./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0970b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d98814ab-9185-4d1c-b78f-74114b5f58cb/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d98814ab-9185-4d1c-b78f-74114b5f58cb/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d98814ab-9185-4d1c-b78f-74114b5f58cb/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d98814ab-9185-4d1c-b78f-74114b5f58cb/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0970b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d98814ab-9185-4d1c-b78f-74114b5f58cb/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d98814ab-9185-4d1c-b78f-74114b5f58cb/bin/utaipan-TEXQjIfE4P --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7a3d3bb15f1283b96fbc9519b4946e30f904b241ec984b139ceb6db5a438fc07 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 00:37:04,261 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 00:37:04,264 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 00:37:04,321 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 00:37:04,321 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 00:37:04,326 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 00:37:04,330 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 00:37:04,335 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 00:37:04,338 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 00:37:04,345 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 00:37:04,346 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 00:37:04,348 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 00:37:04,349 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 00:37:04,351 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 00:37:04,353 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 00:37:04,356 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 00:37:04,358 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 00:37:04,359 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 00:37:04,368 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 00:37:04,373 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 00:37:04,378 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 00:37:04,379 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 00:37:04,383 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 00:37:04,384 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 00:37:04,391 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 00:37:04,392 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 00:37:04,392 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 00:37:04,395 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 00:37:04,395 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 00:37:04,397 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 00:37:04,397 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 00:37:04,398 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 00:37:04,399 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 00:37:04,401 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 00:37:04,402 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 00:37:04,403 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 00:37:04,404 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 00:37:04,404 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 00:37:04,404 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 00:37:04,405 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 00:37:04,406 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 00:37:04,407 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d98814ab-9185-4d1c-b78f-74114b5f58cb/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-21 00:37:04,457 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 00:37:04,457 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 00:37:04,458 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 00:37:04,458 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 00:37:04,459 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 00:37:04,459 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 00:37:04,460 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 00:37:04,460 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 00:37:04,460 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 00:37:04,460 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 00:37:04,462 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 00:37:04,462 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 00:37:04,462 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 00:37:04,462 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 00:37:04,462 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 00:37:04,463 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 00:37:04,463 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 00:37:04,463 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 00:37:04,465 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 00:37:04,465 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-21 00:37:04,465 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 00:37:04,465 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-21 00:37:04,466 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 00:37:04,466 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 00:37:04,466 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 00:37:04,466 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 00:37:04,468 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-21 00:37:04,469 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 00:37:04,469 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 00:37:04,469 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 00:37:04,469 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 00:37:04,470 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 00:37:04,470 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 00:37:04,470 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 00:37:04,470 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 00:37:04,471 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 00:37:04,471 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 00:37:04,471 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 00:37:04,471 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 00:37:04,471 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 00:37:04,472 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 00:37:04,472 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_d98814ab-9185-4d1c-b78f-74114b5f58cb/bin/utaipan-TEXQjIfE4P/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d98814ab-9185-4d1c-b78f-74114b5f58cb/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7a3d3bb15f1283b96fbc9519b4946e30f904b241ec984b139ceb6db5a438fc07 [2021-11-21 00:37:04,762 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 00:37:04,796 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 00:37:04,799 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 00:37:04,802 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 00:37:04,802 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 00:37:04,804 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d98814ab-9185-4d1c-b78f-74114b5f58cb/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/float-newlib/float_req_bl_0970b.c [2021-11-21 00:37:04,884 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d98814ab-9185-4d1c-b78f-74114b5f58cb/bin/utaipan-TEXQjIfE4P/data/bab072d68/69ba69d285074a9ab5541c6e012de7bd/FLAGf0ee865d9 [2021-11-21 00:37:05,393 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 00:37:05,393 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d98814ab-9185-4d1c-b78f-74114b5f58cb/sv-benchmarks/c/float-newlib/float_req_bl_0970b.c [2021-11-21 00:37:05,402 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d98814ab-9185-4d1c-b78f-74114b5f58cb/bin/utaipan-TEXQjIfE4P/data/bab072d68/69ba69d285074a9ab5541c6e012de7bd/FLAGf0ee865d9 [2021-11-21 00:37:05,741 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d98814ab-9185-4d1c-b78f-74114b5f58cb/bin/utaipan-TEXQjIfE4P/data/bab072d68/69ba69d285074a9ab5541c6e012de7bd [2021-11-21 00:37:05,744 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 00:37:05,746 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 00:37:05,759 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 00:37:05,760 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 00:37:05,763 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 00:37:05,765 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:37:05" (1/1) ... [2021-11-21 00:37:05,768 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f0075f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:37:05, skipping insertion in model container [2021-11-21 00:37:05,769 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:37:05" (1/1) ... [2021-11-21 00:37:05,778 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 00:37:05,811 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 00:37:06,035 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_d98814ab-9185-4d1c-b78f-74114b5f58cb/sv-benchmarks/c/float-newlib/float_req_bl_0970b.c[4118,4131] [2021-11-21 00:37:06,038 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:37:06,047 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 00:37:06,091 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_d98814ab-9185-4d1c-b78f-74114b5f58cb/sv-benchmarks/c/float-newlib/float_req_bl_0970b.c[4118,4131] [2021-11-21 00:37:06,091 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:37:06,107 INFO L208 MainTranslator]: Completed translation [2021-11-21 00:37:06,107 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:37:06 WrapperNode [2021-11-21 00:37:06,108 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 00:37:06,109 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 00:37:06,109 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 00:37:06,109 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 00:37:06,118 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:37:06" (1/1) ... [2021-11-21 00:37:06,130 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:37:06" (1/1) ... [2021-11-21 00:37:06,165 INFO L137 Inliner]: procedures = 18, calls = 34, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 206 [2021-11-21 00:37:06,166 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 00:37:06,167 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 00:37:06,167 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 00:37:06,167 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 00:37:06,176 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:37:06" (1/1) ... [2021-11-21 00:37:06,177 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:37:06" (1/1) ... [2021-11-21 00:37:06,182 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:37:06" (1/1) ... [2021-11-21 00:37:06,182 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:37:06" (1/1) ... [2021-11-21 00:37:06,211 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:37:06" (1/1) ... [2021-11-21 00:37:06,216 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:37:06" (1/1) ... [2021-11-21 00:37:06,219 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:37:06" (1/1) ... [2021-11-21 00:37:06,223 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 00:37:06,224 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 00:37:06,224 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 00:37:06,224 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 00:37:06,233 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:37:06" (1/1) ... [2021-11-21 00:37:06,250 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 00:37:06,263 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d98814ab-9185-4d1c-b78f-74114b5f58cb/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:37:06,284 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d98814ab-9185-4d1c-b78f-74114b5f58cb/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 00:37:06,306 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d98814ab-9185-4d1c-b78f-74114b5f58cb/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 00:37:06,345 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 00:37:06,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 00:37:06,346 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 00:37:06,346 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-11-21 00:37:06,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-21 00:37:06,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-11-21 00:37:06,347 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 00:37:06,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 00:37:06,347 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-21 00:37:06,347 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 00:37:06,482 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 00:37:06,484 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 00:37:06,827 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 00:37:06,891 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 00:37:06,892 INFO L301 CfgBuilder]: Removed 12 assume(true) statements. [2021-11-21 00:37:06,894 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:37:06 BoogieIcfgContainer [2021-11-21 00:37:06,894 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 00:37:06,896 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 00:37:06,897 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 00:37:06,900 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 00:37:06,901 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 12:37:05" (1/3) ... [2021-11-21 00:37:06,901 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c12decf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:37:06, skipping insertion in model container [2021-11-21 00:37:06,902 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:37:06" (2/3) ... [2021-11-21 00:37:06,902 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c12decf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:37:06, skipping insertion in model container [2021-11-21 00:37:06,902 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:37:06" (3/3) ... [2021-11-21 00:37:06,904 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0970b.c [2021-11-21 00:37:06,909 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 00:37:06,910 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-21 00:37:06,974 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 00:37:06,982 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-21 00:37:06,982 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-21 00:37:07,000 INFO L276 IsEmpty]: Start isEmpty. Operand has 34 states, 32 states have (on average 1.6875) internal successors, (54), 33 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:37:07,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-21 00:37:07,006 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:37:07,007 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:37:07,008 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:37:07,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:37:07,014 INFO L85 PathProgramCache]: Analyzing trace with hash 1936369677, now seen corresponding path program 1 times [2021-11-21 00:37:07,026 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:37:07,026 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1777262301] [2021-11-21 00:37:07,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:37:07,028 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:37:07,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:37:07,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:37:07,189 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 00:37:07,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1777262301] [2021-11-21 00:37:07,190 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1777262301] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 00:37:07,190 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:37:07,190 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 00:37:07,192 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192600121] [2021-11-21 00:37:07,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 00:37:07,198 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-21 00:37:07,198 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 00:37:07,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-21 00:37:07,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-21 00:37:07,232 INFO L87 Difference]: Start difference. First operand has 34 states, 32 states have (on average 1.6875) internal successors, (54), 33 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:37:07,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:37:07,265 INFO L93 Difference]: Finished difference Result 67 states and 107 transitions. [2021-11-21 00:37:07,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-21 00:37:07,268 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-11-21 00:37:07,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:37:07,278 INFO L225 Difference]: With dead ends: 67 [2021-11-21 00:37:07,278 INFO L226 Difference]: Without dead ends: 32 [2021-11-21 00:37:07,282 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-21 00:37:07,286 INFO L933 BasicCegarLoop]: 37 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 37 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 [2021-11-21 00:37:07,287 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 37 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-21 00:37:07,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2021-11-21 00:37:07,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2021-11-21 00:37:07,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 31 states have (on average 1.2580645161290323) internal successors, (39), 31 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:37:07,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 39 transitions. [2021-11-21 00:37:07,326 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 39 transitions. Word has length 7 [2021-11-21 00:37:07,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:37:07,326 INFO L470 AbstractCegarLoop]: Abstraction has 32 states and 39 transitions. [2021-11-21 00:37:07,326 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:37:07,327 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 39 transitions. [2021-11-21 00:37:07,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-21 00:37:07,327 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:37:07,327 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:37:07,328 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-21 00:37:07,328 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:37:07,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:37:07,329 INFO L85 PathProgramCache]: Analyzing trace with hash 2124741948, now seen corresponding path program 1 times [2021-11-21 00:37:07,329 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 00:37:07,330 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254351415] [2021-11-21 00:37:07,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:37:07,330 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 00:37:07,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-21 00:37:07,379 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-21 00:37:07,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-21 00:37:07,434 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-21 00:37:07,435 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-21 00:37:07,437 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-21 00:37:07,439 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-21 00:37:07,443 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-21 00:37:07,447 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-21 00:37:07,480 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 12:37:07 BoogieIcfgContainer [2021-11-21 00:37:07,480 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-21 00:37:07,481 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-21 00:37:07,481 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-21 00:37:07,481 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-21 00:37:07,482 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:37:06" (3/4) ... [2021-11-21 00:37:07,485 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-21 00:37:07,485 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-21 00:37:07,486 INFO L158 Benchmark]: Toolchain (without parser) took 1739.93ms. Allocated memory is still 130.0MB. Free memory was 94.7MB in the beginning and 54.4MB in the end (delta: 40.3MB). Peak memory consumption was 36.9MB. Max. memory is 16.1GB. [2021-11-21 00:37:07,487 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 88.1MB. Free memory was 58.6MB in the beginning and 58.6MB in the end (delta: 30.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 00:37:07,487 INFO L158 Benchmark]: CACSL2BoogieTranslator took 348.55ms. Allocated memory is still 130.0MB. Free memory was 94.5MB in the beginning and 103.7MB in the end (delta: -9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-21 00:37:07,488 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.23ms. Allocated memory is still 130.0MB. Free memory was 103.7MB in the beginning and 101.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-21 00:37:07,489 INFO L158 Benchmark]: Boogie Preprocessor took 56.41ms. Allocated memory is still 130.0MB. Free memory was 101.3MB in the beginning and 99.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-21 00:37:07,490 INFO L158 Benchmark]: RCFGBuilder took 670.78ms. Allocated memory is still 130.0MB. Free memory was 99.6MB in the beginning and 81.7MB in the end (delta: 17.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-11-21 00:37:07,490 INFO L158 Benchmark]: TraceAbstraction took 583.55ms. Allocated memory is still 130.0MB. Free memory was 81.4MB in the beginning and 54.8MB in the end (delta: 26.6MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2021-11-21 00:37:07,491 INFO L158 Benchmark]: Witness Printer took 4.48ms. Allocated memory is still 130.0MB. Free memory was 54.8MB in the beginning and 54.4MB in the end (delta: 362.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 00:37:07,494 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 88.1MB. Free memory was 58.6MB in the beginning and 58.6MB in the end (delta: 30.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 348.55ms. Allocated memory is still 130.0MB. Free memory was 94.5MB in the beginning and 103.7MB in the end (delta: -9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.23ms. Allocated memory is still 130.0MB. Free memory was 103.7MB in the beginning and 101.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.41ms. Allocated memory is still 130.0MB. Free memory was 101.3MB in the beginning and 99.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 670.78ms. Allocated memory is still 130.0MB. Free memory was 99.6MB in the beginning and 81.7MB in the end (delta: 17.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 583.55ms. Allocated memory is still 130.0MB. Free memory was 81.4MB in the beginning and 54.8MB in the end (delta: 26.6MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Witness Printer took 4.48ms. Allocated memory is still 130.0MB. Free memory was 54.8MB in the beginning and 54.4MB in the end (delta: 362.8kB). 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: 161]: 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 147, overapproximation of someBinaryArithmeticFLOAToperation at line 119, overapproximation of bitwiseAnd at line 118. Possible FailurePath: [L14-L18] 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; [L20] static const float zero_log = 0.0; [L100-L103] static const float two25_log10 = 3.3554432000e+07, ivln10_log10 = 4.3429449201e-01, log10_2hi_log10 = 3.0102920532e-01, log10_2lo_log10 = 7.9034151668e-07; [L105] static const float zero = 0.0; [L156] float x = -1.0f / 0.0f; [L157] CALL, EXPR __ieee754_log10f(x) [L108] float y, z; [L109] __int32_t i, k, hx; VAL [\old(x)=4294967296, ivln10_log10=43429449201/100000000000, 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, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, x=4294967296, zero=0, zero_log=0] [L112] ieee_float_shape_type gf_u; [L113] gf_u.value = (x) [L114] EXPR gf_u.word [L114] (hx) = gf_u.word [L117] k = 0 VAL [\old(x)=4294967296, hx=-1, ivln10_log10=43429449201/100000000000, 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, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, x=4294967296, zero=0, zero_log=0] [L118] COND TRUE ((hx & 0x7fffffff) == 0) [L119] return -two25_log10 / zero; VAL [\old(x)=4294967296, hx=-1, ivln10_log10=43429449201/100000000000, 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, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, x=4294967296, zero=0, zero_log=0] [L157] RET, EXPR __ieee754_log10f(x) [L157] float res = __ieee754_log10f(x); [L160] CALL, EXPR isnan_float(res) [L147] return x != x; [L160] RET, EXPR isnan_float(res) [L160] COND TRUE !isnan_float(res) [L161] reach_error() VAL [ivln10_log10=43429449201/100000000000, 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, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, res=4294967297, two25_log=33554432, two25_log10=33554432, x=4294967296, zero=0, zero_log=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 34 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 37 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4 IncrementalHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 37 mSDtfsCounter, 4 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-21 00:37:07,552 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d98814ab-9185-4d1c-b78f-74114b5f58cb/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d98814ab-9185-4d1c-b78f-74114b5f58cb/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d98814ab-9185-4d1c-b78f-74114b5f58cb/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d98814ab-9185-4d1c-b78f-74114b5f58cb/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d98814ab-9185-4d1c-b78f-74114b5f58cb/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0970b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d98814ab-9185-4d1c-b78f-74114b5f58cb/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d98814ab-9185-4d1c-b78f-74114b5f58cb/bin/utaipan-TEXQjIfE4P --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7a3d3bb15f1283b96fbc9519b4946e30f904b241ec984b139ceb6db5a438fc07 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 00:37:10,107 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 00:37:10,110 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 00:37:10,149 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 00:37:10,150 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 00:37:10,155 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 00:37:10,159 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 00:37:10,164 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 00:37:10,168 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 00:37:10,177 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 00:37:10,178 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 00:37:10,180 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 00:37:10,182 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 00:37:10,184 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 00:37:10,186 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 00:37:10,189 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 00:37:10,192 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 00:37:10,193 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 00:37:10,208 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 00:37:10,211 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 00:37:10,217 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 00:37:10,219 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 00:37:10,223 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 00:37:10,225 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 00:37:10,233 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 00:37:10,237 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 00:37:10,238 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 00:37:10,239 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 00:37:10,241 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 00:37:10,242 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 00:37:10,242 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 00:37:10,243 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 00:37:10,246 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 00:37:10,247 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 00:37:10,248 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 00:37:10,249 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 00:37:10,250 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 00:37:10,250 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 00:37:10,250 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 00:37:10,252 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 00:37:10,253 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 00:37:10,254 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d98814ab-9185-4d1c-b78f-74114b5f58cb/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-21 00:37:10,300 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 00:37:10,301 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 00:37:10,301 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 00:37:10,302 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 00:37:10,303 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 00:37:10,303 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 00:37:10,303 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 00:37:10,303 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 00:37:10,304 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 00:37:10,304 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 00:37:10,305 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 00:37:10,305 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 00:37:10,307 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 00:37:10,307 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-21 00:37:10,307 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-21 00:37:10,308 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 00:37:10,308 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 00:37:10,308 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 00:37:10,308 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 00:37:10,309 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-21 00:37:10,309 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-21 00:37:10,309 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-21 00:37:10,309 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 00:37:10,309 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 00:37:10,310 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 00:37:10,310 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 00:37:10,310 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-21 00:37:10,310 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 00:37:10,311 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 00:37:10,311 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 00:37:10,311 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 00:37:10,312 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 00:37:10,312 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-21 00:37:10,312 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-21 00:37:10,313 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 00:37:10,313 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 00:37:10,313 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 00:37:10,314 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_d98814ab-9185-4d1c-b78f-74114b5f58cb/bin/utaipan-TEXQjIfE4P/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d98814ab-9185-4d1c-b78f-74114b5f58cb/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7a3d3bb15f1283b96fbc9519b4946e30f904b241ec984b139ceb6db5a438fc07 [2021-11-21 00:37:10,679 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 00:37:10,722 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 00:37:10,724 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 00:37:10,725 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 00:37:10,726 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 00:37:10,727 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d98814ab-9185-4d1c-b78f-74114b5f58cb/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/float-newlib/float_req_bl_0970b.c [2021-11-21 00:37:10,801 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d98814ab-9185-4d1c-b78f-74114b5f58cb/bin/utaipan-TEXQjIfE4P/data/3e2db1cdc/a98b13d55cf5414d93f2517e1e81f7b4/FLAGd8fa70e40 [2021-11-21 00:37:11,400 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 00:37:11,407 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d98814ab-9185-4d1c-b78f-74114b5f58cb/sv-benchmarks/c/float-newlib/float_req_bl_0970b.c [2021-11-21 00:37:11,419 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d98814ab-9185-4d1c-b78f-74114b5f58cb/bin/utaipan-TEXQjIfE4P/data/3e2db1cdc/a98b13d55cf5414d93f2517e1e81f7b4/FLAGd8fa70e40 [2021-11-21 00:37:11,746 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d98814ab-9185-4d1c-b78f-74114b5f58cb/bin/utaipan-TEXQjIfE4P/data/3e2db1cdc/a98b13d55cf5414d93f2517e1e81f7b4 [2021-11-21 00:37:11,755 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 00:37:11,757 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 00:37:11,760 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 00:37:11,760 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 00:37:11,765 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 00:37:11,766 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:37:11" (1/1) ... [2021-11-21 00:37:11,769 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a5522bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:37:11, skipping insertion in model container [2021-11-21 00:37:11,769 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 12:37:11" (1/1) ... [2021-11-21 00:37:11,777 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 00:37:11,814 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 00:37:12,011 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_d98814ab-9185-4d1c-b78f-74114b5f58cb/sv-benchmarks/c/float-newlib/float_req_bl_0970b.c[4118,4131] [2021-11-21 00:37:12,014 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:37:12,030 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 00:37:12,136 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_d98814ab-9185-4d1c-b78f-74114b5f58cb/sv-benchmarks/c/float-newlib/float_req_bl_0970b.c[4118,4131] [2021-11-21 00:37:12,149 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 00:37:12,176 INFO L208 MainTranslator]: Completed translation [2021-11-21 00:37:12,177 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:37:12 WrapperNode [2021-11-21 00:37:12,177 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 00:37:12,179 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 00:37:12,179 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 00:37:12,179 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 00:37:12,187 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:37:12" (1/1) ... [2021-11-21 00:37:12,212 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:37:12" (1/1) ... [2021-11-21 00:37:12,261 INFO L137 Inliner]: procedures = 21, calls = 34, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 206 [2021-11-21 00:37:12,263 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 00:37:12,264 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 00:37:12,264 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 00:37:12,264 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 00:37:12,273 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:37:12" (1/1) ... [2021-11-21 00:37:12,274 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:37:12" (1/1) ... [2021-11-21 00:37:12,296 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:37:12" (1/1) ... [2021-11-21 00:37:12,297 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:37:12" (1/1) ... [2021-11-21 00:37:12,310 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:37:12" (1/1) ... [2021-11-21 00:37:12,316 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:37:12" (1/1) ... [2021-11-21 00:37:12,319 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:37:12" (1/1) ... [2021-11-21 00:37:12,324 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 00:37:12,325 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 00:37:12,325 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 00:37:12,325 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 00:37:12,326 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:37:12" (1/1) ... [2021-11-21 00:37:12,339 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 00:37:12,355 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d98814ab-9185-4d1c-b78f-74114b5f58cb/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 00:37:12,375 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d98814ab-9185-4d1c-b78f-74114b5f58cb/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 00:37:12,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d98814ab-9185-4d1c-b78f-74114b5f58cb/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 00:37:12,439 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 00:37:12,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-21 00:37:12,439 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 00:37:12,439 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-11-21 00:37:12,440 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-21 00:37:12,440 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 00:37:12,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 00:37:12,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-11-21 00:37:12,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-21 00:37:12,441 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 00:37:12,580 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 00:37:12,581 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 00:37:33,312 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 00:37:33,318 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 00:37:33,318 INFO L301 CfgBuilder]: Removed 12 assume(true) statements. [2021-11-21 00:37:33,320 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:37:33 BoogieIcfgContainer [2021-11-21 00:37:33,320 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 00:37:33,322 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 00:37:33,323 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 00:37:33,326 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 00:37:33,327 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 12:37:11" (1/3) ... [2021-11-21 00:37:33,328 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1be698d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:37:33, skipping insertion in model container [2021-11-21 00:37:33,328 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 12:37:12" (2/3) ... [2021-11-21 00:37:33,328 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1be698d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 12:37:33, skipping insertion in model container [2021-11-21 00:37:33,329 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:37:33" (3/3) ... [2021-11-21 00:37:33,330 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0970b.c [2021-11-21 00:37:33,337 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 00:37:33,337 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-21 00:37:33,392 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 00:37:33,400 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-21 00:37:33,400 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-21 00:37:33,414 INFO L276 IsEmpty]: Start isEmpty. Operand has 44 states, 42 states have (on average 1.6904761904761905) internal successors, (71), 43 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:37:33,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-21 00:37:33,419 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:37:33,420 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:37:33,420 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:37:33,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:37:33,425 INFO L85 PathProgramCache]: Analyzing trace with hash -1902195216, now seen corresponding path program 1 times [2021-11-21 00:37:33,434 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:37:33,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [56751787] [2021-11-21 00:37:33,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:37:33,435 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:37:33,436 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d98814ab-9185-4d1c-b78f-74114b5f58cb/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:37:33,436 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d98814ab-9185-4d1c-b78f-74114b5f58cb/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:37:33,439 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d98814ab-9185-4d1c-b78f-74114b5f58cb/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-21 00:37:34,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:37:34,143 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-21 00:37:34,147 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:37:34,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:37:34,236 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:37:34,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:37:34,322 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:37:34,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [56751787] [2021-11-21 00:37:34,322 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [56751787] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:37:34,323 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:37:34,323 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-21 00:37:34,324 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424712938] [2021-11-21 00:37:34,326 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:37:34,331 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-21 00:37:34,331 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:37:34,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-21 00:37:34,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-21 00:37:34,373 INFO L87 Difference]: Start difference. First operand has 44 states, 42 states have (on average 1.6904761904761905) internal successors, (71), 43 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:37:34,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:37:34,409 INFO L93 Difference]: Finished difference Result 86 states and 140 transitions. [2021-11-21 00:37:34,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-21 00:37:34,411 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-11-21 00:37:34,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:37:34,429 INFO L225 Difference]: With dead ends: 86 [2021-11-21 00:37:34,429 INFO L226 Difference]: Without dead ends: 41 [2021-11-21 00:37:34,432 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-21 00:37:34,438 INFO L933 BasicCegarLoop]: 58 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, 58 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-21 00:37:34,439 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-21 00:37:34,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2021-11-21 00:37:34,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2021-11-21 00:37:34,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 40 states have (on average 1.375) internal successors, (55), 40 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:37:34,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 55 transitions. [2021-11-21 00:37:34,488 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 55 transitions. Word has length 9 [2021-11-21 00:37:34,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:37:34,489 INFO L470 AbstractCegarLoop]: Abstraction has 41 states and 55 transitions. [2021-11-21 00:37:34,489 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:37:34,490 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 55 transitions. [2021-11-21 00:37:34,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-21 00:37:34,492 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:37:34,492 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:37:34,520 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d98814ab-9185-4d1c-b78f-74114b5f58cb/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-21 00:37:34,709 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d98814ab-9185-4d1c-b78f-74114b5f58cb/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:37:34,710 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:37:34,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:37:34,712 INFO L85 PathProgramCache]: Analyzing trace with hash 1486155597, now seen corresponding path program 1 times [2021-11-21 00:37:34,713 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:37:34,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [705486858] [2021-11-21 00:37:34,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:37:34,714 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:37:34,715 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d98814ab-9185-4d1c-b78f-74114b5f58cb/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:37:34,721 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d98814ab-9185-4d1c-b78f-74114b5f58cb/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:37:34,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d98814ab-9185-4d1c-b78f-74114b5f58cb/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-21 00:37:35,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:37:35,421 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-21 00:37:35,424 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:37:35,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:37:35,735 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:37:36,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:37:36,058 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:37:36,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [705486858] [2021-11-21 00:37:36,059 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [705486858] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:37:36,059 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:37:36,059 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-21 00:37:36,059 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032951073] [2021-11-21 00:37:36,060 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:37:36,061 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-21 00:37:36,061 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:37:36,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-21 00:37:36,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-21 00:37:36,063 INFO L87 Difference]: Start difference. First operand 41 states and 55 transitions. Second operand has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:37:36,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:37:36,969 INFO L93 Difference]: Finished difference Result 52 states and 64 transitions. [2021-11-21 00:37:36,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-21 00:37:36,977 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-11-21 00:37:36,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:37:36,978 INFO L225 Difference]: With dead ends: 52 [2021-11-21 00:37:36,978 INFO L226 Difference]: Without dead ends: 47 [2021-11-21 00:37:36,979 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-21 00:37:36,980 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 39 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 20 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-11-21 00:37:36,981 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 152 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 8 Invalid, 0 Unknown, 20 Unchecked, 0.9s Time] [2021-11-21 00:37:36,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2021-11-21 00:37:36,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 41. [2021-11-21 00:37:36,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 40 states have (on average 1.35) internal successors, (54), 40 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:37:36,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 54 transitions. [2021-11-21 00:37:36,991 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 54 transitions. Word has length 10 [2021-11-21 00:37:36,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:37:36,992 INFO L470 AbstractCegarLoop]: Abstraction has 41 states and 54 transitions. [2021-11-21 00:37:36,992 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:37:36,993 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 54 transitions. [2021-11-21 00:37:36,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-21 00:37:36,993 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:37:36,994 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:37:37,014 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d98814ab-9185-4d1c-b78f-74114b5f58cb/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-21 00:37:37,201 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d98814ab-9185-4d1c-b78f-74114b5f58cb/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:37:37,202 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:37:37,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:37:37,202 