./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0920a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be2ad308-45f5-4d2a-a13d-68884f4ffc2b/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be2ad308-45f5-4d2a-a13d-68884f4ffc2b/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be2ad308-45f5-4d2a-a13d-68884f4ffc2b/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be2ad308-45f5-4d2a-a13d-68884f4ffc2b/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0920a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be2ad308-45f5-4d2a-a13d-68884f4ffc2b/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be2ad308-45f5-4d2a-a13d-68884f4ffc2b/bin/utaipan-eEHZpOm5b7 --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 d4bd0cf85a8b4097fbfac5e1603bb0ef2263d21f1b9906b4152c353aa17e726a --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 18:25:14,950 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 18:25:14,953 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 18:25:15,008 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 18:25:15,009 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 18:25:15,013 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 18:25:15,015 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 18:25:15,019 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 18:25:15,022 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 18:25:15,027 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 18:25:15,029 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 18:25:15,030 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 18:25:15,031 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 18:25:15,033 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 18:25:15,036 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 18:25:15,040 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 18:25:15,042 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 18:25:15,043 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 18:25:15,045 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 18:25:15,054 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 18:25:15,056 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 18:25:15,063 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 18:25:15,066 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 18:25:15,067 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 18:25:15,076 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 18:25:15,077 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 18:25:15,077 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 18:25:15,079 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 18:25:15,080 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 18:25:15,081 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 18:25:15,082 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 18:25:15,083 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 18:25:15,085 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 18:25:15,086 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 18:25:15,087 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 18:25:15,088 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 18:25:15,088 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 18:25:15,089 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 18:25:15,089 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 18:25:15,090 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 18:25:15,090 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 18:25:15,091 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be2ad308-45f5-4d2a-a13d-68884f4ffc2b/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-25 18:25:15,134 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 18:25:15,134 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 18:25:15,135 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 18:25:15,135 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 18:25:15,136 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 18:25:15,136 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 18:25:15,136 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 18:25:15,136 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 18:25:15,137 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 18:25:15,137 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-25 18:25:15,138 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 18:25:15,138 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 18:25:15,138 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-25 18:25:15,139 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-25 18:25:15,139 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 18:25:15,139 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-25 18:25:15,139 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-25 18:25:15,139 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-25 18:25:15,140 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 18:25:15,140 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-25 18:25:15,141 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-25 18:25:15,141 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-25 18:25:15,141 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 18:25:15,141 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 18:25:15,142 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 18:25:15,142 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 18:25:15,143 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-25 18:25:15,144 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 18:25:15,144 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 18:25:15,144 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 18:25:15,144 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 18:25:15,145 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 18:25:15,145 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 18:25:15,145 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 18:25:15,145 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 18:25:15,145 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 18:25:15,146 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-25 18:25:15,146 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-25 18:25:15,146 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 18:25:15,147 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 18:25:15,147 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 18:25:15,147 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_be2ad308-45f5-4d2a-a13d-68884f4ffc2b/bin/utaipan-eEHZpOm5b7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be2ad308-45f5-4d2a-a13d-68884f4ffc2b/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d4bd0cf85a8b4097fbfac5e1603bb0ef2263d21f1b9906b4152c353aa17e726a [2021-11-25 18:25:15,423 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 18:25:15,457 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 18:25:15,459 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 18:25:15,460 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 18:25:15,461 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 18:25:15,463 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be2ad308-45f5-4d2a-a13d-68884f4ffc2b/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/float-newlib/float_req_bl_0920a.c [2021-11-25 18:25:15,564 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be2ad308-45f5-4d2a-a13d-68884f4ffc2b/bin/utaipan-eEHZpOm5b7/data/f644ee492/bb71e3d4c4364ac18796fc5d25a4327f/FLAG076047d3f [2021-11-25 18:25:16,146 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 18:25:16,147 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be2ad308-45f5-4d2a-a13d-68884f4ffc2b/sv-benchmarks/c/float-newlib/float_req_bl_0920a.c [2021-11-25 18:25:16,158 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be2ad308-45f5-4d2a-a13d-68884f4ffc2b/bin/utaipan-eEHZpOm5b7/data/f644ee492/bb71e3d4c4364ac18796fc5d25a4327f/FLAG076047d3f [2021-11-25 18:25:16,531 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be2ad308-45f5-4d2a-a13d-68884f4ffc2b/bin/utaipan-eEHZpOm5b7/data/f644ee492/bb71e3d4c4364ac18796fc5d25a4327f [2021-11-25 18:25:16,534 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 18:25:16,535 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 18:25:16,537 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 18:25:16,538 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 18:25:16,542 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 18:25:16,543 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:25:16" (1/1) ... [2021-11-25 18:25:16,544 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68a2a70f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:25:16, skipping insertion in model container [2021-11-25 18:25:16,544 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:25:16" (1/1) ... [2021-11-25 18:25:16,552 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 18:25:16,574 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 18:25:16,802 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_be2ad308-45f5-4d2a-a13d-68884f4ffc2b/sv-benchmarks/c/float-newlib/float_req_bl_0920a.c[3541,3554] [2021-11-25 18:25:16,805 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 18:25:16,813 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 18:25:16,871 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_be2ad308-45f5-4d2a-a13d-68884f4ffc2b/sv-benchmarks/c/float-newlib/float_req_bl_0920a.c[3541,3554] [2021-11-25 18:25:16,872 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 18:25:16,898 INFO L208 MainTranslator]: Completed translation [2021-11-25 18:25:16,899 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:25:16 WrapperNode [2021-11-25 18:25:16,899 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 18:25:16,900 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 18:25:16,900 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 18:25:16,900 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 18:25:16,908 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:25:16" (1/1) ... [2021-11-25 18:25:16,922 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:25:16" (1/1) ... [2021-11-25 18:25:16,949 INFO L137 Inliner]: procedures = 19, calls = 30, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 167 [2021-11-25 18:25:16,952 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 18:25:16,953 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 18:25:16,953 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 18:25:16,955 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 18:25:16,963 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:25:16" (1/1) ... [2021-11-25 18:25:16,963 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:25:16" (1/1) ... [2021-11-25 18:25:16,969 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:25:16" (1/1) ... [2021-11-25 18:25:16,971 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:25:16" (1/1) ... [2021-11-25 18:25:16,980 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:25:16" (1/1) ... [2021-11-25 18:25:17,001 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:25:16" (1/1) ... [2021-11-25 18:25:17,003 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:25:16" (1/1) ... [2021-11-25 18:25:17,015 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 18:25:17,016 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 18:25:17,016 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 18:25:17,016 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 18:25:17,017 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:25:16" (1/1) ... [2021-11-25 18:25:17,025 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 18:25:17,038 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be2ad308-45f5-4d2a-a13d-68884f4ffc2b/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:25:17,058 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be2ad308-45f5-4d2a-a13d-68884f4ffc2b/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 18:25:17,077 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be2ad308-45f5-4d2a-a13d-68884f4ffc2b/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 18:25:17,109 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 18:25:17,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-25 18:25:17,110 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 18:25:17,110 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-11-25 18:25:17,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-25 18:25:17,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-11-25 18:25:17,110 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 18:25:17,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 18:25:17,111 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-25 18:25:17,111 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 18:25:17,227 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 18:25:17,229 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 18:25:17,514 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 18:25:17,603 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 18:25:17,603 INFO L301 CfgBuilder]: Removed 8 assume(true) statements. [2021-11-25 18:25:17,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:25:17 BoogieIcfgContainer [2021-11-25 18:25:17,606 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 18:25:17,608 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 18:25:17,608 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 18:25:17,611 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 18:25:17,612 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 06:25:16" (1/3) ... [2021-11-25 18:25:17,612 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@391d41ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:25:17, skipping insertion in model container [2021-11-25 18:25:17,613 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:25:16" (2/3) ... [2021-11-25 18:25:17,613 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@391d41ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:25:17, skipping insertion in model container [2021-11-25 18:25:17,613 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:25:17" (3/3) ... [2021-11-25 18:25:17,615 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0920a.c [2021-11-25 18:25:17,620 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 18:25:17,620 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-25 18:25:17,669 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 18:25:17,676 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 [2021-11-25 18:25:17,677 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-25 18:25:17,692 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 24 states have (on average 1.6666666666666667) internal successors, (40), 25 states have internal predecessors, (40), 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) [2021-11-25 18:25:17,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-25 18:25:17,698 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:25:17,699 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:25:17,700 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:25:17,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:25:17,706 INFO L85 PathProgramCache]: Analyzing trace with hash -1067910090, now seen corresponding path program 1 times [2021-11-25 18:25:17,718 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:25:17,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684310915] [2021-11-25 18:25:17,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:25:17,720 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:25:17,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:25:17,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:25:17,917 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-25 18:25:17,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684310915] [2021-11-25 18:25:17,918 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684310915] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:25:17,919 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:25:17,919 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 18:25:17,921 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454866963] [2021-11-25 18:25:17,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:25:17,928 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:25:17,929 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-25 18:25:17,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:25:17,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:25:17,970 INFO L87 Difference]: Start difference. First operand has 26 states, 24 states have (on average 1.6666666666666667) internal successors, (40), 25 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:25:18,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:25:18,058 INFO L93 Difference]: Finished difference Result 51 states and 79 transitions. [2021-11-25 18:25:18,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:25:18,062 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-11-25 18:25:18,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:25:18,086 INFO L225 Difference]: With dead ends: 51 [2021-11-25 18:25:18,087 INFO L226 Difference]: Without dead ends: 23 [2021-11-25 18:25:18,093 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:25:18,107 INFO L933 BasicCegarLoop]: 25 mSDtfsCounter, 0 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-25 18:25:18,108 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 47 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-25 18:25:18,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2021-11-25 18:25:18,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2021-11-25 18:25:18,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.1818181818181819) internal successors, (26), 22 states have internal predecessors, (26), 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) [2021-11-25 18:25:18,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2021-11-25 18:25:18,153 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 9 [2021-11-25 18:25:18,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:25:18,153 INFO L470 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2021-11-25 18:25:18,154 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:25:18,156 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2021-11-25 18:25:18,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-25 18:25:18,157 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:25:18,158 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:25:18,158 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-25 18:25:18,159 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:25:18,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:25:18,164 INFO L85 PathProgramCache]: Analyzing trace with hash -1634543075, now seen corresponding path program 1 times [2021-11-25 18:25:18,165 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-25 18:25:18,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335328910] [2021-11-25 18:25:18,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:25:18,166 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-25 18:25:18,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-25 18:25:18,322 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-25 18:25:18,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-25 18:25:18,444 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-25 18:25:18,444 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-25 18:25:18,445 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-25 18:25:18,447 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-25 18:25:18,450 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-25 18:25:18,452 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-25 18:25:18,482 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 06:25:18 BoogieIcfgContainer [2021-11-25 18:25:18,482 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-25 18:25:18,483 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-25 18:25:18,483 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-25 18:25:18,483 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-25 18:25:18,484 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:25:17" (3/4) ... [2021-11-25 18:25:18,487 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-25 18:25:18,487 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-25 18:25:18,488 INFO L158 Benchmark]: Toolchain (without parser) took 1951.98ms. Allocated memory is still 113.2MB. Free memory was 80.9MB in the beginning and 76.2MB in the end (delta: 4.7MB). Peak memory consumption was 2.3MB. Max. memory is 16.1GB. [2021-11-25 18:25:18,488 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 73.4MB. Free memory is still 34.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-25 18:25:18,489 INFO L158 Benchmark]: CACSL2BoogieTranslator took 361.98ms. Allocated memory is still 113.2MB. Free memory was 80.6MB in the beginning and 86.9MB in the end (delta: -6.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-25 18:25:18,489 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.37ms. Allocated memory is still 113.2MB. Free memory was 86.9MB in the beginning and 84.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-25 18:25:18,490 INFO L158 Benchmark]: Boogie Preprocessor took 61.70ms. Allocated memory is still 113.2MB. Free memory was 84.8MB in the beginning and 83.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-25 18:25:18,491 INFO L158 Benchmark]: RCFGBuilder took 590.31ms. Allocated memory is still 113.2MB. Free memory was 83.0MB in the beginning and 67.6MB in the end (delta: 15.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-11-25 18:25:18,491 INFO L158 Benchmark]: TraceAbstraction took 874.48ms. Allocated memory is still 113.2MB. Free memory was 66.7MB in the beginning and 76.8MB in the end (delta: -10.0MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-25 18:25:18,492 INFO L158 Benchmark]: Witness Printer took 3.91ms. Allocated memory is still 113.2MB. Free memory was 76.8MB in the beginning and 76.2MB in the end (delta: 566.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-25 18:25:18,495 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 73.4MB. Free memory is still 34.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 361.98ms. Allocated memory is still 113.2MB. Free memory was 80.6MB in the beginning and 86.9MB in the end (delta: -6.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.37ms. Allocated memory is still 113.2MB. Free memory was 86.9MB in the beginning and 84.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 61.70ms. Allocated memory is still 113.2MB. Free memory was 84.8MB in the beginning and 83.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 590.31ms. Allocated memory is still 113.2MB. Free memory was 83.0MB in the beginning and 67.6MB in the end (delta: 15.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 874.48ms. Allocated memory is still 113.2MB. Free memory was 66.7MB in the beginning and 76.8MB in the end (delta: -10.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.91ms. Allocated memory is still 113.2MB. Free memory was 76.8MB in the beginning and 76.2MB in the end (delta: 566.2kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 142]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 113, overapproximation of bitwiseAnd at line 45, overapproximation of someBinaryArithmeticFLOAToperation at line 46. Possible FailurePath: [L26-L30] static const float ln2_hi_log = 6.9313812256e-01, ln2_lo_log = 9.0580006145e-06, two25_log = 3.355443200e+07, Lg1_log = 6.6666668653e-01, Lg2_log = 4.0000000596e-01, Lg3_log = 2.8571429849e-01, Lg4_log = 2.2222198546e-01, Lg5_log = 1.8183572590e-01, Lg6_log = 1.5313838422e-01, Lg7_log = 1.4798198640e-01; [L32] static const float zero_log = 0.0; [L134] float x = __VERIFIER_nondet_float(); [L136] EXPR x < 0 && isfinite_float(x) [L136] CALL, EXPR isfinite_float(x) [L117] __int32_t ix; VAL [\old(x)=4294967296, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=4294967296, zero_log=0] [L119] ieee_float_shape_type gf_u; [L120] gf_u.value = (x) [L121] EXPR gf_u.word [L121] (ix) = gf_u.word [L123] ix &= 0x7fffffff [L124] return (((ix) < 0x7f800000L)); [L136] RET, EXPR isfinite_float(x) [L136] EXPR x < 0 && isfinite_float(x) VAL [isfinite_float(x)=1, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=4294967296, x < 0 && isfinite_float(x)=1, zero_log=0] [L136] COND TRUE (x < 0 && isfinite_float(x)) [L138] CALL, EXPR __ieee754_logf(x) [L35] float hfsq, f, s, z, R, w, t1, t2, dk; [L36] __int32_t k, ix, i, j; VAL [\old(x)=4294967296, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=4294967296, zero_log=0] [L39] ieee_float_shape_type gf_u; [L40] gf_u.value = (x) [L41] EXPR gf_u.word [L41] (ix) = gf_u.word [L44] k = 0 VAL [\old(x)=4294967296, ix=-1, k=0, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=4294967296, zero_log=0] [L45] COND TRUE ((ix & 0x7fffffff) == 0) [L46] return -two25_log / zero_log; VAL [\old(x)=4294967296, ix=-1, k=0, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=4294967296, zero_log=0] [L138] RET, EXPR __ieee754_logf(x) [L138] float res = __ieee754_logf(x); [L141] CALL, EXPR isnan_float(res) [L113] return x != x; [L141] RET, EXPR isnan_float(res) [L141] COND TRUE !isnan_float(res) [L142] reach_error() VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, res=4294967297, two25_log=33554432, x=4294967296, zero_log=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 26 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 47 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 25 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 14 IncrementalHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 25 mSDtfsCounter, 14 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=0, InterpolantAutomatonStates: 3, 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, 0.2s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-25 18:25:18,547 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be2ad308-45f5-4d2a-a13d-68884f4ffc2b/bin/utaipan-eEHZpOm5b7/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_be2ad308-45f5-4d2a-a13d-68884f4ffc2b/bin/utaipan-eEHZpOm5b7/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be2ad308-45f5-4d2a-a13d-68884f4ffc2b/bin/utaipan-eEHZpOm5b7/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be2ad308-45f5-4d2a-a13d-68884f4ffc2b/bin/utaipan-eEHZpOm5b7/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be2ad308-45f5-4d2a-a13d-68884f4ffc2b/bin/utaipan-eEHZpOm5b7/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0920a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be2ad308-45f5-4d2a-a13d-68884f4ffc2b/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be2ad308-45f5-4d2a-a13d-68884f4ffc2b/bin/utaipan-eEHZpOm5b7 --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 d4bd0cf85a8b4097fbfac5e1603bb0ef2263d21f1b9906b4152c353aa17e726a --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-11-25 18:25:21,038 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-25 18:25:21,041 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-25 18:25:21,084 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-25 18:25:21,085 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-25 18:25:21,091 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-25 18:25:21,095 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-25 18:25:21,104 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-25 18:25:21,107 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-25 18:25:21,108 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-25 18:25:21,111 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-25 18:25:21,113 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-25 18:25:21,114 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-25 18:25:21,121 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-25 18:25:21,123 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-25 18:25:21,126 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-25 18:25:21,128 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-25 18:25:21,131 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-25 18:25:21,138 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-25 18:25:21,149 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-25 18:25:21,151 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-25 18:25:21,154 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-25 18:25:21,156 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-25 18:25:21,159 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-25 18:25:21,166 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-25 18:25:21,167 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-25 18:25:21,167 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-25 18:25:21,169 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-25 18:25:21,170 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-25 18:25:21,171 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-25 18:25:21,172 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-25 18:25:21,173 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-25 18:25:21,175 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-25 18:25:21,176 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-25 18:25:21,177 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-25 18:25:21,178 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-25 18:25:21,178 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-25 18:25:21,179 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-25 18:25:21,179 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-25 18:25:21,181 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-25 18:25:21,181 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-25 18:25:21,182 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be2ad308-45f5-4d2a-a13d-68884f4ffc2b/bin/utaipan-eEHZpOm5b7/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-25 18:25:21,232 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-25 18:25:21,232 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-25 18:25:21,233 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-25 18:25:21,233 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-25 18:25:21,234 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-25 18:25:21,234 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-25 18:25:21,235 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-25 18:25:21,235 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-25 18:25:21,235 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-25 18:25:21,235 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-25 18:25:21,236 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-25 18:25:21,237 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-25 18:25:21,238 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-25 18:25:21,238 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-25 18:25:21,239 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-25 18:25:21,239 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-25 18:25:21,239 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-25 18:25:21,239 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-25 18:25:21,239 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-25 18:25:21,240 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-25 18:25:21,240 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-25 18:25:21,240 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-25 18:25:21,240 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-25 18:25:21,241 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-25 18:25:21,241 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-25 18:25:21,241 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-25 18:25:21,241 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-25 18:25:21,241 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-25 18:25:21,242 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-25 18:25:21,242 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 18:25:21,242 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-25 18:25:21,242 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-25 18:25:21,243 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-25 18:25:21,243 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-25 18:25:21,243 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-25 18:25:21,244 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-25 18:25:21,244 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-25 18:25:21,244 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-25 18:25:21,244 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_be2ad308-45f5-4d2a-a13d-68884f4ffc2b/bin/utaipan-eEHZpOm5b7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be2ad308-45f5-4d2a-a13d-68884f4ffc2b/bin/utaipan-eEHZpOm5b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d4bd0cf85a8b4097fbfac5e1603bb0ef2263d21f1b9906b4152c353aa17e726a [2021-11-25 18:25:21,659 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-25 18:25:21,689 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-25 18:25:21,692 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-25 18:25:21,693 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-25 18:25:21,695 INFO L275 PluginConnector]: CDTParser initialized [2021-11-25 18:25:21,696 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be2ad308-45f5-4d2a-a13d-68884f4ffc2b/bin/utaipan-eEHZpOm5b7/../../sv-benchmarks/c/float-newlib/float_req_bl_0920a.c [2021-11-25 18:25:21,772 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be2ad308-45f5-4d2a-a13d-68884f4ffc2b/bin/utaipan-eEHZpOm5b7/data/686f94739/d4041aa7021244f5ae26fa46c856bebf/FLAGa33fcbf3a [2021-11-25 18:25:22,263 INFO L306 CDTParser]: Found 1 translation units. [2021-11-25 18:25:22,264 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be2ad308-45f5-4d2a-a13d-68884f4ffc2b/sv-benchmarks/c/float-newlib/float_req_bl_0920a.c [2021-11-25 18:25:22,282 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be2ad308-45f5-4d2a-a13d-68884f4ffc2b/bin/utaipan-eEHZpOm5b7/data/686f94739/d4041aa7021244f5ae26fa46c856bebf/FLAGa33fcbf3a [2021-11-25 18:25:22,636 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be2ad308-45f5-4d2a-a13d-68884f4ffc2b/bin/utaipan-eEHZpOm5b7/data/686f94739/d4041aa7021244f5ae26fa46c856bebf [2021-11-25 18:25:22,638 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-25 18:25:22,639 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-25 18:25:22,642 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-25 18:25:22,642 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-25 18:25:22,646 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-25 18:25:22,647 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:25:22" (1/1) ... [2021-11-25 18:25:22,649 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fab766a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:25:22, skipping insertion in model container [2021-11-25 18:25:22,649 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 06:25:22" (1/1) ... [2021-11-25 18:25:22,658 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-25 18:25:22,706 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-25 18:25:23,034 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_be2ad308-45f5-4d2a-a13d-68884f4ffc2b/sv-benchmarks/c/float-newlib/float_req_bl_0920a.c[3541,3554] [2021-11-25 18:25:23,041 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 18:25:23,059 INFO L203 MainTranslator]: Completed pre-run [2021-11-25 18:25:23,170 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_be2ad308-45f5-4d2a-a13d-68884f4ffc2b/sv-benchmarks/c/float-newlib/float_req_bl_0920a.c[3541,3554] [2021-11-25 18:25:23,171 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-25 18:25:23,203 INFO L208 MainTranslator]: Completed translation [2021-11-25 18:25:23,203 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:25:23 WrapperNode [2021-11-25 18:25:23,204 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-25 18:25:23,205 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-25 18:25:23,205 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-25 18:25:23,205 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-25 18:25:23,213 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:25:23" (1/1) ... [2021-11-25 18:25:23,242 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:25:23" (1/1) ... [2021-11-25 18:25:23,288 INFO L137 Inliner]: procedures = 22, calls = 30, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 166 [2021-11-25 18:25:23,288 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-25 18:25:23,289 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-25 18:25:23,289 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-25 18:25:23,289 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-25 18:25:23,301 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:25:23" (1/1) ... [2021-11-25 18:25:23,302 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:25:23" (1/1) ... [2021-11-25 18:25:23,328 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:25:23" (1/1) ... [2021-11-25 18:25:23,328 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:25:23" (1/1) ... [2021-11-25 18:25:23,339 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:25:23" (1/1) ... [2021-11-25 18:25:23,356 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:25:23" (1/1) ... [2021-11-25 18:25:23,359 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:25:23" (1/1) ... [2021-11-25 18:25:23,363 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-25 18:25:23,364 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-25 18:25:23,364 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-25 18:25:23,364 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-25 18:25:23,365 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:25:23" (1/1) ... [2021-11-25 18:25:23,388 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-25 18:25:23,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be2ad308-45f5-4d2a-a13d-68884f4ffc2b/bin/utaipan-eEHZpOm5b7/z3 [2021-11-25 18:25:23,422 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be2ad308-45f5-4d2a-a13d-68884f4ffc2b/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-25 18:25:23,441 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be2ad308-45f5-4d2a-a13d-68884f4ffc2b/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-25 18:25:23,483 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-25 18:25:23,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-25 18:25:23,483 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-25 18:25:23,483 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-11-25 18:25:23,484 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-25 18:25:23,484 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-25 18:25:23,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-25 18:25:23,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-11-25 18:25:23,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-25 18:25:23,485 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-25 18:25:23,583 INFO L236 CfgBuilder]: Building ICFG [2021-11-25 18:25:23,584 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-25 18:25:40,941 INFO L277 CfgBuilder]: Performing block encoding [2021-11-25 18:25:40,947 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-25 18:25:40,947 INFO L301 CfgBuilder]: Removed 8 assume(true) statements. [2021-11-25 18:25:40,950 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:25:40 BoogieIcfgContainer [2021-11-25 18:25:40,950 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-25 18:25:40,952 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-25 18:25:40,952 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-25 18:25:40,964 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-25 18:25:40,965 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 06:25:22" (1/3) ... [2021-11-25 18:25:40,965 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ee653b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:25:40, skipping insertion in model container [2021-11-25 18:25:40,966 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 06:25:23" (2/3) ... [2021-11-25 18:25:40,966 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ee653b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 06:25:40, skipping insertion in model container [2021-11-25 18:25:40,966 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:25:40" (3/3) ... [2021-11-25 18:25:40,967 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0920a.c [2021-11-25 18:25:40,972 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-25 18:25:40,989 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-25 18:25:41,036 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-25 18:25:41,043 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 [2021-11-25 18:25:41,044 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-25 18:25:41,058 INFO L276 IsEmpty]: Start isEmpty. Operand has 37 states, 35 states have (on average 1.6571428571428573) internal successors, (58), 36 states have internal predecessors, (58), 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) [2021-11-25 18:25:41,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-25 18:25:41,064 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:25:41,065 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:25:41,065 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:25:41,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:25:41,071 INFO L85 PathProgramCache]: Analyzing trace with hash 627170052, now seen corresponding path program 1 times [2021-11-25 18:25:41,083 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 18:25:41,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1952874420] [2021-11-25 18:25:41,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:25:41,085 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 18:25:41,086 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be2ad308-45f5-4d2a-a13d-68884f4ffc2b/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 18:25:41,091 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be2ad308-45f5-4d2a-a13d-68884f4ffc2b/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 18:25:41,097 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be2ad308-45f5-4d2a-a13d-68884f4ffc2b/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-25 18:25:41,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:25:41,778 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-25 18:25:41,782 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:25:41,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:25:41,873 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 18:25:41,874 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-25 18:25:41,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1952874420] [2021-11-25 18:25:41,875 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1952874420] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:25:41,875 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:25:41,876 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-25 18:25:41,878 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684813520] [2021-11-25 18:25:41,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:25:41,883 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-25 18:25:41,883 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-25 18:25:41,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-25 18:25:41,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-25 18:25:41,916 INFO L87 Difference]: Start difference. First operand has 37 states, 35 states have (on average 1.6571428571428573) internal successors, (58), 36 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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) [2021-11-25 18:25:41,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:25:41,935 INFO L93 Difference]: Finished difference Result 71 states and 112 transitions. [2021-11-25 18:25:41,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-25 18:25:41,937 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-25 18:25:41,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:25:41,946 INFO L225 Difference]: With dead ends: 71 [2021-11-25 18:25:41,946 INFO L226 Difference]: Without dead ends: 33 [2021-11-25 18:25:41,949 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-25 18:25:41,954 INFO L933 BasicCegarLoop]: 49 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, 49 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 [2021-11-25 18:25:41,955 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 18:25:41,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2021-11-25 18:25:41,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2021-11-25 18:25:41,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 32 states have (on average 1.375) internal successors, (44), 32 states have internal predecessors, (44), 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) [2021-11-25 18:25:41,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 44 transitions. [2021-11-25 18:25:41,990 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 44 transitions. Word has length 11 [2021-11-25 18:25:41,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:25:41,991 INFO L470 AbstractCegarLoop]: Abstraction has 33 states and 44 transitions. [2021-11-25 18:25:41,991 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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) [2021-11-25 18:25:41,991 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 44 transitions. [2021-11-25 18:25:41,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-25 18:25:41,992 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:25:41,992 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:25:42,015 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be2ad308-45f5-4d2a-a13d-68884f4ffc2b/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-25 18:25:42,214 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be2ad308-45f5-4d2a-a13d-68884f4ffc2b/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 [2021-11-25 18:25:42,214 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:25:42,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:25:42,215 INFO L85 PathProgramCache]: Analyzing trace with hash -1650641455, now seen corresponding path program 1 times [2021-11-25 18:25:42,217 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 18:25:42,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1244462250] [2021-11-25 18:25:42,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:25:42,217 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 18:25:42,218 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be2ad308-45f5-4d2a-a13d-68884f4ffc2b/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 18:25:42,219 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be2ad308-45f5-4d2a-a13d-68884f4ffc2b/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 18:25:42,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be2ad308-45f5-4d2a-a13d-68884f4ffc2b/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-25 18:25:42,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:25:42,764 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-25 18:25:42,765 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:25:42,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:25:42,892 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 18:25:42,892 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-25 18:25:42,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1244462250] [2021-11-25 18:25:42,892 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1244462250] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:25:42,893 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:25:42,893 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-25 18:25:42,893 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98321828] [2021-11-25 18:25:42,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:25:42,895 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-25 18:25:42,895 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-25 18:25:42,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-25 18:25:42,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:25:42,897 INFO L87 Difference]: Start difference. First operand 33 states and 44 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2021-11-25 18:25:42,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:25:42,945 INFO L93 Difference]: Finished difference Result 59 states and 80 transitions. [2021-11-25 18:25:42,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-25 18:25:42,946 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-11-25 18:25:42,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:25:42,947 INFO L225 Difference]: With dead ends: 59 [2021-11-25 18:25:42,947 INFO L226 Difference]: Without dead ends: 33 [2021-11-25 18:25:42,948 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-25 18:25:42,950 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 0 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 18:25:42,951 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 83 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-25 18:25:42,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2021-11-25 18:25:42,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2021-11-25 18:25:42,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 32 states have (on average 1.34375) internal successors, (43), 32 states have internal predecessors, (43), 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) [2021-11-25 18:25:42,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 43 transitions. [2021-11-25 18:25:42,959 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 43 transitions. Word has length 12 [2021-11-25 18:25:42,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:25:42,959 INFO L470 AbstractCegarLoop]: Abstraction has 33 states and 43 transitions. [2021-11-25 18:25:42,960 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2021-11-25 18:25:42,960 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 43 transitions. [2021-11-25 18:25:42,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-25 18:25:42,961 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:25:42,961 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:25:42,983 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be2ad308-45f5-4d2a-a13d-68884f4ffc2b/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-11-25 18:25:43,172 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be2ad308-45f5-4d2a-a13d-68884f4ffc2b/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 [2021-11-25 18:25:43,173 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:25:43,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:25:43,174 INFO L85 PathProgramCache]: Analyzing trace with hash 1227406364, now seen corresponding path program 1 times [2021-11-25 18:25:43,174 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 18:25:43,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1065907034] [2021-11-25 18:25:43,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:25:43,175 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 18:25:43,175 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be2ad308-45f5-4d2a-a13d-68884f4ffc2b/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 18:25:43,176 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be2ad308-45f5-4d2a-a13d-68884f4ffc2b/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 18:25:43,183 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be2ad308-45f5-4d2a-a13d-68884f4ffc2b/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-25 18:25:43,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:25:43,706 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-25 18:25:43,709 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:25:44,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:25:44,384 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 18:25:44,385 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-25 18:25:44,385 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1065907034] [2021-11-25 18:25:44,385 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1065907034] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:25:44,386 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:25:44,386 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-25 18:25:44,386 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768015831] [2021-11-25 18:25:44,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:25:44,387 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-25 18:25:44,387 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-25 18:25:44,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-25 18:25:44,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-25 18:25:44,388 INFO L87 Difference]: Start difference. First operand 33 states and 43 transitions. Second operand has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 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) [2021-11-25 18:25:44,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:25:44,400 INFO L93 Difference]: Finished difference Result 38 states and 47 transitions. [2021-11-25 18:25:44,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 18:25:44,401 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-11-25 18:25:44,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:25:44,403 INFO L225 Difference]: With dead ends: 38 [2021-11-25 18:25:44,403 INFO L226 Difference]: Without dead ends: 33 [2021-11-25 18:25:44,404 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-25 18:25:44,405 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 0 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 23 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 18:25:44,406 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 164 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 23 Unchecked, 0.0s Time] [2021-11-25 18:25:44,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2021-11-25 18:25:44,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2021-11-25 18:25:44,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 32 states have (on average 1.3125) internal successors, (42), 32 states have internal predecessors, (42), 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) [2021-11-25 18:25:44,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 42 transitions. [2021-11-25 18:25:44,414 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 42 transitions. Word has length 16 [2021-11-25 18:25:44,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:25:44,414 INFO L470 AbstractCegarLoop]: Abstraction has 33 states and 42 transitions. [2021-11-25 18:25:44,415 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 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) [2021-11-25 18:25:44,415 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 42 transitions. [2021-11-25 18:25:44,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-25 18:25:44,416 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:25:44,416 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:25:44,449 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be2ad308-45f5-4d2a-a13d-68884f4ffc2b/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-25 18:25:44,632 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be2ad308-45f5-4d2a-a13d-68884f4ffc2b/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 [2021-11-25 18:25:44,633 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:25:44,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:25:44,634 INFO L85 PathProgramCache]: Analyzing trace with hash -618100041, now seen corresponding path program 1 times [2021-11-25 18:25:44,634 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 18:25:44,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [202500952] [2021-11-25 18:25:44,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:25:44,635 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 18:25:44,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be2ad308-45f5-4d2a-a13d-68884f4ffc2b/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 18:25:44,636 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be2ad308-45f5-4d2a-a13d-68884f4ffc2b/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 18:25:44,641 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be2ad308-45f5-4d2a-a13d-68884f4ffc2b/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-25 18:25:45,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:25:45,285 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-25 18:25:45,286 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:25:46,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:25:46,030 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 18:25:46,030 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-25 18:25:46,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [202500952] [2021-11-25 18:25:46,031 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [202500952] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:25:46,032 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:25:46,032 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-25 18:25:46,032 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19254441] [2021-11-25 18:25:46,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:25:46,033 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-25 18:25:46,033 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-25 18:25:46,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-25 18:25:46,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-25 18:25:46,034 INFO L87 Difference]: Start difference. First operand 33 states and 42 transitions. Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:25:49,636 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.42s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-25 18:25:51,821 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-25 18:25:54,821 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-25 18:25:56,912 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-25 18:25:58,996 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-25 18:26:01,107 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-25 18:26:03,196 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-25 18:26:05,317 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-25 18:26:05,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:26:05,318 INFO L93 Difference]: Finished difference Result 39 states and 47 transitions. [2021-11-25 18:26:05,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 18:26:05,358 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-11-25 18:26:05,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:26:05,359 INFO L225 Difference]: With dead ends: 39 [2021-11-25 18:26:05,360 INFO L226 Difference]: Without dead ends: 34 [2021-11-25 18:26:05,360 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-11-25 18:26:05,363 INFO L933 BasicCegarLoop]: 30 mSDtfsCounter, 16 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 15 IncrementalHoareTripleChecker+Unchecked, 19.0s IncrementalHoareTripleChecker+Time [2021-11-25 18:26:05,364 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 115 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 8 Unknown, 15 Unchecked, 19.0s Time] [2021-11-25 18:26:05,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2021-11-25 18:26:05,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 33. [2021-11-25 18:26:05,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 32 states have (on average 1.28125) internal successors, (41), 32 states have internal predecessors, (41), 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) [2021-11-25 18:26:05,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 41 transitions. [2021-11-25 18:26:05,379 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 41 transitions. Word has length 17 [2021-11-25 18:26:05,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:26:05,380 INFO L470 AbstractCegarLoop]: Abstraction has 33 states and 41 transitions. [2021-11-25 18:26:05,380 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-25 18:26:05,381 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 41 transitions. [2021-11-25 18:26:05,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-25 18:26:05,382 INFO L506 BasicCegarLoop]: Found error trace [2021-11-25 18:26:05,382 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-25 18:26:05,405 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be2ad308-45f5-4d2a-a13d-68884f4ffc2b/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-25 18:26:05,592 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be2ad308-45f5-4d2a-a13d-68884f4ffc2b/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 [2021-11-25 18:26:05,593 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-25 18:26:05,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-25 18:26:05,593 INFO L85 PathProgramCache]: Analyzing trace with hash -1989606143, now seen corresponding path program 1 times [2021-11-25 18:26:05,594 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-25 18:26:05,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [14045488] [2021-11-25 18:26:05,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-25 18:26:05,594 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-25 18:26:05,594 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be2ad308-45f5-4d2a-a13d-68884f4ffc2b/bin/utaipan-eEHZpOm5b7/mathsat [2021-11-25 18:26:05,595 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be2ad308-45f5-4d2a-a13d-68884f4ffc2b/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-25 18:26:05,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be2ad308-45f5-4d2a-a13d-68884f4ffc2b/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-25 18:26:05,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-25 18:26:05,989 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-25 18:26:05,991 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-25 18:26:06,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-25 18:26:06,707 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-25 18:26:06,707 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-25 18:26:06,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [14045488] [2021-11-25 18:26:06,708 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [14045488] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-25 18:26:06,708 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-25 18:26:06,708 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-25 18:26:06,708 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095233083] [2021-11-25 18:26:06,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-25 18:26:06,710 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-25 18:26:06,710 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-25 18:26:06,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-25 18:26:06,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-25 18:26:06,711 INFO L87 Difference]: Start difference. First operand 33 states and 41 transitions. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 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) [2021-11-25 18:26:06,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-25 18:26:06,715 INFO L93 Difference]: Finished difference Result 33 states and 41 transitions. [2021-11-25 18:26:06,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-25 18:26:06,716 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-11-25 18:26:06,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-25 18:26:06,716 INFO L225 Difference]: With dead ends: 33 [2021-11-25 18:26:06,716 INFO L226 Difference]: Without dead ends: 0 [2021-11-25 18:26:06,717 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-25 18:26:06,718 INFO L933 BasicCegarLoop]: 8 mSDtfsCounter, 0 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 6 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-25 18:26:06,719 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 31 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 6 Unchecked, 0.0s Time] [2021-11-25 18:26:06,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-25 18:26:06,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-25 18:26:06,720 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) [2021-11-25 18:26:06,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-25 18:26:06,721 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2021-11-25 18:26:06,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-25 18:26:06,721 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-25 18:26:06,721 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 6 states have internal predecessors, (18), 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) [2021-11-25 18:26:06,722 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-25 18:26:06,722 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-25 18:26:06,725 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-25 18:26:06,748 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be2ad308-45f5-4d2a-a13d-68884f4ffc2b/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-25 18:26:06,936 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be2ad308-45f5-4d2a-a13d-68884f4ffc2b/bin/utaipan-eEHZpOm5b7/mathsat -unsat_core_generation=3 [2021-11-25 18:26:06,942 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-25 18:26:07,297 INFO L858 garLoopResultBuilder]: For program point L118-1(lines 118 122) no Hoare annotation was computed. [2021-11-25 18:26:07,298 INFO L854 garLoopResultBuilder]: At program point L118-2(lines 118 122) the Hoare annotation is: (and (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ~zero_log~0) (= currentRoundingMode roundNearestTiesToEven) (exists ((currentRoundingMode RoundingMode)) (fp.lt |ULTIMATE.start_main_~x~0#1| ((_ to_fp 8 24) currentRoundingMode (_ bv0 32))))) [2021-11-25 18:26:07,298 INFO L858 garLoopResultBuilder]: For program point L118-3(lines 118 122) no Hoare annotation was computed. [2021-11-25 18:26:07,298 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-25 18:26:07,298 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-25 18:26:07,298 INFO L858 garLoopResultBuilder]: For program point L45(lines 45 46) no Hoare annotation was computed. [2021-11-25 18:26:07,298 INFO L858 garLoopResultBuilder]: For program point L136(line 136) no Hoare annotation was computed. [2021-11-25 18:26:07,299 INFO L858 garLoopResultBuilder]: For program point L136-2(lines 136 145) no Hoare annotation was computed. [2021-11-25 18:26:07,299 INFO L858 garLoopResultBuilder]: For program point L70(lines 70 86) no Hoare annotation was computed. [2021-11-25 18:26:07,299 INFO L858 garLoopResultBuilder]: For program point L136-4(lines 136 145) no Hoare annotation was computed. [2021-11-25 18:26:07,300 INFO L858 garLoopResultBuilder]: For program point L54-1(lines 54 58) no Hoare annotation was computed. [2021-11-25 18:26:07,300 INFO L854 garLoopResultBuilder]: At program point L54-2(lines 54 58) the Hoare annotation is: false [2021-11-25 18:26:07,301 INFO L858 garLoopResultBuilder]: For program point L71(lines 71 78) no Hoare annotation was computed. [2021-11-25 18:26:07,301 INFO L858 garLoopResultBuilder]: For program point L38-1(lines 38 42) no Hoare annotation was computed. [2021-11-25 18:26:07,306 INFO L854 garLoopResultBuilder]: At program point L38-2(lines 38 42) the Hoare annotation is: (and (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ~zero_log~0) (exists ((currentRoundingMode RoundingMode)) (fp.lt |ULTIMATE.start___ieee754_logf_~x#1| ((_ to_fp 8 24) currentRoundingMode (_ bv0 32)))) (= currentRoundingMode roundNearestTiesToEven)) [2021-11-25 18:26:07,306 INFO L858 garLoopResultBuilder]: For program point L38-3(lines 38 42) no Hoare annotation was computed. [2021-11-25 18:26:07,307 INFO L858 garLoopResultBuilder]: For program point L63-1(lines 63 67) no Hoare annotation was computed. [2021-11-25 18:26:07,307 INFO L854 garLoopResultBuilder]: At program point L63-2(lines 63 67) the Hoare annotation is: false [2021-11-25 18:26:07,307 INFO L858 garLoopResultBuilder]: For program point L63-3(lines 63 67) no Hoare annotation was computed. [2021-11-25 18:26:07,307 INFO L854 garLoopResultBuilder]: At program point L113(line 113) the Hoare annotation is: (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res#1|) [2021-11-25 18:26:07,307 INFO L858 garLoopResultBuilder]: For program point L80(lines 80 85) no Hoare annotation was computed. [2021-11-25 18:26:07,307 INFO L858 garLoopResultBuilder]: For program point L47(lines 47 48) no Hoare annotation was computed. [2021-11-25 18:26:07,307 INFO L858 garLoopResultBuilder]: For program point L105(lines 105 108) no Hoare annotation was computed. [2021-11-25 18:26:07,307 INFO L858 garLoopResultBuilder]: For program point L72(lines 72 77) no Hoare annotation was computed. [2021-11-25 18:26:07,308 INFO L858 garLoopResultBuilder]: For program point L97(lines 97 109) no Hoare annotation was computed. [2021-11-25 18:26:07,308 INFO L861 garLoopResultBuilder]: At program point L147(lines 127 148) the Hoare annotation is: true [2021-11-25 18:26:07,308 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-25 18:26:07,308 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 142) no Hoare annotation was computed. [2021-11-25 18:26:07,308 INFO L858 garLoopResultBuilder]: For program point L49(lines 49 50) no Hoare annotation was computed. [2021-11-25 18:26:07,308 INFO L858 garLoopResultBuilder]: For program point L99(lines 99 103) no Hoare annotation was computed. [2021-11-25 18:26:07,308 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-25 18:26:07,309 INFO L854 garLoopResultBuilder]: At program point L124(lines 116 125) the Hoare annotation is: (and (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ~zero_log~0) (= currentRoundingMode roundNearestTiesToEven) (exists ((currentRoundingMode RoundingMode)) (fp.lt |ULTIMATE.start_main_~x~0#1| ((_ to_fp 8 24) currentRoundingMode (_ bv0 32))))) [2021-11-25 18:26:07,309 INFO L858 garLoopResultBuilder]: For program point L141(lines 141 144) no Hoare annotation was computed. [2021-11-25 18:26:07,309 INFO L854 garLoopResultBuilder]: At program point L108(lines 34 110) the Hoare annotation is: (and (exists ((|ULTIMATE.start___ieee754_logf_~x#1| (_ FloatingPoint 8 24))) (= (fp.div roundNearestTiesToEven (fp.sub roundNearestTiesToEven |ULTIMATE.start___ieee754_logf_~x#1| |ULTIMATE.start___ieee754_logf_~x#1|) ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53))) |ULTIMATE.start___ieee754_logf_#res#1|)) (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ~zero_log~0) (= currentRoundingMode roundNearestTiesToEven)) [2021-11-25 18:26:07,309 INFO L858 garLoopResultBuilder]: For program point L51(lines 51 59) no Hoare annotation was computed. [2021-11-25 18:26:07,309 INFO L858 garLoopResultBuilder]: For program point L51-1(lines 51 59) no Hoare annotation was computed. [2021-11-25 18:26:07,309 INFO L858 garLoopResultBuilder]: For program point L142(line 142) no Hoare annotation was computed. [2021-11-25 18:26:07,312 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2021-11-25 18:26:07,313 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-25 18:26:07,342 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 18:26:07,343 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-25 18:26:07,345 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 18:26:07,346 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-25 18:26:07,348 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 18:26:07,348 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 18:26:07,349 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_logf_~x#1,QUANTIFIED] [2021-11-25 18:26:07,349 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_logf_~x#1,QUANTIFIED] [2021-11-25 18:26:07,349 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 18:26:07,350 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 18:26:07,351 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 18:26:07,351 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 18:26:07,351 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_logf_~x#1,QUANTIFIED] [2021-11-25 18:26:07,352 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_logf_~x#1,QUANTIFIED] [2021-11-25 18:26:07,352 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 18:26:07,352 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 18:26:07,353 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 18:26:07,353 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-25 18:26:07,354 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 18:26:07,354 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-25 18:26:07,355 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-25 18:26:07,355 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 18:26:07,356 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-25 18:26:07,356 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 18:26:07,360 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 06:26:07 BoogieIcfgContainer [2021-11-25 18:26:07,360 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-25 18:26:07,362 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-25 18:26:07,362 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-25 18:26:07,362 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-25 18:26:07,363 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 06:25:40" (3/4) ... [2021-11-25 18:26:07,366 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-25 18:26:07,387 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 23 nodes and edges [2021-11-25 18:26:07,388 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2021-11-25 18:26:07,388 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-25 18:26:07,389 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-25 18:26:07,416 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero_log && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32))) [2021-11-25 18:26:07,418 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero_log && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32))) [2021-11-25 18:26:07,418 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero_log && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32)))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2021-11-25 18:26:07,419 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\exists ULTIMATE.start___ieee754_logf_~x#1 : C_FLOAT :: ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ULTIMATE.start___ieee754_logf_~x#1, ULTIMATE.start___ieee754_logf_~x#1), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) == \result) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero_log) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2021-11-25 18:26:07,420 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: 1bv32 == \result [2021-11-25 18:26:07,462 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be2ad308-45f5-4d2a-a13d-68884f4ffc2b/bin/utaipan-eEHZpOm5b7/witness.graphml [2021-11-25 18:26:07,463 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-25 18:26:07,463 INFO L158 Benchmark]: Toolchain (without parser) took 44823.98ms. Allocated memory is still 71.3MB. Free memory was 49.1MB in the beginning and 38.6MB in the end (delta: 10.5MB). Peak memory consumption was 10.8MB. Max. memory is 16.1GB. [2021-11-25 18:26:07,464 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 52.4MB. Free memory was 32.9MB in the beginning and 32.9MB in the end (delta: 41.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-25 18:26:07,464 INFO L158 Benchmark]: CACSL2BoogieTranslator took 561.84ms. Allocated memory is still 71.3MB. Free memory was 49.0MB in the beginning and 51.9MB in the end (delta: -2.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-25 18:26:07,464 INFO L158 Benchmark]: Boogie Procedure Inliner took 83.64ms. Allocated memory is still 71.3MB. Free memory was 51.9MB in the beginning and 49.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-25 18:26:07,465 INFO L158 Benchmark]: Boogie Preprocessor took 74.41ms. Allocated memory is still 71.3MB. Free memory was 49.8MB in the beginning and 47.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-25 18:26:07,466 INFO L158 Benchmark]: RCFGBuilder took 17585.82ms. Allocated memory is still 71.3MB. Free memory was 47.7MB in the beginning and 33.3MB in the end (delta: 14.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-25 18:26:07,466 INFO L158 Benchmark]: TraceAbstraction took 26408.06ms. Allocated memory is still 71.3MB. Free memory was 32.8MB in the beginning and 43.6MB in the end (delta: -10.8MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-25 18:26:07,467 INFO L158 Benchmark]: Witness Printer took 101.15ms. Allocated memory is still 71.3MB. Free memory was 43.6MB in the beginning and 38.6MB in the end (delta: 5.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-25 18:26:07,470 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 52.4MB. Free memory was 32.9MB in the beginning and 32.9MB in the end (delta: 41.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 561.84ms. Allocated memory is still 71.3MB. Free memory was 49.0MB in the beginning and 51.9MB in the end (delta: -2.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 83.64ms. Allocated memory is still 71.3MB. Free memory was 51.9MB in the beginning and 49.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 74.41ms. Allocated memory is still 71.3MB. Free memory was 49.8MB in the beginning and 47.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 17585.82ms. Allocated memory is still 71.3MB. Free memory was 47.7MB in the beginning and 33.3MB in the end (delta: 14.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 26408.06ms. Allocated memory is still 71.3MB. Free memory was 32.8MB in the beginning and 43.6MB in the end (delta: -10.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 101.15ms. Allocated memory is still 71.3MB. Free memory was 43.6MB in the beginning and 38.6MB in the end (delta: 5.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_logf_~x#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_logf_~x#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_logf_~x#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_logf_~x#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 142]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 37 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 26.3s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 19.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 8 mSolverCounterUnknown, 16 SdHoareTripleChecker+Valid, 19.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 16 mSDsluCounter, 442 SdHoareTripleChecker+Invalid, 18.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 44 IncrementalHoareTripleChecker+Unchecked, 273 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 32 IncrementalHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 169 mSDtfsCounter, 32 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 71 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=0, InterpolantAutomatonStates: 23, 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, 5 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 8 PreInvPairs, 14 NumberOfFragments, 72 HoareAnnotationTreeSize, 8 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 2.4s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 74 NumberOfCodeBlocks, 74 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 69 ConstructedInterpolants, 22 QuantifiedInterpolants, 354 SizeOfPredicates, 22 NumberOfNonLiveVariables, 318 ConjunctsInSsa, 32 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 54]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 113]: Loop Invariant Derived loop invariant: 1bv32 == \result - InvariantResult [Line: 63]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 116]: Loop Invariant [2021-11-25 18:26:07,496 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 18:26:07,497 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-25 18:26:07,498 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 18:26:07,498 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero_log && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32))) - InvariantResult [Line: 34]: Loop Invariant [2021-11-25 18:26:07,500 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 18:26:07,500 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 18:26:07,500 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_logf_~x#1,QUANTIFIED] [2021-11-25 18:26:07,500 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_logf_~x#1,QUANTIFIED] [2021-11-25 18:26:07,500 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 18:26:07,501 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 18:26:07,501 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 18:26:07,501 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 18:26:07,502 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_logf_~x#1,QUANTIFIED] [2021-11-25 18:26:07,502 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_logf_~x#1,QUANTIFIED] [2021-11-25 18:26:07,502 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 18:26:07,502 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((\exists ULTIMATE.start___ieee754_logf_~x#1 : C_FLOAT :: ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ULTIMATE.start___ieee754_logf_~x#1, ULTIMATE.start___ieee754_logf_~x#1), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) == \result) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero_log) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 118]: Loop Invariant [2021-11-25 18:26:07,503 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 18:26:07,503 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-25 18:26:07,509 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 18:26:07,512 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero_log && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32))) - InvariantResult [Line: 38]: Loop Invariant [2021-11-25 18:26:07,513 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-25 18:26:07,513 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-25 18:26:07,514 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-25 18:26:07,514 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero_log && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32)))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 127]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-11-25 18:26:07,653 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_be2ad308-45f5-4d2a-a13d-68884f4ffc2b/bin/utaipan-eEHZpOm5b7/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE