./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0831.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_8ec0b6f9-af00-46bf-9437-532f273d4b16/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_8ec0b6f9-af00-46bf-9437-532f273d4b16/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8ec0b6f9-af00-46bf-9437-532f273d4b16/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8ec0b6f9-af00-46bf-9437-532f273d4b16/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0831.c -s /tmp/vcloud-vcloud-master/worker/run_dir_8ec0b6f9-af00-46bf-9437-532f273d4b16/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8ec0b6f9-af00-46bf-9437-532f273d4b16/bin/utaipan --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 3f171dd4f575b92a9302785470b2bac89695cbf3 ............................................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_8ec0b6f9-af00-46bf-9437-532f273d4b16/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_8ec0b6f9-af00-46bf-9437-532f273d4b16/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8ec0b6f9-af00-46bf-9437-532f273d4b16/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8ec0b6f9-af00-46bf-9437-532f273d4b16/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0831.c -s /tmp/vcloud-vcloud-master/worker/run_dir_8ec0b6f9-af00-46bf-9437-532f273d4b16/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8ec0b6f9-af00-46bf-9437-532f273d4b16/bin/utaipan --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 3f171dd4f575b92a9302785470b2bac89695cbf3 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 03:34:56,366 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 03:34:56,370 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 03:34:56,419 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 03:34:56,419 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 03:34:56,421 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 03:34:56,424 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 03:34:56,427 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 03:34:56,431 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 03:34:56,432 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 03:34:56,434 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 03:34:56,436 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 03:34:56,436 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 03:34:56,438 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 03:34:56,440 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 03:34:56,441 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 03:34:56,443 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 03:34:56,444 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 03:34:56,447 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 03:34:56,450 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 03:34:56,453 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 03:34:56,455 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 03:34:56,457 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 03:34:56,458 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 03:34:56,463 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 03:34:56,463 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 03:34:56,464 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 03:34:56,465 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 03:34:56,466 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 03:34:56,467 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 03:34:56,468 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 03:34:56,469 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 03:34:56,470 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 03:34:56,471 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 03:34:56,474 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 03:34:56,475 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 03:34:56,476 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 03:34:56,477 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 03:34:56,478 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 03:34:56,479 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 03:34:56,481 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 03:34:56,483 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8ec0b6f9-af00-46bf-9437-532f273d4b16/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-30 03:34:56,537 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 03:34:56,538 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 03:34:56,540 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-30 03:34:56,540 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-30 03:34:56,540 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-30 03:34:56,541 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-30 03:34:56,541 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-30 03:34:56,541 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-30 03:34:56,542 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-30 03:34:56,542 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-30 03:34:56,543 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-30 03:34:56,543 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-30 03:34:56,544 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-30 03:34:56,544 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-30 03:34:56,544 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-30 03:34:56,545 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 03:34:56,546 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 03:34:56,546 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 03:34:56,546 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 03:34:56,546 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 03:34:56,547 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 03:34:56,547 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 03:34:56,547 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 03:34:56,547 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-30 03:34:56,548 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 03:34:56,548 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 03:34:56,548 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 03:34:56,549 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 03:34:56,549 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 03:34:56,551 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 03:34:56,551 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 03:34:56,551 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 03:34:56,552 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 03:34:56,552 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 03:34:56,552 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 03:34:56,552 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-30 03:34:56,553 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 03:34:56,553 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 03:34:56,553 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 03:34:56,553 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 03:34:56,554 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-vcloud-master/worker/run_dir_8ec0b6f9-af00-46bf-9437-532f273d4b16/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_8ec0b6f9-af00-46bf-9437-532f273d4b16/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3f171dd4f575b92a9302785470b2bac89695cbf3 [2020-11-30 03:34:56,821 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 03:34:56,869 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 03:34:56,872 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 03:34:56,874 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 03:34:56,877 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 03:34:56,878 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8ec0b6f9-af00-46bf-9437-532f273d4b16/bin/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0831.c [2020-11-30 03:34:57,029 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8ec0b6f9-af00-46bf-9437-532f273d4b16/bin/utaipan/data/bec8afad4/1c46b5f3ca5c4d6c8eaa030f25413bd1/FLAG54cc4a7b7 [2020-11-30 03:34:57,546 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 03:34:57,547 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8ec0b6f9-af00-46bf-9437-532f273d4b16/sv-benchmarks/c/float-newlib/float_req_bl_0831.c [2020-11-30 03:34:57,556 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8ec0b6f9-af00-46bf-9437-532f273d4b16/bin/utaipan/data/bec8afad4/1c46b5f3ca5c4d6c8eaa030f25413bd1/FLAG54cc4a7b7 [2020-11-30 03:34:57,921 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8ec0b6f9-af00-46bf-9437-532f273d4b16/bin/utaipan/data/bec8afad4/1c46b5f3ca5c4d6c8eaa030f25413bd1 [2020-11-30 03:34:57,924 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 03:34:57,927 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 03:34:57,929 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 03:34:57,929 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 03:34:57,933 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 03:34:57,934 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 03:34:57" (1/1) ... [2020-11-30 03:34:57,937 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4605a85b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:34:57, skipping insertion in model container [2020-11-30 03:34:57,937 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 03:34:57" (1/1) ... [2020-11-30 03:34:57,946 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 03:34:57,970 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 03:34:58,211 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 03:34:58,222 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 03:34:58,265 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 03:34:58,294 INFO L208 MainTranslator]: Completed translation [2020-11-30 03:34:58,295 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:34:58 WrapperNode [2020-11-30 03:34:58,295 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 03:34:58,298 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 03:34:58,298 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 03:34:58,299 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 03:34:58,309 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:34:58" (1/1) ... [2020-11-30 03:34:58,336 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:34:58" (1/1) ... [2020-11-30 03:34:58,367 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 03:34:58,368 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 03:34:58,369 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 03:34:58,369 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 03:34:58,380 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:34:58" (1/1) ... [2020-11-30 03:34:58,380 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:34:58" (1/1) ... [2020-11-30 03:34:58,384 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:34:58" (1/1) ... [2020-11-30 03:34:58,385 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:34:58" (1/1) ... [2020-11-30 03:34:58,397 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:34:58" (1/1) ... [2020-11-30 03:34:58,403 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:34:58" (1/1) ... [2020-11-30 03:34:58,406 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:34:58" (1/1) ... [2020-11-30 03:34:58,410 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 03:34:58,412 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 03:34:58,412 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 03:34:58,412 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 03:34:58,413 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:34:58" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8ec0b6f9-af00-46bf-9437-532f273d4b16/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 03:34:58,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 03:34:58,499 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 03:34:58,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-30 03:34:58,499 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-11-30 03:34:58,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-30 03:34:58,500 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 03:34:58,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 03:34:58,500 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-30 03:34:58,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-11-30 03:34:58,501 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 03:34:59,230 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 03:34:59,230 INFO L298 CfgBuilder]: Removed 20 assume(true) statements. [2020-11-30 03:34:59,232 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 03:34:59 BoogieIcfgContainer [2020-11-30 03:34:59,232 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 03:34:59,234 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 03:34:59,234 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 03:34:59,240 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 03:34:59,240 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 03:34:57" (1/3) ... [2020-11-30 03:34:59,241 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28e9f87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 03:34:59, skipping insertion in model container [2020-11-30 03:34:59,241 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:34:58" (2/3) ... [2020-11-30 03:34:59,242 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28e9f87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 03:34:59, skipping insertion in model container [2020-11-30 03:34:59,242 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 03:34:59" (3/3) ... [2020-11-30 03:34:59,244 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0831.c [2020-11-30 03:34:59,262 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 03:34:59,267 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 03:34:59,287 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-30 03:34:59,329 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 03:34:59,329 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 03:34:59,330 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 03:34:59,330 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 03:34:59,330 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 03:34:59,330 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 03:34:59,330 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 03:34:59,330 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 03:34:59,349 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2020-11-30 03:34:59,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-30 03:34:59,361 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:34:59,362 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 03:34:59,363 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 03:34:59,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:34:59,371 INFO L82 PathProgramCache]: Analyzing trace with hash -693978133, now seen corresponding path program 1 times [2020-11-30 03:34:59,383 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 03:34:59,384 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597277705] [2020-11-30 03:34:59,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 03:34:59,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:34:59,636 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:34:59,637 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597277705] [2020-11-30 03:34:59,638 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 03:34:59,639 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 03:34:59,640 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176030230] [2020-11-30 03:34:59,645 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-30 03:34:59,646 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 03:34:59,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-30 03:34:59,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 03:34:59,670 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 2 states. [2020-11-30 03:34:59,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 03:34:59,701 INFO L93 Difference]: Finished difference Result 59 states and 97 transitions. [2020-11-30 03:34:59,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-30 03:34:59,702 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2020-11-30 03:34:59,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 03:34:59,724 INFO L225 Difference]: With dead ends: 59 [2020-11-30 03:34:59,725 INFO L226 Difference]: Without dead ends: 28 [2020-11-30 03:34:59,728 INFO L677 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 [2020-11-30 03:34:59,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-11-30 03:34:59,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-11-30 03:34:59,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-11-30 03:34:59,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 36 transitions. [2020-11-30 03:34:59,800 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 36 transitions. Word has length 7 [2020-11-30 03:34:59,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 03:34:59,800 INFO L481 AbstractCegarLoop]: Abstraction has 28 states and 36 transitions. [2020-11-30 03:34:59,800 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-30 03:34:59,800 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 36 transitions. [2020-11-30 03:34:59,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-30 03:34:59,801 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:34:59,802 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 03:34:59,803 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 03:34:59,803 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 03:34:59,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:34:59,807 INFO L82 PathProgramCache]: Analyzing trace with hash -2105615014, now seen corresponding path program 1 times [2020-11-30 03:34:59,807 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 03:34:59,807 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940182396] [2020-11-30 03:34:59,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 03:34:59,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 03:34:59,959 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 03:35:00,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 03:35:00,056 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 03:35:00,112 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-11-30 03:35:00,112 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-30 03:35:00,113 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-30 03:35:00,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 03:35:00 BoogieIcfgContainer [2020-11-30 03:35:00,183 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 03:35:00,185 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 03:35:00,186 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 03:35:00,186 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 03:35:00,187 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 03:34:59" (3/4) ... [2020-11-30 03:35:00,190 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-30 03:35:00,192 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 03:35:00,197 INFO L168 Benchmark]: Toolchain (without parser) took 2266.47 ms. Allocated memory was 77.6 MB in the beginning and 98.6 MB in the end (delta: 21.0 MB). Free memory was 44.0 MB in the beginning and 67.9 MB in the end (delta: -23.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 03:35:00,198 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 77.6 MB. Free memory was 44.0 MB in the beginning and 44.0 MB in the end (delta: 57.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 03:35:00,201 INFO L168 Benchmark]: CACSL2BoogieTranslator took 367.19 ms. Allocated memory was 77.6 MB in the beginning and 98.6 MB in the end (delta: 21.0 MB). Free memory was 43.8 MB in the beginning and 75.9 MB in the end (delta: -32.1 MB). Peak memory consumption was 12.5 MB. Max. memory is 16.1 GB. [2020-11-30 03:35:00,202 INFO L168 Benchmark]: Boogie Procedure Inliner took 69.56 ms. Allocated memory is still 98.6 MB. Free memory was 75.9 MB in the beginning and 73.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 03:35:00,204 INFO L168 Benchmark]: Boogie Preprocessor took 42.13 ms. Allocated memory is still 98.6 MB. Free memory was 73.8 MB in the beginning and 72.2 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 03:35:00,205 INFO L168 Benchmark]: RCFGBuilder took 821.11 ms. Allocated memory is still 98.6 MB. Free memory was 72.2 MB in the beginning and 40.3 MB in the end (delta: 32.0 MB). Peak memory consumption was 33.6 MB. Max. memory is 16.1 GB. [2020-11-30 03:35:00,206 INFO L168 Benchmark]: TraceAbstraction took 948.68 ms. Allocated memory is still 98.6 MB. Free memory was 39.9 MB in the beginning and 68.4 MB in the end (delta: -28.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 03:35:00,207 INFO L168 Benchmark]: Witness Printer took 7.32 ms. Allocated memory is still 98.6 MB. Free memory was 68.4 MB in the beginning and 67.9 MB in the end (delta: 494.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 03:35:00,219 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 77.6 MB. Free memory was 44.0 MB in the beginning and 44.0 MB in the end (delta: 57.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 367.19 ms. Allocated memory was 77.6 MB in the beginning and 98.6 MB in the end (delta: 21.0 MB). Free memory was 43.8 MB in the beginning and 75.9 MB in the end (delta: -32.1 MB). Peak memory consumption was 12.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 69.56 ms. Allocated memory is still 98.6 MB. Free memory was 75.9 MB in the beginning and 73.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 42.13 ms. Allocated memory is still 98.6 MB. Free memory was 73.8 MB in the beginning and 72.2 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 821.11 ms. Allocated memory is still 98.6 MB. Free memory was 72.2 MB in the beginning and 40.3 MB in the end (delta: 32.0 MB). Peak memory consumption was 33.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 948.68 ms. Allocated memory is still 98.6 MB. Free memory was 39.9 MB in the beginning and 68.4 MB in the end (delta: -28.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 7.32 ms. Allocated memory is still 98.6 MB. Free memory was 68.4 MB in the beginning and 67.9 MB in the end (delta: 494.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 15, overapproximation of someUnaryDOUBLEoperation at line 21, overapproximation of bitwiseAnd at line 48, overapproximation of someBinaryArithmeticFLOAToperation at line 52. Possible FailurePath: [L17-L36] static const float one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+30, twom100_exp = 7.8886090522e-31, ln2HI_exp[2] = { 6.9313812256e-01, -6.9313812256e-01, }, ln2LO_exp[2] = { 9.0580006145e-06, -9.0580006145e-06, }, invln2_exp = 1.4426950216e+00, P1_exp = 1.6666667163e-01, P2_exp = -2.7777778450e-03, P3_exp = 6.6137559770e-05, P4_exp = -1.6533901999e-06, P5_exp = 4.1381369442e-08; [L118] float x = 0.0f / 0.0f; [L39] float y, hi, lo, c, t; [L40] __int32_t k = 0, xsb, sx; [L41] __uint32_t hx; VAL [halF_exp={5:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={7:0}, ln2LO_exp={9:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L44] ieee_float_shape_type gf_u; [L45] gf_u.value = (x) [L46] EXPR gf_u.word [L46] (sx) = gf_u.word [L48] xsb = (sx >> 31) & 1 [L49] hx = sx & 0x7fffffff VAL [halF_exp={5:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={7:0}, ln2LO_exp={9:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L51] COND TRUE ((hx) > 0x7f800000L) [L52] return x + x; VAL [halF_exp={5:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={7:0}, ln2LO_exp={9:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L119] float res = __ieee754_expf(x); [L15] return x != x; [L122] COND TRUE !isnan_float(res) [L3] __assert_fail("0", "float_req_bl_0831.c", 3, "reach_error") VAL [halF_exp={5:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={7:0}, ln2LO_exp={9:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 30 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 38 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, 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=30occurred in iteration=0, 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, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 36 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 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-a4ecdab [2020-11-30 03:35:03,283 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 03:35:03,287 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 03:35:03,344 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 03:35:03,344 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 03:35:03,346 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 03:35:03,348 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 03:35:03,351 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 03:35:03,354 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 03:35:03,356 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 03:35:03,357 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 03:35:03,359 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 03:35:03,360 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 03:35:03,361 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 03:35:03,363 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 03:35:03,364 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 03:35:03,366 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 03:35:03,370 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 03:35:03,373 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 03:35:03,378 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 03:35:03,386 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 03:35:03,389 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 03:35:03,392 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 03:35:03,394 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 03:35:03,402 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 03:35:03,404 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 03:35:03,405 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 03:35:03,411 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 03:35:03,415 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 03:35:03,417 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 03:35:03,417 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 03:35:03,421 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 03:35:03,423 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 03:35:03,425 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 03:35:03,426 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 03:35:03,427 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 03:35:03,428 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 03:35:03,428 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 03:35:03,429 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 03:35:03,431 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 03:35:03,432 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 03:35:03,433 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8ec0b6f9-af00-46bf-9437-532f273d4b16/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-11-30 03:35:03,486 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 03:35:03,486 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 03:35:03,489 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-30 03:35:03,489 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-30 03:35:03,489 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-30 03:35:03,490 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-30 03:35:03,490 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-30 03:35:03,490 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-30 03:35:03,490 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-30 03:35:03,492 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 03:35:03,494 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 03:35:03,494 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 03:35:03,494 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 03:35:03,495 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 03:35:03,495 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 03:35:03,495 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 03:35:03,495 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-30 03:35:03,496 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-30 03:35:03,496 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-30 03:35:03,496 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 03:35:03,496 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 03:35:03,497 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 03:35:03,497 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 03:35:03,497 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 03:35:03,498 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 03:35:03,498 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 03:35:03,498 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 03:35:03,498 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 03:35:03,499 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 03:35:03,499 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 03:35:03,499 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 03:35:03,500 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-30 03:35:03,500 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-30 03:35:03,500 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 03:35:03,501 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 03:35:03,501 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 03:35:03,501 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-vcloud-master/worker/run_dir_8ec0b6f9-af00-46bf-9437-532f273d4b16/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_8ec0b6f9-af00-46bf-9437-532f273d4b16/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3f171dd4f575b92a9302785470b2bac89695cbf3 [2020-11-30 03:35:03,977 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 03:35:04,017 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 03:35:04,020 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 03:35:04,021 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 03:35:04,022 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 03:35:04,023 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8ec0b6f9-af00-46bf-9437-532f273d4b16/bin/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0831.c [2020-11-30 03:35:04,108 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8ec0b6f9-af00-46bf-9437-532f273d4b16/bin/utaipan/data/e83f78744/de0edccb251b4a1396775fc7b6a25e55/FLAG04ac98125 [2020-11-30 03:35:04,818 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 03:35:04,824 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8ec0b6f9-af00-46bf-9437-532f273d4b16/sv-benchmarks/c/float-newlib/float_req_bl_0831.c [2020-11-30 03:35:04,835 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8ec0b6f9-af00-46bf-9437-532f273d4b16/bin/utaipan/data/e83f78744/de0edccb251b4a1396775fc7b6a25e55/FLAG04ac98125 [2020-11-30 03:35:05,149 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8ec0b6f9-af00-46bf-9437-532f273d4b16/bin/utaipan/data/e83f78744/de0edccb251b4a1396775fc7b6a25e55 [2020-11-30 03:35:05,161 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 03:35:05,163 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 03:35:05,166 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 03:35:05,167 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 03:35:05,171 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 03:35:05,173 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 03:35:05" (1/1) ... [2020-11-30 03:35:05,175 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2945b1bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:35:05, skipping insertion in model container [2020-11-30 03:35:05,176 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 03:35:05" (1/1) ... [2020-11-30 03:35:05,187 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 03:35:05,228 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 03:35:05,473 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 03:35:05,502 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 03:35:05,549 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 03:35:05,575 INFO L208 MainTranslator]: Completed translation [2020-11-30 03:35:05,576 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:35:05 WrapperNode [2020-11-30 03:35:05,576 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 03:35:05,578 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 03:35:05,578 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 03:35:05,578 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 03:35:05,611 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:35:05" (1/1) ... [2020-11-30 03:35:05,660 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:35:05" (1/1) ... [2020-11-30 03:35:05,703 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 03:35:05,704 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 03:35:05,704 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 03:35:05,704 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 03:35:05,714 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:35:05" (1/1) ... [2020-11-30 03:35:05,715 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:35:05" (1/1) ... [2020-11-30 03:35:05,722 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:35:05" (1/1) ... [2020-11-30 03:35:05,722 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:35:05" (1/1) ... [2020-11-30 03:35:05,738 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:35:05" (1/1) ... [2020-11-30 03:35:05,745 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:35:05" (1/1) ... [2020-11-30 03:35:05,750 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:35:05" (1/1) ... [2020-11-30 03:35:05,755 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 03:35:05,757 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 03:35:05,757 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 03:35:05,757 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 03:35:05,758 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:35:05" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8ec0b6f9-af00-46bf-9437-532f273d4b16/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 03:35:05,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2020-11-30 03:35:05,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-30 03:35:05,860 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 03:35:05,860 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-11-30 03:35:05,861 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-30 03:35:05,861 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 03:35:05,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 03:35:05,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-11-30 03:35:05,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-30 03:35:05,862 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 03:35:15,992 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 03:35:15,993 INFO L298 CfgBuilder]: Removed 20 assume(true) statements. [2020-11-30 03:35:15,994 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 03:35:15 BoogieIcfgContainer [2020-11-30 03:35:15,995 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 03:35:15,997 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 03:35:15,997 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 03:35:16,001 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 03:35:16,001 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 03:35:05" (1/3) ... [2020-11-30 03:35:16,002 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17b791b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 03:35:16, skipping insertion in model container [2020-11-30 03:35:16,002 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 03:35:05" (2/3) ... [2020-11-30 03:35:16,003 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17b791b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 03:35:16, skipping insertion in model container [2020-11-30 03:35:16,003 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 03:35:15" (3/3) ... [2020-11-30 03:35:16,005 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0831.c [2020-11-30 03:35:16,018 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 03:35:16,032 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 03:35:16,054 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-30 03:35:16,107 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 03:35:16,109 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 03:35:16,110 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 03:35:16,110 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 03:35:16,110 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 03:35:16,110 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 03:35:16,111 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 03:35:16,111 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 03:35:16,131 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2020-11-30 03:35:16,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-30 03:35:16,139 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:35:16,140 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 03:35:16,141 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 03:35:16,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:35:16,148 INFO L82 PathProgramCache]: Analyzing trace with hash -1903272656, now seen corresponding path program 1 times [2020-11-30 03:35:16,167 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 03:35:16,168 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1016445748] [2020-11-30 03:35:16,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8ec0b6f9-af00-46bf-9437-532f273d4b16/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-11-30 03:35:16,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:35:16,992 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-30 03:35:16,998 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 03:35:17,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:35:17,016 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 03:35:17,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:35:17,021 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1016445748] [2020-11-30 03:35:17,022 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 03:35:17,023 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-30 03:35:17,024 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426514585] [2020-11-30 03:35:17,029 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-30 03:35:17,029 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 03:35:17,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-30 03:35:17,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 03:35:17,048 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 2 states. [2020-11-30 03:35:17,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 03:35:17,089 INFO L93 Difference]: Finished difference Result 73 states and 115 transitions. [2020-11-30 03:35:17,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-30 03:35:17,090 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-11-30 03:35:17,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 03:35:17,102 INFO L225 Difference]: With dead ends: 73 [2020-11-30 03:35:17,103 INFO L226 Difference]: Without dead ends: 34 [2020-11-30 03:35:17,106 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 03:35:17,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-11-30 03:35:17,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2020-11-30 03:35:17,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-11-30 03:35:17,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 44 transitions. [2020-11-30 03:35:17,150 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 44 transitions. Word has length 9 [2020-11-30 03:35:17,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 03:35:17,151 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 44 transitions. [2020-11-30 03:35:17,151 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-30 03:35:17,151 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 44 transitions. [2020-11-30 03:35:17,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-30 03:35:17,152 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:35:17,152 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 03:35:17,352 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-30 03:35:17,353 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 03:35:17,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:35:17,354 INFO L82 PathProgramCache]: Analyzing trace with hash 1485078157, now seen corresponding path program 1 times [2020-11-30 03:35:17,355 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 03:35:17,355 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1397907830] [2020-11-30 03:35:17,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8ec0b6f9-af00-46bf-9437-532f273d4b16/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-11-30 03:35:18,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:35:18,045 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-30 03:35:18,047 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 03:35:18,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:35:18,221 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 03:35:18,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:35:18,753 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1397907830] [2020-11-30 03:35:18,754 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 03:35:18,754 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2020-11-30 03:35:18,754 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437450167] [2020-11-30 03:35:18,756 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-30 03:35:18,756 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 03:35:18,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-30 03:35:18,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-11-30 03:35:18,758 INFO L87 Difference]: Start difference. First operand 34 states and 44 transitions. Second operand 10 states. [2020-11-30 03:35:35,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 03:35:35,529 INFO L93 Difference]: Finished difference Result 50 states and 58 transitions. [2020-11-30 03:35:35,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-30 03:35:35,529 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 10 [2020-11-30 03:35:35,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 03:35:35,531 INFO L225 Difference]: With dead ends: 50 [2020-11-30 03:35:35,531 INFO L226 Difference]: Without dead ends: 42 [2020-11-30 03:35:35,532 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 8 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-11-30 03:35:35,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-11-30 03:35:35,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 34. [2020-11-30 03:35:35,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-11-30 03:35:35,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 42 transitions. [2020-11-30 03:35:35,539 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 42 transitions. Word has length 10 [2020-11-30 03:35:35,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 03:35:35,540 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 42 transitions. [2020-11-30 03:35:35,540 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-30 03:35:35,540 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 42 transitions. [2020-11-30 03:35:35,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-30 03:35:35,541 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 03:35:35,541 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 03:35:35,767 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-30 03:35:35,767 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 03:35:35,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 03:35:35,768 INFO L82 PathProgramCache]: Analyzing trace with hash 228797714, now seen corresponding path program 1 times [2020-11-30 03:35:35,768 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 03:35:35,769 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [520151057] [2020-11-30 03:35:35,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8ec0b6f9-af00-46bf-9437-532f273d4b16/bin/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-11-30 03:35:36,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 03:35:36,437 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 10 conjunts are in the unsatisfiable core [2020-11-30 03:35:36,439 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 03:35:36,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:35:36,579 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 03:35:36,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 03:35:36,889 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [520151057] [2020-11-30 03:35:36,889 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 03:35:36,889 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 7] imperfect sequences [] total 10 [2020-11-30 03:35:36,890 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507127518] [2020-11-30 03:35:36,890 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-30 03:35:36,890 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 03:35:36,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-30 03:35:36,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-11-30 03:35:36,892 INFO L87 Difference]: Start difference. First operand 34 states and 42 transitions. Second operand 10 states. [2020-11-30 03:35:37,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 03:35:37,134 INFO L93 Difference]: Finished difference Result 34 states and 42 transitions. [2020-11-30 03:35:37,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 03:35:37,134 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 12 [2020-11-30 03:35:37,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 03:35:37,135 INFO L225 Difference]: With dead ends: 34 [2020-11-30 03:35:37,135 INFO L226 Difference]: Without dead ends: 0 [2020-11-30 03:35:37,136 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-11-30 03:35:37,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-30 03:35:37,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-30 03:35:37,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-30 03:35:37,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-30 03:35:37,137 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2020-11-30 03:35:37,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 03:35:37,137 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 03:35:37,137 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-30 03:35:37,137 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-30 03:35:37,137 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-30 03:35:37,338 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-30 03:35:37,340 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-30 03:35:37,502 INFO L274 CegarLoopResult]: For program point L60(lines 60 75) no Hoare annotation was computed. [2020-11-30 03:35:37,502 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-30 03:35:37,502 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-11-30 03:35:37,503 INFO L277 CegarLoopResult]: At program point L127(lines 113 128) the Hoare annotation is: true [2020-11-30 03:35:37,503 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-30 03:35:37,503 INFO L274 CegarLoopResult]: For program point L61(lines 61 70) no Hoare annotation was computed. [2020-11-30 03:35:37,503 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-30 03:35:37,503 INFO L274 CegarLoopResult]: For program point L61-2(lines 61 70) no Hoare annotation was computed. [2020-11-30 03:35:37,503 INFO L274 CegarLoopResult]: For program point L53(lines 53 54) no Hoare annotation was computed. [2020-11-30 03:35:37,504 INFO L274 CegarLoopResult]: For program point L86-1(lines 86 90) no Hoare annotation was computed. [2020-11-30 03:35:37,504 INFO L270 CegarLoopResult]: At program point L86-2(lines 86 90) the Hoare annotation is: false [2020-11-30 03:35:37,504 INFO L274 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-11-30 03:35:37,504 INFO L274 CegarLoopResult]: For program point L54-2(line 54) no Hoare annotation was computed. [2020-11-30 03:35:37,504 INFO L274 CegarLoopResult]: For program point L104(lines 104 108) no Hoare annotation was computed. [2020-11-30 03:35:37,504 INFO L274 CegarLoopResult]: For program point L104-1(lines 97 110) no Hoare annotation was computed. [2020-11-30 03:35:37,505 INFO L274 CegarLoopResult]: For program point L104-2(lines 104 108) no Hoare annotation was computed. [2020-11-30 03:35:37,505 INFO L274 CegarLoopResult]: For program point L55(lines 55 56) no Hoare annotation was computed. [2020-11-30 03:35:37,505 INFO L274 CegarLoopResult]: For program point L80(lines 80 83) no Hoare annotation was computed. [2020-11-30 03:35:37,505 INFO L274 CegarLoopResult]: For program point L72(lines 72 75) no Hoare annotation was computed. [2020-11-30 03:35:37,505 INFO L274 CegarLoopResult]: For program point L72-2(lines 60 75) no Hoare annotation was computed. [2020-11-30 03:35:37,505 INFO L274 CegarLoopResult]: For program point L122(lines 122 125) no Hoare annotation was computed. [2020-11-30 03:35:37,506 INFO L270 CegarLoopResult]: At program point L15(line 15) the Hoare annotation is: (and (= |ULTIMATE.start___ieee754_expf_#res| (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (fp.add roundNearestTiesToEven .cse0 .cse0))) (= currentRoundingMode roundNearestTiesToEven) (= (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)) ULTIMATE.start___ieee754_expf_~x) (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|)) [2020-11-30 03:35:37,506 INFO L274 CegarLoopResult]: For program point L73(lines 73 74) no Hoare annotation was computed. [2020-11-30 03:35:37,506 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-30 03:35:37,506 INFO L274 CegarLoopResult]: For program point L57(lines 57 58) no Hoare annotation was computed. [2020-11-30 03:35:37,506 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-30 03:35:37,506 INFO L274 CegarLoopResult]: For program point L99-1(lines 99 103) no Hoare annotation was computed. [2020-11-30 03:35:37,506 INFO L270 CegarLoopResult]: At program point L99-2(lines 99 103) the Hoare annotation is: false [2020-11-30 03:35:37,507 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-30 03:35:37,507 INFO L274 CegarLoopResult]: For program point L91(lines 91 95) no Hoare annotation was computed. [2020-11-30 03:35:37,507 INFO L274 CegarLoopResult]: For program point L91-1(lines 84 97) no Hoare annotation was computed. [2020-11-30 03:35:37,507 INFO L274 CegarLoopResult]: For program point L91-2(lines 91 95) no Hoare annotation was computed. [2020-11-30 03:35:37,507 INFO L274 CegarLoopResult]: For program point L84(lines 84 110) no Hoare annotation was computed. [2020-11-30 03:35:37,507 INFO L274 CegarLoopResult]: For program point L51(lines 51 52) no Hoare annotation was computed. [2020-11-30 03:35:37,508 INFO L270 CegarLoopResult]: At program point L109(lines 38 111) the Hoare annotation is: (and (= |ULTIMATE.start___ieee754_expf_#res| (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (fp.add roundNearestTiesToEven .cse0 .cse0))) (= currentRoundingMode roundNearestTiesToEven) (= (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)) ULTIMATE.start___ieee754_expf_~x)) [2020-11-30 03:35:37,508 INFO L274 CegarLoopResult]: For program point L43-1(lines 43 47) no Hoare annotation was computed. [2020-11-30 03:35:37,508 INFO L270 CegarLoopResult]: At program point L43-2(lines 43 47) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)) ULTIMATE.start___ieee754_expf_~x))) [2020-11-30 03:35:37,508 INFO L274 CegarLoopResult]: For program point L43-3(lines 43 47) no Hoare annotation was computed. [2020-11-30 03:35:37,518 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 03:35:37,519 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 03:35:37,519 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 03:35:37,520 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 03:35:37,522 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 03:35:37,522 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 03:35:37,528 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 03:35:37,529 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 03:35:37,529 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 03:35:37,529 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 03:35:37,530 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 03:35:37,530 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 03:35:37,531 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 03:35:37,532 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 03:35:37,532 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 03:35:37,532 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 03:35:37,532 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 03:35:37,533 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 03:35:37,533 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 03:35:37,533 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 03:35:37,534 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 03:35:37,534 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 03:35:37,536 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 03:35:37,537 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 03:35:37,538 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 03:35:37,538 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-30 03:35:37,538 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 03:35:37,540 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 03:35:37,540 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-30 03:35:37,540 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 03:35:37,543 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 03:35:37 BoogieIcfgContainer [2020-11-30 03:35:37,543 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 03:35:37,544 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 03:35:37,544 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 03:35:37,545 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 03:35:37,547 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 03:35:15" (3/4) ... [2020-11-30 03:35:37,554 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-30 03:35:37,575 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2020-11-30 03:35:37,576 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-30 03:35:37,576 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 03:35:37,577 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 03:35:37,610 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x) [2020-11-30 03:35:37,613 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x [2020-11-30 03:35:37,617 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x) && 1bv32 == \result [2020-11-30 03:35:37,683 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_8ec0b6f9-af00-46bf-9437-532f273d4b16/bin/utaipan/witness.graphml [2020-11-30 03:35:37,683 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 03:35:37,685 INFO L168 Benchmark]: Toolchain (without parser) took 32520.94 ms. Allocated memory was 52.4 MB in the beginning and 81.8 MB in the end (delta: 29.4 MB). Free memory was 29.8 MB in the beginning and 48.1 MB in the end (delta: -18.3 MB). Peak memory consumption was 10.6 MB. Max. memory is 16.1 GB. [2020-11-30 03:35:37,686 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 52.4 MB. Free memory is still 34.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 03:35:37,686 INFO L168 Benchmark]: CACSL2BoogieTranslator took 410.42 ms. Allocated memory is still 52.4 MB. Free memory was 29.6 MB in the beginning and 30.6 MB in the end (delta: -970.4 kB). Peak memory consumption was 7.1 MB. Max. memory is 16.1 GB. [2020-11-30 03:35:37,687 INFO L168 Benchmark]: Boogie Procedure Inliner took 125.19 ms. Allocated memory was 52.4 MB in the beginning and 67.1 MB in the end (delta: 14.7 MB). Free memory was 30.6 MB in the beginning and 49.7 MB in the end (delta: -19.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 03:35:37,688 INFO L168 Benchmark]: Boogie Preprocessor took 52.10 ms. Allocated memory is still 67.1 MB. Free memory was 49.7 MB in the beginning and 47.5 MB in the end (delta: 2.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 03:35:37,688 INFO L168 Benchmark]: RCFGBuilder took 10238.50 ms. Allocated memory is still 67.1 MB. Free memory was 47.5 MB in the beginning and 35.0 MB in the end (delta: 12.5 MB). Peak memory consumption was 18.6 MB. Max. memory is 16.1 GB. [2020-11-30 03:35:37,689 INFO L168 Benchmark]: TraceAbstraction took 21546.35 ms. Allocated memory was 67.1 MB in the beginning and 81.8 MB in the end (delta: 14.7 MB). Free memory was 34.7 MB in the beginning and 55.2 MB in the end (delta: -20.5 MB). Peak memory consumption was 18.3 MB. Max. memory is 16.1 GB. [2020-11-30 03:35:37,689 INFO L168 Benchmark]: Witness Printer took 139.57 ms. Allocated memory is still 81.8 MB. Free memory was 55.1 MB in the beginning and 48.1 MB in the end (delta: 7.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 03:35:37,692 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 52.4 MB. Free memory is still 34.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 410.42 ms. Allocated memory is still 52.4 MB. Free memory was 29.6 MB in the beginning and 30.6 MB in the end (delta: -970.4 kB). Peak memory consumption was 7.1 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 125.19 ms. Allocated memory was 52.4 MB in the beginning and 67.1 MB in the end (delta: 14.7 MB). Free memory was 30.6 MB in the beginning and 49.7 MB in the end (delta: -19.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 52.10 ms. Allocated memory is still 67.1 MB. Free memory was 49.7 MB in the beginning and 47.5 MB in the end (delta: 2.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 10238.50 ms. Allocated memory is still 67.1 MB. Free memory was 47.5 MB in the beginning and 35.0 MB in the end (delta: 12.5 MB). Peak memory consumption was 18.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 21546.35 ms. Allocated memory was 67.1 MB in the beginning and 81.8 MB in the end (delta: 14.7 MB). Free memory was 34.7 MB in the beginning and 55.2 MB in the end (delta: -20.5 MB). Peak memory consumption was 18.3 MB. Max. memory is 16.1 GB. * Witness Printer took 139.57 ms. Allocated memory is still 81.8 MB. Free memory was 55.1 MB in the beginning and 48.1 MB in the end (delta: 7.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 15]: Loop Invariant [2020-11-30 03:35:37,699 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 03:35:37,699 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 03:35:37,699 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 03:35:37,700 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 03:35:37,700 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 03:35:37,700 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 03:35:37,700 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 03:35:37,701 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 03:35:37,701 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 03:35:37,701 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 03:35:37,701 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 03:35:37,702 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((\result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x) && 1bv32 == \result - InvariantResult [Line: 113]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 99]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 38]: Loop Invariant [2020-11-30 03:35:37,702 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 03:35:37,703 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 03:35:37,703 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 03:35:37,703 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 03:35:37,703 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 03:35:37,703 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 03:35:37,704 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 03:35:37,704 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 03:35:37,704 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 03:35:37,704 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 03:35:37,705 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 03:35:37,705 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (\result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x - InvariantResult [Line: 43]: Loop Invariant [2020-11-30 03:35:37,705 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 03:35:37,705 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-30 03:35:37,706 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 03:35:37,706 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 03:35:37,706 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-30 03:35:37,706 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x) - InvariantResult [Line: 86]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 38 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 21.2s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 17.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 79 SDtfs, 35 SDslu, 195 SDs, 0 SdLazy, 96 SolverSat, 2 SolverUnsat, 6 SolverUnknown, 0 SolverNotchecked, 16.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 61 GetRequests, 37 SyntacticMatches, 3 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred in iteration=0, 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, 3 MinimizatonAttempts, 8 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 10 NumberOfFragments, 61 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 6 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.7s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 56 ConstructedInterpolants, 5 QuantifiedInterpolants, 3107 SizeOfPredicates, 15 NumberOfNonLiveVariables, 235 ConjunctsInSsa, 22 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 proved your program to be correct! Received shutdown request...