./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 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5494ebfd-0f82-4bcf-bdf3-5dd1a75b17a5/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5494ebfd-0f82-4bcf-bdf3-5dd1a75b17a5/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5494ebfd-0f82-4bcf-bdf3-5dd1a75b17a5/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5494ebfd-0f82-4bcf-bdf3-5dd1a75b17a5/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0831.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5494ebfd-0f82-4bcf-bdf3-5dd1a75b17a5/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5494ebfd-0f82-4bcf-bdf3-5dd1a75b17a5/bin/utaipan-WLngWcDbfI --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_worker_vcloud-master_on_vcloud-master/run_dir_5494ebfd-0f82-4bcf-bdf3-5dd1a75b17a5/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5494ebfd-0f82-4bcf-bdf3-5dd1a75b17a5/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5494ebfd-0f82-4bcf-bdf3-5dd1a75b17a5/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5494ebfd-0f82-4bcf-bdf3-5dd1a75b17a5/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0831.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5494ebfd-0f82-4bcf-bdf3-5dd1a75b17a5/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5494ebfd-0f82-4bcf-bdf3-5dd1a75b17a5/bin/utaipan-WLngWcDbfI --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 0.2.0-7b2dab5 [2021-10-11 02:31:44,338 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:31:44,340 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:31:44,371 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:31:44,372 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:31:44,373 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:31:44,375 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:31:44,378 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:31:44,381 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:31:44,382 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:31:44,384 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:31:44,385 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:31:44,386 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:31:44,388 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:31:44,389 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:31:44,391 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:31:44,392 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:31:44,393 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:31:44,396 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:31:44,399 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:31:44,401 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:31:44,402 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:31:44,404 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:31:44,406 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:31:44,409 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:31:44,410 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:31:44,411 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:31:44,412 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:31:44,413 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:31:44,414 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:31:44,415 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:31:44,416 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:31:44,417 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:31:44,419 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:31:44,420 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:31:44,421 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:31:44,422 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:31:44,422 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:31:44,423 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:31:44,424 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:31:44,426 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:31:44,427 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5494ebfd-0f82-4bcf-bdf3-5dd1a75b17a5/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-11 02:31:44,453 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:31:44,454 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:31:44,455 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:31:44,455 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:31:44,456 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:31:44,456 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:31:44,456 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:31:44,457 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:31:44,457 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:31:44,457 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:31:44,458 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:31:44,458 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:31:44,459 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:31:44,459 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:31:44,459 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:31:44,460 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:31:44,461 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:31:44,461 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:31:44,462 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:31:44,462 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:31:44,462 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:31:44,462 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:31:44,463 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:31:44,463 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:31:44,463 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:31:44,464 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:31:44,464 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:31:44,464 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:31:44,465 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:31:44,465 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:31:44,465 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:31:44,466 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:31:44,466 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:31:44,466 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:31:44,467 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:31:44,467 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:31:44,467 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:31:44,468 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:31:44,468 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:31:44,468 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5494ebfd-0f82-4bcf-bdf3-5dd1a75b17a5/bin/utaipan-WLngWcDbfI/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5494ebfd-0f82-4bcf-bdf3-5dd1a75b17a5/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3f171dd4f575b92a9302785470b2bac89695cbf3 [2021-10-11 02:31:44,727 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:31:44,778 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:31:44,786 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:31:44,787 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:31:44,791 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:31:44,792 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5494ebfd-0f82-4bcf-bdf3-5dd1a75b17a5/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/float-newlib/float_req_bl_0831.c [2021-10-11 02:31:44,882 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5494ebfd-0f82-4bcf-bdf3-5dd1a75b17a5/bin/utaipan-WLngWcDbfI/data/681642cba/d8df138903764e8c96c8fbd7fb307bc3/FLAG89c7e63a2 [2021-10-11 02:31:45,405 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:31:45,406 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5494ebfd-0f82-4bcf-bdf3-5dd1a75b17a5/sv-benchmarks/c/float-newlib/float_req_bl_0831.c [2021-10-11 02:31:45,426 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5494ebfd-0f82-4bcf-bdf3-5dd1a75b17a5/bin/utaipan-WLngWcDbfI/data/681642cba/d8df138903764e8c96c8fbd7fb307bc3/FLAG89c7e63a2 [2021-10-11 02:31:45,778 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5494ebfd-0f82-4bcf-bdf3-5dd1a75b17a5/bin/utaipan-WLngWcDbfI/data/681642cba/d8df138903764e8c96c8fbd7fb307bc3 [2021-10-11 02:31:45,782 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:31:45,786 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:31:45,790 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:31:45,791 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:31:45,795 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:31:45,797 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:31:45" (1/1) ... [2021-10-11 02:31:45,803 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d01f766 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:45, skipping insertion in model container [2021-10-11 02:31:45,804 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:31:45" (1/1) ... [2021-10-11 02:31:45,812 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:31:45,845 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:31:46,160 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5494ebfd-0f82-4bcf-bdf3-5dd1a75b17a5/sv-benchmarks/c/float-newlib/float_req_bl_0831.c[3205,3218] [2021-10-11 02:31:46,163 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:31:46,173 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:31:46,211 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5494ebfd-0f82-4bcf-bdf3-5dd1a75b17a5/sv-benchmarks/c/float-newlib/float_req_bl_0831.c[3205,3218] [2021-10-11 02:31:46,212 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:31:46,241 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:31:46,243 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:46 WrapperNode [2021-10-11 02:31:46,243 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:31:46,245 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:31:46,246 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:31:46,246 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:31:46,255 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:46" (1/1) ... [2021-10-11 02:31:46,266 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:46" (1/1) ... [2021-10-11 02:31:46,295 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:31:46,296 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:31:46,296 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:31:46,296 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:31:46,306 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:46" (1/1) ... [2021-10-11 02:31:46,306 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:46" (1/1) ... [2021-10-11 02:31:46,310 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:46" (1/1) ... [2021-10-11 02:31:46,311 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:46" (1/1) ... [2021-10-11 02:31:46,321 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:46" (1/1) ... [2021-10-11 02:31:46,327 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:46" (1/1) ... [2021-10-11 02:31:46,330 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:46" (1/1) ... [2021-10-11 02:31:46,333 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:31:46,334 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:31:46,335 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:31:46,335 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:31:46,336 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:46" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5494ebfd-0f82-4bcf-bdf3-5dd1a75b17a5/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:31:46,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 02:31:46,450 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:31:46,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-11 02:31:46,450 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-10-11 02:31:46,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-10-11 02:31:46,451 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:31:46,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:31:46,453 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-11 02:31:46,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-10-11 02:31:46,453 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-11 02:31:47,254 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:31:47,254 INFO L299 CfgBuilder]: Removed 18 assume(true) statements. [2021-10-11 02:31:47,257 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:31:47 BoogieIcfgContainer [2021-10-11 02:31:47,257 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:31:47,258 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:31:47,259 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:31:47,262 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:31:47,262 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:31:45" (1/3) ... [2021-10-11 02:31:47,263 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74c33111 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:31:47, skipping insertion in model container [2021-10-11 02:31:47,263 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:46" (2/3) ... [2021-10-11 02:31:47,264 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74c33111 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:31:47, skipping insertion in model container [2021-10-11 02:31:47,264 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:31:47" (3/3) ... [2021-10-11 02:31:47,265 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0831.c [2021-10-11 02:31:47,280 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:31:47,284 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-10-11 02:31:47,295 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-11 02:31:47,319 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:31:47,319 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:31:47,319 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:31:47,319 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:31:47,320 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:31:47,320 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:31:47,320 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:31:47,320 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:31:47,333 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2021-10-11 02:31:47,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-11 02:31:47,338 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:31:47,338 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:31:47,339 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:31:47,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:31:47,344 INFO L82 PathProgramCache]: Analyzing trace with hash 1825979879, now seen corresponding path program 1 times [2021-10-11 02:31:47,354 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:31:47,354 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888128159] [2021-10-11 02:31:47,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:31:47,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:31:47,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:31:47,500 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888128159] [2021-10-11 02:31:47,501 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:31:47,501 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:31:47,502 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269882517] [2021-10-11 02:31:47,506 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 02:31:47,506 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:31:47,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 02:31:47,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:31:47,522 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 2 states. [2021-10-11 02:31:47,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:31:47,539 INFO L93 Difference]: Finished difference Result 59 states and 97 transitions. [2021-10-11 02:31:47,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 02:31:47,541 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2021-10-11 02:31:47,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:31:47,550 INFO L225 Difference]: With dead ends: 59 [2021-10-11 02:31:47,550 INFO L226 Difference]: Without dead ends: 28 [2021-10-11 02:31:47,553 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 [2021-10-11 02:31:47,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2021-10-11 02:31:47,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2021-10-11 02:31:47,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2021-10-11 02:31:47,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 36 transitions. [2021-10-11 02:31:47,586 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 36 transitions. Word has length 7 [2021-10-11 02:31:47,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:31:47,586 INFO L481 AbstractCegarLoop]: Abstraction has 28 states and 36 transitions. [2021-10-11 02:31:47,586 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 02:31:47,586 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 36 transitions. [2021-10-11 02:31:47,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-11 02:31:47,587 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:31:47,587 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:31:47,587 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 02:31:47,587 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:31:47,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:31:47,588 INFO L82 PathProgramCache]: Analyzing trace with hash -1296270310, now seen corresponding path program 1 times [2021-10-11 02:31:47,589 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:31:47,589 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290021681] [2021-10-11 02:31:47,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:31:47,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:31:47,649 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:31:47,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:31:47,718 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:31:47,749 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-11 02:31:47,750 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 02:31:47,751 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-11 02:31:47,781 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:31:47 BoogieIcfgContainer [2021-10-11 02:31:47,781 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:31:47,782 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:31:47,782 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:31:47,782 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:31:47,782 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:31:47" (3/4) ... [2021-10-11 02:31:47,785 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-11 02:31:47,785 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:31:47,788 INFO L168 Benchmark]: Toolchain (without parser) took 2000.21 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 60.6 MB in the beginning and 55.0 MB in the end (delta: 5.6 MB). Peak memory consumption was 24.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:31:47,788 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 92.3 MB. Free memory was 49.5 MB in the beginning and 49.5 MB in the end (delta: 43.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:31:47,789 INFO L168 Benchmark]: CACSL2BoogieTranslator took 454.32 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 60.4 MB in the beginning and 86.1 MB in the end (delta: -25.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:31:47,790 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.74 ms. Allocated memory is still 111.1 MB. Free memory was 86.1 MB in the beginning and 84.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:31:47,791 INFO L168 Benchmark]: Boogie Preprocessor took 37.63 ms. Allocated memory is still 111.1 MB. Free memory was 84.2 MB in the beginning and 82.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:31:47,791 INFO L168 Benchmark]: RCFGBuilder took 922.51 ms. Allocated memory is still 111.1 MB. Free memory was 82.5 MB in the beginning and 80.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 27.5 MB. Max. memory is 16.1 GB. [2021-10-11 02:31:47,792 INFO L168 Benchmark]: TraceAbstraction took 522.67 ms. Allocated memory is still 111.1 MB. Free memory was 80.2 MB in the beginning and 55.5 MB in the end (delta: 24.7 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. [2021-10-11 02:31:47,792 INFO L168 Benchmark]: Witness Printer took 4.02 ms. Allocated memory is still 111.1 MB. Free memory was 55.5 MB in the beginning and 55.0 MB in the end (delta: 482.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:31:47,796 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 92.3 MB. Free memory was 49.5 MB in the beginning and 49.5 MB in the end (delta: 43.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 454.32 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 60.4 MB in the beginning and 86.1 MB in the end (delta: -25.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 49.74 ms. Allocated memory is still 111.1 MB. Free memory was 86.1 MB in the beginning and 84.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 37.63 ms. Allocated memory is still 111.1 MB. Free memory was 84.2 MB in the beginning and 82.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 922.51 ms. Allocated memory is still 111.1 MB. Free memory was 82.5 MB in the beginning and 80.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 27.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 522.67 ms. Allocated memory is still 111.1 MB. Free memory was 80.2 MB in the beginning and 55.5 MB in the end (delta: 24.7 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. * Witness Printer took 4.02 ms. Allocated memory is still 111.1 MB. Free memory was 55.5 MB in the beginning and 55.0 MB in the end (delta: 482.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 123]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 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) [L123] 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: 0.4s, 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, 0.0s 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 0.2.0-7b2dab5 [2021-10-11 02:31:50,292 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:31:50,296 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:31:50,349 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:31:50,350 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:31:50,363 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:31:50,366 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:31:50,371 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:31:50,375 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:31:50,381 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:31:50,385 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:31:50,387 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:31:50,387 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:31:50,390 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:31:50,392 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:31:50,394 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:31:50,396 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:31:50,399 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:31:50,402 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:31:50,406 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:31:50,408 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:31:50,410 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:31:50,413 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:31:50,415 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:31:50,425 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:31:50,425 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:31:50,426 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:31:50,428 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:31:50,429 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:31:50,430 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:31:50,431 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:31:50,432 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:31:50,434 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:31:50,435 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:31:50,436 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:31:50,437 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:31:50,438 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:31:50,438 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:31:50,438 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:31:50,440 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:31:50,441 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:31:50,442 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5494ebfd-0f82-4bcf-bdf3-5dd1a75b17a5/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-11 02:31:50,484 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:31:50,484 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:31:50,486 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:31:50,486 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:31:50,487 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:31:50,487 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:31:50,487 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:31:50,487 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:31:50,488 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:31:50,489 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:31:50,490 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:31:50,491 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:31:50,491 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:31:50,491 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:31:50,491 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:31:50,492 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:31:50,492 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:31:50,492 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-11 02:31:50,492 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-11 02:31:50,492 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:31:50,493 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:31:50,493 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:31:50,493 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:31:50,493 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:31:50,494 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 02:31:50,494 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:31:50,494 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:31:50,494 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:31:50,494 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:31:50,495 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:31:50,495 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-11 02:31:50,495 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-11 02:31:50,495 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:31:50,496 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:31:50,496 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:31:50,496 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5494ebfd-0f82-4bcf-bdf3-5dd1a75b17a5/bin/utaipan-WLngWcDbfI/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5494ebfd-0f82-4bcf-bdf3-5dd1a75b17a5/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3f171dd4f575b92a9302785470b2bac89695cbf3 [2021-10-11 02:31:50,924 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:31:50,947 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:31:50,950 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:31:50,951 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:31:50,952 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:31:50,953 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5494ebfd-0f82-4bcf-bdf3-5dd1a75b17a5/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/float-newlib/float_req_bl_0831.c [2021-10-11 02:31:51,018 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5494ebfd-0f82-4bcf-bdf3-5dd1a75b17a5/bin/utaipan-WLngWcDbfI/data/b8f6fbd55/d24e24c7fa684d21b66e56b041b05670/FLAG4b5ee379e [2021-10-11 02:31:51,468 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:31:51,469 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5494ebfd-0f82-4bcf-bdf3-5dd1a75b17a5/sv-benchmarks/c/float-newlib/float_req_bl_0831.c [2021-10-11 02:31:51,482 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5494ebfd-0f82-4bcf-bdf3-5dd1a75b17a5/bin/utaipan-WLngWcDbfI/data/b8f6fbd55/d24e24c7fa684d21b66e56b041b05670/FLAG4b5ee379e [2021-10-11 02:31:51,882 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5494ebfd-0f82-4bcf-bdf3-5dd1a75b17a5/bin/utaipan-WLngWcDbfI/data/b8f6fbd55/d24e24c7fa684d21b66e56b041b05670 [2021-10-11 02:31:51,884 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:31:51,888 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:31:51,892 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:31:51,892 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:31:51,896 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:31:51,897 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:31:51" (1/1) ... [2021-10-11 02:31:51,900 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c44cd3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:51, skipping insertion in model container [2021-10-11 02:31:51,900 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:31:51" (1/1) ... [2021-10-11 02:31:51,908 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:31:51,942 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:31:52,192 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5494ebfd-0f82-4bcf-bdf3-5dd1a75b17a5/sv-benchmarks/c/float-newlib/float_req_bl_0831.c[3205,3218] [2021-10-11 02:31:52,195 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:31:52,221 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:31:52,287 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5494ebfd-0f82-4bcf-bdf3-5dd1a75b17a5/sv-benchmarks/c/float-newlib/float_req_bl_0831.c[3205,3218] [2021-10-11 02:31:52,288 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:31:52,308 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:31:52,308 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:52 WrapperNode [2021-10-11 02:31:52,309 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:31:52,310 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:31:52,310 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:31:52,310 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:31:52,317 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:52" (1/1) ... [2021-10-11 02:31:52,330 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:52" (1/1) ... [2021-10-11 02:31:52,357 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:31:52,358 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:31:52,358 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:31:52,358 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:31:52,367 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:52" (1/1) ... [2021-10-11 02:31:52,367 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:52" (1/1) ... [2021-10-11 02:31:52,387 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:52" (1/1) ... [2021-10-11 02:31:52,387 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:52" (1/1) ... [2021-10-11 02:31:52,397 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:52" (1/1) ... [2021-10-11 02:31:52,403 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:52" (1/1) ... [2021-10-11 02:31:52,407 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:52" (1/1) ... [2021-10-11 02:31:52,411 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:31:52,412 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:31:52,413 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:31:52,413 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:31:52,414 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:52" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5494ebfd-0f82-4bcf-bdf3-5dd1a75b17a5/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:31:52,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2021-10-11 02:31:52,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-11 02:31:52,513 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:31:52,513 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-10-11 02:31:52,513 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-11 02:31:52,513 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:31:52,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:31:52,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-10-11 02:31:52,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-11 02:31:52,515 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-11 02:32:02,496 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:32:02,496 INFO L299 CfgBuilder]: Removed 18 assume(true) statements. [2021-10-11 02:32:02,498 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:32:02 BoogieIcfgContainer [2021-10-11 02:32:02,498 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:32:02,500 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:32:02,501 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:32:02,504 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:32:02,504 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:31:51" (1/3) ... [2021-10-11 02:32:02,505 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75389fe8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:32:02, skipping insertion in model container [2021-10-11 02:32:02,505 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:31:52" (2/3) ... [2021-10-11 02:32:02,506 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75389fe8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:32:02, skipping insertion in model container [2021-10-11 02:32:02,506 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:32:02" (3/3) ... [2021-10-11 02:32:02,507 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0831.c [2021-10-11 02:32:02,521 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:32:02,525 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-10-11 02:32:02,536 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-11 02:32:02,560 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:32:02,560 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:32:02,560 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:32:02,561 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:32:02,561 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:32:02,561 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:32:02,561 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:32:02,561 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:32:02,574 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2021-10-11 02:32:02,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-11 02:32:02,579 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:02,579 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:32:02,580 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:32:02,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:02,584 INFO L82 PathProgramCache]: Analyzing trace with hash -1903272656, now seen corresponding path program 1 times [2021-10-11 02:32:02,594 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:32:02,594 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [908331145] [2021-10-11 02:32:02,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5494ebfd-0f82-4bcf-bdf3-5dd1a75b17a5/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:32:03,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:03,202 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-11 02:32:03,206 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:32:03,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:03,234 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:32:03,234 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [908331145] [2021-10-11 02:32:03,235 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:32:03,235 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:32:03,236 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618689326] [2021-10-11 02:32:03,239 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 02:32:03,240 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:32:03,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 02:32:03,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:32:03,255 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 2 states. [2021-10-11 02:32:03,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:03,274 INFO L93 Difference]: Finished difference Result 72 states and 114 transitions. [2021-10-11 02:32:03,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 02:32:03,275 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2021-10-11 02:32:03,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:03,284 INFO L225 Difference]: With dead ends: 72 [2021-10-11 02:32:03,284 INFO L226 Difference]: Without dead ends: 34 [2021-10-11 02:32:03,287 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:32:03,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2021-10-11 02:32:03,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2021-10-11 02:32:03,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2021-10-11 02:32:03,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 44 transitions. [2021-10-11 02:32:03,350 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 44 transitions. Word has length 9 [2021-10-11 02:32:03,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:03,351 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 44 transitions. [2021-10-11 02:32:03,351 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 02:32:03,351 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 44 transitions. [2021-10-11 02:32:03,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-11 02:32:03,352 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:03,352 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:32:03,567 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2021-10-11 02:32:03,569 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:32:03,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:03,570 INFO L82 PathProgramCache]: Analyzing trace with hash 1485078157, now seen corresponding path program 1 times [2021-10-11 02:32:03,570 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:32:03,570 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1923281412] [2021-10-11 02:32:03,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5494ebfd-0f82-4bcf-bdf3-5dd1a75b17a5/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:32:04,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:04,050 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-11 02:32:04,052 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:32:04,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:04,339 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:32:04,339 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1923281412] [2021-10-11 02:32:04,339 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:32:04,340 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-11 02:32:04,340 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573684875] [2021-10-11 02:32:04,341 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-10-11 02:32:04,341 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:32:04,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-11 02:32:04,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-10-11 02:32:04,343 INFO L87 Difference]: Start difference. First operand 34 states and 44 transitions. Second operand 7 states. [2021-10-11 02:32:17,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:17,479 INFO L93 Difference]: Finished difference Result 50 states and 58 transitions. [2021-10-11 02:32:17,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-11 02:32:17,480 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 10 [2021-10-11 02:32:17,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:17,481 INFO L225 Difference]: With dead ends: 50 [2021-10-11 02:32:17,481 INFO L226 Difference]: Without dead ends: 42 [2021-10-11 02:32:17,482 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-10-11 02:32:17,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2021-10-11 02:32:17,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 34. [2021-10-11 02:32:17,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2021-10-11 02:32:17,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 42 transitions. [2021-10-11 02:32:17,489 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 42 transitions. Word has length 10 [2021-10-11 02:32:17,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:17,489 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 42 transitions. [2021-10-11 02:32:17,489 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-10-11 02:32:17,490 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 42 transitions. [2021-10-11 02:32:17,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-11 02:32:17,490 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:17,491 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:32:17,712 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2021-10-11 02:32:17,713 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:32:17,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:17,714 INFO L82 PathProgramCache]: Analyzing trace with hash 228797714, now seen corresponding path program 1 times [2021-10-11 02:32:17,714 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:32:17,714 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [451622777] [2021-10-11 02:32:17,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5494ebfd-0f82-4bcf-bdf3-5dd1a75b17a5/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:32:18,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:18,254 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-11 02:32:18,256 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:32:18,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 02:32:18,522 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:32:18,522 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [451622777] [2021-10-11 02:32:18,522 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:32:18,522 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 02:32:18,523 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18573119] [2021-10-11 02:32:18,523 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:32:18,523 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:32:18,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:32:18,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:32:18,525 INFO L87 Difference]: Start difference. First operand 34 states and 42 transitions. Second operand 5 states. [2021-10-11 02:32:18,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:18,749 INFO L93 Difference]: Finished difference Result 34 states and 42 transitions. [2021-10-11 02:32:18,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 02:32:18,750 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2021-10-11 02:32:18,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:18,750 INFO L225 Difference]: With dead ends: 34 [2021-10-11 02:32:18,750 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 02:32:18,751 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-10-11 02:32:18,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 02:32:18,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 02:32:18,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 02:32:18,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 02:32:18,752 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2021-10-11 02:32:18,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:18,752 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 02:32:18,752 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:32:18,753 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 02:32:18,753 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 02:32:18,953 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2021-10-11 02:32:18,955 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-11 02:32:19,203 INFO L262 CegarLoopResult]: For program point L60(lines 60 75) no Hoare annotation was computed. [2021-10-11 02:32:19,204 INFO L265 CegarLoopResult]: At program point L127(lines 113 128) the Hoare annotation is: true [2021-10-11 02:32:19,204 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-11 02:32:19,204 INFO L262 CegarLoopResult]: For program point L61(lines 61 70) no Hoare annotation was computed. [2021-10-11 02:32:19,204 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-11 02:32:19,204 INFO L262 CegarLoopResult]: For program point L61-2(lines 61 70) no Hoare annotation was computed. [2021-10-11 02:32:19,204 INFO L262 CegarLoopResult]: For program point L53(lines 53 54) no Hoare annotation was computed. [2021-10-11 02:32:19,205 INFO L262 CegarLoopResult]: For program point L86-1(lines 86 90) no Hoare annotation was computed. [2021-10-11 02:32:19,205 INFO L258 CegarLoopResult]: At program point L86-2(lines 86 90) the Hoare annotation is: false [2021-10-11 02:32:19,205 INFO L262 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2021-10-11 02:32:19,205 INFO L262 CegarLoopResult]: For program point L54-2(line 54) no Hoare annotation was computed. [2021-10-11 02:32:19,205 INFO L262 CegarLoopResult]: For program point L104(lines 104 108) no Hoare annotation was computed. [2021-10-11 02:32:19,205 INFO L262 CegarLoopResult]: For program point L104-1(lines 97 110) no Hoare annotation was computed. [2021-10-11 02:32:19,206 INFO L262 CegarLoopResult]: For program point L104-2(lines 104 108) no Hoare annotation was computed. [2021-10-11 02:32:19,206 INFO L262 CegarLoopResult]: For program point L55(lines 55 56) no Hoare annotation was computed. [2021-10-11 02:32:19,206 INFO L262 CegarLoopResult]: For program point L80(lines 80 83) no Hoare annotation was computed. [2021-10-11 02:32:19,206 INFO L262 CegarLoopResult]: For program point L72(lines 72 75) no Hoare annotation was computed. [2021-10-11 02:32:19,206 INFO L262 CegarLoopResult]: For program point L72-2(lines 60 75) no Hoare annotation was computed. [2021-10-11 02:32:19,206 INFO L262 CegarLoopResult]: For program point L122(lines 122 125) no Hoare annotation was computed. [2021-10-11 02:32:19,207 INFO L258 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|)) [2021-10-11 02:32:19,207 INFO L262 CegarLoopResult]: For program point L73(lines 73 74) no Hoare annotation was computed. [2021-10-11 02:32:19,207 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-11 02:32:19,207 INFO L262 CegarLoopResult]: For program point L123(line 123) no Hoare annotation was computed. [2021-10-11 02:32:19,207 INFO L262 CegarLoopResult]: For program point L57(lines 57 58) no Hoare annotation was computed. [2021-10-11 02:32:19,207 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 123) no Hoare annotation was computed. [2021-10-11 02:32:19,208 INFO L262 CegarLoopResult]: For program point L99-1(lines 99 103) no Hoare annotation was computed. [2021-10-11 02:32:19,208 INFO L258 CegarLoopResult]: At program point L99-2(lines 99 103) the Hoare annotation is: false [2021-10-11 02:32:19,208 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-11 02:32:19,208 INFO L262 CegarLoopResult]: For program point L91(lines 91 95) no Hoare annotation was computed. [2021-10-11 02:32:19,208 INFO L262 CegarLoopResult]: For program point L91-1(lines 84 97) no Hoare annotation was computed. [2021-10-11 02:32:19,208 INFO L262 CegarLoopResult]: For program point L91-2(lines 91 95) no Hoare annotation was computed. [2021-10-11 02:32:19,208 INFO L262 CegarLoopResult]: For program point L84(lines 84 110) no Hoare annotation was computed. [2021-10-11 02:32:19,209 INFO L262 CegarLoopResult]: For program point L51(lines 51 52) no Hoare annotation was computed. [2021-10-11 02:32:19,209 INFO L258 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)) [2021-10-11 02:32:19,209 INFO L262 CegarLoopResult]: For program point L43-1(lines 43 47) no Hoare annotation was computed. [2021-10-11 02:32:19,209 INFO L258 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))) [2021-10-11 02:32:19,209 INFO L262 CegarLoopResult]: For program point L43-3(lines 43 47) no Hoare annotation was computed. [2021-10-11 02:32:19,223 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:32:19,224 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:32:19,224 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:32:19,224 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:32:19,231 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:32:19,231 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:32:19,232 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:32:19,232 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:32:19,233 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:32:19,233 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:32:19,234 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:32:19,234 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:32:19,235 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:32:19,235 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:32:19,235 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:32:19,236 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:32:19,238 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:32:19,238 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-11 02:32:19,240 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:32:19,240 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-11 02:32:19,242 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:32:19 BoogieIcfgContainer [2021-10-11 02:32:19,242 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:32:19,243 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:32:19,243 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:32:19,243 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:32:19,244 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:32:02" (3/4) ... [2021-10-11 02:32:19,247 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-11 02:32:19,266 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2021-10-11 02:32:19,267 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-11 02:32:19,267 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:32:19,269 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:32:19,296 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x) [2021-10-11 02:32:19,296 WARN L220 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 [2021-10-11 02:32:19,298 WARN L220 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 [2021-10-11 02:32:19,359 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5494ebfd-0f82-4bcf-bdf3-5dd1a75b17a5/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:32:19,359 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:32:19,361 INFO L168 Benchmark]: Toolchain (without parser) took 27472.13 ms. Allocated memory was 67.1 MB in the beginning and 81.8 MB in the end (delta: 14.7 MB). Free memory was 46.7 MB in the beginning and 45.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 19.0 MB. Max. memory is 16.1 GB. [2021-10-11 02:32:19,362 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 67.1 MB. Free memory is still 48.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:32:19,363 INFO L168 Benchmark]: CACSL2BoogieTranslator took 416.91 ms. Allocated memory is still 67.1 MB. Free memory was 46.6 MB in the beginning and 33.7 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-11 02:32:19,365 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.60 ms. Allocated memory is still 67.1 MB. Free memory was 33.7 MB in the beginning and 31.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:32:19,366 INFO L168 Benchmark]: Boogie Preprocessor took 53.83 ms. Allocated memory is still 67.1 MB. Free memory was 31.6 MB in the beginning and 49.0 MB in the end (delta: -17.4 MB). Peak memory consumption was 5.7 MB. Max. memory is 16.1 GB. [2021-10-11 02:32:19,367 INFO L168 Benchmark]: RCFGBuilder took 10086.12 ms. Allocated memory was 67.1 MB in the beginning and 81.8 MB in the end (delta: 14.7 MB). Free memory was 49.0 MB in the beginning and 60.2 MB in the end (delta: -11.2 MB). Peak memory consumption was 27.0 MB. Max. memory is 16.1 GB. [2021-10-11 02:32:19,367 INFO L168 Benchmark]: TraceAbstraction took 16741.73 ms. Allocated memory is still 81.8 MB. Free memory was 59.9 MB in the beginning and 51.4 MB in the end (delta: 8.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:32:19,367 INFO L168 Benchmark]: Witness Printer took 116.44 ms. Allocated memory is still 81.8 MB. Free memory was 51.4 MB in the beginning and 45.1 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-11 02:32:19,370 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 67.1 MB. Free memory is still 48.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 416.91 ms. Allocated memory is still 67.1 MB. Free memory was 46.6 MB in the beginning and 33.7 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 47.60 ms. Allocated memory is still 67.1 MB. Free memory was 33.7 MB in the beginning and 31.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 53.83 ms. Allocated memory is still 67.1 MB. Free memory was 31.6 MB in the beginning and 49.0 MB in the end (delta: -17.4 MB). Peak memory consumption was 5.7 MB. Max. memory is 16.1 GB. * RCFGBuilder took 10086.12 ms. Allocated memory was 67.1 MB in the beginning and 81.8 MB in the end (delta: 14.7 MB). Free memory was 49.0 MB in the beginning and 60.2 MB in the end (delta: -11.2 MB). Peak memory consumption was 27.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 16741.73 ms. Allocated memory is still 81.8 MB. Free memory was 59.9 MB in the beginning and 51.4 MB in the end (delta: 8.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 16.1 GB. * Witness Printer took 116.44 ms. Allocated memory is still 81.8 MB. Free memory was 51.4 MB in the beginning and 45.1 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 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.traceabstraction: - PositiveResult [Line: 123]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 15]: Loop Invariant [2021-10-11 02:32:19,379 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:32:19,379 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:32:19,379 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:32:19,380 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:32:19,380 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:32:19,381 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:32:19,381 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:32:19,381 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven 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 [2021-10-11 02:32:19,382 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:32:19,383 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:32:19,383 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:32:19,383 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:32:19,384 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:32:19,384 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:32:19,384 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:32:19,390 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven 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 [2021-10-11 02:32:19,397 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:32:19,397 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-11 02:32:19,397 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:32:19,398 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] 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, 37 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 16.3s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 13.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 79 SDtfs, 57 SDslu, 102 SDs, 0 SdLazy, 57 SolverSat, 2 SolverUnsat, 5 SolverUnknown, 0 SolverNotchecked, 12.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 33 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred 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, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 28 ConstructedInterpolants, 4 QuantifiedInterpolants, 1271 SizeOfPredicates, 14 NumberOfNonLiveVariables, 231 ConjunctsInSsa, 22 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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...