./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1012b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00fb72fe-988a-4a21-8af4-62aa5c02f6d4/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00fb72fe-988a-4a21-8af4-62aa5c02f6d4/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00fb72fe-988a-4a21-8af4-62aa5c02f6d4/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00fb72fe-988a-4a21-8af4-62aa5c02f6d4/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1012b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00fb72fe-988a-4a21-8af4-62aa5c02f6d4/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00fb72fe-988a-4a21-8af4-62aa5c02f6d4/bin/utaipan-UbGMyvGFUs --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 e833158a76fcb6c2772449e786bfe7e91a3ec1f9488e1d61542cc7f9c3dece0e --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:54:57,366 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:54:57,369 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:54:57,402 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:54:57,402 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:54:57,404 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:54:57,406 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:54:57,409 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:54:57,411 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:54:57,412 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:54:57,414 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:54:57,415 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:54:57,416 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:54:57,417 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:54:57,419 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:54:57,420 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:54:57,422 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:54:57,423 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:54:57,425 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:54:57,428 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:54:57,430 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:54:57,432 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:54:57,434 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:54:57,435 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:54:57,439 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:54:57,440 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:54:57,440 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:54:57,441 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:54:57,442 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:54:57,443 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:54:57,444 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:54:57,445 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:54:57,446 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:54:57,447 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:54:57,448 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:54:57,449 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:54:57,450 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:54:57,450 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:54:57,451 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:54:57,452 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:54:57,453 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:54:57,454 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00fb72fe-988a-4a21-8af4-62aa5c02f6d4/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-19 14:54:57,481 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:54:57,481 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:54:57,482 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:54:57,483 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:54:57,483 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:54:57,484 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:54:57,484 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:54:57,485 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 14:54:57,485 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:54:57,486 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:54:57,486 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 14:54:57,486 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 14:54:57,487 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:54:57,487 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 14:54:57,488 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 14:54:57,488 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 14:54:57,489 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:54:57,490 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 14:54:57,490 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 14:54:57,490 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 14:54:57,491 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:54:57,491 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:54:57,492 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:54:57,492 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:54:57,492 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:54:57,493 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 14:54:57,493 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:54:57,494 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:54:57,494 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:54:57,495 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:54:57,495 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:54:57,495 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:54:57,495 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:54:57,496 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:54:57,496 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:54:57,496 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 14:54:57,496 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 14:54:57,497 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:54:57,497 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:54:57,497 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:54:57,497 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_00fb72fe-988a-4a21-8af4-62aa5c02f6d4/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00fb72fe-988a-4a21-8af4-62aa5c02f6d4/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e833158a76fcb6c2772449e786bfe7e91a3ec1f9488e1d61542cc7f9c3dece0e [2021-11-19 14:54:57,751 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:54:57,775 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:54:57,778 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:54:57,779 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:54:57,780 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:54:57,782 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00fb72fe-988a-4a21-8af4-62aa5c02f6d4/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/float-newlib/float_req_bl_1012b.c [2021-11-19 14:54:57,845 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00fb72fe-988a-4a21-8af4-62aa5c02f6d4/bin/utaipan-UbGMyvGFUs/data/d5896d489/0359aa7951c446f49cc325d37110dbad/FLAG1b826c749 [2021-11-19 14:54:58,363 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:54:58,364 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00fb72fe-988a-4a21-8af4-62aa5c02f6d4/sv-benchmarks/c/float-newlib/float_req_bl_1012b.c [2021-11-19 14:54:58,370 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00fb72fe-988a-4a21-8af4-62aa5c02f6d4/bin/utaipan-UbGMyvGFUs/data/d5896d489/0359aa7951c446f49cc325d37110dbad/FLAG1b826c749 [2021-11-19 14:54:58,854 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00fb72fe-988a-4a21-8af4-62aa5c02f6d4/bin/utaipan-UbGMyvGFUs/data/d5896d489/0359aa7951c446f49cc325d37110dbad [2021-11-19 14:54:58,857 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:54:58,859 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:54:58,863 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:54:58,866 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:54:58,869 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:54:58,870 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:54:58" (1/1) ... [2021-11-19 14:54:58,872 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c0d3f5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:54:58, skipping insertion in model container [2021-11-19 14:54:58,872 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:54:58" (1/1) ... [2021-11-19 14:54:58,880 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:54:58,895 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:54:59,084 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_00fb72fe-988a-4a21-8af4-62aa5c02f6d4/sv-benchmarks/c/float-newlib/float_req_bl_1012b.c[1158,1171] [2021-11-19 14:54:59,087 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:54:59,097 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 14:54:59,119 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_00fb72fe-988a-4a21-8af4-62aa5c02f6d4/sv-benchmarks/c/float-newlib/float_req_bl_1012b.c[1158,1171] [2021-11-19 14:54:59,120 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:54:59,136 INFO L208 MainTranslator]: Completed translation [2021-11-19 14:54:59,137 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:54:59 WrapperNode [2021-11-19 14:54:59,137 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:54:59,139 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 14:54:59,139 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 14:54:59,139 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 14:54:59,151 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:54:59" (1/1) ... [2021-11-19 14:54:59,163 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:54:59" (1/1) ... [2021-11-19 14:54:59,197 INFO L137 Inliner]: procedures = 16, calls = 21, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 66 [2021-11-19 14:54:59,198 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 14:54:59,199 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 14:54:59,200 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 14:54:59,200 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 14:54:59,210 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:54:59" (1/1) ... [2021-11-19 14:54:59,211 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:54:59" (1/1) ... [2021-11-19 14:54:59,228 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:54:59" (1/1) ... [2021-11-19 14:54:59,230 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:54:59" (1/1) ... [2021-11-19 14:54:59,237 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:54:59" (1/1) ... [2021-11-19 14:54:59,246 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:54:59" (1/1) ... [2021-11-19 14:54:59,253 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:54:59" (1/1) ... [2021-11-19 14:54:59,261 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 14:54:59,265 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 14:54:59,265 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 14:54:59,266 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 14:54:59,267 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:54:59" (1/1) ... [2021-11-19 14:54:59,276 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:54:59,289 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00fb72fe-988a-4a21-8af4-62aa5c02f6d4/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:54:59,309 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00fb72fe-988a-4a21-8af4-62aa5c02f6d4/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 14:54:59,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00fb72fe-988a-4a21-8af4-62aa5c02f6d4/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 14:54:59,365 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 14:54:59,365 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-19 14:54:59,366 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 14:54:59,366 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-11-19 14:54:59,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-19 14:54:59,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-11-19 14:54:59,367 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 14:54:59,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 14:54:59,368 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-19 14:54:59,368 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 14:54:59,491 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 14:54:59,493 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 14:54:59,702 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 14:54:59,718 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 14:54:59,719 INFO L301 CfgBuilder]: Removed 6 assume(true) statements. [2021-11-19 14:54:59,721 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:54:59 BoogieIcfgContainer [2021-11-19 14:54:59,722 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 14:54:59,724 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 14:54:59,724 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 14:54:59,728 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 14:54:59,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 02:54:58" (1/3) ... [2021-11-19 14:54:59,729 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45573005 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:54:59, skipping insertion in model container [2021-11-19 14:54:59,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:54:59" (2/3) ... [2021-11-19 14:54:59,730 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45573005 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:54:59, skipping insertion in model container [2021-11-19 14:54:59,730 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:54:59" (3/3) ... [2021-11-19 14:54:59,731 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1012b.c [2021-11-19 14:54:59,737 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 14:54:59,738 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-19 14:54:59,791 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 14:54:59,800 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 [2021-11-19 14:54:59,800 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-19 14:54:59,816 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 13 states have internal predecessors, (20), 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) [2021-11-19 14:54:59,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-19 14:54:59,823 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:54:59,824 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:54:59,824 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:54:59,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:54:59,831 INFO L85 PathProgramCache]: Analyzing trace with hash -1051333689, now seen corresponding path program 1 times [2021-11-19 14:54:59,843 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 14:54:59,843 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37314475] [2021-11-19 14:54:59,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:54:59,845 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 14:54:59,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:54:59,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:54:59,991 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 14:54:59,991 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37314475] [2021-11-19 14:54:59,992 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37314475] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 14:54:59,992 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:54:59,993 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-19 14:54:59,995 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889909545] [2021-11-19 14:54:59,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:55:00,001 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-19 14:55:00,002 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 14:55:00,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-19 14:55:00,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-19 14:55:00,039 INFO L87 Difference]: Start difference. First operand has 14 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 13 states have internal predecessors, (20), 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 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2021-11-19 14:55:00,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:55:00,089 INFO L93 Difference]: Finished difference Result 27 states and 39 transitions. [2021-11-19 14:55:00,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-19 14:55:00,093 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 8 [2021-11-19 14:55:00,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:55:00,102 INFO L225 Difference]: With dead ends: 27 [2021-11-19 14:55:00,102 INFO L226 Difference]: Without dead ends: 12 [2021-11-19 14:55:00,107 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 [2021-11-19 14:55:00,112 INFO L933 BasicCegarLoop]: 9 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, 9 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 [2021-11-19 14:55:00,113 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 9 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:55:00,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2021-11-19 14:55:00,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2021-11-19 14:55:00,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0) internal successors, (11), 11 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:55:00,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2021-11-19 14:55:00,165 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 8 [2021-11-19 14:55:00,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:55:00,166 INFO L470 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2021-11-19 14:55:00,168 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2021-11-19 14:55:00,168 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2021-11-19 14:55:00,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-19 14:55:00,169 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:55:00,170 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:55:00,170 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-19 14:55:00,171 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:55:00,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:55:00,176 INFO L85 PathProgramCache]: Analyzing trace with hash 604616637, now seen corresponding path program 1 times [2021-11-19 14:55:00,176 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 14:55:00,177 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965758055] [2021-11-19 14:55:00,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:55:00,177 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 14:55:00,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 14:55:00,275 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 14:55:00,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 14:55:00,389 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-19 14:55:00,390 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-19 14:55:00,392 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-19 14:55:00,395 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-19 14:55:00,402 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-19 14:55:00,414 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-19 14:55:00,450 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 02:55:00 BoogieIcfgContainer [2021-11-19 14:55:00,450 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-19 14:55:00,451 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-19 14:55:00,451 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-19 14:55:00,452 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-19 14:55:00,452 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:54:59" (3/4) ... [2021-11-19 14:55:00,456 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-19 14:55:00,456 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-19 14:55:00,457 INFO L158 Benchmark]: Toolchain (without parser) took 1597.85ms. Allocated memory was 109.1MB in the beginning and 132.1MB in the end (delta: 23.1MB). Free memory was 79.2MB in the beginning and 98.5MB in the end (delta: -19.2MB). Peak memory consumption was 4.0MB. Max. memory is 16.1GB. [2021-11-19 14:55:00,458 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 109.1MB. Free memory is still 65.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 14:55:00,459 INFO L158 Benchmark]: CACSL2BoogieTranslator took 274.38ms. Allocated memory is still 109.1MB. Free memory was 79.0MB in the beginning and 83.1MB in the end (delta: -4.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-19 14:55:00,459 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.57ms. Allocated memory is still 109.1MB. Free memory was 83.1MB in the beginning and 81.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 14:55:00,460 INFO L158 Benchmark]: Boogie Preprocessor took 64.55ms. Allocated memory is still 109.1MB. Free memory was 81.5MB in the beginning and 80.3MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 14:55:00,461 INFO L158 Benchmark]: RCFGBuilder took 457.04ms. Allocated memory is still 109.1MB. Free memory was 80.0MB in the beginning and 69.6MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-19 14:55:00,462 INFO L158 Benchmark]: TraceAbstraction took 726.80ms. Allocated memory was 109.1MB in the beginning and 132.1MB in the end (delta: 23.1MB). Free memory was 69.1MB in the beginning and 99.2MB in the end (delta: -30.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 14:55:00,462 INFO L158 Benchmark]: Witness Printer took 5.07ms. Allocated memory is still 132.1MB. Free memory is still 98.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 14:55:00,467 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 109.1MB. Free memory is still 65.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 274.38ms. Allocated memory is still 109.1MB. Free memory was 79.0MB in the beginning and 83.1MB in the end (delta: -4.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.57ms. Allocated memory is still 109.1MB. Free memory was 83.1MB in the beginning and 81.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 64.55ms. Allocated memory is still 109.1MB. Free memory was 81.5MB in the beginning and 80.3MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 457.04ms. Allocated memory is still 109.1MB. Free memory was 80.0MB in the beginning and 69.6MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 726.80ms. Allocated memory was 109.1MB in the beginning and 132.1MB in the end (delta: 23.1MB). Free memory was 69.1MB in the beginning and 99.2MB in the end (delta: -30.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.07ms. Allocated memory is still 132.1MB. Free memory is still 98.5MB. 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: 53]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryArithmeticFLOAToperation at line 48, overapproximation of bitwiseAnd at line 36. Possible FailurePath: [L48] float x = -1.0f / 0.0f; [L49] CALL, EXPR fabs_float(x) [L14] __uint32_t ix; VAL [\old(x)=52, x=52] [L16] ieee_float_shape_type gf_u; [L17] gf_u.value = (x) [L18] EXPR gf_u.word [L18] (ix) = gf_u.word [L21] ieee_float_shape_type sf_u; [L22] sf_u.word = (ix & 0x7fffffff) [L23] EXPR sf_u.value [L23] (x) = sf_u.value [L25] return x; [L49] RET, EXPR fabs_float(x) [L49] float res = fabs_float(x); [L52] CALL, EXPR isinf_float(res) [L30] __int32_t ix; VAL [\old(x)=51, x=51] [L32] ieee_float_shape_type gf_u; [L33] gf_u.value = (x) [L34] EXPR gf_u.word [L34] (ix) = gf_u.word [L36] ix &= 0x7fffffff [L37] return ((ix) == 0x7f800000L); [L52] RET, EXPR isinf_float(res) [L52] COND TRUE !isinf_float(res) [L53] reach_error() VAL [res=51, x=52] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, 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, 9 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, 9 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=14occurred 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, 0.0s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 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 [2021-11-19 14:55:00,531 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00fb72fe-988a-4a21-8af4-62aa5c02f6d4/bin/utaipan-UbGMyvGFUs/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_00fb72fe-988a-4a21-8af4-62aa5c02f6d4/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00fb72fe-988a-4a21-8af4-62aa5c02f6d4/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00fb72fe-988a-4a21-8af4-62aa5c02f6d4/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00fb72fe-988a-4a21-8af4-62aa5c02f6d4/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1012b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00fb72fe-988a-4a21-8af4-62aa5c02f6d4/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00fb72fe-988a-4a21-8af4-62aa5c02f6d4/bin/utaipan-UbGMyvGFUs --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 e833158a76fcb6c2772449e786bfe7e91a3ec1f9488e1d61542cc7f9c3dece0e --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:55:02,998 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:55:03,002 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:55:03,060 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:55:03,061 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:55:03,065 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:55:03,067 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:55:03,071 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:55:03,075 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:55:03,083 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:55:03,084 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:55:03,086 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:55:03,087 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:55:03,089 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:55:03,091 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:55:03,096 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:55:03,098 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:55:03,099 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:55:03,101 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:55:03,109 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:55:03,111 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:55:03,112 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:55:03,115 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:55:03,117 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:55:03,126 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:55:03,127 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:55:03,127 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:55:03,129 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:55:03,130 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:55:03,131 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:55:03,132 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:55:03,133 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:55:03,135 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:55:03,136 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:55:03,137 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:55:03,137 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:55:03,138 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:55:03,139 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:55:03,139 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:55:03,141 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:55:03,142 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:55:03,142 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00fb72fe-988a-4a21-8af4-62aa5c02f6d4/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-19 14:55:03,185 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:55:03,185 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:55:03,187 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:55:03,187 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:55:03,187 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:55:03,188 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:55:03,188 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:55:03,188 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:55:03,188 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:55:03,189 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:55:03,191 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:55:03,191 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 14:55:03,191 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 14:55:03,192 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:55:03,192 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:55:03,192 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:55:03,192 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:55:03,192 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:55:03,193 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 14:55:03,193 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 14:55:03,193 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 14:55:03,193 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:55:03,194 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:55:03,194 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:55:03,194 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:55:03,194 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 14:55:03,195 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:55:03,195 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:55:03,195 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:55:03,195 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:55:03,196 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:55:03,196 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-19 14:55:03,196 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 14:55:03,196 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:55:03,197 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:55:03,197 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:55:03,197 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_00fb72fe-988a-4a21-8af4-62aa5c02f6d4/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00fb72fe-988a-4a21-8af4-62aa5c02f6d4/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e833158a76fcb6c2772449e786bfe7e91a3ec1f9488e1d61542cc7f9c3dece0e [2021-11-19 14:55:03,621 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:55:03,647 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:55:03,651 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:55:03,652 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:55:03,655 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:55:03,657 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00fb72fe-988a-4a21-8af4-62aa5c02f6d4/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/float-newlib/float_req_bl_1012b.c [2021-11-19 14:55:03,739 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00fb72fe-988a-4a21-8af4-62aa5c02f6d4/bin/utaipan-UbGMyvGFUs/data/ffe9b979d/6439838083514265ae5da2c82a2cdd6b/FLAG2f02b730a [2021-11-19 14:55:04,236 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:55:04,237 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00fb72fe-988a-4a21-8af4-62aa5c02f6d4/sv-benchmarks/c/float-newlib/float_req_bl_1012b.c [2021-11-19 14:55:04,243 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00fb72fe-988a-4a21-8af4-62aa5c02f6d4/bin/utaipan-UbGMyvGFUs/data/ffe9b979d/6439838083514265ae5da2c82a2cdd6b/FLAG2f02b730a [2021-11-19 14:55:04,610 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00fb72fe-988a-4a21-8af4-62aa5c02f6d4/bin/utaipan-UbGMyvGFUs/data/ffe9b979d/6439838083514265ae5da2c82a2cdd6b [2021-11-19 14:55:04,614 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:55:04,616 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:55:04,620 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:55:04,621 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:55:04,624 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:55:04,625 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:55:04" (1/1) ... [2021-11-19 14:55:04,627 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65af44d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:55:04, skipping insertion in model container [2021-11-19 14:55:04,628 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:55:04" (1/1) ... [2021-11-19 14:55:04,636 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:55:04,654 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:55:04,836 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_00fb72fe-988a-4a21-8af4-62aa5c02f6d4/sv-benchmarks/c/float-newlib/float_req_bl_1012b.c[1158,1171] [2021-11-19 14:55:04,840 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:55:04,856 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 14:55:04,889 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_00fb72fe-988a-4a21-8af4-62aa5c02f6d4/sv-benchmarks/c/float-newlib/float_req_bl_1012b.c[1158,1171] [2021-11-19 14:55:04,892 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:55:04,930 INFO L208 MainTranslator]: Completed translation [2021-11-19 14:55:04,930 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:55:04 WrapperNode [2021-11-19 14:55:04,930 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:55:04,931 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 14:55:04,931 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 14:55:04,932 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 14:55:04,950 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:55:04" (1/1) ... [2021-11-19 14:55:04,974 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:55:04" (1/1) ... [2021-11-19 14:55:04,996 INFO L137 Inliner]: procedures = 19, calls = 21, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 66 [2021-11-19 14:55:04,997 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 14:55:04,997 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 14:55:04,997 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 14:55:04,998 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 14:55:05,004 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:55:04" (1/1) ... [2021-11-19 14:55:05,004 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:55:04" (1/1) ... [2021-11-19 14:55:05,008 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:55:04" (1/1) ... [2021-11-19 14:55:05,009 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:55:04" (1/1) ... [2021-11-19 14:55:05,016 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:55:04" (1/1) ... [2021-11-19 14:55:05,020 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:55:04" (1/1) ... [2021-11-19 14:55:05,022 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:55:04" (1/1) ... [2021-11-19 14:55:05,026 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 14:55:05,027 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 14:55:05,027 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 14:55:05,027 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 14:55:05,028 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:55:04" (1/1) ... [2021-11-19 14:55:05,043 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:55:05,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00fb72fe-988a-4a21-8af4-62aa5c02f6d4/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:55:05,070 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00fb72fe-988a-4a21-8af4-62aa5c02f6d4/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 14:55:05,080 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00fb72fe-988a-4a21-8af4-62aa5c02f6d4/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 14:55:05,113 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 14:55:05,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 14:55:05,113 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-19 14:55:05,114 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-11-19 14:55:05,114 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-19 14:55:05,114 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 14:55:05,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 14:55:05,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-11-19 14:55:05,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-19 14:55:05,114 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-19 14:55:05,185 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 14:55:05,187 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 14:55:05,330 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 14:55:05,336 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 14:55:05,336 INFO L301 CfgBuilder]: Removed 6 assume(true) statements. [2021-11-19 14:55:05,338 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:55:05 BoogieIcfgContainer [2021-11-19 14:55:05,338 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 14:55:05,340 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 14:55:05,340 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 14:55:05,343 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 14:55:05,343 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 02:55:04" (1/3) ... [2021-11-19 14:55:05,344 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c477e50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:55:05, skipping insertion in model container [2021-11-19 14:55:05,344 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:55:04" (2/3) ... [2021-11-19 14:55:05,344 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c477e50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:55:05, skipping insertion in model container [2021-11-19 14:55:05,344 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:55:05" (3/3) ... [2021-11-19 14:55:05,347 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1012b.c [2021-11-19 14:55:05,354 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 14:55:05,354 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-19 14:55:05,400 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 14:55:05,407 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 [2021-11-19 14:55:05,407 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-19 14:55:05,426 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 16 states have (on average 1.5) internal successors, (24), 17 states have internal predecessors, (24), 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) [2021-11-19 14:55:05,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-19 14:55:05,442 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:55:05,443 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:55:05,443 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:55:05,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:55:05,454 INFO L85 PathProgramCache]: Analyzing trace with hash -969083750, now seen corresponding path program 1 times [2021-11-19 14:55:05,466 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:55:05,468 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1646154535] [2021-11-19 14:55:05,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:55:05,469 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:55:05,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00fb72fe-988a-4a21-8af4-62aa5c02f6d4/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:55:05,488 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00fb72fe-988a-4a21-8af4-62aa5c02f6d4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:55:05,493 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00fb72fe-988a-4a21-8af4-62aa5c02f6d4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 14:55:05,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:55:05,564 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-19 14:55:05,568 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:55:05,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:55:05,625 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:55:05,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:55:05,666 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:55:05,666 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1646154535] [2021-11-19 14:55:05,667 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1646154535] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:55:05,667 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:55:05,668 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-19 14:55:05,669 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136712983] [2021-11-19 14:55:05,670 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:55:05,674 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-19 14:55:05,674 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:55:05,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-19 14:55:05,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-19 14:55:05,702 INFO L87 Difference]: Start difference. First operand has 18 states, 16 states have (on average 1.5) internal successors, (24), 17 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:55:05,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:55:05,718 INFO L93 Difference]: Finished difference Result 34 states and 46 transitions. [2021-11-19 14:55:05,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-19 14:55:05,720 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-19 14:55:05,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:55:05,728 INFO L225 Difference]: With dead ends: 34 [2021-11-19 14:55:05,728 INFO L226 Difference]: Without dead ends: 15 [2021-11-19 14:55:05,731 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-19 14:55:05,736 INFO L933 BasicCegarLoop]: 17 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, 17 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 [2021-11-19 14:55:05,737 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:55:05,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-11-19 14:55:05,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2021-11-19 14:55:05,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.0) internal successors, (14), 14 states have internal predecessors, (14), 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) [2021-11-19 14:55:05,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 14 transitions. [2021-11-19 14:55:05,774 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 14 transitions. Word has length 11 [2021-11-19 14:55:05,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:55:05,774 INFO L470 AbstractCegarLoop]: Abstraction has 15 states and 14 transitions. [2021-11-19 14:55:05,775 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:55:05,775 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 14 transitions. [2021-11-19 14:55:05,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-19 14:55:05,776 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:55:05,776 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:55:05,804 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00fb72fe-988a-4a21-8af4-62aa5c02f6d4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-19 14:55:05,983 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00fb72fe-988a-4a21-8af4-62aa5c02f6d4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:55:05,983 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:55:05,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:55:05,985 INFO L85 PathProgramCache]: Analyzing trace with hash 657368916, now seen corresponding path program 1 times [2021-11-19 14:55:05,985 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-19 14:55:05,986 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [481936255] [2021-11-19 14:55:05,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:55:05,986 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 14:55:05,986 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00fb72fe-988a-4a21-8af4-62aa5c02f6d4/bin/utaipan-UbGMyvGFUs/mathsat [2021-11-19 14:55:05,989 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00fb72fe-988a-4a21-8af4-62aa5c02f6d4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 14:55:06,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00fb72fe-988a-4a21-8af4-62aa5c02f6d4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 14:55:06,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:55:06,102 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-19 14:55:06,105 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:55:06,249 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 30 [2021-11-19 14:55:06,482 INFO L354 Elim1Store]: treesize reduction 15, result has 42.3 percent of original size [2021-11-19 14:55:06,483 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 66 treesize of output 57 [2021-11-19 14:55:07,068 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 36 [2021-11-19 14:55:07,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:55:07,463 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:55:09,990 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_isinf_float_~ix~1#1_10| (_ BitVec 32))) (or (= (bvand (_ bv2147483647 32) |v_ULTIMATE.start_isinf_float_~ix~1#1_10|) (_ bv2139095040 32)) (not (= (let ((.cse0 (bvand (_ bv2147483647 32) |c_ULTIMATE.start_fabs_float_~ix~0#1|))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0))) (fp ((_ extract 31 31) |v_ULTIMATE.start_isinf_float_~ix~1#1_10|) ((_ extract 30 23) |v_ULTIMATE.start_isinf_float_~ix~1#1_10|) ((_ extract 22 0) |v_ULTIMATE.start_isinf_float_~ix~1#1_10|)))))) is different from false [2021-11-19 14:55:12,114 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_fabs_float_~ix~0#1_5| (_ BitVec 32)) (|v_ULTIMATE.start_isinf_float_~ix~1#1_10| (_ BitVec 32))) (or (= (bvand (_ bv2147483647 32) |v_ULTIMATE.start_isinf_float_~ix~1#1_10|) (_ bv2139095040 32)) (not (= (let ((.cse0 (bvand (_ bv2147483647 32) |v_ULTIMATE.start_fabs_float_~ix~0#1_5|))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0))) (fp ((_ extract 31 31) |v_ULTIMATE.start_isinf_float_~ix~1#1_10|) ((_ extract 30 23) |v_ULTIMATE.start_isinf_float_~ix~1#1_10|) ((_ extract 22 0) |v_ULTIMATE.start_isinf_float_~ix~1#1_10|)))) (not (= (fp ((_ extract 31 31) |v_ULTIMATE.start_fabs_float_~ix~0#1_5|) ((_ extract 30 23) |v_ULTIMATE.start_fabs_float_~ix~0#1_5|) ((_ extract 22 0) |v_ULTIMATE.start_fabs_float_~ix~0#1_5|)) |c_ULTIMATE.start_fabs_float_~x#1|)))) is different from false [2021-11-19 14:55:12,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:55:12,141 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-19 14:55:12,142 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [481936255] [2021-11-19 14:55:12,142 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [481936255] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:55:12,142 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:55:12,142 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 18 [2021-11-19 14:55:12,143 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898519166] [2021-11-19 14:55:12,143 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:55:12,144 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-19 14:55:12,144 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-19 14:55:12,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-19 14:55:12,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=206, Unknown=2, NotChecked=58, Total=306 [2021-11-19 14:55:12,146 INFO L87 Difference]: Start difference. First operand 15 states and 14 transitions. Second operand has 18 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 18 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:55:16,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:55:16,426 INFO L93 Difference]: Finished difference Result 15 states and 14 transitions. [2021-11-19 14:55:16,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-19 14:55:16,427 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 18 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-11-19 14:55:16,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:55:16,427 INFO L225 Difference]: With dead ends: 15 [2021-11-19 14:55:16,427 INFO L226 Difference]: Without dead ends: 0 [2021-11-19 14:55:16,429 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 2 IntricatePredicates, 2 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 9.0s TimeCoverageRelationStatistics Valid=55, Invalid=293, Unknown=2, NotChecked=70, Total=420 [2021-11-19 14:55:16,431 INFO L933 BasicCegarLoop]: 5 mSDtfsCounter, 2 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 23 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:55:16,432 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 41 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 23 Unchecked, 0.0s Time] [2021-11-19 14:55:16,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-19 14:55:16,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-19 14:55:16,433 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) [2021-11-19 14:55:16,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-19 14:55:16,434 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2021-11-19 14:55:16,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:55:16,434 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-19 14:55:16,435 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 18 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:55:16,435 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-19 14:55:16,435 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-19 14:55:16,438 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-19 14:55:16,455 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00fb72fe-988a-4a21-8af4-62aa5c02f6d4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-19 14:55:16,655 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00fb72fe-988a-4a21-8af4-62aa5c02f6d4/bin/utaipan-UbGMyvGFUs/mathsat -unsat_core_generation=3 [2021-11-19 14:55:16,657 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-19 14:55:16,682 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-19 14:55:16,682 INFO L858 garLoopResultBuilder]: For program point L31-1(lines 31 35) no Hoare annotation was computed. [2021-11-19 14:55:16,682 INFO L854 garLoopResultBuilder]: At program point L31-2(lines 31 35) the Hoare annotation is: (exists ((v_arrayElimCell_1 (_ BitVec 32)) (|v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_5| (_ BitVec 32)) (currentRoundingMode RoundingMode)) (let ((.cse0 (select (select |#memory_int| |v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_5|) (_ bv0 32)))) (and (= .cse0 (bvand (_ bv2147483647 32) v_arrayElimCell_1)) (= (fp ((_ extract 31 31) v_arrayElimCell_1) ((_ extract 30 23) v_arrayElimCell_1) ((_ extract 22 0) v_arrayElimCell_1)) (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24))) (= (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0)) |ULTIMATE.start_isinf_float_~x#1|)))) [2021-11-19 14:55:16,683 INFO L858 garLoopResultBuilder]: For program point L31-3(lines 31 35) no Hoare annotation was computed. [2021-11-19 14:55:16,684 INFO L854 garLoopResultBuilder]: At program point L25(lines 13 26) the Hoare annotation is: (exists ((v_arrayElimCell_1 (_ BitVec 32)) (|v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_5| (_ BitVec 32)) (currentRoundingMode RoundingMode)) (let ((.cse0 (select (select |#memory_int| |v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_5|) (_ bv0 32)))) (and (= (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0)) |ULTIMATE.start_fabs_float_#res#1|) (= .cse0 (bvand (_ bv2147483647 32) v_arrayElimCell_1)) (= (fp ((_ extract 31 31) v_arrayElimCell_1) ((_ extract 30 23) v_arrayElimCell_1) ((_ extract 22 0) v_arrayElimCell_1)) (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24)))))) [2021-11-19 14:55:16,684 INFO L858 garLoopResultBuilder]: For program point L52(lines 52 55) no Hoare annotation was computed. [2021-11-19 14:55:16,684 INFO L858 garLoopResultBuilder]: For program point L15-1(lines 15 19) no Hoare annotation was computed. [2021-11-19 14:55:16,684 INFO L854 garLoopResultBuilder]: At program point L15-2(lines 15 19) the Hoare annotation is: (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24)) |ULTIMATE.start_fabs_float_~x#1|)) [2021-11-19 14:55:16,685 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-19 14:55:16,685 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-19 14:55:16,685 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-19 14:55:16,685 INFO L861 garLoopResultBuilder]: At program point L57(lines 40 58) the Hoare annotation is: true [2021-11-19 14:55:16,686 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 53) no Hoare annotation was computed. [2021-11-19 14:55:16,686 INFO L858 garLoopResultBuilder]: For program point L53(line 53) no Hoare annotation was computed. [2021-11-19 14:55:16,686 INFO L858 garLoopResultBuilder]: For program point L20(lines 20 24) no Hoare annotation was computed. [2021-11-19 14:55:16,686 INFO L858 garLoopResultBuilder]: For program point L20-1(lines 13 26) no Hoare annotation was computed. [2021-11-19 14:55:16,687 INFO L858 garLoopResultBuilder]: For program point L20-2(lines 20 24) no Hoare annotation was computed. [2021-11-19 14:55:16,687 INFO L854 garLoopResultBuilder]: At program point L37(lines 29 38) the Hoare annotation is: (= |ULTIMATE.start_isinf_float_#res#1| (_ bv1 32)) [2021-11-19 14:55:16,691 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-19 14:55:16,692 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-19 14:55:16,700 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_5,QUANTIFIED] [2021-11-19 14:55:16,701 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_5,QUANTIFIED] [2021-11-19 14:55:16,701 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_5,QUANTIFIED] [2021-11-19 14:55:16,701 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_5,QUANTIFIED] [2021-11-19 14:55:16,702 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-19 14:55:16,702 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-19 14:55:16,702 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-19 14:55:16,703 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-19 14:55:16,703 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-19 14:55:16,703 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-19 14:55:16,711 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_5,QUANTIFIED] [2021-11-19 14:55:16,711 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_5,QUANTIFIED] [2021-11-19 14:55:16,712 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_5,QUANTIFIED] [2021-11-19 14:55:16,712 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_5,QUANTIFIED] [2021-11-19 14:55:16,712 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-19 14:55:16,712 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-19 14:55:16,713 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-19 14:55:16,713 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-19 14:55:16,713 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-19 14:55:16,713 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-19 14:55:16,715 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_5,QUANTIFIED] [2021-11-19 14:55:16,716 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-19 14:55:16,716 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-19 14:55:16,716 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-19 14:55:16,717 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-19 14:55:16,717 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-19 14:55:16,717 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-19 14:55:16,717 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_5,QUANTIFIED] [2021-11-19 14:55:16,718 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_5,QUANTIFIED] [2021-11-19 14:55:16,718 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_5,QUANTIFIED] [2021-11-19 14:55:16,719 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_5,QUANTIFIED] [2021-11-19 14:55:16,719 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-19 14:55:16,719 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-19 14:55:16,720 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-19 14:55:16,720 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-19 14:55:16,720 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-19 14:55:16,721 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-19 14:55:16,721 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_5,QUANTIFIED] [2021-11-19 14:55:16,721 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_5,QUANTIFIED] [2021-11-19 14:55:16,721 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_5,QUANTIFIED] [2021-11-19 14:55:16,723 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-19 14:55:16,723 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-19 14:55:16,724 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-19 14:55:16,724 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-19 14:55:16,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 02:55:16 BoogieIcfgContainer [2021-11-19 14:55:16,725 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-19 14:55:16,726 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-19 14:55:16,726 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-19 14:55:16,726 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-19 14:55:16,727 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:55:05" (3/4) ... [2021-11-19 14:55:16,730 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-19 14:55:16,741 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-11-19 14:55:16,742 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-19 14:55:16,742 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-19 14:55:16,742 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-19 14:55:16,768 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE()) == x) [2021-11-19 14:55:16,773 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00fb72fe-988a-4a21-8af4-62aa5c02f6d4/bin/utaipan-UbGMyvGFUs/witness.graphml [2021-11-19 14:55:16,773 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-19 14:55:16,774 INFO L158 Benchmark]: Toolchain (without parser) took 12157.82ms. Allocated memory was 73.4MB in the beginning and 88.1MB in the end (delta: 14.7MB). Free memory was 54.4MB in the beginning and 59.1MB in the end (delta: -4.8MB). Peak memory consumption was 9.4MB. Max. memory is 16.1GB. [2021-11-19 14:55:16,774 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 73.4MB. Free memory is still 53.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 14:55:16,775 INFO L158 Benchmark]: CACSL2BoogieTranslator took 310.20ms. Allocated memory is still 73.4MB. Free memory was 54.2MB in the beginning and 56.0MB in the end (delta: -1.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-19 14:55:16,775 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.45ms. Allocated memory is still 73.4MB. Free memory was 56.0MB in the beginning and 54.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 14:55:16,776 INFO L158 Benchmark]: Boogie Preprocessor took 28.45ms. Allocated memory is still 73.4MB. Free memory was 54.4MB in the beginning and 53.0MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 14:55:16,776 INFO L158 Benchmark]: RCFGBuilder took 311.50ms. Allocated memory is still 73.4MB. Free memory was 52.9MB in the beginning and 42.4MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-19 14:55:16,777 INFO L158 Benchmark]: TraceAbstraction took 11385.28ms. Allocated memory was 73.4MB in the beginning and 88.1MB in the end (delta: 14.7MB). Free memory was 41.9MB in the beginning and 61.9MB in the end (delta: -20.0MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 14:55:16,777 INFO L158 Benchmark]: Witness Printer took 47.31ms. Allocated memory is still 88.1MB. Free memory was 61.2MB in the beginning and 59.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 14:55:16,779 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 73.4MB. Free memory is still 53.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 310.20ms. Allocated memory is still 73.4MB. Free memory was 54.2MB in the beginning and 56.0MB in the end (delta: -1.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 65.45ms. Allocated memory is still 73.4MB. Free memory was 56.0MB in the beginning and 54.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.45ms. Allocated memory is still 73.4MB. Free memory was 54.4MB in the beginning and 53.0MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 311.50ms. Allocated memory is still 73.4MB. Free memory was 52.9MB in the beginning and 42.4MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 11385.28ms. Allocated memory was 73.4MB in the beginning and 88.1MB in the end (delta: 14.7MB). Free memory was 41.9MB in the beginning and 61.9MB in the end (delta: -20.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 47.31ms. Allocated memory is still 88.1MB. Free memory was 61.2MB in the beginning and 59.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] - 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 Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] - 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 Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] - 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 Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] - 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 Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_5,QUANTIFIED] - 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 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] * 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: 53]: 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, 18 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 11.3s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 58 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 23 IncrementalHoareTripleChecker+Unchecked, 36 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3 IncrementalHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 22 mSDtfsCounter, 3 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 49 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 2 IntricatePredicates, 2 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 9.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=0, InterpolantAutomatonStates: 12, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 10 NumberOfFragments, 108 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 6.1s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 46 ConstructedInterpolants, 16 QuantifiedInterpolants, 559 SizeOfPredicates, 14 NumberOfNonLiveVariables, 83 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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: 13]: Loop Invariant [2021-11-19 14:55:16,805 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_5,QUANTIFIED] [2021-11-19 14:55:16,806 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_5,QUANTIFIED] [2021-11-19 14:55:16,806 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_5,QUANTIFIED] [2021-11-19 14:55:16,806 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_5,QUANTIFIED] [2021-11-19 14:55:16,806 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-19 14:55:16,807 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-19 14:55:16,814 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-19 14:55:16,815 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-19 14:55:16,815 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-19 14:55:16,815 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-19 14:55:16,816 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_5,QUANTIFIED] [2021-11-19 14:55:16,818 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_5,QUANTIFIED] [2021-11-19 14:55:16,819 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_5,QUANTIFIED] [2021-11-19 14:55:16,819 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_5,QUANTIFIED] [2021-11-19 14:55:16,819 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-19 14:55:16,820 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-19 14:55:16,820 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-19 14:55:16,820 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-19 14:55:16,821 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-19 14:55:16,826 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (\exists v_arrayElimCell_1 : bv32, v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_5 : bv32, currentRoundingMode : FloatRoundingMode :: (~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_5][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_5][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_5][0bv32][22:0]) == \result && unknown-#memory_int-unknown[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_5][0bv32] == ~bvand32(2147483647bv32, v_arrayElimCell_1)) && ~fp~LONGDOUBLE(v_arrayElimCell_1[31:31], v_arrayElimCell_1[30:23], v_arrayElimCell_1[22:0]) == ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE())) - InvariantResult [Line: 31]: Loop Invariant [2021-11-19 14:55:16,827 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_5,QUANTIFIED] [2021-11-19 14:55:16,827 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-19 14:55:16,827 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-19 14:55:16,827 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-19 14:55:16,827 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-19 14:55:16,828 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-19 14:55:16,828 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-19 14:55:16,828 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_5,QUANTIFIED] [2021-11-19 14:55:16,828 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_5,QUANTIFIED] [2021-11-19 14:55:16,828 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_5,QUANTIFIED] [2021-11-19 14:55:16,829 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_5,QUANTIFIED] [2021-11-19 14:55:16,829 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-19 14:55:16,830 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-19 14:55:16,830 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-19 14:55:16,830 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_arrayElimCell_1,QUANTIFIED] [2021-11-19 14:55:16,830 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-19 14:55:16,830 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-19 14:55:16,830 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_5,QUANTIFIED] [2021-11-19 14:55:16,831 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_5,QUANTIFIED] [2021-11-19 14:55:16,831 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_5,QUANTIFIED] Derived loop invariant: (\exists v_arrayElimCell_1 : bv32, v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_5 : bv32, currentRoundingMode : FloatRoundingMode :: (unknown-#memory_int-unknown[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_5][0bv32] == ~bvand32(2147483647bv32, v_arrayElimCell_1) && ~fp~LONGDOUBLE(v_arrayElimCell_1[31:31], v_arrayElimCell_1[30:23], v_arrayElimCell_1[22:0]) == ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_5][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_5][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start_fabs_float_~#sf_u~0#1.base_5][0bv32][22:0]) == x) - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: \result == 1bv32 - InvariantResult [Line: 15]: Loop Invariant [2021-11-19 14:55:16,836 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-19 14:55:16,836 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-19 14:55:16,836 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-19 14:55:16,837 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE()) == x) RESULT: Ultimate proved your program to be correct! [2021-11-19 14:55:16,875 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_00fb72fe-988a-4a21-8af4-62aa5c02f6d4/bin/utaipan-UbGMyvGFUs/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