INFO L85 PathProgramCache]: Analyzing trace with hash -1244066674, now seen corresponding path program 1 times [2021-11-21 00:37:37,203 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:37:37,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1657711052] [2021-11-21 00:37:37,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:37:37,204 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:37:37,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d98814ab-9185-4d1c-b78f-74114b5f58cb/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:37:37,205 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d98814ab-9185-4d1c-b78f-74114b5f58cb/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:37:37,234 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d98814ab-9185-4d1c-b78f-74114b5f58cb/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-21 00:37:37,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:37:37,908 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-21 00:37:37,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:37:38,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:37:38,607 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:37:53,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:37:53,761 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:37:53,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1657711052] [2021-11-21 00:37:53,761 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1657711052] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:37:53,762 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:37:53,762 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-11-21 00:37:53,762 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329019617] [2021-11-21 00:37:53,762 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:37:53,763 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-21 00:37:53,763 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:37:53,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-21 00:37:53,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-11-21 00:37:53,764 INFO L87 Difference]: Start difference. First operand 41 states and 54 transitions. Second operand has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:37:58,399 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 00:38:01,381 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.39s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 00:38:03,602 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 00:38:06,200 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 00:38:08,305 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 00:38:09,525 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 00:38:11,638 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 00:38:13,641 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 00:38:15,645 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 00:38:17,756 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 00:38:19,758 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 00:38:21,761 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 00:38:23,912 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 00:38:25,918 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 00:38:27,921 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 00:38:29,631 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 00:38:31,667 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 00:38:33,823 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 00:38:35,827 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 00:38:37,832 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 00:38:37,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:38:37,833 INFO L93 Difference]: Finished difference Result 54 states and 65 transitions. [2021-11-21 00:38:37,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-21 00:38:37,901 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-21 00:38:37,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:38:37,902 INFO L225 Difference]: With dead ends: 54 [2021-11-21 00:38:37,902 INFO L226 Difference]: Without dead ends: 49 [2021-11-21 00:38:37,902 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 9.8s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-11-21 00:38:37,904 INFO L933 BasicCegarLoop]: 37 mSDtfsCounter, 48 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 2 mSolverCounterUnsat, 18 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 42.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 18 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 43.7s IncrementalHoareTripleChecker+Time [2021-11-21 00:38:37,905 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 216 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 83 Invalid, 18 Unknown, 0 Unchecked, 43.7s Time] [2021-11-21 00:38:37,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2021-11-21 00:38:37,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 41. [2021-11-21 00:38:37,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 40 states have (on average 1.325) internal successors, (53), 40 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:38:37,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 53 transitions. [2021-11-21 00:38:37,915 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 53 transitions. Word has length 11 [2021-11-21 00:38:37,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:38:37,915 INFO L470 AbstractCegarLoop]: Abstraction has 41 states and 53 transitions. [2021-11-21 00:38:37,915 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.1) internal successors, (21), 10 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:38:37,916 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 53 transitions. [2021-11-21 00:38:37,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-21 00:38:37,916 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 00:38:37,917 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 00:38:37,941 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d98814ab-9185-4d1c-b78f-74114b5f58cb/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-21 00:38:38,129 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d98814ab-9185-4d1c-b78f-74114b5f58cb/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:38:38,129 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 00:38:38,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 00:38:38,130 INFO L85 PathProgramCache]: Analyzing trace with hash 23006450, now seen corresponding path program 1 times [2021-11-21 00:38:38,130 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 00:38:38,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1637265620] [2021-11-21 00:38:38,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 00:38:38,131 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 00:38:38,131 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d98814ab-9185-4d1c-b78f-74114b5f58cb/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 00:38:38,132 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d98814ab-9185-4d1c-b78f-74114b5f58cb/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 00:38:38,139 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d98814ab-9185-4d1c-b78f-74114b5f58cb/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-21 00:38:38,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 00:38:38,548 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-21 00:38:38,549 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 00:38:38,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:38:38,756 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 00:38:39,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 00:38:39,101 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 00:38:39,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1637265620] [2021-11-21 00:38:39,101 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1637265620] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 00:38:39,101 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 00:38:39,101 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-21 00:38:39,102 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514782560] [2021-11-21 00:38:39,102 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 00:38:39,102 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-21 00:38:39,102 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 00:38:39,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-21 00:38:39,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-21 00:38:39,103 INFO L87 Difference]: Start difference. First operand 41 states and 53 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) [2021-11-21 00:38:39,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 00:38:39,118 INFO L93 Difference]: Finished difference Result 41 states and 53 transitions. [2021-11-21 00:38:39,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 00:38:39,119 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 12 [2021-11-21 00:38:39,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 00:38:39,120 INFO L225 Difference]: With dead ends: 41 [2021-11-21 00:38:39,120 INFO L226 Difference]: Without dead ends: 0 [2021-11-21 00:38:39,120 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-21 00:38:39,122 INFO L933 BasicCegarLoop]: 4 mSDtfsCounter, 0 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-21 00:38:39,122 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 8 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 2 Unchecked, 0.0s Time] [2021-11-21 00:38:39,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-21 00:38:39,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-21 00:38:39,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 00:38:39,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-21 00:38:39,124 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2021-11-21 00:38:39,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 00:38:39,124 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-21 00:38:39,124 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) [2021-11-21 00:38:39,125 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-21 00:38:39,125 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-21 00:38:39,128 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-21 00:38:39,156 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d98814ab-9185-4d1c-b78f-74114b5f58cb/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-21 00:38:39,329 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d98814ab-9185-4d1c-b78f-74114b5f58cb/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 00:38:39,331 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-21 00:38:39,595 INFO L858 garLoopResultBuilder]: For program point L93(lines 93 96) no Hoare annotation was computed. [2021-11-21 00:38:39,595 INFO L858 garLoopResultBuilder]: For program point L60(lines 60 65) no Hoare annotation was computed. [2021-11-21 00:38:39,596 INFO L858 garLoopResultBuilder]: For program point L118(lines 118 119) no Hoare annotation was computed. [2021-11-21 00:38:39,596 INFO L858 garLoopResultBuilder]: For program point L85(lines 85 97) no Hoare annotation was computed. [2021-11-21 00:38:39,596 INFO L854 garLoopResultBuilder]: At program point L143(lines 107 144) the Hoare annotation is: (and (= |ULTIMATE.start___ieee754_log10f_#res#1| (fp.div roundNearestTiesToEven (let ((.cse0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24)))) (fp.sub roundNearestTiesToEven .cse0 .cse0)) ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53)))) (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ~zero~0) (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24)) |ULTIMATE.start___ieee754_log10f_~x#1|) (= currentRoundingMode roundNearestTiesToEven)) [2021-11-21 00:38:39,597 INFO L858 garLoopResultBuilder]: For program point L160(lines 160 163) no Hoare annotation was computed. [2021-11-21 00:38:39,597 INFO L858 garLoopResultBuilder]: For program point L127-1(lines 127 131) no Hoare annotation was computed. [2021-11-21 00:38:39,597 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-21 00:38:39,597 INFO L854 garLoopResultBuilder]: At program point L127-2(lines 127 131) the Hoare annotation is: false [2021-11-21 00:38:39,597 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-21 00:38:39,598 INFO L858 garLoopResultBuilder]: For program point L111-1(lines 111 115) no Hoare annotation was computed. [2021-11-21 00:38:39,598 INFO L854 garLoopResultBuilder]: At program point L111-2(lines 111 115) the Hoare annotation is: (and (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ~zero~0) (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24)) |ULTIMATE.start___ieee754_log10f_~x#1|)) (= currentRoundingMode roundNearestTiesToEven)) [2021-11-21 00:38:39,598 INFO L858 garLoopResultBuilder]: For program point L111-3(lines 111 115) no Hoare annotation was computed. [2021-11-21 00:38:39,598 INFO L858 garLoopResultBuilder]: For program point L37(lines 37 38) no Hoare annotation was computed. [2021-11-21 00:38:39,599 INFO L858 garLoopResultBuilder]: For program point L161(line 161) no Hoare annotation was computed. [2021-11-21 00:38:39,599 INFO L858 garLoopResultBuilder]: For program point L120(lines 120 121) no Hoare annotation was computed. [2021-11-21 00:38:39,599 INFO L858 garLoopResultBuilder]: For program point L87(lines 87 91) no Hoare annotation was computed. [2021-11-21 00:38:39,599 INFO L858 garLoopResultBuilder]: For program point L137-1(lines 137 141) no Hoare annotation was computed. [2021-11-21 00:38:39,599 INFO L854 garLoopResultBuilder]: At program point L137-2(lines 137 141) the Hoare annotation is: false [2021-11-21 00:38:39,600 INFO L858 garLoopResultBuilder]: For program point L137-3(lines 137 141) no Hoare annotation was computed. [2021-11-21 00:38:39,600 INFO L854 garLoopResultBuilder]: At program point L96(lines 22 98) the Hoare annotation is: false [2021-11-21 00:38:39,600 INFO L858 garLoopResultBuilder]: For program point L39(lines 39 47) no Hoare annotation was computed. [2021-11-21 00:38:39,600 INFO L858 garLoopResultBuilder]: For program point L39-1(lines 39 47) no Hoare annotation was computed. [2021-11-21 00:38:39,601 INFO L858 garLoopResultBuilder]: For program point L122(lines 122 123) no Hoare annotation was computed. [2021-11-21 00:38:39,601 INFO L854 garLoopResultBuilder]: At program point L147(line 147) the Hoare annotation is: (and (= |ULTIMATE.start___ieee754_log10f_#res#1| (fp.div roundNearestTiesToEven (let ((.cse0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24)))) (fp.sub roundNearestTiesToEven .cse0 .cse0)) ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53)))) (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ~zero~0) (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24)) |ULTIMATE.start___ieee754_log10f_~x#1|) (= currentRoundingMode roundNearestTiesToEven) (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res#1|)) [2021-11-21 00:38:39,601 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-21 00:38:39,602 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 161) no Hoare annotation was computed. [2021-11-21 00:38:39,602 INFO L861 garLoopResultBuilder]: At program point L165(lines 149 166) the Hoare annotation is: true [2021-11-21 00:38:39,602 INFO L858 garLoopResultBuilder]: For program point L33(lines 33 34) no Hoare annotation was computed. [2021-11-21 00:38:39,602 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-21 00:38:39,602 INFO L858 garLoopResultBuilder]: For program point L124(lines 124 132) no Hoare annotation was computed. [2021-11-21 00:38:39,603 INFO L858 garLoopResultBuilder]: For program point L124-1(lines 124 132) no Hoare annotation was computed. [2021-11-21 00:38:39,603 INFO L858 garLoopResultBuilder]: For program point L58(lines 58 74) no Hoare annotation was computed. [2021-11-21 00:38:39,603 INFO L858 garLoopResultBuilder]: For program point L42-1(lines 42 46) no Hoare annotation was computed. [2021-11-21 00:38:39,603 INFO L854 garLoopResultBuilder]: At program point L42-2(lines 42 46) the Hoare annotation is: false [2021-11-21 00:38:39,603 INFO L858 garLoopResultBuilder]: For program point L59(lines 59 66) no Hoare annotation was computed. [2021-11-21 00:38:39,603 INFO L858 garLoopResultBuilder]: For program point L26-1(lines 26 30) no Hoare annotation was computed. [2021-11-21 00:38:39,603 INFO L854 garLoopResultBuilder]: At program point L26-2(lines 26 30) the Hoare annotation is: false [2021-11-21 00:38:39,604 INFO L858 garLoopResultBuilder]: For program point L26-3(lines 26 30) no Hoare annotation was computed. [2021-11-21 00:38:39,604 INFO L858 garLoopResultBuilder]: For program point L51-1(lines 51 55) no Hoare annotation was computed. [2021-11-21 00:38:39,604 INFO L854 garLoopResultBuilder]: At program point L51-2(lines 51 55) the Hoare annotation is: false [2021-11-21 00:38:39,604 INFO L858 garLoopResultBuilder]: For program point L51-3(lines 51 55) no Hoare annotation was computed. [2021-11-21 00:38:39,604 INFO L858 garLoopResultBuilder]: For program point L68(lines 68 73) no Hoare annotation was computed. [2021-11-21 00:38:39,604 INFO L858 garLoopResultBuilder]: For program point L35(lines 35 36) no Hoare annotation was computed. [2021-11-21 00:38:39,607 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2021-11-21 00:38:39,609 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-21 00:38:39,619 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-21 00:38:39,620 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-21 00:38:39,622 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:38:39,624 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-21 00:38:39,625 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-21 00:38:39,625 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:38:39,626 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:38:39,626 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:38:39,635 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:38:39,635 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:38:39,636 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:38:39,636 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:38:39,636 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:38:39,636 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:38:39,637 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:38:39,637 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:38:39,638 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:38:39,638 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:38:39,638 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:38:39,638 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:38:39,639 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:38:39,639 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:38:39,640 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:38:39,640 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:38:39,641 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:38:39,641 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:38:39,641 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:38:39,641 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:38:39,642 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:38:39,642 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:38:39,643 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:38:39,643 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:38:39,643 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:38:39,644 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:38:39,644 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:38:39,644 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:38:39,644 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:38:39,644 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:38:39,645 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 12:38:39 BoogieIcfgContainer [2021-11-21 00:38:39,645 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-21 00:38:39,646 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-21 00:38:39,646 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-21 00:38:39,647 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-21 00:38:39,647 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 12:37:33" (3/4) ... [2021-11-21 00:38:39,650 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-21 00:38:39,664 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2021-11-21 00:38:39,665 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-11-21 00:38:39,666 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-21 00:38:39,666 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-21 00:38:39,694 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE()) == x)) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2021-11-21 00:38:39,695 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\result == ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero) && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE()) == x) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2021-11-21 00:38:39,695 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((\result == ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero) && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE()) == x) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && 1bv32 == \result [2021-11-21 00:38:39,727 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d98814ab-9185-4d1c-b78f-74114b5f58cb/bin/utaipan-TEXQjIfE4P/witness.graphml [2021-11-21 00:38:39,727 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-21 00:38:39,728 INFO L158 Benchmark]: Toolchain (without parser) took 87971.10ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 30.5MB in the beginning and 39.2MB in the end (delta: -8.7MB). Peak memory consumption was 3.3MB. Max. memory is 16.1GB. [2021-11-21 00:38:39,729 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 54.5MB. Free memory was 34.6MB in the beginning and 34.5MB in the end (delta: 38.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 00:38:39,729 INFO L158 Benchmark]: CACSL2BoogieTranslator took 417.50ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 30.4MB in the beginning and 47.1MB in the end (delta: -16.8MB). Peak memory consumption was 7.7MB. Max. memory is 16.1GB. [2021-11-21 00:38:39,730 INFO L158 Benchmark]: Boogie Procedure Inliner took 84.30ms. Allocated memory is still 67.1MB. Free memory was 46.9MB in the beginning and 44.8MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-21 00:38:39,730 INFO L158 Benchmark]: Boogie Preprocessor took 60.22ms. Allocated memory is still 67.1MB. Free memory was 44.6MB in the beginning and 42.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-21 00:38:39,730 INFO L158 Benchmark]: RCFGBuilder took 20995.70ms. Allocated memory is still 67.1MB. Free memory was 42.6MB in the beginning and 40.6MB in the end (delta: 2.1MB). Peak memory consumption was 15.1MB. Max. memory is 16.1GB. [2021-11-21 00:38:39,731 INFO L158 Benchmark]: TraceAbstraction took 66323.03ms. Allocated memory is still 67.1MB. Free memory was 40.1MB in the beginning and 45.0MB in the end (delta: -4.9MB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB. [2021-11-21 00:38:39,731 INFO L158 Benchmark]: Witness Printer took 81.47ms. Allocated memory is still 67.1MB. Free memory was 45.0MB in the beginning and 39.2MB in the end (delta: 5.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-21 00:38:39,734 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 54.5MB. Free memory was 34.6MB in the beginning and 34.5MB in the end (delta: 38.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 417.50ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 30.4MB in the beginning and 47.1MB in the end (delta: -16.8MB). Peak memory consumption was 7.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 84.30ms. Allocated memory is still 67.1MB. Free memory was 46.9MB in the beginning and 44.8MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.22ms. Allocated memory is still 67.1MB. Free memory was 44.6MB in the beginning and 42.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 20995.70ms. Allocated memory is still 67.1MB. Free memory was 42.6MB in the beginning and 40.6MB in the end (delta: 2.1MB). Peak memory consumption was 15.1MB. Max. memory is 16.1GB. * TraceAbstraction took 66323.03ms. Allocated memory is still 67.1MB. Free memory was 40.1MB in the beginning and 45.0MB in the end (delta: -4.9MB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB. * Witness Printer took 81.47ms. Allocated memory is still 67.1MB. Free memory was 45.0MB in the beginning and 39.2MB in the end (delta: 5.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[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 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 Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 161]: 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, 44 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 66.2s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 45.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 18 mSolverCounterUnknown, 87 SdHoareTripleChecker+Valid, 44.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 87 mSDsluCounter, 434 SdHoareTripleChecker+Invalid, 43.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 22 IncrementalHoareTripleChecker+Unchecked, 281 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 92 IncrementalHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 153 mSDtfsCounter, 92 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 79 GetRequests, 59 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 10.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred in iteration=0, InterpolantAutomatonStates: 18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 14 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 10 PreInvPairs, 14 NumberOfFragments, 111 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 9 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 2.2s SatisfiabilityAnalysisTime, 17.4s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 76 ConstructedInterpolants, 11 QuantifiedInterpolants, 540 SizeOfPredicates, 24 NumberOfNonLiveVariables, 207 ConjunctsInSsa, 27 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 51]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 149]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 127]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 111]: Loop Invariant [2021-11-21 00:38:39,747 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-21 00:38:39,747 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-21 00:38:39,747 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:38:39,748 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-21 00:38:39,748 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-21 00:38:39,748 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE()) == x)) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 42]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 107]: Loop Invariant [2021-11-21 00:38:39,749 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:38:39,749 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:38:39,749 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:38:39,750 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:38:39,750 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:38:39,750 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:38:39,750 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:38:39,750 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:38:39,751 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:38:39,751 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:38:39,751 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:38:39,751 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:38:39,752 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:38:39,752 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:38:39,752 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:38:39,752 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((\result == ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero) && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE()) == x) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 137]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 147]: Loop Invariant [2021-11-21 00:38:39,753 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:38:39,753 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:38:39,754 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:38:39,754 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:38:39,754 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:38:39,754 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:38:39,754 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:38:39,755 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:38:39,755 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:38:39,755 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:38:39,755 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:38:39,756 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:38:39,756 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:38:39,756 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:38:39,756 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 00:38:39,756 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (((\result == ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero) && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE()) == x) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && 1bv32 == \result RESULT: Ultimate proved your program to be correct! [2021-11-21 00:38:39,903 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d98814ab-9185-4d1c-b78f-74114b5f58cb/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE