7-8344-7dc72d8941c6/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE