./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0670.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9c2bfd4-b22b-4167-bf3e-59e160b56b4c/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9c2bfd4-b22b-4167-bf3e-59e160b56b4c/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9c2bfd4-b22b-4167-bf3e-59e160b56b4c/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9c2bfd4-b22b-4167-bf3e-59e160b56b4c/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0670.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9c2bfd4-b22b-4167-bf3e-59e160b56b4c/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9c2bfd4-b22b-4167-bf3e-59e160b56b4c/bin/utaipan-TEXQjIfE4P --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 30960d2adb6c9c20f9f63c6610ee2d41326fba20611a72d2653a7fc816ed7fd3 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 01:33:17,831 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 01:33:17,835 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 01:33:17,896 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 01:33:17,897 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 01:33:17,901 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 01:33:17,904 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 01:33:17,908 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 01:33:17,911 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 01:33:17,917 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 01:33:17,918 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 01:33:17,920 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 01:33:17,921 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 01:33:17,926 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 01:33:17,928 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 01:33:17,935 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 01:33:17,937 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 01:33:17,938 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 01:33:17,945 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 01:33:17,956 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 01:33:17,959 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 01:33:17,961 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 01:33:17,965 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 01:33:17,966 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 01:33:17,976 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 01:33:17,977 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 01:33:17,977 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 01:33:17,980 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 01:33:17,980 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 01:33:17,982 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 01:33:17,983 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 01:33:17,984 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 01:33:17,986 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 01:33:17,988 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 01:33:17,990 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 01:33:17,990 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 01:33:17,991 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 01:33:17,992 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 01:33:17,992 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 01:33:17,993 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 01:33:17,994 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 01:33:17,995 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9c2bfd4-b22b-4167-bf3e-59e160b56b4c/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-21 01:33:18,049 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 01:33:18,049 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 01:33:18,050 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 01:33:18,051 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 01:33:18,059 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 01:33:18,059 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 01:33:18,059 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 01:33:18,060 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 01:33:18,060 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 01:33:18,060 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 01:33:18,061 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 01:33:18,062 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 01:33:18,062 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 01:33:18,062 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 01:33:18,063 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 01:33:18,063 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 01:33:18,063 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 01:33:18,064 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 01:33:18,065 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 01:33:18,065 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-21 01:33:18,065 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 01:33:18,065 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-21 01:33:18,066 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 01:33:18,066 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 01:33:18,066 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 01:33:18,067 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 01:33:18,068 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-21 01:33:18,069 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 01:33:18,069 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 01:33:18,069 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 01:33:18,070 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 01:33:18,070 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 01:33:18,071 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:33:18,071 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 01:33:18,071 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 01:33:18,072 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 01:33:18,072 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 01:33:18,072 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 01:33:18,072 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 01:33:18,073 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 01:33:18,073 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 01:33:18,074 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_c9c2bfd4-b22b-4167-bf3e-59e160b56b4c/bin/utaipan-TEXQjIfE4P/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9c2bfd4-b22b-4167-bf3e-59e160b56b4c/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 30960d2adb6c9c20f9f63c6610ee2d41326fba20611a72d2653a7fc816ed7fd3 [2021-11-21 01:33:18,428 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 01:33:18,468 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 01:33:18,471 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 01:33:18,473 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 01:33:18,474 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 01:33:18,475 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9c2bfd4-b22b-4167-bf3e-59e160b56b4c/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/float-newlib/double_req_bl_0670.c [2021-11-21 01:33:18,551 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9c2bfd4-b22b-4167-bf3e-59e160b56b4c/bin/utaipan-TEXQjIfE4P/data/a09f98b22/27e86ae54f764ff396ebd4c91cc707ff/FLAG5364a0403 [2021-11-21 01:33:19,024 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 01:33:19,024 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9c2bfd4-b22b-4167-bf3e-59e160b56b4c/sv-benchmarks/c/float-newlib/double_req_bl_0670.c [2021-11-21 01:33:19,036 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9c2bfd4-b22b-4167-bf3e-59e160b56b4c/bin/utaipan-TEXQjIfE4P/data/a09f98b22/27e86ae54f764ff396ebd4c91cc707ff/FLAG5364a0403 [2021-11-21 01:33:19,379 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9c2bfd4-b22b-4167-bf3e-59e160b56b4c/bin/utaipan-TEXQjIfE4P/data/a09f98b22/27e86ae54f764ff396ebd4c91cc707ff [2021-11-21 01:33:19,382 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 01:33:19,384 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 01:33:19,397 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 01:33:19,398 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 01:33:19,401 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 01:33:19,402 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:33:19" (1/1) ... [2021-11-21 01:33:19,403 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5627cdfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:33:19, skipping insertion in model container [2021-11-21 01:33:19,403 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:33:19" (1/1) ... [2021-11-21 01:33:19,408 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 01:33:19,461 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 01:33:19,717 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_c9c2bfd4-b22b-4167-bf3e-59e160b56b4c/sv-benchmarks/c/float-newlib/double_req_bl_0670.c[6324,6337] [2021-11-21 01:33:19,720 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:33:19,730 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 01:33:19,785 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_c9c2bfd4-b22b-4167-bf3e-59e160b56b4c/sv-benchmarks/c/float-newlib/double_req_bl_0670.c[6324,6337] [2021-11-21 01:33:19,786 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:33:19,804 INFO L208 MainTranslator]: Completed translation [2021-11-21 01:33:19,805 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:33:19 WrapperNode [2021-11-21 01:33:19,805 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 01:33:19,806 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 01:33:19,806 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 01:33:19,806 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 01:33:19,814 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:33:19" (1/1) ... [2021-11-21 01:33:19,828 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:33:19" (1/1) ... [2021-11-21 01:33:19,873 INFO L137 Inliner]: procedures = 20, calls = 90, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 245 [2021-11-21 01:33:19,873 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 01:33:19,874 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 01:33:19,874 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 01:33:19,874 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 01:33:19,892 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:33:19" (1/1) ... [2021-11-21 01:33:19,893 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:33:19" (1/1) ... [2021-11-21 01:33:19,907 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:33:19" (1/1) ... [2021-11-21 01:33:19,907 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:33:19" (1/1) ... [2021-11-21 01:33:19,933 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:33:19" (1/1) ... [2021-11-21 01:33:19,940 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:33:19" (1/1) ... [2021-11-21 01:33:19,943 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:33:19" (1/1) ... [2021-11-21 01:33:19,948 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 01:33:19,949 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 01:33:19,949 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 01:33:19,950 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 01:33:19,951 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:33:19" (1/1) ... [2021-11-21 01:33:19,959 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:33:19,971 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9c2bfd4-b22b-4167-bf3e-59e160b56b4c/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:33:19,983 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9c2bfd4-b22b-4167-bf3e-59e160b56b4c/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 01:33:20,001 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9c2bfd4-b22b-4167-bf3e-59e160b56b4c/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 01:33:20,034 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2021-11-21 01:33:20,034 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2021-11-21 01:33:20,034 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 01:33:20,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 01:33:20,035 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 01:33:20,035 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-11-21 01:33:20,035 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-21 01:33:20,036 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2021-11-21 01:33:20,036 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2021-11-21 01:33:20,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-11-21 01:33:20,036 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2021-11-21 01:33:20,036 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2021-11-21 01:33:20,037 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 01:33:20,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 01:33:20,037 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-21 01:33:20,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-11-21 01:33:20,037 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 01:33:20,171 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 01:33:20,187 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 01:33:20,799 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 01:33:20,901 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 01:33:20,901 INFO L301 CfgBuilder]: Removed 16 assume(true) statements. [2021-11-21 01:33:20,907 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:33:20 BoogieIcfgContainer [2021-11-21 01:33:20,907 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 01:33:20,909 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 01:33:20,909 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 01:33:20,912 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 01:33:20,913 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 01:33:19" (1/3) ... [2021-11-21 01:33:20,914 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34a14564 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:33:20, skipping insertion in model container [2021-11-21 01:33:20,914 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:33:19" (2/3) ... [2021-11-21 01:33:20,914 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34a14564 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:33:20, skipping insertion in model container [2021-11-21 01:33:20,915 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:33:20" (3/3) ... [2021-11-21 01:33:20,916 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0670.c [2021-11-21 01:33:20,920 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 01:33:20,921 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-21 01:33:20,964 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 01:33:20,971 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 [2021-11-21 01:33:20,971 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-21 01:33:20,991 INFO L276 IsEmpty]: Start isEmpty. Operand has 81 states, 69 states have (on average 1.6666666666666667) internal successors, (115), 70 states have internal predecessors, (115), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-11-21 01:33:20,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-21 01:33:20,998 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:33:20,998 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:33:20,999 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:33:21,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:33:21,005 INFO L85 PathProgramCache]: Analyzing trace with hash 413719227, now seen corresponding path program 1 times [2021-11-21 01:33:21,015 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:33:21,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223467559] [2021-11-21 01:33:21,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:33:21,018 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:33:21,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:33:21,186 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-21 01:33:21,187 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:33:21,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223467559] [2021-11-21 01:33:21,188 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223467559] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:33:21,188 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:33:21,188 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 01:33:21,190 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328907455] [2021-11-21 01:33:21,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:33:21,195 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-21 01:33:21,196 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:33:21,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-21 01:33:21,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-21 01:33:21,226 INFO L87 Difference]: Start difference. First operand has 81 states, 69 states have (on average 1.6666666666666667) internal successors, (115), 70 states have internal predecessors, (115), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-21 01:33:21,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:33:21,284 INFO L93 Difference]: Finished difference Result 155 states and 251 transitions. [2021-11-21 01:33:21,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-21 01:33:21,287 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 19 [2021-11-21 01:33:21,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:33:21,296 INFO L225 Difference]: With dead ends: 155 [2021-11-21 01:33:21,296 INFO L226 Difference]: Without dead ends: 78 [2021-11-21 01:33:21,300 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 [2021-11-21 01:33:21,304 INFO L933 BasicCegarLoop]: 98 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-21 01:33:21,305 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 98 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-21 01:33:21,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2021-11-21 01:33:21,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2021-11-21 01:33:21,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 67 states have (on average 1.4029850746268657) internal successors, (94), 67 states have internal predecessors, (94), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-11-21 01:33:21,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 108 transitions. [2021-11-21 01:33:21,396 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 108 transitions. Word has length 19 [2021-11-21 01:33:21,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:33:21,397 INFO L470 AbstractCegarLoop]: Abstraction has 78 states and 108 transitions. [2021-11-21 01:33:21,398 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-21 01:33:21,398 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 108 transitions. [2021-11-21 01:33:21,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-21 01:33:21,403 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:33:21,403 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:33:21,404 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-21 01:33:21,405 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:33:21,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:33:21,409 INFO L85 PathProgramCache]: Analyzing trace with hash 678382980, now seen corresponding path program 1 times [2021-11-21 01:33:21,410 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:33:21,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89617328] [2021-11-21 01:33:21,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:33:21,411 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:33:21,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-21 01:33:21,522 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-21 01:33:21,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-21 01:33:21,660 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-21 01:33:21,660 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-21 01:33:21,663 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-21 01:33:21,664 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-21 01:33:21,668 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-21 01:33:21,671 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-21 01:33:21,744 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 01:33:21 BoogieIcfgContainer [2021-11-21 01:33:21,748 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-21 01:33:21,749 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-21 01:33:21,749 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-21 01:33:21,749 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-21 01:33:21,750 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:33:20" (3/4) ... [2021-11-21 01:33:21,754 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-21 01:33:21,757 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-21 01:33:21,759 INFO L158 Benchmark]: Toolchain (without parser) took 2374.43ms. Allocated memory was 86.0MB in the beginning and 125.8MB in the end (delta: 39.8MB). Free memory was 48.5MB in the beginning and 83.7MB in the end (delta: -35.2MB). Peak memory consumption was 4.0MB. Max. memory is 16.1GB. [2021-11-21 01:33:21,760 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 86.0MB. Free memory was 64.9MB in the beginning and 64.8MB in the end (delta: 92.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 01:33:21,762 INFO L158 Benchmark]: CACSL2BoogieTranslator took 408.00ms. Allocated memory was 86.0MB in the beginning and 125.8MB in the end (delta: 39.8MB). Free memory was 48.2MB in the beginning and 95.7MB in the end (delta: -47.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-21 01:33:21,763 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.28ms. Allocated memory is still 125.8MB. Free memory was 95.7MB in the beginning and 93.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-21 01:33:21,763 INFO L158 Benchmark]: Boogie Preprocessor took 74.48ms. Allocated memory is still 125.8MB. Free memory was 93.6MB in the beginning and 90.9MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-21 01:33:21,764 INFO L158 Benchmark]: RCFGBuilder took 957.90ms. Allocated memory is still 125.8MB. Free memory was 90.9MB in the beginning and 64.2MB in the end (delta: 26.7MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2021-11-21 01:33:21,764 INFO L158 Benchmark]: TraceAbstraction took 839.08ms. Allocated memory is still 125.8MB. Free memory was 64.2MB in the beginning and 83.7MB in the end (delta: -19.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 01:33:21,764 INFO L158 Benchmark]: Witness Printer took 8.62ms. Allocated memory is still 125.8MB. Free memory is still 83.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 01:33:21,767 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 86.0MB. Free memory was 64.9MB in the beginning and 64.8MB in the end (delta: 92.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 408.00ms. Allocated memory was 86.0MB in the beginning and 125.8MB in the end (delta: 39.8MB). Free memory was 48.2MB in the beginning and 95.7MB in the end (delta: -47.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.28ms. Allocated memory is still 125.8MB. Free memory was 95.7MB in the beginning and 93.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 74.48ms. Allocated memory is still 125.8MB. Free memory was 93.6MB in the beginning and 90.9MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 957.90ms. Allocated memory is still 125.8MB. Free memory was 90.9MB in the beginning and 64.2MB in the end (delta: 26.7MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * TraceAbstraction took 839.08ms. Allocated memory is still 125.8MB. Free memory was 64.2MB in the beginning and 83.7MB in the end (delta: -19.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 8.62ms. Allocated memory is still 125.8MB. Free memory is still 83.7MB. 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: 264]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 164, overapproximation of someUnaryDOUBLEoperation at line 54, overapproximation of bitwiseAnd at line 162, overapproximation of someBinaryArithmeticDOUBLEoperation at line 165, overapproximation of someBinaryDOUBLEComparisonOperation at line 247. Possible FailurePath: [L39-L44] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L46-L51] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L53-L60] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L62-L64] static const double one_atan = 1.0, pi_o_4 = 7.8539816339744827900E-01, pi_o_2 = 1.5707963267948965580E+00, pi = 3.1415926535897931160E+00, huge_atan = 1.0e300; [L141-L142] static const double tiny_atan2 = 1.0e-300, zero_atan2 = 0.0, pi_lo_atan2 = 1.2246467991473531772E-16; [L255] double x = __VERIFIER_nondet_double(); [L256] double y = __VERIFIER_nondet_double(); [L258] CALL, EXPR isnan_double(x) VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L247] return x != x; [L258] RET, EXPR isnan_double(x) VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, isnan_double(x)=1, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003, zero_atan2=0] [L258] isnan_double(x) || isnan_double(y) VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, isnan_double(x)=1, isnan_double(x) || isnan_double(y)=1, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003, zero_atan2=0] [L258] COND TRUE isnan_double(x) || isnan_double(y) [L260] CALL, EXPR __ieee754_atan2(y, x) [L145] double z; [L146] __int32_t k, m, hx, hy, ix, iy; [L147] __uint32_t lx, ly; VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003, \old(y)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003, y=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, zero_atan2=0] [L150] ieee_double_shape_type ew_u; [L151] ew_u.value = (x) [L152] EXPR ew_u.parts.msw [L152] (hx) = ew_u.parts.msw [L153] EXPR ew_u.parts.lsw [L153] (lx) = ew_u.parts.lsw [L155] ix = hx & 0x7fffffff VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003, \old(y)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=-1, lx=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000005, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003, y=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, zero_atan2=0] [L157] ieee_double_shape_type ew_u; [L158] ew_u.value = (y) [L159] EXPR ew_u.parts.msw [L159] (hy) = ew_u.parts.msw [L160] EXPR ew_u.parts.lsw [L160] (ly) = ew_u.parts.lsw [L162] iy = hy & 0x7fffffff VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003, \old(y)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=-1, hy=0, lx=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000005, ly=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003, y=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, zero_atan2=0] [L163-L164] COND TRUE ((ix | ((lx | -lx) >> 31)) > 0x7ff00000) || ((iy | ((ly | -ly) >> 31)) > 0x7ff00000) [L165] return x + y; VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003, \old(y)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=-1, hy=0, lx=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000005, ly=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003, y=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, zero_atan2=0] [L260] RET, EXPR __ieee754_atan2(y, x) [L260] double res = __ieee754_atan2(y, x); [L263] CALL, EXPR isnan_double(res) VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L247] return x != x; [L263] RET, EXPR isnan_double(res) VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, isnan_double(res)=0, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, res=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003, y=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, zero_atan2=0] [L263] COND TRUE !isnan_double(res) [L264] reach_error() VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, res=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003, y=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, zero_atan2=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 81 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 2, 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, 98 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 14 IncrementalHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 98 mSDtfsCounter, 14 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=81occurred 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, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 18 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 2/2 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 [2021-11-21 01:33:21,826 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9c2bfd4-b22b-4167-bf3e-59e160b56b4c/bin/utaipan-TEXQjIfE4P/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_c9c2bfd4-b22b-4167-bf3e-59e160b56b4c/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9c2bfd4-b22b-4167-bf3e-59e160b56b4c/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9c2bfd4-b22b-4167-bf3e-59e160b56b4c/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9c2bfd4-b22b-4167-bf3e-59e160b56b4c/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0670.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9c2bfd4-b22b-4167-bf3e-59e160b56b4c/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9c2bfd4-b22b-4167-bf3e-59e160b56b4c/bin/utaipan-TEXQjIfE4P --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 30960d2adb6c9c20f9f63c6610ee2d41326fba20611a72d2653a7fc816ed7fd3 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 01:33:24,426 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 01:33:24,428 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 01:33:24,472 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 01:33:24,472 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 01:33:24,474 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 01:33:24,476 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 01:33:24,479 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 01:33:24,481 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 01:33:24,483 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 01:33:24,484 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 01:33:24,486 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 01:33:24,486 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 01:33:24,488 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 01:33:24,489 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 01:33:24,491 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 01:33:24,492 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 01:33:24,494 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 01:33:24,496 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 01:33:24,499 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 01:33:24,501 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 01:33:24,502 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 01:33:24,504 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 01:33:24,505 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 01:33:24,509 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 01:33:24,510 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 01:33:24,510 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 01:33:24,512 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 01:33:24,512 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 01:33:24,514 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 01:33:24,514 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 01:33:24,515 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 01:33:24,516 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 01:33:24,517 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 01:33:24,519 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 01:33:24,519 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 01:33:24,520 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 01:33:24,520 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 01:33:24,521 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 01:33:24,522 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 01:33:24,523 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 01:33:24,524 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9c2bfd4-b22b-4167-bf3e-59e160b56b4c/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-21 01:33:24,552 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 01:33:24,552 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 01:33:24,553 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 01:33:24,553 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 01:33:24,554 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 01:33:24,554 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 01:33:24,554 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 01:33:24,555 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 01:33:24,555 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 01:33:24,555 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 01:33:24,556 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 01:33:24,556 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 01:33:24,557 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 01:33:24,557 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-21 01:33:24,557 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-21 01:33:24,558 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 01:33:24,558 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 01:33:24,558 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 01:33:24,558 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 01:33:24,559 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-21 01:33:24,559 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-21 01:33:24,559 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-21 01:33:24,559 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 01:33:24,560 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 01:33:24,560 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 01:33:24,560 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 01:33:24,561 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-21 01:33:24,561 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 01:33:24,561 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:33:24,562 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 01:33:24,562 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 01:33:24,562 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 01:33:24,562 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-21 01:33:24,563 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-21 01:33:24,563 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 01:33:24,563 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 01:33:24,563 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 01:33:24,564 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_c9c2bfd4-b22b-4167-bf3e-59e160b56b4c/bin/utaipan-TEXQjIfE4P/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9c2bfd4-b22b-4167-bf3e-59e160b56b4c/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 30960d2adb6c9c20f9f63c6610ee2d41326fba20611a72d2653a7fc816ed7fd3 [2021-11-21 01:33:24,972 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 01:33:25,002 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 01:33:25,006 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 01:33:25,008 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 01:33:25,009 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 01:33:25,010 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9c2bfd4-b22b-4167-bf3e-59e160b56b4c/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/float-newlib/double_req_bl_0670.c [2021-11-21 01:33:25,094 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9c2bfd4-b22b-4167-bf3e-59e160b56b4c/bin/utaipan-TEXQjIfE4P/data/cf0c13c4e/9a9512f96a554224be4f2eaa92f48c52/FLAG398793782 [2021-11-21 01:33:25,803 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 01:33:25,808 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9c2bfd4-b22b-4167-bf3e-59e160b56b4c/sv-benchmarks/c/float-newlib/double_req_bl_0670.c [2021-11-21 01:33:25,821 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9c2bfd4-b22b-4167-bf3e-59e160b56b4c/bin/utaipan-TEXQjIfE4P/data/cf0c13c4e/9a9512f96a554224be4f2eaa92f48c52/FLAG398793782 [2021-11-21 01:33:26,084 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9c2bfd4-b22b-4167-bf3e-59e160b56b4c/bin/utaipan-TEXQjIfE4P/data/cf0c13c4e/9a9512f96a554224be4f2eaa92f48c52 [2021-11-21 01:33:26,088 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 01:33:26,091 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 01:33:26,093 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 01:33:26,093 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 01:33:26,097 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 01:33:26,098 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:33:26" (1/1) ... [2021-11-21 01:33:26,099 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e03d6ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:33:26, skipping insertion in model container [2021-11-21 01:33:26,100 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:33:26" (1/1) ... [2021-11-21 01:33:26,108 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 01:33:26,144 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 01:33:26,352 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_c9c2bfd4-b22b-4167-bf3e-59e160b56b4c/sv-benchmarks/c/float-newlib/double_req_bl_0670.c[6324,6337] [2021-11-21 01:33:26,356 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:33:26,381 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 01:33:26,516 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_c9c2bfd4-b22b-4167-bf3e-59e160b56b4c/sv-benchmarks/c/float-newlib/double_req_bl_0670.c[6324,6337] [2021-11-21 01:33:26,517 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:33:26,553 INFO L208 MainTranslator]: Completed translation [2021-11-21 01:33:26,554 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:33:26 WrapperNode [2021-11-21 01:33:26,554 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 01:33:26,555 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 01:33:26,556 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 01:33:26,556 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 01:33:26,563 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:33:26" (1/1) ... [2021-11-21 01:33:26,595 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:33:26" (1/1) ... [2021-11-21 01:33:26,627 INFO L137 Inliner]: procedures = 23, calls = 90, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 243 [2021-11-21 01:33:26,627 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 01:33:26,628 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 01:33:26,628 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 01:33:26,629 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 01:33:26,638 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:33:26" (1/1) ... [2021-11-21 01:33:26,638 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:33:26" (1/1) ... [2021-11-21 01:33:26,646 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:33:26" (1/1) ... [2021-11-21 01:33:26,647 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:33:26" (1/1) ... [2021-11-21 01:33:26,670 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:33:26" (1/1) ... [2021-11-21 01:33:26,693 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:33:26" (1/1) ... [2021-11-21 01:33:26,703 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:33:26" (1/1) ... [2021-11-21 01:33:26,709 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 01:33:26,719 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 01:33:26,719 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 01:33:26,720 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 01:33:26,721 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:33:26" (1/1) ... [2021-11-21 01:33:26,728 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:33:26,742 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9c2bfd4-b22b-4167-bf3e-59e160b56b4c/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:33:26,756 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9c2bfd4-b22b-4167-bf3e-59e160b56b4c/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 01:33:26,774 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9c2bfd4-b22b-4167-bf3e-59e160b56b4c/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 01:33:26,809 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_double [2021-11-21 01:33:26,809 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_double [2021-11-21 01:33:26,809 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 01:33:26,810 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-11-21 01:33:26,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-11-21 01:33:26,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-21 01:33:26,810 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 01:33:26,811 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_double [2021-11-21 01:33:26,811 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_double [2021-11-21 01:33:26,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2021-11-21 01:33:26,811 INFO L130 BoogieDeclarations]: Found specification of procedure atan_double [2021-11-21 01:33:26,811 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_double [2021-11-21 01:33:26,812 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-21 01:33:26,812 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 01:33:26,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 01:33:26,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-21 01:33:26,812 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 01:33:26,940 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 01:33:26,943 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 01:33:48,147 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 01:33:48,156 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 01:33:48,156 INFO L301 CfgBuilder]: Removed 16 assume(true) statements. [2021-11-21 01:33:48,159 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:33:48 BoogieIcfgContainer [2021-11-21 01:33:48,159 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 01:33:48,161 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 01:33:48,162 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 01:33:48,169 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 01:33:48,169 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 01:33:26" (1/3) ... [2021-11-21 01:33:48,170 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e9afbdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:33:48, skipping insertion in model container [2021-11-21 01:33:48,170 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:33:26" (2/3) ... [2021-11-21 01:33:48,171 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e9afbdb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:33:48, skipping insertion in model container [2021-11-21 01:33:48,171 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:33:48" (3/3) ... [2021-11-21 01:33:48,173 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0670.c [2021-11-21 01:33:48,179 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 01:33:48,179 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-21 01:33:48,232 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 01:33:48,239 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 [2021-11-21 01:33:48,239 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-21 01:33:48,258 INFO L276 IsEmpty]: Start isEmpty. Operand has 103 states, 91 states have (on average 1.6373626373626373) internal successors, (149), 92 states have internal predecessors, (149), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-11-21 01:33:48,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-21 01:33:48,265 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:33:48,265 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:33:48,266 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:33:48,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:33:48,272 INFO L85 PathProgramCache]: Analyzing trace with hash 428190998, now seen corresponding path program 1 times [2021-11-21 01:33:48,285 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 01:33:48,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [284631075] [2021-11-21 01:33:48,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:33:48,286 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 01:33:48,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9c2bfd4-b22b-4167-bf3e-59e160b56b4c/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 01:33:48,287 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9c2bfd4-b22b-4167-bf3e-59e160b56b4c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 01:33:48,292 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9c2bfd4-b22b-4167-bf3e-59e160b56b4c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-21 01:33:48,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:33:48,736 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-21 01:33:48,741 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:33:49,044 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:33:49,045 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:33:49,258 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-21 01:33:49,259 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 01:33:49,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [284631075] [2021-11-21 01:33:49,259 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [284631075] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 01:33:49,260 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:33:49,260 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-21 01:33:49,261 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265419780] [2021-11-21 01:33:49,262 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 01:33:49,275 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-21 01:33:49,276 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 01:33:49,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-21 01:33:49,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-21 01:33:49,317 INFO L87 Difference]: Start difference. First operand has 103 states, 91 states have (on average 1.6373626373626373) internal successors, (149), 92 states have internal predecessors, (149), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-21 01:33:49,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:33:49,384 INFO L93 Difference]: Finished difference Result 198 states and 318 transitions. [2021-11-21 01:33:49,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-21 01:33:49,386 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 21 [2021-11-21 01:33:49,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:33:49,397 INFO L225 Difference]: With dead ends: 198 [2021-11-21 01:33:49,398 INFO L226 Difference]: Without dead ends: 99 [2021-11-21 01:33:49,403 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-21 01:33:49,417 INFO L933 BasicCegarLoop]: 146 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, 146 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 [2021-11-21 01:33:49,417 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-21 01:33:49,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2021-11-21 01:33:49,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2021-11-21 01:33:49,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 88 states have (on average 1.4431818181818181) internal successors, (127), 88 states have internal predecessors, (127), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-11-21 01:33:49,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 141 transitions. [2021-11-21 01:33:49,470 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 141 transitions. Word has length 21 [2021-11-21 01:33:49,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:33:49,471 INFO L470 AbstractCegarLoop]: Abstraction has 99 states and 141 transitions. [2021-11-21 01:33:49,472 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-21 01:33:49,472 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 141 transitions. [2021-11-21 01:33:49,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-21 01:33:49,476 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:33:49,476 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:33:49,499 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9c2bfd4-b22b-4167-bf3e-59e160b56b4c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-21 01:33:49,685 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9c2bfd4-b22b-4167-bf3e-59e160b56b4c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 01:33:49,686 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:33:49,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:33:49,687 INFO L85 PathProgramCache]: Analyzing trace with hash 153755487, now seen corresponding path program 1 times [2021-11-21 01:33:49,688 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 01:33:49,688 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [748912161] [2021-11-21 01:33:49,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:33:49,689 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 01:33:49,694 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9c2bfd4-b22b-4167-bf3e-59e160b56b4c/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 01:33:49,695 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9c2bfd4-b22b-4167-bf3e-59e160b56b4c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 01:33:49,708 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9c2bfd4-b22b-4167-bf3e-59e160b56b4c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-21 01:33:50,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:33:50,067 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-21 01:33:50,070 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:33:58,740 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:33:58,741 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:34:35,857 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-21 01:34:35,858 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 01:34:35,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [748912161] [2021-11-21 01:34:35,858 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [748912161] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 01:34:35,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [951349966] [2021-11-21 01:34:35,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:34:35,859 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-21 01:34:35,859 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9c2bfd4-b22b-4167-bf3e-59e160b56b4c/bin/utaipan-TEXQjIfE4P/cvc4 [2021-11-21 01:34:35,861 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9c2bfd4-b22b-4167-bf3e-59e160b56b4c/bin/utaipan-TEXQjIfE4P/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-21 01:34:35,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9c2bfd4-b22b-4167-bf3e-59e160b56b4c/bin/utaipan-TEXQjIfE4P/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2021-11-21 01:34:39,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:34:39,335 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-21 01:34:39,337 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:34:48,642 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-21 01:34:48,642 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:35:04,822 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-21 01:35:04,822 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [951349966] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-21 01:35:04,822 INFO L186 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2021-11-21 01:35:04,823 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [12, 11, 10] total 27 [2021-11-21 01:35:04,824 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103216134] [2021-11-21 01:35:04,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:35:04,824 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-21 01:35:04,825 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 01:35:04,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-21 01:35:04,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=605, Unknown=0, NotChecked=0, Total=702 [2021-11-21 01:35:04,826 INFO L87 Difference]: Start difference. First operand 99 states and 141 transitions. Second operand has 9 states, 8 states have (on average 2.125) internal successors, (17), 7 states have internal predecessors, (17), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-21 01:35:13,862 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:35:15,333 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:35:19,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:35:19,184 INFO L93 Difference]: Finished difference Result 161 states and 233 transitions. [2021-11-21 01:35:19,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-21 01:35:19,191 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.125) internal successors, (17), 7 states have internal predecessors, (17), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 23 [2021-11-21 01:35:19,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:35:19,195 INFO L225 Difference]: With dead ends: 161 [2021-11-21 01:35:19,195 INFO L226 Difference]: Without dead ends: 156 [2021-11-21 01:35:19,196 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 59 SyntacticMatches, 4 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 6 DeprecatedPredicates, 360 ImplicationChecksByTransitivity, 53.7s TimeCoverageRelationStatistics Valid=132, Invalid=798, Unknown=0, NotChecked=0, Total=930 [2021-11-21 01:35:19,198 INFO L933 BasicCegarLoop]: 134 mSDtfsCounter, 79 mSDsluCounter, 906 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 1040 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2021-11-21 01:35:19,200 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [83 Valid, 1040 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 8.1s Time] [2021-11-21 01:35:19,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2021-11-21 01:35:19,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 107. [2021-11-21 01:35:19,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 96 states have (on average 1.40625) internal successors, (135), 96 states have internal predecessors, (135), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-11-21 01:35:19,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 149 transitions. [2021-11-21 01:35:19,227 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 149 transitions. Word has length 23 [2021-11-21 01:35:19,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:35:19,228 INFO L470 AbstractCegarLoop]: Abstraction has 107 states and 149 transitions. [2021-11-21 01:35:19,228 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.125) internal successors, (17), 7 states have internal predecessors, (17), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-21 01:35:19,228 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 149 transitions. [2021-11-21 01:35:19,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-21 01:35:19,230 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:35:19,230 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:35:19,248 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9c2bfd4-b22b-4167-bf3e-59e160b56b4c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-21 01:35:19,437 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9c2bfd4-b22b-4167-bf3e-59e160b56b4c/bin/utaipan-TEXQjIfE4P/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2021-11-21 01:35:19,631 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9c2bfd4-b22b-4167-bf3e-59e160b56b4c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9c2bfd4-b22b-4167-bf3e-59e160b56b4c/bin/utaipan-TEXQjIfE4P/cvc4 --incremental --print-success --lang smt [2021-11-21 01:35:19,631 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:35:19,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:35:19,632 INFO L85 PathProgramCache]: Analyzing trace with hash -1648561424, now seen corresponding path program 1 times [2021-11-21 01:35:19,632 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 01:35:19,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1519795807] [2021-11-21 01:35:19,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:35:19,633 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 01:35:19,633 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9c2bfd4-b22b-4167-bf3e-59e160b56b4c/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 01:35:19,634 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9c2bfd4-b22b-4167-bf3e-59e160b56b4c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 01:35:19,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9c2bfd4-b22b-4167-bf3e-59e160b56b4c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-21 01:35:19,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:35:19,995 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-21 01:35:19,997 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:35:27,686 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-21 01:35:27,686 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:35:58,326 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-21 01:35:58,326 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 01:35:58,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1519795807] [2021-11-21 01:35:58,327 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1519795807] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-21 01:35:58,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [590480068] [2021-11-21 01:35:58,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:35:58,327 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-21 01:35:58,328 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9c2bfd4-b22b-4167-bf3e-59e160b56b4c/bin/utaipan-TEXQjIfE4P/cvc4 [2021-11-21 01:35:58,334 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9c2bfd4-b22b-4167-bf3e-59e160b56b4c/bin/utaipan-TEXQjIfE4P/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-21 01:35:58,337 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9c2bfd4-b22b-4167-bf3e-59e160b56b4c/bin/utaipan-TEXQjIfE4P/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2021-11-21 01:36:01,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:36:01,737 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-21 01:36:01,743 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:36:14,073 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-21 01:36:14,073 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:36:30,276 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-21 01:36:30,276 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [590480068] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-21 01:36:30,276 INFO L186 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2021-11-21 01:36:30,276 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [11, 10, 10] total 27 [2021-11-21 01:36:30,277 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751871897] [2021-11-21 01:36:30,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:36:30,277 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-21 01:36:30,277 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 01:36:30,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-21 01:36:30,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=613, Unknown=0, NotChecked=0, Total=702 [2021-11-21 01:36:30,278 INFO L87 Difference]: Start difference. First operand 107 states and 149 transitions. Second operand has 11 states, 10 states have (on average 2.0) internal successors, (20), 8 states have internal predecessors, (20), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-21 01:36:34,460 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:36:36,768 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:36:48,413 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:36:50,583 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:36:52,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:36:52,057 INFO L93 Difference]: Finished difference Result 161 states and 232 transitions. [2021-11-21 01:36:52,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-21 01:36:52,058 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.0) internal successors, (20), 8 states have internal predecessors, (20), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 28 [2021-11-21 01:36:52,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:36:52,060 INFO L225 Difference]: With dead ends: 161 [2021-11-21 01:36:52,061 INFO L226 Difference]: Without dead ends: 156 [2021-11-21 01:36:52,062 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 79 SyntacticMatches, 4 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 6 DeprecatedPredicates, 360 ImplicationChecksByTransitivity, 48.2s TimeCoverageRelationStatistics Valid=132, Invalid=860, Unknown=0, NotChecked=0, Total=992 [2021-11-21 01:36:52,064 INFO L933 BasicCegarLoop]: 216 mSDtfsCounter, 79 mSDsluCounter, 1804 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 2020 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.4s IncrementalHoareTripleChecker+Time [2021-11-21 01:36:52,064 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [84 Valid, 2020 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 14.4s Time] [2021-11-21 01:36:52,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2021-11-21 01:36:52,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 112. [2021-11-21 01:36:52,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 101 states have (on average 1.4059405940594059) internal successors, (142), 101 states have internal predecessors, (142), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-11-21 01:36:52,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 156 transitions. [2021-11-21 01:36:52,078 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 156 transitions. Word has length 28 [2021-11-21 01:36:52,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:36:52,079 INFO L470 AbstractCegarLoop]: Abstraction has 112 states and 156 transitions. [2021-11-21 01:36:52,079 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.0) internal successors, (20), 8 states have internal predecessors, (20), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-21 01:36:52,079 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 156 transitions. [2021-11-21 01:36:52,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-21 01:36:52,081 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:36:52,081 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:36:52,094 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9c2bfd4-b22b-4167-bf3e-59e160b56b4c/bin/utaipan-TEXQjIfE4P/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0 [2021-11-21 01:36:52,305 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9c2bfd4-b22b-4167-bf3e-59e160b56b4c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-21 01:36:52,491 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9c2bfd4-b22b-4167-bf3e-59e160b56b4c/bin/utaipan-TEXQjIfE4P/cvc4 --incremental --print-success --lang smt,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9c2bfd4-b22b-4167-bf3e-59e160b56b4c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 01:36:52,491 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:36:52,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:36:52,492 INFO L85 PathProgramCache]: Analyzing trace with hash -1202914850, now seen corresponding path program 1 times [2021-11-21 01:36:52,493 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 01:36:52,493 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1456829235] [2021-11-21 01:36:52,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:36:52,493 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 01:36:52,493 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9c2bfd4-b22b-4167-bf3e-59e160b56b4c/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 01:36:52,502 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9c2bfd4-b22b-4167-bf3e-59e160b56b4c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 01:36:52,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9c2bfd4-b22b-4167-bf3e-59e160b56b4c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-21 01:36:52,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:36:52,889 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-21 01:36:52,891 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:36:56,379 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:36:56,380 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:37:03,881 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-21 01:37:03,881 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 01:37:03,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1456829235] [2021-11-21 01:37:03,881 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1456829235] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-21 01:37:03,882 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-21 01:37:03,882 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 16 [2021-11-21 01:37:03,882 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676961319] [2021-11-21 01:37:03,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:37:03,883 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-21 01:37:03,883 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 01:37:03,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-21 01:37:03,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2021-11-21 01:37:03,884 INFO L87 Difference]: Start difference. First operand 112 states and 156 transitions. Second operand has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 8 states have internal predecessors, (24), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-21 01:37:07,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:37:07,046 INFO L93 Difference]: Finished difference Result 130 states and 179 transitions. [2021-11-21 01:37:07,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-21 01:37:07,048 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 8 states have internal predecessors, (24), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 28 [2021-11-21 01:37:07,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:37:07,052 INFO L225 Difference]: With dead ends: 130 [2021-11-21 01:37:07,052 INFO L226 Difference]: Without dead ends: 120 [2021-11-21 01:37:07,053 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 8.9s TimeCoverageRelationStatistics Valid=74, Invalid=306, Unknown=0, NotChecked=0, Total=380 [2021-11-21 01:37:07,054 INFO L933 BasicCegarLoop]: 130 mSDtfsCounter, 24 mSDsluCounter, 892 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 1022 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 29 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-11-21 01:37:07,055 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [25 Valid, 1022 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 43 Invalid, 0 Unknown, 29 Unchecked, 1.0s Time] [2021-11-21 01:37:07,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2021-11-21 01:37:07,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 116. [2021-11-21 01:37:07,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 105 states have (on average 1.4095238095238096) internal successors, (148), 105 states have internal predecessors, (148), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-11-21 01:37:07,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 162 transitions. [2021-11-21 01:37:07,070 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 162 transitions. Word has length 28 [2021-11-21 01:37:07,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:37:07,071 INFO L470 AbstractCegarLoop]: Abstraction has 116 states and 162 transitions. [2021-11-21 01:37:07,071 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 8 states have internal predecessors, (24), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-21 01:37:07,071 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 162 transitions. [2021-11-21 01:37:07,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-21 01:37:07,073 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:37:07,074 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:37:07,097 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9c2bfd4-b22b-4167-bf3e-59e160b56b4c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2021-11-21 01:37:07,297 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9c2bfd4-b22b-4167-bf3e-59e160b56b4c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 01:37:07,297 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:37:07,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:37:07,298 INFO L85 PathProgramCache]: Analyzing trace with hash -777985440, now seen corresponding path program 1 times [2021-11-21 01:37:07,298 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 01:37:07,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1657212733] [2021-11-21 01:37:07,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:37:07,299 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 01:37:07,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9c2bfd4-b22b-4167-bf3e-59e160b56b4c/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 01:37:07,301 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9c2bfd4-b22b-4167-bf3e-59e160b56b4c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 01:37:07,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9c2bfd4-b22b-4167-bf3e-59e160b56b4c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-21 01:37:07,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:37:07,693 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-21 01:37:07,695 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:37:09,947 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 34 [2021-11-21 01:37:11,528 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:37:11,528 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:37:14,727 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 44 [2021-11-21 01:37:17,316 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-21 01:37:17,316 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 01:37:17,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1657212733] [2021-11-21 01:37:17,317 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1657212733] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-21 01:37:17,317 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-21 01:37:17,317 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 14 [2021-11-21 01:37:17,317 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40501746] [2021-11-21 01:37:17,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:37:17,318 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-21 01:37:17,318 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 01:37:17,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-21 01:37:17,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=149, Unknown=1, NotChecked=0, Total=182 [2021-11-21 01:37:17,319 INFO L87 Difference]: Start difference. First operand 116 states and 162 transitions. Second operand has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 8 states have internal predecessors, (24), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-21 01:37:20,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:37:20,259 INFO L93 Difference]: Finished difference Result 189 states and 265 transitions. [2021-11-21 01:37:20,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-21 01:37:20,260 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 8 states have internal predecessors, (24), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 28 [2021-11-21 01:37:20,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:37:20,261 INFO L225 Difference]: With dead ends: 189 [2021-11-21 01:37:20,261 INFO L226 Difference]: Without dead ends: 99 [2021-11-21 01:37:20,263 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 41 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 8.3s TimeCoverageRelationStatistics Valid=61, Invalid=244, Unknown=1, NotChecked=0, Total=306 [2021-11-21 01:37:20,264 INFO L933 BasicCegarLoop]: 130 mSDtfsCounter, 10 mSDsluCounter, 886 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 1016 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 34 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-11-21 01:37:20,265 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 1016 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 44 Invalid, 0 Unknown, 34 Unchecked, 0.9s Time] [2021-11-21 01:37:20,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2021-11-21 01:37:20,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2021-11-21 01:37:20,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 88 states have (on average 1.4090909090909092) internal successors, (124), 88 states have internal predecessors, (124), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-11-21 01:37:20,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 138 transitions. [2021-11-21 01:37:20,278 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 138 transitions. Word has length 28 [2021-11-21 01:37:20,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:37:20,279 INFO L470 AbstractCegarLoop]: Abstraction has 99 states and 138 transitions. [2021-11-21 01:37:20,279 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 8 states have internal predecessors, (24), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-21 01:37:20,279 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 138 transitions. [2021-11-21 01:37:20,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-21 01:37:20,281 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:37:20,282 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:37:20,311 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9c2bfd4-b22b-4167-bf3e-59e160b56b4c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-21 01:37:20,505 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9c2bfd4-b22b-4167-bf3e-59e160b56b4c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 01:37:20,505 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:37:20,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:37:20,506 INFO L85 PathProgramCache]: Analyzing trace with hash 888453357, now seen corresponding path program 1 times [2021-11-21 01:37:20,506 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 01:37:20,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [169417339] [2021-11-21 01:37:20,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:37:20,507 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 01:37:20,507 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9c2bfd4-b22b-4167-bf3e-59e160b56b4c/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 01:37:20,508 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9c2bfd4-b22b-4167-bf3e-59e160b56b4c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 01:37:20,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9c2bfd4-b22b-4167-bf3e-59e160b56b4c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-21 01:37:20,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:37:20,984 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-21 01:37:20,986 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:37:23,086 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 34 [2021-11-21 01:37:24,152 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-21 01:37:24,152 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:37:27,172 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 44 [2021-11-21 01:37:30,017 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-21 01:37:30,017 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 01:37:30,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [169417339] [2021-11-21 01:37:30,017 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [169417339] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-21 01:37:30,018 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-21 01:37:30,018 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 13 [2021-11-21 01:37:30,018 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103212287] [2021-11-21 01:37:30,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:37:30,018 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-21 01:37:30,019 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 01:37:30,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-21 01:37:30,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=127, Unknown=1, NotChecked=0, Total=156 [2021-11-21 01:37:30,020 INFO L87 Difference]: Start difference. First operand 99 states and 138 transitions. Second operand has 8 states, 8 states have (on average 3.375) internal successors, (27), 7 states have internal predecessors, (27), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-21 01:37:32,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:37:32,294 INFO L93 Difference]: Finished difference Result 102 states and 140 transitions. [2021-11-21 01:37:32,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-21 01:37:32,295 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.375) internal successors, (27), 7 states have internal predecessors, (27), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 33 [2021-11-21 01:37:32,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:37:32,295 INFO L225 Difference]: With dead ends: 102 [2021-11-21 01:37:32,295 INFO L226 Difference]: Without dead ends: 0 [2021-11-21 01:37:32,297 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 52 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=39, Invalid=170, Unknown=1, NotChecked=0, Total=210 [2021-11-21 01:37:32,298 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 3 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 10 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-11-21 01:37:32,299 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 71 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 10 Unchecked, 1.2s Time] [2021-11-21 01:37:32,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-21 01:37:32,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-21 01:37:32,300 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) [2021-11-21 01:37:32,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-21 01:37:32,312 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2021-11-21 01:37:32,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:37:32,312 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-21 01:37:32,313 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.375) internal successors, (27), 7 states have internal predecessors, (27), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-21 01:37:32,313 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-21 01:37:32,313 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-21 01:37:32,315 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-21 01:37:32,334 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9c2bfd4-b22b-4167-bf3e-59e160b56b4c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-21 01:37:32,518 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9c2bfd4-b22b-4167-bf3e-59e160b56b4c/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 01:37:32,519 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-21 01:37:35,284 INFO L861 garLoopResultBuilder]: At program point isnan_doubleENTRY(line 247) the Hoare annotation is: true [2021-11-21 01:37:35,284 INFO L858 garLoopResultBuilder]: For program point isnan_doubleEXIT(line 247) no Hoare annotation was computed. [2021-11-21 01:37:35,285 INFO L858 garLoopResultBuilder]: For program point isnan_doubleFINAL(line 247) no Hoare annotation was computed. [2021-11-21 01:37:35,285 INFO L858 garLoopResultBuilder]: For program point L26(lines 26 31) no Hoare annotation was computed. [2021-11-21 01:37:35,285 INFO L858 garLoopResultBuilder]: For program point L26-1(lines 19 33) no Hoare annotation was computed. [2021-11-21 01:37:35,285 INFO L858 garLoopResultBuilder]: For program point fabs_doubleEXIT(lines 19 33) no Hoare annotation was computed. [2021-11-21 01:37:35,285 INFO L858 garLoopResultBuilder]: For program point L26-2(lines 26 31) no Hoare annotation was computed. [2021-11-21 01:37:35,285 INFO L861 garLoopResultBuilder]: At program point fabs_doubleENTRY(lines 19 33) the Hoare annotation is: true [2021-11-21 01:37:35,285 INFO L858 garLoopResultBuilder]: For program point L21-1(lines 21 25) no Hoare annotation was computed. [2021-11-21 01:37:35,286 INFO L861 garLoopResultBuilder]: At program point L21-2(lines 21 25) the Hoare annotation is: true [2021-11-21 01:37:35,286 INFO L858 garLoopResultBuilder]: For program point fabs_doubleFINAL(lines 19 33) no Hoare annotation was computed. [2021-11-21 01:37:35,286 INFO L861 garLoopResultBuilder]: At program point L97(line 97) the Hoare annotation is: true [2021-11-21 01:37:35,287 INFO L858 garLoopResultBuilder]: For program point L97-1(line 97) no Hoare annotation was computed. [2021-11-21 01:37:35,288 INFO L858 garLoopResultBuilder]: For program point L85(lines 85 88) no Hoare annotation was computed. [2021-11-21 01:37:35,288 INFO L858 garLoopResultBuilder]: For program point L98(lines 98 114) no Hoare annotation was computed. [2021-11-21 01:37:35,288 INFO L858 garLoopResultBuilder]: For program point L90(lines 90 115) no Hoare annotation was computed. [2021-11-21 01:37:35,288 INFO L858 garLoopResultBuilder]: For program point L78-1(lines 78 82) no Hoare annotation was computed. [2021-11-21 01:37:35,289 INFO L861 garLoopResultBuilder]: At program point L78-2(lines 78 82) the Hoare annotation is: true [2021-11-21 01:37:35,289 INFO L858 garLoopResultBuilder]: For program point L78-3(lines 76 89) no Hoare annotation was computed. [2021-11-21 01:37:35,289 INFO L858 garLoopResultBuilder]: For program point L107(lines 107 113) no Hoare annotation was computed. [2021-11-21 01:37:35,289 INFO L858 garLoopResultBuilder]: For program point L107-2(lines 90 115) no Hoare annotation was computed. [2021-11-21 01:37:35,291 INFO L858 garLoopResultBuilder]: For program point L70-1(lines 70 74) no Hoare annotation was computed. [2021-11-21 01:37:35,292 INFO L861 garLoopResultBuilder]: At program point L70-2(lines 70 74) the Hoare annotation is: true [2021-11-21 01:37:35,292 INFO L858 garLoopResultBuilder]: For program point L132(line 132) no Hoare annotation was computed. [2021-11-21 01:37:35,292 INFO L858 garLoopResultBuilder]: For program point L70-3(lines 70 74) no Hoare annotation was computed. [2021-11-21 01:37:35,292 INFO L858 garLoopResultBuilder]: For program point L99(lines 99 105) no Hoare annotation was computed. [2021-11-21 01:37:35,292 INFO L858 garLoopResultBuilder]: For program point L132-2(line 132) no Hoare annotation was computed. [2021-11-21 01:37:35,292 INFO L858 garLoopResultBuilder]: For program point L128(lines 128 133) no Hoare annotation was computed. [2021-11-21 01:37:35,292 INFO L858 garLoopResultBuilder]: For program point L91(lines 91 94) no Hoare annotation was computed. [2021-11-21 01:37:35,294 INFO L858 garLoopResultBuilder]: For program point L91-2(lines 91 94) no Hoare annotation was computed. [2021-11-21 01:37:35,295 INFO L858 garLoopResultBuilder]: For program point atan_doubleEXIT(lines 66 134) no Hoare annotation was computed. [2021-11-21 01:37:35,295 INFO L858 garLoopResultBuilder]: For program point L92(lines 92 93) no Hoare annotation was computed. [2021-11-21 01:37:35,296 INFO L861 garLoopResultBuilder]: At program point atan_doubleENTRY(lines 66 134) the Hoare annotation is: true [2021-11-21 01:37:35,296 INFO L858 garLoopResultBuilder]: For program point L76(lines 76 89) no Hoare annotation was computed. [2021-11-21 01:37:35,296 INFO L858 garLoopResultBuilder]: For program point atan_doubleFINAL(lines 66 134) no Hoare annotation was computed. [2021-11-21 01:37:35,296 INFO L858 garLoopResultBuilder]: For program point L217(lines 217 220) no Hoare annotation was computed. [2021-11-21 01:37:35,296 INFO L858 garLoopResultBuilder]: For program point L217-2(lines 215 220) no Hoare annotation was computed. [2021-11-21 01:37:35,296 INFO L858 garLoopResultBuilder]: For program point L201(line 201) no Hoare annotation was computed. [2021-11-21 01:37:35,296 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-21 01:37:35,296 INFO L858 garLoopResultBuilder]: For program point L185(lines 185 209) no Hoare annotation was computed. [2021-11-21 01:37:35,296 INFO L858 garLoopResultBuilder]: For program point L185-1(lines 144 244) no Hoare annotation was computed. [2021-11-21 01:37:35,296 INFO L858 garLoopResultBuilder]: For program point L186(lines 186 208) no Hoare annotation was computed. [2021-11-21 01:37:35,297 INFO L861 garLoopResultBuilder]: At program point L269(lines 249 270) the Hoare annotation is: true [2021-11-21 01:37:35,297 INFO L858 garLoopResultBuilder]: For program point L203(line 203) no Hoare annotation was computed. [2021-11-21 01:37:35,300 INFO L858 garLoopResultBuilder]: For program point L170(lines 170 180) no Hoare annotation was computed. [2021-11-21 01:37:35,300 INFO L858 garLoopResultBuilder]: For program point L170-2(lines 144 244) no Hoare annotation was computed. [2021-11-21 01:37:35,301 INFO L854 garLoopResultBuilder]: At program point L220(line 220) the Hoare annotation is: false [2021-11-21 01:37:35,301 INFO L858 garLoopResultBuilder]: For program point L187(lines 187 196) no Hoare annotation was computed. [2021-11-21 01:37:35,301 INFO L854 garLoopResultBuilder]: At program point L220-1(line 220) the Hoare annotation is: false [2021-11-21 01:37:35,301 INFO L858 garLoopResultBuilder]: For program point L220-2(line 220) no Hoare annotation was computed. [2021-11-21 01:37:35,301 INFO L858 garLoopResultBuilder]: For program point L171(lines 171 179) no Hoare annotation was computed. [2021-11-21 01:37:35,301 INFO L858 garLoopResultBuilder]: For program point L221(lines 221 243) no Hoare annotation was computed. [2021-11-21 01:37:35,301 INFO L858 garLoopResultBuilder]: For program point L188(line 188) no Hoare annotation was computed. [2021-11-21 01:37:35,301 INFO L858 garLoopResultBuilder]: For program point L205(line 205) no Hoare annotation was computed. [2021-11-21 01:37:35,302 INFO L858 garLoopResultBuilder]: For program point L172(line 172) no Hoare annotation was computed. [2021-11-21 01:37:35,302 INFO L858 garLoopResultBuilder]: For program point L172-2(line 172) no Hoare annotation was computed. [2021-11-21 01:37:35,302 INFO L858 garLoopResultBuilder]: For program point L222(line 222) no Hoare annotation was computed. [2021-11-21 01:37:35,302 INFO L858 garLoopResultBuilder]: For program point L156-1(lines 156 161) no Hoare annotation was computed. [2021-11-21 01:37:35,302 INFO L854 garLoopResultBuilder]: At program point L156-2(lines 156 161) the Hoare annotation is: (or (not (fp.eq |ULTIMATE.start___ieee754_atan2_~y#1| |ULTIMATE.start___ieee754_atan2_~y#1|)) (and (exists ((|v_skolemized_q#valueAsBitvector_22| (_ BitVec 64))) (and (= (bvand (_ bv2147483647 32) ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_22|)) |ULTIMATE.start___ieee754_atan2_~ix~1#1|) (= ((_ extract 31 0) |v_skolemized_q#valueAsBitvector_22|) |ULTIMATE.start___ieee754_atan2_~lx~0#1|) (not (let ((.cse0 (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_22|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_22|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_22|)))) (fp.eq .cse0 .cse0))))) (not (fp.eq |ULTIMATE.start___ieee754_atan2_~x#1| |ULTIMATE.start___ieee754_atan2_~x#1|)))) [2021-11-21 01:37:35,302 INFO L858 garLoopResultBuilder]: For program point L156-3(lines 156 161) no Hoare annotation was computed. [2021-11-21 01:37:35,302 INFO L858 garLoopResultBuilder]: For program point L239(line 239) no Hoare annotation was computed. [2021-11-21 01:37:35,302 INFO L858 garLoopResultBuilder]: For program point L173(line 173) no Hoare annotation was computed. [2021-11-21 01:37:35,302 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-21 01:37:35,302 INFO L858 garLoopResultBuilder]: For program point L190(line 190) no Hoare annotation was computed. [2021-11-21 01:37:35,302 INFO L858 garLoopResultBuilder]: For program point L224(line 224) no Hoare annotation was computed. [2021-11-21 01:37:35,303 INFO L858 garLoopResultBuilder]: For program point L241(line 241) no Hoare annotation was computed. [2021-11-21 01:37:35,303 INFO L858 garLoopResultBuilder]: For program point L175(line 175) no Hoare annotation was computed. [2021-11-21 01:37:35,303 INFO L861 garLoopResultBuilder]: At program point L258(line 258) the Hoare annotation is: true [2021-11-21 01:37:35,303 INFO L858 garLoopResultBuilder]: For program point L258-1(line 258) no Hoare annotation was computed. [2021-11-21 01:37:35,303 INFO L858 garLoopResultBuilder]: For program point L258-2(line 258) no Hoare annotation was computed. [2021-11-21 01:37:35,303 INFO L858 garLoopResultBuilder]: For program point L192(line 192) no Hoare annotation was computed. [2021-11-21 01:37:35,303 INFO L854 garLoopResultBuilder]: At program point L258-4(line 258) the Hoare annotation is: (let ((.cse1 (fp.eq |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~x~0#1|))) (let ((.cse0 (not .cse1))) (and (or (and (= |ULTIMATE.start_main_#t~ret44#1| (_ bv1 32)) .cse0) (and (= |ULTIMATE.start_main_#t~ret44#1| (_ bv0 32)) .cse1)) (or (and (not |ULTIMATE.start_main_#t~short46#1|) .cse1) (and |ULTIMATE.start_main_#t~short46#1| .cse0))))) [2021-11-21 01:37:35,303 INFO L858 garLoopResultBuilder]: For program point L258-5(line 258) no Hoare annotation was computed. [2021-11-21 01:37:35,303 INFO L858 garLoopResultBuilder]: For program point L258-6(lines 258 267) no Hoare annotation was computed. [2021-11-21 01:37:35,304 INFO L858 garLoopResultBuilder]: For program point L258-8(lines 258 267) no Hoare annotation was computed. [2021-11-21 01:37:35,304 INFO L858 garLoopResultBuilder]: For program point L226-1(lines 226 230) no Hoare annotation was computed. [2021-11-21 01:37:35,304 INFO L854 garLoopResultBuilder]: At program point L226-2(lines 226 230) the Hoare annotation is: false [2021-11-21 01:37:35,305 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-21 01:37:35,305 INFO L858 garLoopResultBuilder]: For program point L177(line 177) no Hoare annotation was computed. [2021-11-21 01:37:35,305 INFO L854 garLoopResultBuilder]: At program point L144(lines 144 244) the Hoare annotation is: (let ((.cse0 (not (fp.eq |ULTIMATE.start___ieee754_atan2_#res#1| |ULTIMATE.start___ieee754_atan2_#res#1|)))) (or (and .cse0 (not (fp.eq |ULTIMATE.start___ieee754_atan2_~x#1| |ULTIMATE.start___ieee754_atan2_~x#1|))) (and (not (fp.eq |ULTIMATE.start___ieee754_atan2_~y#1| |ULTIMATE.start___ieee754_atan2_~y#1|)) .cse0))) [2021-11-21 01:37:35,305 INFO L858 garLoopResultBuilder]: For program point L194(line 194) no Hoare annotation was computed. [2021-11-21 01:37:35,305 INFO L858 garLoopResultBuilder]: For program point L212(line 212) no Hoare annotation was computed. [2021-11-21 01:37:35,305 INFO L858 garLoopResultBuilder]: For program point L212-2(line 212) no Hoare annotation was computed. [2021-11-21 01:37:35,306 INFO L858 garLoopResultBuilder]: For program point L163(lines 163 165) no Hoare annotation was computed. [2021-11-21 01:37:35,306 INFO L854 garLoopResultBuilder]: At program point L263(line 263) the Hoare annotation is: (let ((.cse0 (not (fp.eq |ULTIMATE.start_main_~res~0#1| |ULTIMATE.start_main_~res~0#1|))) (.cse1 (not (fp.eq |ULTIMATE.start___ieee754_atan2_#res#1| |ULTIMATE.start___ieee754_atan2_#res#1|)))) (or (and .cse0 (not (fp.eq |ULTIMATE.start___ieee754_atan2_~y#1| |ULTIMATE.start___ieee754_atan2_~y#1|)) .cse1) (and .cse0 .cse1 (not (fp.eq |ULTIMATE.start___ieee754_atan2_~x#1| |ULTIMATE.start___ieee754_atan2_~x#1|))))) [2021-11-21 01:37:35,306 INFO L858 garLoopResultBuilder]: For program point L263-1(lines 263 266) no Hoare annotation was computed. [2021-11-21 01:37:35,306 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-21 01:37:35,306 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 264) no Hoare annotation was computed. [2021-11-21 01:37:35,306 INFO L858 garLoopResultBuilder]: For program point L264(line 264) no Hoare annotation was computed. [2021-11-21 01:37:35,306 INFO L858 garLoopResultBuilder]: For program point L231(lines 231 236) no Hoare annotation was computed. [2021-11-21 01:37:35,306 INFO L858 garLoopResultBuilder]: For program point L198(lines 198 207) no Hoare annotation was computed. [2021-11-21 01:37:35,306 INFO L858 garLoopResultBuilder]: For program point L231-1(lines 224 237) no Hoare annotation was computed. [2021-11-21 01:37:35,306 INFO L858 garLoopResultBuilder]: For program point L231-2(lines 231 236) no Hoare annotation was computed. [2021-11-21 01:37:35,307 INFO L858 garLoopResultBuilder]: For program point L215(lines 215 220) no Hoare annotation was computed. [2021-11-21 01:37:35,307 INFO L858 garLoopResultBuilder]: For program point L149-1(lines 149 154) no Hoare annotation was computed. [2021-11-21 01:37:35,307 INFO L854 garLoopResultBuilder]: At program point L149-2(lines 149 154) the Hoare annotation is: (or (and (not (fp.eq |ULTIMATE.start___ieee754_atan2_~x#1| |ULTIMATE.start___ieee754_atan2_~x#1|)) (not (fp.eq |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~x~0#1|))) (not (fp.eq |ULTIMATE.start___ieee754_atan2_~y#1| |ULTIMATE.start___ieee754_atan2_~y#1|))) [2021-11-21 01:37:35,307 INFO L858 garLoopResultBuilder]: For program point L149-3(lines 149 154) no Hoare annotation was computed. [2021-11-21 01:37:35,307 INFO L858 garLoopResultBuilder]: For program point L199(line 199) no Hoare annotation was computed. [2021-11-21 01:37:35,307 INFO L858 garLoopResultBuilder]: For program point L166(lines 166 167) no Hoare annotation was computed. [2021-11-21 01:37:35,307 INFO L858 garLoopResultBuilder]: For program point L183(line 183) no Hoare annotation was computed. [2021-11-21 01:37:35,307 INFO L858 garLoopResultBuilder]: For program point L183-2(line 183) no Hoare annotation was computed. [2021-11-21 01:37:35,307 INFO L854 garLoopResultBuilder]: At program point L167(line 167) the Hoare annotation is: false [2021-11-21 01:37:35,307 INFO L858 garLoopResultBuilder]: For program point L167-1(line 167) no Hoare annotation was computed. [2021-11-21 01:37:35,310 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2021-11-21 01:37:35,311 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-21 01:37:35,330 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_22,QUANTIFIED] [2021-11-21 01:37:35,331 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_22,QUANTIFIED] [2021-11-21 01:37:35,332 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_22,QUANTIFIED] [2021-11-21 01:37:35,332 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_22,QUANTIFIED] [2021-11-21 01:37:35,332 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_22,QUANTIFIED] [2021-11-21 01:37:35,332 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_22,QUANTIFIED] [2021-11-21 01:37:35,333 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_22,QUANTIFIED] [2021-11-21 01:37:35,333 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_22,QUANTIFIED] [2021-11-21 01:37:35,341 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_22,QUANTIFIED] [2021-11-21 01:37:35,344 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_22,QUANTIFIED] [2021-11-21 01:37:35,344 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_22,QUANTIFIED] [2021-11-21 01:37:35,344 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_22,QUANTIFIED] [2021-11-21 01:37:35,345 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_22,QUANTIFIED] [2021-11-21 01:37:35,345 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_22,QUANTIFIED] [2021-11-21 01:37:35,345 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_22,QUANTIFIED] [2021-11-21 01:37:35,345 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_22,QUANTIFIED] [2021-11-21 01:37:35,351 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 01:37:35 BoogieIcfgContainer [2021-11-21 01:37:35,353 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-21 01:37:35,354 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-21 01:37:35,354 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-21 01:37:35,355 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-21 01:37:35,355 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:33:48" (3/4) ... [2021-11-21 01:37:35,359 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-21 01:37:35,364 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure fabs_double [2021-11-21 01:37:35,364 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_double [2021-11-21 01:37:35,364 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure atan_double [2021-11-21 01:37:35,376 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 31 nodes and edges [2021-11-21 01:37:35,377 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2021-11-21 01:37:35,378 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-11-21 01:37:35,379 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-21 01:37:35,409 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !~fp.eq~DOUBLE(y, y) || ((\exists v_skolemized_q#valueAsBitvector_22 : bv64 :: (~bvand32(2147483647bv32, v_skolemized_q#valueAsBitvector_22[63:32]) == ix && v_skolemized_q#valueAsBitvector_22[31:0] == lx) && !~fp.eq~DOUBLE(~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_22[63:63], v_skolemized_q#valueAsBitvector_22[62:52], v_skolemized_q#valueAsBitvector_22[51:0]), ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_22[63:63], v_skolemized_q#valueAsBitvector_22[62:52], v_skolemized_q#valueAsBitvector_22[51:0]))) && !~fp.eq~DOUBLE(x, x)) [2021-11-21 01:37:35,409 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!~fp.eq~DOUBLE(\result, \result) && !~fp.eq~DOUBLE(x, x)) || (!~fp.eq~DOUBLE(y, y) && !~fp.eq~DOUBLE(\result, \result)) [2021-11-21 01:37:35,464 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9c2bfd4-b22b-4167-bf3e-59e160b56b4c/bin/utaipan-TEXQjIfE4P/witness.graphml [2021-11-21 01:37:35,466 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-21 01:37:35,467 INFO L158 Benchmark]: Toolchain (without parser) took 249376.01ms. Allocated memory is still 69.2MB. Free memory was 48.4MB in the beginning and 27.1MB in the end (delta: 21.4MB). Peak memory consumption was 22.9MB. Max. memory is 16.1GB. [2021-11-21 01:37:35,467 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 69.2MB. Free memory is still 49.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 01:37:35,467 INFO L158 Benchmark]: CACSL2BoogieTranslator took 461.54ms. Allocated memory is still 69.2MB. Free memory was 48.2MB in the beginning and 49.4MB in the end (delta: -1.2MB). Peak memory consumption was 18.4MB. Max. memory is 16.1GB. [2021-11-21 01:37:35,468 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.08ms. Allocated memory is still 69.2MB. Free memory was 49.4MB in the beginning and 47.1MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-21 01:37:35,469 INFO L158 Benchmark]: Boogie Preprocessor took 90.19ms. Allocated memory is still 69.2MB. Free memory was 47.1MB in the beginning and 44.2MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-21 01:37:35,469 INFO L158 Benchmark]: RCFGBuilder took 21440.42ms. Allocated memory is still 69.2MB. Free memory was 44.2MB in the beginning and 37.3MB in the end (delta: 6.8MB). Peak memory consumption was 19.1MB. Max. memory is 16.1GB. [2021-11-21 01:37:35,470 INFO L158 Benchmark]: TraceAbstraction took 227192.28ms. Allocated memory is still 69.2MB. Free memory was 36.8MB in the beginning and 35.5MB in the end (delta: 1.3MB). Peak memory consumption was 39.8kB. Max. memory is 16.1GB. [2021-11-21 01:37:35,470 INFO L158 Benchmark]: Witness Printer took 111.78ms. Allocated memory is still 69.2MB. Free memory was 35.5MB in the beginning and 27.1MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-21 01:37:35,474 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 69.2MB. Free memory is still 49.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 461.54ms. Allocated memory is still 69.2MB. Free memory was 48.2MB in the beginning and 49.4MB in the end (delta: -1.2MB). Peak memory consumption was 18.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 72.08ms. Allocated memory is still 69.2MB. Free memory was 49.4MB in the beginning and 47.1MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 90.19ms. Allocated memory is still 69.2MB. Free memory was 47.1MB in the beginning and 44.2MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 21440.42ms. Allocated memory is still 69.2MB. Free memory was 44.2MB in the beginning and 37.3MB in the end (delta: 6.8MB). Peak memory consumption was 19.1MB. Max. memory is 16.1GB. * TraceAbstraction took 227192.28ms. Allocated memory is still 69.2MB. Free memory was 36.8MB in the beginning and 35.5MB in the end (delta: 1.3MB). Peak memory consumption was 39.8kB. Max. memory is 16.1GB. * Witness Printer took 111.78ms. Allocated memory is still 69.2MB. Free memory was 35.5MB in the beginning and 27.1MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_22,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_22,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_22,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_22,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_22,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_22,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_22,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_22,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_22,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_22,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_22,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_22,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_22,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_22,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_22,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_22,QUANTIFIED] * 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: 264]: 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 4 procedures, 103 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 227.1s, OverallIterations: 6, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 44.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.8s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 205 SdHoareTripleChecker+Valid, 25.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 195 mSDsluCounter, 5315 SdHoareTripleChecker+Invalid, 25.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 73 IncrementalHoareTripleChecker+Unchecked, 4547 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 379 IncrementalHoareTripleChecker+Invalid, 467 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 768 mSDtfsCounter, 379 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 427 GetRequests, 311 SyntacticMatches, 10 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 12 DeprecatedPredicates, 768 ImplicationChecksByTransitivity, 126.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=116occurred in iteration=4, InterpolantAutomatonStates: 47, 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, 6 MinimizatonAttempts, 97 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 18 LocationsWithAnnotation, 55 PreInvPairs, 64 NumberOfFragments, 141 HoareAnnotationTreeSize, 55 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 18 FomulaSimplificationsInter, 31 FormulaSimplificationTreeSizeReductionInter, 2.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 8.6s SatisfiabilityAnalysisTime, 168.6s InterpolantComputationTime, 212 NumberOfCodeBlocks, 212 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 408 ConstructedInterpolants, 60 QuantifiedInterpolants, 2494 SizeOfPredicates, 87 NumberOfNonLiveVariables, 1156 ConjunctsInSsa, 112 ConjunctsInUnsatCore, 16 InterpolantComputations, 7 PerfectInterpolantSequences, 61/84 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: 149]: Loop Invariant Derived loop invariant: (!~fp.eq~DOUBLE(x, x) && !~fp.eq~DOUBLE(x, x)) || !~fp.eq~DOUBLE(y, y) - InvariantResult [Line: 78]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 249]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 156]: Loop Invariant [2021-11-21 01:37:35,505 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_22,QUANTIFIED] [2021-11-21 01:37:35,505 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_22,QUANTIFIED] [2021-11-21 01:37:35,506 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_22,QUANTIFIED] [2021-11-21 01:37:35,506 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_22,QUANTIFIED] [2021-11-21 01:37:35,506 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_22,QUANTIFIED] [2021-11-21 01:37:35,506 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_22,QUANTIFIED] [2021-11-21 01:37:35,506 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_22,QUANTIFIED] [2021-11-21 01:37:35,506 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_22,QUANTIFIED] [2021-11-21 01:37:35,507 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_22,QUANTIFIED] [2021-11-21 01:37:35,507 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_22,QUANTIFIED] [2021-11-21 01:37:35,508 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_22,QUANTIFIED] [2021-11-21 01:37:35,508 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_22,QUANTIFIED] [2021-11-21 01:37:35,508 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_22,QUANTIFIED] [2021-11-21 01:37:35,508 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_22,QUANTIFIED] [2021-11-21 01:37:35,508 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_22,QUANTIFIED] [2021-11-21 01:37:35,509 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_22,QUANTIFIED] Derived loop invariant: !~fp.eq~DOUBLE(y, y) || ((\exists v_skolemized_q#valueAsBitvector_22 : bv64 :: (~bvand32(2147483647bv32, v_skolemized_q#valueAsBitvector_22[63:32]) == ix && v_skolemized_q#valueAsBitvector_22[31:0] == lx) && !~fp.eq~DOUBLE(~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_22[63:63], v_skolemized_q#valueAsBitvector_22[62:52], v_skolemized_q#valueAsBitvector_22[51:0]), ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_22[63:63], v_skolemized_q#valueAsBitvector_22[62:52], v_skolemized_q#valueAsBitvector_22[51:0]))) && !~fp.eq~DOUBLE(x, x)) - InvariantResult [Line: 226]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 70]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 144]: Loop Invariant Derived loop invariant: (!~fp.eq~DOUBLE(\result, \result) && !~fp.eq~DOUBLE(x, x)) || (!~fp.eq~DOUBLE(y, y) && !~fp.eq~DOUBLE(\result, \result)) - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-11-21 01:37:35,719 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9c2bfd4-b22b-4167-bf3e-59e160b56b4c/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2021-11-21 01:37:35,786 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c9c2bfd4-b22b-4167-bf3e-59e160b56b4c/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE