./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0720.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_f114504b-8025-477c-bc6f-65b14fb631fd/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f114504b-8025-477c-bc6f-65b14fb631fd/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_f114504b-8025-477c-bc6f-65b14fb631fd/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f114504b-8025-477c-bc6f-65b14fb631fd/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0720.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f114504b-8025-477c-bc6f-65b14fb631fd/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_f114504b-8025-477c-bc6f-65b14fb631fd/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 3a46db52b19fb11eeacebca884b6de40c52cb082 ......................................................................................................................................................................................................................................................................................................... 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_f114504b-8025-477c-bc6f-65b14fb631fd/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f114504b-8025-477c-bc6f-65b14fb631fd/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_f114504b-8025-477c-bc6f-65b14fb631fd/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f114504b-8025-477c-bc6f-65b14fb631fd/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0720.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f114504b-8025-477c-bc6f-65b14fb631fd/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_f114504b-8025-477c-bc6f-65b14fb631fd/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 3a46db52b19fb11eeacebca884b6de40c52cb082 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 02:23:30,237 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:23:30,239 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:23:30,292 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:23:30,293 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:23:30,299 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:23:30,302 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:23:30,307 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:23:30,310 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:23:30,318 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:23:30,320 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:23:30,321 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:23:30,322 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:23:30,326 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:23:30,328 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:23:30,331 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:23:30,333 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:23:30,339 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:23:30,342 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:23:30,354 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:23:30,356 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:23:30,358 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:23:30,362 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:23:30,364 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:23:30,368 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:23:30,369 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:23:30,370 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:23:30,373 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:23:30,374 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:23:30,376 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:23:30,376 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:23:30,378 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:23:30,380 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:23:30,382 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:23:30,384 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:23:30,385 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:23:30,386 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:23:30,386 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:23:30,387 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:23:30,388 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:23:30,389 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:23:30,392 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f114504b-8025-477c-bc6f-65b14fb631fd/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-11 02:23:30,446 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:23:30,449 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:23:30,452 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:23:30,452 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:23:30,452 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:23:30,453 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:23:30,453 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:23:30,453 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:23:30,453 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:23:30,454 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:23:30,462 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:23:30,463 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:23:30,463 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:23:30,463 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:23:30,464 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:23:30,464 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:23:30,465 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:23:30,465 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:23:30,465 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:23:30,465 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:23:30,466 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:23:30,466 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:23:30,466 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:23:30,467 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:23:30,467 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:23:30,467 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:23:30,467 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:23:30,468 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:23:30,468 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:23:30,470 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:23:30,471 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:23:30,471 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:23:30,471 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:23:30,472 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:23:30,472 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:23:30,472 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:23:30,472 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:23:30,473 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:23:30,473 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:23:30,473 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_f114504b-8025-477c-bc6f-65b14fb631fd/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f114504b-8025-477c-bc6f-65b14fb631fd/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3a46db52b19fb11eeacebca884b6de40c52cb082 [2021-10-11 02:23:30,802 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:23:30,842 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:23:30,847 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:23:30,850 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:23:30,851 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:23:30,852 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f114504b-8025-477c-bc6f-65b14fb631fd/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/float-newlib/float_req_bl_0720.c [2021-10-11 02:23:30,942 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f114504b-8025-477c-bc6f-65b14fb631fd/bin/utaipan-WLngWcDbfI/data/7a356ed07/787180e26f874230b85b057406898079/FLAG895248df5 [2021-10-11 02:23:31,483 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:23:31,484 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f114504b-8025-477c-bc6f-65b14fb631fd/sv-benchmarks/c/float-newlib/float_req_bl_0720.c [2021-10-11 02:23:31,493 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f114504b-8025-477c-bc6f-65b14fb631fd/bin/utaipan-WLngWcDbfI/data/7a356ed07/787180e26f874230b85b057406898079/FLAG895248df5 [2021-10-11 02:23:31,851 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f114504b-8025-477c-bc6f-65b14fb631fd/bin/utaipan-WLngWcDbfI/data/7a356ed07/787180e26f874230b85b057406898079 [2021-10-11 02:23:31,855 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:23:31,859 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:23:31,863 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:23:31,864 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:23:31,877 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:23:31,878 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:23:31" (1/1) ... [2021-10-11 02:23:31,882 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74d3cb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:23:31, skipping insertion in model container [2021-10-11 02:23:31,882 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:23:31" (1/1) ... [2021-10-11 02:23:31,892 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:23:31,930 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:23:32,150 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_f114504b-8025-477c-bc6f-65b14fb631fd/sv-benchmarks/c/float-newlib/float_req_bl_0720.c[1929,1942] [2021-10-11 02:23:32,154 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:23:32,164 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:23:32,198 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_f114504b-8025-477c-bc6f-65b14fb631fd/sv-benchmarks/c/float-newlib/float_req_bl_0720.c[1929,1942] [2021-10-11 02:23:32,199 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:23:32,216 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:23:32,217 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:23:32 WrapperNode [2021-10-11 02:23:32,217 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:23:32,218 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:23:32,218 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:23:32,219 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:23:32,227 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:23:32" (1/1) ... [2021-10-11 02:23:32,238 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:23:32" (1/1) ... [2021-10-11 02:23:32,266 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:23:32,267 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:23:32,267 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:23:32,267 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:23:32,277 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:23:32" (1/1) ... [2021-10-11 02:23:32,278 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:23:32" (1/1) ... [2021-10-11 02:23:32,281 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:23:32" (1/1) ... [2021-10-11 02:23:32,282 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:23:32" (1/1) ... [2021-10-11 02:23:32,290 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:23:32" (1/1) ... [2021-10-11 02:23:32,295 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:23:32" (1/1) ... [2021-10-11 02:23:32,298 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:23:32" (1/1) ... [2021-10-11 02:23:32,301 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:23:32,302 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:23:32,303 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:23:32,303 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:23:32,304 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:23:32" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f114504b-8025-477c-bc6f-65b14fb631fd/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 02:23:32,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 02:23:32,430 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:23:32,430 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-10-11 02:23:32,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-11 02:23:32,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-10-11 02:23:32,431 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:23:32,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:23:32,433 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-11 02:23:32,434 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-11 02:23:33,135 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:23:33,136 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2021-10-11 02:23:33,138 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:23:33 BoogieIcfgContainer [2021-10-11 02:23:33,138 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:23:33,140 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:23:33,140 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:23:33,144 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:23:33,145 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:23:31" (1/3) ... [2021-10-11 02:23:33,146 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10fb5848 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:23:33, skipping insertion in model container [2021-10-11 02:23:33,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:23:32" (2/3) ... [2021-10-11 02:23:33,147 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10fb5848 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:23:33, skipping insertion in model container [2021-10-11 02:23:33,147 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:23:33" (3/3) ... [2021-10-11 02:23:33,148 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0720.c [2021-10-11 02:23:33,164 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:23:33,168 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-10-11 02:23:33,181 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-11 02:23:33,210 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:23:33,211 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:23:33,211 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:23:33,211 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:23:33,211 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:23:33,211 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:23:33,212 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:23:33,212 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:23:33,226 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2021-10-11 02:23:33,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-11 02:23:33,232 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:23:33,233 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:23:33,233 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:23:33,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:23:33,240 INFO L82 PathProgramCache]: Analyzing trace with hash 1398311657, now seen corresponding path program 1 times [2021-10-11 02:23:33,267 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:23:33,269 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469995074] [2021-10-11 02:23:33,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:23:33,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:23:33,488 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 02:23:33,489 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469995074] [2021-10-11 02:23:33,491 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:23:33,491 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:23:33,492 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462291115] [2021-10-11 02:23:33,497 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 02:23:33,498 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:23:33,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 02:23:33,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:23:33,523 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 2 states. [2021-10-11 02:23:33,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:23:33,562 INFO L93 Difference]: Finished difference Result 39 states and 59 transitions. [2021-10-11 02:23:33,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 02:23:33,564 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2021-10-11 02:23:33,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:23:33,575 INFO L225 Difference]: With dead ends: 39 [2021-10-11 02:23:33,576 INFO L226 Difference]: Without dead ends: 18 [2021-10-11 02:23:33,583 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 02:23:33,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2021-10-11 02:23:33,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2021-10-11 02:23:33,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-10-11 02:23:33,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 23 transitions. [2021-10-11 02:23:33,623 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 23 transitions. Word has length 7 [2021-10-11 02:23:33,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:23:33,624 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 23 transitions. [2021-10-11 02:23:33,624 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 02:23:33,625 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 23 transitions. [2021-10-11 02:23:33,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-11 02:23:33,625 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:23:33,626 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:23:33,626 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 02:23:33,626 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:23:33,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:23:33,630 INFO L82 PathProgramCache]: Analyzing trace with hash -1668636454, now seen corresponding path program 1 times [2021-10-11 02:23:33,630 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:23:33,631 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846335131] [2021-10-11 02:23:33,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:23:33,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:23:33,741 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:23:33,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:23:33,817 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:23:33,860 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-11 02:23:33,860 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 02:23:33,861 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-11 02:23:33,899 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:23:33 BoogieIcfgContainer [2021-10-11 02:23:33,899 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:23:33,900 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:23:33,901 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:23:33,901 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:23:33,902 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:23:33" (3/4) ... [2021-10-11 02:23:33,905 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-11 02:23:33,906 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:23:33,910 INFO L168 Benchmark]: Toolchain (without parser) took 2048.83 ms. Allocated memory is still 111.1 MB. Free memory was 73.6 MB in the beginning and 70.1 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.8 MB. Max. memory is 16.1 GB. [2021-10-11 02:23:33,911 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 111.1 MB. Free memory is still 90.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:23:33,912 INFO L168 Benchmark]: CACSL2BoogieTranslator took 354.29 ms. Allocated memory is still 111.1 MB. Free memory was 73.4 MB in the beginning and 85.5 MB in the end (delta: -12.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:23:33,914 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.76 ms. Allocated memory is still 111.1 MB. Free memory was 85.5 MB in the beginning and 83.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:23:33,915 INFO L168 Benchmark]: Boogie Preprocessor took 34.91 ms. Allocated memory is still 111.1 MB. Free memory was 83.7 MB in the beginning and 82.4 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:23:33,917 INFO L168 Benchmark]: RCFGBuilder took 836.23 ms. Allocated memory is still 111.1 MB. Free memory was 82.0 MB in the beginning and 49.5 MB in the end (delta: 32.5 MB). Peak memory consumption was 33.6 MB. Max. memory is 16.1 GB. [2021-10-11 02:23:33,919 INFO L168 Benchmark]: TraceAbstraction took 759.16 ms. Allocated memory is still 111.1 MB. Free memory was 49.2 MB in the beginning and 70.6 MB in the end (delta: -21.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:23:33,921 INFO L168 Benchmark]: Witness Printer took 6.42 ms. Allocated memory is still 111.1 MB. Free memory was 70.6 MB in the beginning and 70.1 MB in the end (delta: 504.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:23:33,932 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 111.1 MB. Free memory is still 90.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 354.29 ms. Allocated memory is still 111.1 MB. Free memory was 73.4 MB in the beginning and 85.5 MB in the end (delta: -12.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 47.76 ms. Allocated memory is still 111.1 MB. Free memory was 85.5 MB in the beginning and 83.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 34.91 ms. Allocated memory is still 111.1 MB. Free memory was 83.7 MB in the beginning and 82.4 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 836.23 ms. Allocated memory is still 111.1 MB. Free memory was 82.0 MB in the beginning and 49.5 MB in the end (delta: 32.5 MB). Peak memory consumption was 33.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 759.16 ms. Allocated memory is still 111.1 MB. Free memory was 49.2 MB in the beginning and 70.6 MB in the end (delta: -21.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 6.42 ms. Allocated memory is still 111.1 MB. Free memory was 70.6 MB in the beginning and 70.1 MB in the end (delta: 504.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 98]: 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 someBinaryArithmeticFLOAToperation at line 32, overapproximation of bitwiseAnd at line 29. Possible FailurePath: [L17] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; [L93] float x = 0.0f / 0.0f; [L20] float z; [L21] __uint32_t r, hx; [L22] __int32_t ix, s, q, m, t, i; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L25] ieee_float_shape_type gf_u; [L26] gf_u.value = (x) [L27] EXPR gf_u.word [L27] (ix) = gf_u.word [L29] hx = ix & 0x7fffffff VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L31] COND TRUE !((hx) < 0x7f800000L) [L32] return x * x + x; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L94] float res = __ieee754_sqrtf(x); [L15] return x != x; [L97] COND TRUE !isnan_float(res) [L98] reach_error() VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 20 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 25 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=20occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 36 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:23:36,812 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:23:36,815 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:23:36,873 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:23:36,873 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:23:36,875 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:23:36,877 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:23:36,880 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:23:36,883 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:23:36,884 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:23:36,886 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:23:36,887 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:23:36,888 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:23:36,889 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:23:36,891 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:23:36,892 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:23:36,894 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:23:36,895 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:23:36,897 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:23:36,900 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:23:36,902 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:23:36,904 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:23:36,906 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:23:36,907 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:23:36,910 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:23:36,911 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:23:36,911 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:23:36,913 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:23:36,913 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:23:36,915 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:23:36,915 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:23:36,916 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:23:36,918 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:23:36,919 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:23:36,920 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:23:36,921 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:23:36,922 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:23:36,922 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:23:36,922 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:23:36,924 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:23:36,924 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:23:36,925 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f114504b-8025-477c-bc6f-65b14fb631fd/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-11 02:23:36,956 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:23:36,956 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:23:36,957 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:23:36,957 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:23:36,958 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:23:36,958 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:23:36,958 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:23:36,958 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:23:36,959 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:23:36,959 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:23:36,960 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:23:36,960 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:23:36,960 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:23:36,960 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:23:36,961 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:23:36,961 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:23:36,961 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:23:36,961 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-11 02:23:36,962 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-11 02:23:36,962 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:23:36,962 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:23:36,962 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:23:36,963 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:23:36,963 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:23:36,963 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 02:23:36,963 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:23:36,964 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:23:36,964 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:23:36,964 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:23:36,964 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:23:36,965 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-11 02:23:36,965 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-11 02:23:36,965 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:23:36,965 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:23:36,966 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:23:36,966 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_f114504b-8025-477c-bc6f-65b14fb631fd/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f114504b-8025-477c-bc6f-65b14fb631fd/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3a46db52b19fb11eeacebca884b6de40c52cb082 [2021-10-11 02:23:37,409 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:23:37,442 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:23:37,447 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:23:37,448 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:23:37,449 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:23:37,450 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f114504b-8025-477c-bc6f-65b14fb631fd/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/float-newlib/float_req_bl_0720.c [2021-10-11 02:23:37,537 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f114504b-8025-477c-bc6f-65b14fb631fd/bin/utaipan-WLngWcDbfI/data/10f6e4c28/179445bd5ac046a787d9237c78352abe/FLAGcef8636cb [2021-10-11 02:23:38,113 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:23:38,114 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f114504b-8025-477c-bc6f-65b14fb631fd/sv-benchmarks/c/float-newlib/float_req_bl_0720.c [2021-10-11 02:23:38,123 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f114504b-8025-477c-bc6f-65b14fb631fd/bin/utaipan-WLngWcDbfI/data/10f6e4c28/179445bd5ac046a787d9237c78352abe/FLAGcef8636cb [2021-10-11 02:23:38,482 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f114504b-8025-477c-bc6f-65b14fb631fd/bin/utaipan-WLngWcDbfI/data/10f6e4c28/179445bd5ac046a787d9237c78352abe [2021-10-11 02:23:38,486 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:23:38,489 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:23:38,495 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:23:38,496 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:23:38,501 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:23:38,502 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:23:38" (1/1) ... [2021-10-11 02:23:38,506 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@681cca6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:23:38, skipping insertion in model container [2021-10-11 02:23:38,506 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:23:38" (1/1) ... [2021-10-11 02:23:38,515 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:23:38,565 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:23:38,842 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_f114504b-8025-477c-bc6f-65b14fb631fd/sv-benchmarks/c/float-newlib/float_req_bl_0720.c[1929,1942] [2021-10-11 02:23:38,845 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:23:38,860 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:23:38,980 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_f114504b-8025-477c-bc6f-65b14fb631fd/sv-benchmarks/c/float-newlib/float_req_bl_0720.c[1929,1942] [2021-10-11 02:23:38,981 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:23:39,003 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:23:39,003 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:23:39 WrapperNode [2021-10-11 02:23:39,004 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:23:39,005 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:23:39,005 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:23:39,006 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:23:39,015 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:23:39" (1/1) ... [2021-10-11 02:23:39,046 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:23:39" (1/1) ... [2021-10-11 02:23:39,090 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:23:39,092 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:23:39,092 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:23:39,092 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:23:39,103 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:23:39" (1/1) ... [2021-10-11 02:23:39,103 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:23:39" (1/1) ... [2021-10-11 02:23:39,122 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:23:39" (1/1) ... [2021-10-11 02:23:39,122 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:23:39" (1/1) ... [2021-10-11 02:23:39,141 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:23:39" (1/1) ... [2021-10-11 02:23:39,153 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:23:39" (1/1) ... [2021-10-11 02:23:39,158 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:23:39" (1/1) ... [2021-10-11 02:23:39,168 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:23:39,175 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:23:39,175 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:23:39,175 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:23:39,176 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:23:39" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f114504b-8025-477c-bc6f-65b14fb631fd/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 02:23:39,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-11 02:23:39,275 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:23:39,275 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-10-11 02:23:39,275 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-11 02:23:39,276 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:23:39,276 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:23:39,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-10-11 02:23:39,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-11 02:23:39,277 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-11 02:23:42,183 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:23:42,183 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2021-10-11 02:23:42,185 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:23:42 BoogieIcfgContainer [2021-10-11 02:23:42,185 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:23:42,188 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:23:42,188 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:23:42,191 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:23:42,192 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:23:38" (1/3) ... [2021-10-11 02:23:42,193 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77ac15c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:23:42, skipping insertion in model container [2021-10-11 02:23:42,193 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:23:39" (2/3) ... [2021-10-11 02:23:42,194 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77ac15c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:23:42, skipping insertion in model container [2021-10-11 02:23:42,194 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:23:42" (3/3) ... [2021-10-11 02:23:42,196 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0720.c [2021-10-11 02:23:42,213 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:23:42,217 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-10-11 02:23:42,230 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-11 02:23:42,256 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:23:42,257 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:23:42,257 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:23:42,257 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:23:42,257 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:23:42,258 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:23:42,258 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:23:42,258 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:23:42,273 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2021-10-11 02:23:42,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-11 02:23:42,279 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:23:42,279 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:23:42,280 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:23:42,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:23:42,287 INFO L82 PathProgramCache]: Analyzing trace with hash -1903734416, now seen corresponding path program 1 times [2021-10-11 02:23:42,308 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:23:42,309 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1150565186] [2021-10-11 02:23:42,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f114504b-8025-477c-bc6f-65b14fb631fd/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 02:23:42,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:23:42,589 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-11 02:23:42,593 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:23:42,619 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 02:23:42,620 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:23:42,621 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1150565186] [2021-10-11 02:23:42,621 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:23:42,621 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:23:42,622 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898244594] [2021-10-11 02:23:42,626 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 02:23:42,627 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:23:42,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 02:23:42,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 02:23:42,643 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 2 states. [2021-10-11 02:23:42,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:23:42,662 INFO L93 Difference]: Finished difference Result 64 states and 98 transitions. [2021-10-11 02:23:42,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 02:23:42,664 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2021-10-11 02:23:42,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:23:42,673 INFO L225 Difference]: With dead ends: 64 [2021-10-11 02:23:42,673 INFO L226 Difference]: Without dead ends: 30 [2021-10-11 02:23:42,676 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 02:23:42,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2021-10-11 02:23:42,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2021-10-11 02:23:42,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2021-10-11 02:23:42,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 40 transitions. [2021-10-11 02:23:42,715 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 40 transitions. Word has length 9 [2021-10-11 02:23:42,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:23:42,715 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 40 transitions. [2021-10-11 02:23:42,716 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 02:23:42,716 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 40 transitions. [2021-10-11 02:23:42,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-11 02:23:42,717 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:23:42,717 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:23:42,940 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2021-10-11 02:23:42,940 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:23:42,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:23:42,943 INFO L82 PathProgramCache]: Analyzing trace with hash 1484616397, now seen corresponding path program 1 times [2021-10-11 02:23:42,948 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:23:42,949 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1092151639] [2021-10-11 02:23:42,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f114504b-8025-477c-bc6f-65b14fb631fd/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 02:23:43,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:23:43,154 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-11 02:23:43,156 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:23:43,357 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 02:23:43,357 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:23:43,358 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1092151639] [2021-10-11 02:23:43,358 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:23:43,358 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-11 02:23:43,359 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131877863] [2021-10-11 02:23:43,360 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-10-11 02:23:43,360 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:23:43,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-11 02:23:43,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-10-11 02:23:43,362 INFO L87 Difference]: Start difference. First operand 30 states and 40 transitions. Second operand 7 states. [2021-10-11 02:23:45,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:23:45,155 INFO L93 Difference]: Finished difference Result 35 states and 44 transitions. [2021-10-11 02:23:45,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-11 02:23:45,156 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 10 [2021-10-11 02:23:45,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:23:45,158 INFO L225 Difference]: With dead ends: 35 [2021-10-11 02:23:45,158 INFO L226 Difference]: Without dead ends: 30 [2021-10-11 02:23:45,159 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-10-11 02:23:45,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2021-10-11 02:23:45,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2021-10-11 02:23:45,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2021-10-11 02:23:45,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 37 transitions. [2021-10-11 02:23:45,167 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 37 transitions. Word has length 10 [2021-10-11 02:23:45,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:23:45,167 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 37 transitions. [2021-10-11 02:23:45,168 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-10-11 02:23:45,168 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 37 transitions. [2021-10-11 02:23:45,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-11 02:23:45,169 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:23:45,169 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:23:45,382 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2021-10-11 02:23:45,386 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:23:45,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:23:45,387 INFO L82 PathProgramCache]: Analyzing trace with hash 591854048, now seen corresponding path program 1 times [2021-10-11 02:23:45,387 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-11 02:23:45,388 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1437524721] [2021-10-11 02:23:45,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f114504b-8025-477c-bc6f-65b14fb631fd/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 02:23:45,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:23:45,530 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-11 02:23:45,533 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:23:45,705 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 02:23:45,705 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 02:23:45,706 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1437524721] [2021-10-11 02:23:45,706 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:23:45,706 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 02:23:45,706 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661199572] [2021-10-11 02:23:45,707 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:23:45,707 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-11 02:23:45,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:23:45,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:23:45,709 INFO L87 Difference]: Start difference. First operand 30 states and 37 transitions. Second operand 5 states. [2021-10-11 02:23:45,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:23:45,871 INFO L93 Difference]: Finished difference Result 30 states and 37 transitions. [2021-10-11 02:23:45,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 02:23:45,871 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2021-10-11 02:23:45,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:23:45,871 INFO L225 Difference]: With dead ends: 30 [2021-10-11 02:23:45,872 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 02:23:45,872 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-11 02:23:45,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 02:23:45,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 02:23:45,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 02:23:45,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 02:23:45,873 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2021-10-11 02:23:45,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:23:45,873 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 02:23:45,874 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:23:45,874 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 02:23:45,874 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 02:23:46,083 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2021-10-11 02:23:46,085 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-11 02:23:46,237 INFO L265 CegarLoopResult]: At program point L102(lines 86 103) the Hoare annotation is: true [2021-10-11 02:23:46,237 INFO L262 CegarLoopResult]: For program point L36(lines 36 37) no Hoare annotation was computed. [2021-10-11 02:23:46,237 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-11 02:23:46,238 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-11 02:23:46,238 INFO L262 CegarLoopResult]: For program point L78-1(lines 78 82) no Hoare annotation was computed. [2021-10-11 02:23:46,238 INFO L258 CegarLoopResult]: At program point L78-2(lines 78 82) the Hoare annotation is: false [2021-10-11 02:23:46,238 INFO L262 CegarLoopResult]: For program point L78-3(lines 78 82) no Hoare annotation was computed. [2021-10-11 02:23:46,238 INFO L262 CegarLoopResult]: For program point L70(lines 70 73) no Hoare annotation was computed. [2021-10-11 02:23:46,238 INFO L258 CegarLoopResult]: At program point L55-2(lines 55 64) the Hoare annotation is: false [2021-10-11 02:23:46,239 INFO L262 CegarLoopResult]: For program point L55-3(lines 19 84) no Hoare annotation was computed. [2021-10-11 02:23:46,239 INFO L262 CegarLoopResult]: For program point L47(lines 47 48) no Hoare annotation was computed. [2021-10-11 02:23:46,239 INFO L262 CegarLoopResult]: For program point L47-2(lines 47 48) no Hoare annotation was computed. [2021-10-11 02:23:46,239 INFO L262 CegarLoopResult]: For program point L97(lines 97 100) no Hoare annotation was computed. [2021-10-11 02:23:46,239 INFO L262 CegarLoopResult]: For program point L31(lines 31 32) no Hoare annotation was computed. [2021-10-11 02:23:46,239 INFO L258 CegarLoopResult]: At program point L15(line 15) the Hoare annotation is: (and (= (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse0 .cse0) .cse0)) |ULTIMATE.start___ieee754_sqrtf_#res|) (= currentRoundingMode roundNearestTiesToEven) (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (= (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)) ULTIMATE.start___ieee754_sqrtf_~x)) [2021-10-11 02:23:46,240 INFO L262 CegarLoopResult]: For program point L40(lines 40 44) no Hoare annotation was computed. [2021-10-11 02:23:46,240 INFO L262 CegarLoopResult]: For program point L40-2(lines 40 44) no Hoare annotation was computed. [2021-10-11 02:23:46,240 INFO L262 CegarLoopResult]: For program point L98(line 98) no Hoare annotation was computed. [2021-10-11 02:23:46,240 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-11 02:23:46,240 INFO L262 CegarLoopResult]: For program point L57(lines 57 61) no Hoare annotation was computed. [2021-10-11 02:23:46,240 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 98) no Hoare annotation was computed. [2021-10-11 02:23:46,241 INFO L262 CegarLoopResult]: For program point L24-1(lines 24 28) no Hoare annotation was computed. [2021-10-11 02:23:46,241 INFO L262 CegarLoopResult]: For program point L57-2(lines 57 61) no Hoare annotation was computed. [2021-10-11 02:23:46,241 INFO L258 CegarLoopResult]: At program point L24-2(lines 24 28) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (= (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)) ULTIMATE.start___ieee754_sqrtf_~x)) [2021-10-11 02:23:46,241 INFO L262 CegarLoopResult]: For program point L24-3(lines 24 28) no Hoare annotation was computed. [2021-10-11 02:23:46,241 INFO L262 CegarLoopResult]: For program point L41-2(lines 41 42) no Hoare annotation was computed. [2021-10-11 02:23:46,241 INFO L258 CegarLoopResult]: At program point L41-3(lines 41 42) the Hoare annotation is: false [2021-10-11 02:23:46,241 INFO L262 CegarLoopResult]: For program point L41-4(lines 41 42) no Hoare annotation was computed. [2021-10-11 02:23:46,242 INFO L262 CegarLoopResult]: For program point L66(lines 66 75) no Hoare annotation was computed. [2021-10-11 02:23:46,242 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-11 02:23:46,242 INFO L258 CegarLoopResult]: At program point L83(lines 19 84) the Hoare annotation is: (and (= (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse0 .cse0) .cse0)) |ULTIMATE.start___ieee754_sqrtf_#res|) (= currentRoundingMode roundNearestTiesToEven) (= (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)) ULTIMATE.start___ieee754_sqrtf_~x)) [2021-10-11 02:23:46,242 INFO L262 CegarLoopResult]: For program point L34(lines 34 35) no Hoare annotation was computed. [2021-10-11 02:23:46,242 INFO L262 CegarLoopResult]: For program point L68(lines 68 74) no Hoare annotation was computed. [2021-10-11 02:23:46,252 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:23:46,253 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:23:46,253 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:23:46,253 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:23:46,253 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:23:46,254 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:23:46,258 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:23:46,258 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:23:46,259 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:23:46,259 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:23:46,259 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:23:46,259 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:23:46,261 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:23:46,261 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:23:46,262 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:23:46,262 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:23:46,262 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:23:46,262 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:23:46,262 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:23:46,263 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:23:46,263 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:23:46,263 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:23:46,264 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:23:46,264 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:23:46,264 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:23:46,264 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:23:46,266 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:23:46 BoogieIcfgContainer [2021-10-11 02:23:46,266 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:23:46,267 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:23:46,267 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:23:46,267 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:23:46,268 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:23:42" (3/4) ... [2021-10-11 02:23:46,271 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-11 02:23:46,283 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2021-10-11 02:23:46,283 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-10-11 02:23:46,283 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:23:46,284 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:23:46,310 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.mul~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) == \result && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x [2021-10-11 02:23:46,310 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.mul~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) == \result && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && 1bv32 == \result) && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x [2021-10-11 02:23:46,335 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f114504b-8025-477c-bc6f-65b14fb631fd/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:23:46,335 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:23:46,337 INFO L168 Benchmark]: Toolchain (without parser) took 7847.22 ms. Allocated memory was 83.9 MB in the beginning and 113.2 MB in the end (delta: 29.4 MB). Free memory was 47.6 MB in the beginning and 49.7 MB in the end (delta: -2.1 MB). Peak memory consumption was 29.2 MB. Max. memory is 16.1 GB. [2021-10-11 02:23:46,337 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 83.9 MB. Free memory was 64.2 MB in the beginning and 64.1 MB in the end (delta: 67.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:23:46,338 INFO L168 Benchmark]: CACSL2BoogieTranslator took 508.80 ms. Allocated memory is still 83.9 MB. Free memory was 47.4 MB in the beginning and 65.5 MB in the end (delta: -18.1 MB). Peak memory consumption was 6.0 MB. Max. memory is 16.1 GB. [2021-10-11 02:23:46,338 INFO L168 Benchmark]: Boogie Procedure Inliner took 84.93 ms. Allocated memory is still 83.9 MB. Free memory was 65.3 MB in the beginning and 63.6 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:23:46,339 INFO L168 Benchmark]: Boogie Preprocessor took 82.44 ms. Allocated memory is still 83.9 MB. Free memory was 63.6 MB in the beginning and 61.8 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:23:46,339 INFO L168 Benchmark]: RCFGBuilder took 3010.61 ms. Allocated memory is still 83.9 MB. Free memory was 61.8 MB in the beginning and 41.9 MB in the end (delta: 19.9 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2021-10-11 02:23:46,340 INFO L168 Benchmark]: TraceAbstraction took 4078.93 ms. Allocated memory was 83.9 MB in the beginning and 113.2 MB in the end (delta: 29.4 MB). Free memory was 41.5 MB in the beginning and 53.3 MB in the end (delta: -11.8 MB). Peak memory consumption was 19.0 MB. Max. memory is 16.1 GB. [2021-10-11 02:23:46,340 INFO L168 Benchmark]: Witness Printer took 68.21 ms. Allocated memory is still 113.2 MB. Free memory was 53.3 MB in the beginning and 49.7 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-11 02:23:46,343 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 83.9 MB. Free memory was 64.2 MB in the beginning and 64.1 MB in the end (delta: 67.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 508.80 ms. Allocated memory is still 83.9 MB. Free memory was 47.4 MB in the beginning and 65.5 MB in the end (delta: -18.1 MB). Peak memory consumption was 6.0 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 84.93 ms. Allocated memory is still 83.9 MB. Free memory was 65.3 MB in the beginning and 63.6 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 82.44 ms. Allocated memory is still 83.9 MB. Free memory was 63.6 MB in the beginning and 61.8 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 3010.61 ms. Allocated memory is still 83.9 MB. Free memory was 61.8 MB in the beginning and 41.9 MB in the end (delta: 19.9 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4078.93 ms. Allocated memory was 83.9 MB in the beginning and 113.2 MB in the end (delta: 29.4 MB). Free memory was 41.5 MB in the beginning and 53.3 MB in the end (delta: -11.8 MB). Peak memory consumption was 19.0 MB. Max. memory is 16.1 GB. * Witness Printer took 68.21 ms. Allocated memory is still 113.2 MB. Free memory was 53.3 MB in the beginning and 49.7 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 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 Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 98]: 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 02:23:46,351 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:23:46,351 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:23:46,351 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:23:46,351 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:23:46,351 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:23:46,351 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:23:46,352 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:23:46,352 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:23:46,352 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:23:46,353 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:23:46,353 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:23:46,353 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.mul~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) == \result && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && 1bv32 == \result) && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x - InvariantResult [Line: 55]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 86]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 24]: Loop Invariant [2021-10-11 02:23:46,354 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:23:46,354 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x - InvariantResult [Line: 41]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 78]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 19]: Loop Invariant [2021-10-11 02:23:46,355 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:23:46,355 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:23:46,355 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:23:46,355 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:23:46,355 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:23:46,355 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:23:46,356 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:23:46,356 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:23:46,356 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:23:46,356 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:23:46,357 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-11 02:23:46,357 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.mul~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) == \result && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 33 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.8s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 77 SDtfs, 85 SDslu, 96 SDs, 0 SdLazy, 40 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 43 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 11 NumberOfFragments, 73 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 7 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 41 NumberOfCodeBlocks, 41 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 38 ConstructedInterpolants, 4 QuantifiedInterpolants, 2125 SizeOfPredicates, 16 NumberOfNonLiveVariables, 154 ConjunctsInSsa, 20 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...