./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0710.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-vcloud-master/worker/run_dir_b93d1781-884c-4a36-97c4-68af0ec0ea58/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_b93d1781-884c-4a36-97c4-68af0ec0ea58/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b93d1781-884c-4a36-97c4-68af0ec0ea58/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b93d1781-884c-4a36-97c4-68af0ec0ea58/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0710.c -s /tmp/vcloud-vcloud-master/worker/run_dir_b93d1781-884c-4a36-97c4-68af0ec0ea58/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b93d1781-884c-4a36-97c4-68af0ec0ea58/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bef6e9194447b24677d0088ba0b7766a25273d0b ......................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_b93d1781-884c-4a36-97c4-68af0ec0ea58/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_b93d1781-884c-4a36-97c4-68af0ec0ea58/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b93d1781-884c-4a36-97c4-68af0ec0ea58/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b93d1781-884c-4a36-97c4-68af0ec0ea58/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0710.c -s /tmp/vcloud-vcloud-master/worker/run_dir_b93d1781-884c-4a36-97c4-68af0ec0ea58/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b93d1781-884c-4a36-97c4-68af0ec0ea58/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bef6e9194447b24677d0088ba0b7766a25273d0b ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2020-12-09 19:50:00,423 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 19:50:00,424 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 19:50:00,458 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 19:50:00,459 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 19:50:00,460 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 19:50:00,462 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 19:50:00,467 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 19:50:00,469 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 19:50:00,470 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 19:50:00,472 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 19:50:00,473 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 19:50:00,473 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 19:50:00,475 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 19:50:00,476 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 19:50:00,477 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 19:50:00,478 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 19:50:00,479 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 19:50:00,481 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 19:50:00,483 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 19:50:00,485 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 19:50:00,487 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 19:50:00,488 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 19:50:00,489 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 19:50:00,492 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 19:50:00,492 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 19:50:00,493 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 19:50:00,494 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 19:50:00,494 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 19:50:00,495 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 19:50:00,495 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 19:50:00,496 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 19:50:00,497 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 19:50:00,497 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 19:50:00,498 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 19:50:00,498 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 19:50:00,499 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 19:50:00,499 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 19:50:00,499 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 19:50:00,500 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 19:50:00,500 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 19:50:00,501 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b93d1781-884c-4a36-97c4-68af0ec0ea58/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-12-09 19:50:00,524 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 19:50:00,524 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 19:50:00,525 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 19:50:00,525 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 19:50:00,525 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 19:50:00,525 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 19:50:00,525 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 19:50:00,525 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 19:50:00,525 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 19:50:00,525 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 19:50:00,526 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 19:50:00,526 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 19:50:00,526 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 19:50:00,526 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 19:50:00,526 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 19:50:00,527 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 19:50:00,527 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 19:50:00,527 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 19:50:00,527 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 19:50:00,527 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 19:50:00,527 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 19:50:00,528 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 19:50:00,528 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 19:50:00,528 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 19:50:00,528 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 19:50:00,528 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 19:50:00,528 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 19:50:00,528 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 19:50:00,528 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 19:50:00,528 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 19:50:00,529 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 19:50:00,529 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 19:50:00,529 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 19:50:00,529 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 19:50:00,529 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 19:50:00,530 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 19:50:00,530 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 19:50:00,530 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 19:50:00,530 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 19:50:00,530 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_b93d1781-884c-4a36-97c4-68af0ec0ea58/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_b93d1781-884c-4a36-97c4-68af0ec0ea58/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bef6e9194447b24677d0088ba0b7766a25273d0b [2020-12-09 19:50:00,713 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 19:50:00,730 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 19:50:00,732 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 19:50:00,733 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 19:50:00,733 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 19:50:00,734 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b93d1781-884c-4a36-97c4-68af0ec0ea58/bin/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0710.c [2020-12-09 19:50:00,774 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b93d1781-884c-4a36-97c4-68af0ec0ea58/bin/utaipan/data/442ea2440/ee706a2939fb4fb39bc84fa9e4c24128/FLAG851b9516f [2020-12-09 19:50:01,133 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 19:50:01,133 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b93d1781-884c-4a36-97c4-68af0ec0ea58/sv-benchmarks/c/float-newlib/float_req_bl_0710.c [2020-12-09 19:50:01,138 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b93d1781-884c-4a36-97c4-68af0ec0ea58/bin/utaipan/data/442ea2440/ee706a2939fb4fb39bc84fa9e4c24128/FLAG851b9516f [2020-12-09 19:50:01,150 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b93d1781-884c-4a36-97c4-68af0ec0ea58/bin/utaipan/data/442ea2440/ee706a2939fb4fb39bc84fa9e4c24128 [2020-12-09 19:50:01,152 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 19:50:01,153 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 19:50:01,155 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 19:50:01,155 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 19:50:01,157 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 19:50:01,157 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:50:01" (1/1) ... [2020-12-09 19:50:01,159 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18773eca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:50:01, skipping insertion in model container [2020-12-09 19:50:01,159 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:50:01" (1/1) ... [2020-12-09 19:50:01,164 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 19:50:01,179 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 19:50:01,310 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_b93d1781-884c-4a36-97c4-68af0ec0ea58/sv-benchmarks/c/float-newlib/float_req_bl_0710.c[1961,1974] [2020-12-09 19:50:01,313 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 19:50:01,319 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 19:50:01,339 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_b93d1781-884c-4a36-97c4-68af0ec0ea58/sv-benchmarks/c/float-newlib/float_req_bl_0710.c[1961,1974] [2020-12-09 19:50:01,340 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 19:50:01,351 INFO L208 MainTranslator]: Completed translation [2020-12-09 19:50:01,351 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:50:01 WrapperNode [2020-12-09 19:50:01,351 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 19:50:01,352 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 19:50:01,352 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 19:50:01,352 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 19:50:01,358 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:50:01" (1/1) ... [2020-12-09 19:50:01,364 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:50:01" (1/1) ... [2020-12-09 19:50:01,381 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 19:50:01,382 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 19:50:01,382 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 19:50:01,382 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 19:50:01,389 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:50:01" (1/1) ... [2020-12-09 19:50:01,390 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:50:01" (1/1) ... [2020-12-09 19:50:01,392 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:50:01" (1/1) ... [2020-12-09 19:50:01,392 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:50:01" (1/1) ... [2020-12-09 19:50:01,398 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:50:01" (1/1) ... [2020-12-09 19:50:01,402 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:50:01" (1/1) ... [2020-12-09 19:50:01,405 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:50:01" (1/1) ... [2020-12-09 19:50:01,407 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 19:50:01,408 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 19:50:01,409 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 19:50:01,409 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 19:50:01,410 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:50:01" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b93d1781-884c-4a36-97c4-68af0ec0ea58/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 19:50:01,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-09 19:50:01,472 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 19:50:01,472 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-12-09 19:50:01,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-09 19:50:01,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-12-09 19:50:01,472 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 19:50:01,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 19:50:01,473 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-09 19:50:01,473 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-09 19:50:01,832 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 19:50:01,832 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2020-12-09 19:50:01,834 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:50:01 BoogieIcfgContainer [2020-12-09 19:50:01,834 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 19:50:01,836 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 19:50:01,836 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 19:50:01,839 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 19:50:01,839 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 07:50:01" (1/3) ... [2020-12-09 19:50:01,840 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c18f6ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:50:01, skipping insertion in model container [2020-12-09 19:50:01,840 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:50:01" (2/3) ... [2020-12-09 19:50:01,840 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c18f6ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:50:01, skipping insertion in model container [2020-12-09 19:50:01,840 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:50:01" (3/3) ... [2020-12-09 19:50:01,841 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0710.c [2020-12-09 19:50:01,851 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 19:50:01,854 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-09 19:50:01,863 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-09 19:50:01,881 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 19:50:01,881 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 19:50:01,881 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 19:50:01,881 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 19:50:01,881 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 19:50:01,882 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 19:50:01,882 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 19:50:01,882 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 19:50:01,890 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2020-12-09 19:50:01,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-09 19:50:01,894 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 19:50:01,894 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 19:50:01,894 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 19:50:01,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 19:50:01,898 INFO L82 PathProgramCache]: Analyzing trace with hash 1228239283, now seen corresponding path program 1 times [2020-12-09 19:50:01,905 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 19:50:01,905 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111894452] [2020-12-09 19:50:01,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 19:50:01,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 19:50:02,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 19:50:02,007 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111894452] [2020-12-09 19:50:02,007 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 19:50:02,007 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 19:50:02,008 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803405626] [2020-12-09 19:50:02,011 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-09 19:50:02,012 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 19:50:02,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-09 19:50:02,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 19:50:02,025 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 2 states. [2020-12-09 19:50:02,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 19:50:02,037 INFO L93 Difference]: Finished difference Result 42 states and 63 transitions. [2020-12-09 19:50:02,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-09 19:50:02,038 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-12-09 19:50:02,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 19:50:02,044 INFO L225 Difference]: With dead ends: 42 [2020-12-09 19:50:02,044 INFO L226 Difference]: Without dead ends: 19 [2020-12-09 19:50:02,046 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 19:50:02,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-12-09 19:50:02,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2020-12-09 19:50:02,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-12-09 19:50:02,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 24 transitions. [2020-12-09 19:50:02,068 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 24 transitions. Word has length 8 [2020-12-09 19:50:02,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 19:50:02,068 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 24 transitions. [2020-12-09 19:50:02,068 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-09 19:50:02,068 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 24 transitions. [2020-12-09 19:50:02,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-09 19:50:02,068 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 19:50:02,068 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 19:50:02,069 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-09 19:50:02,069 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 19:50:02,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 19:50:02,069 INFO L82 PathProgramCache]: Analyzing trace with hash 1648939227, now seen corresponding path program 1 times [2020-12-09 19:50:02,069 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 19:50:02,070 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579629613] [2020-12-09 19:50:02,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 19:50:02,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 19:50:02,100 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 19:50:02,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 19:50:02,121 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 19:50:02,137 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-12-09 19:50:02,137 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-09 19:50:02,137 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-09 19:50:02,156 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 07:50:02 BoogieIcfgContainer [2020-12-09 19:50:02,157 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 19:50:02,157 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 19:50:02,157 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 19:50:02,157 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 19:50:02,157 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:50:01" (3/4) ... [2020-12-09 19:50:02,160 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-09 19:50:02,160 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 19:50:02,161 INFO L168 Benchmark]: Toolchain (without parser) took 1007.00 ms. Allocated memory was 83.9 MB in the beginning and 127.9 MB in the end (delta: 44.0 MB). Free memory was 54.0 MB in the beginning and 44.5 MB in the end (delta: 9.5 MB). Peak memory consumption was 51.7 MB. Max. memory is 16.1 GB. [2020-12-09 19:50:02,162 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 83.9 MB. Free memory was 43.2 MB in the beginning and 43.1 MB in the end (delta: 53.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 19:50:02,163 INFO L168 Benchmark]: CACSL2BoogieTranslator took 196.67 ms. Allocated memory was 83.9 MB in the beginning and 127.9 MB in the end (delta: 44.0 MB). Free memory was 53.7 MB in the beginning and 104.0 MB in the end (delta: -50.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-09 19:50:02,163 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.46 ms. Allocated memory is still 127.9 MB. Free memory was 104.0 MB in the beginning and 101.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 19:50:02,164 INFO L168 Benchmark]: Boogie Preprocessor took 25.80 ms. Allocated memory is still 127.9 MB. Free memory was 101.9 MB in the beginning and 101.1 MB in the end (delta: 817.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 19:50:02,165 INFO L168 Benchmark]: RCFGBuilder took 426.01 ms. Allocated memory is still 127.9 MB. Free memory was 100.6 MB in the beginning and 67.5 MB in the end (delta: 33.1 MB). Peak memory consumption was 33.6 MB. Max. memory is 16.1 GB. [2020-12-09 19:50:02,165 INFO L168 Benchmark]: TraceAbstraction took 320.40 ms. Allocated memory is still 127.9 MB. Free memory was 67.1 MB in the beginning and 44.5 MB in the end (delta: 22.6 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2020-12-09 19:50:02,166 INFO L168 Benchmark]: Witness Printer took 2.66 ms. Allocated memory is still 127.9 MB. Free memory is still 44.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 19:50:02,169 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 83.9 MB. Free memory was 43.2 MB in the beginning and 43.1 MB in the end (delta: 53.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 196.67 ms. Allocated memory was 83.9 MB in the beginning and 127.9 MB in the end (delta: 44.0 MB). Free memory was 53.7 MB in the beginning and 104.0 MB in the end (delta: -50.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 29.46 ms. Allocated memory is still 127.9 MB. Free memory was 104.0 MB in the beginning and 101.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 25.80 ms. Allocated memory is still 127.9 MB. Free memory was 101.9 MB in the beginning and 101.1 MB in the end (delta: 817.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 426.01 ms. Allocated memory is still 127.9 MB. Free memory was 100.6 MB in the beginning and 67.5 MB in the end (delta: 33.1 MB). Peak memory consumption was 33.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 320.40 ms. Allocated memory is still 127.9 MB. Free memory was 67.1 MB in the beginning and 44.5 MB in the end (delta: 22.6 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * Witness Printer took 2.66 ms. Allocated memory is still 127.9 MB. Free memory is still 44.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 100]: 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 bitwiseAnd at line 29, overapproximation of someBinaryArithmeticFLOAToperation at line 32. Possible FailurePath: [L17] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; [L93] float x = __VERIFIER_nondet_float(); [L94] COND TRUE x < -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] [L96] float res = __ieee754_sqrtf(x); [L15] return x != x; [L99] COND TRUE !isnan_float(res) [L100] reach_error() VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 22 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.2s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 28 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=22occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 49 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 [2020-12-09 19:50:03,860 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 19:50:03,861 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 19:50:03,889 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 19:50:03,890 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 19:50:03,891 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 19:50:03,893 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 19:50:03,895 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 19:50:03,898 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 19:50:03,899 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 19:50:03,900 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 19:50:03,901 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 19:50:03,902 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 19:50:03,903 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 19:50:03,904 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 19:50:03,906 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 19:50:03,906 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 19:50:03,907 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 19:50:03,910 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 19:50:03,912 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 19:50:03,914 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 19:50:03,915 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 19:50:03,917 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 19:50:03,918 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 19:50:03,921 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 19:50:03,921 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 19:50:03,922 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 19:50:03,923 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 19:50:03,923 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 19:50:03,924 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 19:50:03,924 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 19:50:03,925 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 19:50:03,925 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 19:50:03,926 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 19:50:03,927 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 19:50:03,927 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 19:50:03,927 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 19:50:03,928 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 19:50:03,928 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 19:50:03,928 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 19:50:03,929 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 19:50:03,930 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b93d1781-884c-4a36-97c4-68af0ec0ea58/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-12-09 19:50:03,958 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 19:50:03,958 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 19:50:03,959 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 19:50:03,959 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 19:50:03,960 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 19:50:03,960 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 19:50:03,960 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 19:50:03,960 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 19:50:03,960 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 19:50:03,961 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 19:50:03,961 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 19:50:03,961 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 19:50:03,962 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 19:50:03,962 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 19:50:03,962 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 19:50:03,962 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 19:50:03,962 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 19:50:03,963 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-09 19:50:03,963 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-09 19:50:03,963 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 19:50:03,963 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 19:50:03,963 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 19:50:03,964 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 19:50:03,964 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 19:50:03,964 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-09 19:50:03,964 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 19:50:03,964 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 19:50:03,965 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 19:50:03,965 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 19:50:03,965 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 19:50:03,965 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-12-09 19:50:03,965 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2020-12-09 19:50:03,966 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 19:50:03,966 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 19:50:03,966 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 19:50:03,966 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-vcloud-master/worker/run_dir_b93d1781-884c-4a36-97c4-68af0ec0ea58/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_b93d1781-884c-4a36-97c4-68af0ec0ea58/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bef6e9194447b24677d0088ba0b7766a25273d0b [2020-12-09 19:50:04,191 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 19:50:04,206 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 19:50:04,208 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 19:50:04,208 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 19:50:04,209 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 19:50:04,210 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b93d1781-884c-4a36-97c4-68af0ec0ea58/bin/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0710.c [2020-12-09 19:50:04,251 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b93d1781-884c-4a36-97c4-68af0ec0ea58/bin/utaipan/data/93ffd7ac8/a6a2cd521e5f4d51bb958a56f67bdbc2/FLAG09884bd56 [2020-12-09 19:50:04,647 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 19:50:04,647 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b93d1781-884c-4a36-97c4-68af0ec0ea58/sv-benchmarks/c/float-newlib/float_req_bl_0710.c [2020-12-09 19:50:04,654 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b93d1781-884c-4a36-97c4-68af0ec0ea58/bin/utaipan/data/93ffd7ac8/a6a2cd521e5f4d51bb958a56f67bdbc2/FLAG09884bd56 [2020-12-09 19:50:04,668 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b93d1781-884c-4a36-97c4-68af0ec0ea58/bin/utaipan/data/93ffd7ac8/a6a2cd521e5f4d51bb958a56f67bdbc2 [2020-12-09 19:50:04,670 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 19:50:04,671 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 19:50:04,673 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 19:50:04,673 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 19:50:04,676 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 19:50:04,677 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:50:04" (1/1) ... [2020-12-09 19:50:04,679 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@482cfa87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:50:04, skipping insertion in model container [2020-12-09 19:50:04,679 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:50:04" (1/1) ... [2020-12-09 19:50:04,686 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 19:50:04,702 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 19:50:04,817 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_b93d1781-884c-4a36-97c4-68af0ec0ea58/sv-benchmarks/c/float-newlib/float_req_bl_0710.c[1961,1974] [2020-12-09 19:50:04,819 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 19:50:04,828 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 19:50:04,847 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_b93d1781-884c-4a36-97c4-68af0ec0ea58/sv-benchmarks/c/float-newlib/float_req_bl_0710.c[1961,1974] [2020-12-09 19:50:04,848 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 19:50:04,860 INFO L208 MainTranslator]: Completed translation [2020-12-09 19:50:04,860 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:50:04 WrapperNode [2020-12-09 19:50:04,860 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 19:50:04,861 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 19:50:04,861 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 19:50:04,861 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 19:50:04,874 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:50:04" (1/1) ... [2020-12-09 19:50:04,888 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:50:04" (1/1) ... [2020-12-09 19:50:04,909 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 19:50:04,910 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 19:50:04,910 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 19:50:04,910 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 19:50:04,919 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:50:04" (1/1) ... [2020-12-09 19:50:04,919 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:50:04" (1/1) ... [2020-12-09 19:50:04,924 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:50:04" (1/1) ... [2020-12-09 19:50:04,924 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:50:04" (1/1) ... [2020-12-09 19:50:04,934 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:50:04" (1/1) ... [2020-12-09 19:50:04,939 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:50:04" (1/1) ... [2020-12-09 19:50:04,942 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:50:04" (1/1) ... [2020-12-09 19:50:04,947 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 19:50:04,948 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 19:50:04,948 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 19:50:04,948 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 19:50:04,949 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:50:04" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b93d1781-884c-4a36-97c4-68af0ec0ea58/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 19:50:05,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-09 19:50:05,024 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 19:50:05,024 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-12-09 19:50:05,024 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-12-09 19:50:05,025 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 19:50:05,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 19:50:05,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-12-09 19:50:05,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-12-09 19:50:05,025 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-09 19:50:06,180 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 19:50:06,181 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2020-12-09 19:50:06,182 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:50:06 BoogieIcfgContainer [2020-12-09 19:50:06,182 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 19:50:06,183 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 19:50:06,184 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 19:50:06,186 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 19:50:06,186 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 07:50:04" (1/3) ... [2020-12-09 19:50:06,186 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30cca1e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:50:06, skipping insertion in model container [2020-12-09 19:50:06,186 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:50:04" (2/3) ... [2020-12-09 19:50:06,187 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30cca1e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:50:06, skipping insertion in model container [2020-12-09 19:50:06,187 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:50:06" (3/3) ... [2020-12-09 19:50:06,188 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0710.c [2020-12-09 19:50:06,197 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 19:50:06,203 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-09 19:50:06,210 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-09 19:50:06,226 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 19:50:06,226 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 19:50:06,226 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 19:50:06,226 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 19:50:06,227 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 19:50:06,227 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 19:50:06,227 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 19:50:06,227 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 19:50:06,236 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states. [2020-12-09 19:50:06,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-09 19:50:06,239 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 19:50:06,240 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 19:50:06,240 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 19:50:06,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 19:50:06,244 INFO L82 PathProgramCache]: Analyzing trace with hash 860611220, now seen corresponding path program 1 times [2020-12-09 19:50:06,252 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 19:50:06,252 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1810890650] [2020-12-09 19:50:06,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b93d1781-884c-4a36-97c4-68af0ec0ea58/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-12-09 19:50:06,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 19:50:06,394 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 1 conjunts are in the unsatisfiable core [2020-12-09 19:50:06,397 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 19:50:06,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 19:50:06,415 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 19:50:06,416 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1810890650] [2020-12-09 19:50:06,416 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 19:50:06,416 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 19:50:06,417 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591200070] [2020-12-09 19:50:06,420 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-09 19:50:06,420 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 19:50:06,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-09 19:50:06,429 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 19:50:06,430 INFO L87 Difference]: Start difference. First operand 35 states. Second operand 2 states. [2020-12-09 19:50:06,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 19:50:06,443 INFO L93 Difference]: Finished difference Result 67 states and 102 transitions. [2020-12-09 19:50:06,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-09 19:50:06,444 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-12-09 19:50:06,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 19:50:06,450 INFO L225 Difference]: With dead ends: 67 [2020-12-09 19:50:06,450 INFO L226 Difference]: Without dead ends: 31 [2020-12-09 19:50:06,452 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-09 19:50:06,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-12-09 19:50:06,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-12-09 19:50:06,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-12-09 19:50:06,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 41 transitions. [2020-12-09 19:50:06,475 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 41 transitions. Word has length 10 [2020-12-09 19:50:06,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 19:50:06,476 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 41 transitions. [2020-12-09 19:50:06,476 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-09 19:50:06,476 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 41 transitions. [2020-12-09 19:50:06,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-09 19:50:06,476 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 19:50:06,476 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 19:50:06,677 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-09 19:50:06,677 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 19:50:06,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 19:50:06,678 INFO L82 PathProgramCache]: Analyzing trace with hash 1279985196, now seen corresponding path program 1 times [2020-12-09 19:50:06,679 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 19:50:06,679 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [82061018] [2020-12-09 19:50:06,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b93d1781-884c-4a36-97c4-68af0ec0ea58/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-12-09 19:50:06,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 19:50:06,812 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 16 conjunts are in the unsatisfiable core [2020-12-09 19:50:06,814 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 19:50:14,505 WARN L197 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2020-12-09 19:50:14,512 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 19:50:15,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 19:50:15,893 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 19:50:15,893 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [82061018] [2020-12-09 19:50:15,893 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 19:50:15,894 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-12-09 19:50:15,894 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508454376] [2020-12-09 19:50:15,895 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-12-09 19:50:15,895 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 19:50:15,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-12-09 19:50:15,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=50, Unknown=2, NotChecked=0, Total=72 [2020-12-09 19:50:15,897 INFO L87 Difference]: Start difference. First operand 31 states and 41 transitions. Second operand 9 states. [2020-12-09 19:50:30,126 WARN L197 SmtUtils]: Spent 413.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2020-12-09 19:50:42,263 WARN L197 SmtUtils]: Spent 6.79 s on a formula simplification that was a NOOP. DAG size: 30 [2020-12-09 19:50:54,829 WARN L197 SmtUtils]: Spent 6.83 s on a formula simplification that was a NOOP. DAG size: 33 [2020-12-09 19:51:08,102 WARN L197 SmtUtils]: Spent 7.44 s on a formula simplification that was a NOOP. DAG size: 35 [2020-12-09 19:51:29,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 19:51:29,945 INFO L93 Difference]: Finished difference Result 39 states and 48 transitions. [2020-12-09 19:51:31,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-09 19:51:31,062 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 11 [2020-12-09 19:51:31,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 19:51:31,062 INFO L225 Difference]: With dead ends: 39 [2020-12-09 19:51:31,063 INFO L226 Difference]: Without dead ends: 14 [2020-12-09 19:51:31,064 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 40.6s TimeCoverageRelationStatistics Valid=56, Invalid=96, Unknown=4, NotChecked=0, Total=156 [2020-12-09 19:51:31,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2020-12-09 19:51:31,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2020-12-09 19:51:31,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-12-09 19:51:31,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 13 transitions. [2020-12-09 19:51:31,067 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 13 transitions. Word has length 11 [2020-12-09 19:51:31,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 19:51:31,067 INFO L481 AbstractCegarLoop]: Abstraction has 14 states and 13 transitions. [2020-12-09 19:51:31,067 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-12-09 19:51:31,067 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 13 transitions. [2020-12-09 19:51:31,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-09 19:51:31,068 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 19:51:31,068 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 19:51:31,268 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-09 19:51:31,269 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 19:51:31,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 19:51:31,271 INFO L82 PathProgramCache]: Analyzing trace with hash 939378801, now seen corresponding path program 1 times [2020-12-09 19:51:31,273 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 19:51:31,273 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1981348961] [2020-12-09 19:51:31,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b93d1781-884c-4a36-97c4-68af0ec0ea58/bin/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-12-09 19:51:31,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 19:51:31,500 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-09 19:51:31,501 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 19:51:31,716 WARN L197 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 3 [2020-12-09 19:51:36,131 WARN L197 SmtUtils]: Spent 1.19 s on a formula simplification that was a NOOP. DAG size: 7 [2020-12-09 19:51:40,803 WARN L197 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 3 [2020-12-09 19:51:40,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 19:51:40,808 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 19:51:40,808 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1981348961] [2020-12-09 19:51:40,808 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 19:51:40,808 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-09 19:51:40,809 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816851376] [2020-12-09 19:51:40,809 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-09 19:51:40,809 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 19:51:40,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-09 19:51:40,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-09 19:51:40,810 INFO L87 Difference]: Start difference. First operand 14 states and 13 transitions. Second operand 6 states. [2020-12-09 19:51:49,806 WARN L197 SmtUtils]: Spent 2.13 s on a formula simplification that was a NOOP. DAG size: 10 [2020-12-09 19:52:00,482 WARN L197 SmtUtils]: Spent 5.82 s on a formula simplification that was a NOOP. DAG size: 13 [2020-12-09 19:52:07,624 WARN L197 SmtUtils]: Spent 6.33 s on a formula simplification that was a NOOP. DAG size: 15 [2020-12-09 19:52:07,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 19:52:07,626 INFO L93 Difference]: Finished difference Result 14 states and 13 transitions. [2020-12-09 19:52:07,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-09 19:52:07,626 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2020-12-09 19:52:07,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 19:52:07,626 INFO L225 Difference]: With dead ends: 14 [2020-12-09 19:52:07,626 INFO L226 Difference]: Without dead ends: 0 [2020-12-09 19:52:07,627 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 30.9s TimeCoverageRelationStatistics Valid=27, Invalid=44, Unknown=1, NotChecked=0, Total=72 [2020-12-09 19:52:07,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-09 19:52:07,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-09 19:52:07,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-09 19:52:07,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-09 19:52:07,627 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2020-12-09 19:52:07,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 19:52:07,627 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-09 19:52:07,627 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-09 19:52:07,627 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-09 19:52:07,628 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-09 19:52:07,828 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-12-09 19:52:07,833 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-09 19:52:27,223 WARN L197 SmtUtils]: Spent 19.35 s on a formula simplification. DAG size of input: 39 DAG size of output: 28 [2020-12-09 19:52:27,564 WARN L197 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2020-12-09 19:52:41,698 WARN L197 SmtUtils]: Spent 14.04 s on a formula simplification. DAG size of input: 36 DAG size of output: 25 [2020-12-09 19:52:41,701 INFO L262 CegarLoopResult]: For program point L36(lines 36 37) no Hoare annotation was computed. [2020-12-09 19:52:41,701 INFO L262 CegarLoopResult]: For program point L94(lines 94 103) no Hoare annotation was computed. [2020-12-09 19:52:41,701 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-09 19:52:41,701 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-09 19:52:41,701 INFO L262 CegarLoopResult]: For program point L94-2(lines 94 103) no Hoare annotation was computed. [2020-12-09 19:52:41,701 INFO L262 CegarLoopResult]: For program point L78-1(lines 78 82) no Hoare annotation was computed. [2020-12-09 19:52:41,701 INFO L258 CegarLoopResult]: At program point L78-2(lines 78 82) the Hoare annotation is: false [2020-12-09 19:52:41,701 INFO L262 CegarLoopResult]: For program point L78-3(lines 78 82) no Hoare annotation was computed. [2020-12-09 19:52:41,701 INFO L262 CegarLoopResult]: For program point L70(lines 70 73) no Hoare annotation was computed. [2020-12-09 19:52:41,701 INFO L258 CegarLoopResult]: At program point L55-2(lines 55 64) the Hoare annotation is: false [2020-12-09 19:52:41,702 INFO L262 CegarLoopResult]: For program point L55-3(lines 19 84) no Hoare annotation was computed. [2020-12-09 19:52:41,702 INFO L262 CegarLoopResult]: For program point L47(lines 47 48) no Hoare annotation was computed. [2020-12-09 19:52:41,702 INFO L262 CegarLoopResult]: For program point L47-2(lines 47 48) no Hoare annotation was computed. [2020-12-09 19:52:41,702 INFO L265 CegarLoopResult]: At program point L105(lines 86 106) the Hoare annotation is: true [2020-12-09 19:52:41,702 INFO L262 CegarLoopResult]: For program point L31(lines 31 32) no Hoare annotation was computed. [2020-12-09 19:52:41,702 INFO L258 CegarLoopResult]: At program point L15(line 15) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (exists ((ULTIMATE.start___ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (= ULTIMATE.start___ieee754_sqrtf_~hx~0 (bvand (_ bv2147483647 32) ULTIMATE.start___ieee754_sqrtf_~ix~0)) (= ULTIMATE.start___ieee754_sqrtf_~x (fp ((_ extract 31 31) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 30 23) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 22 0) ULTIMATE.start___ieee754_sqrtf_~ix~0))))) (exists ((ULTIMATE.start___ieee754_sqrtf_~x (_ FloatingPoint 8 24))) (= |ULTIMATE.start___ieee754_sqrtf_#res| (let ((.cse0 (fp.sub roundNearestTiesToEven ULTIMATE.start___ieee754_sqrtf_~x ULTIMATE.start___ieee754_sqrtf_~x))) (fp.div roundNearestTiesToEven .cse0 .cse0)))) (fp.lt ULTIMATE.start___ieee754_sqrtf_~x (fp.neg (_ +zero 8 24))) (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (= ULTIMATE.start___ieee754_sqrtf_~x (fp ((_ extract 31 31) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 30 23) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 22 0) ULTIMATE.start___ieee754_sqrtf_~ix~0)))) [2020-12-09 19:52:41,702 INFO L262 CegarLoopResult]: For program point L40(lines 40 44) no Hoare annotation was computed. [2020-12-09 19:52:41,702 INFO L262 CegarLoopResult]: For program point L40-2(lines 40 44) no Hoare annotation was computed. [2020-12-09 19:52:41,702 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-09 19:52:41,702 INFO L262 CegarLoopResult]: For program point L57(lines 57 61) no Hoare annotation was computed. [2020-12-09 19:52:41,703 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 100) no Hoare annotation was computed. [2020-12-09 19:52:41,703 INFO L262 CegarLoopResult]: For program point L24-1(lines 24 28) no Hoare annotation was computed. [2020-12-09 19:52:41,703 INFO L262 CegarLoopResult]: For program point L57-2(lines 57 61) no Hoare annotation was computed. [2020-12-09 19:52:41,703 INFO L258 CegarLoopResult]: At program point L24-2(lines 24 28) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (fp.lt ULTIMATE.start___ieee754_sqrtf_~x (fp.neg (_ +zero 8 24)))) [2020-12-09 19:52:41,703 INFO L262 CegarLoopResult]: For program point L24-3(lines 24 28) no Hoare annotation was computed. [2020-12-09 19:52:41,703 INFO L262 CegarLoopResult]: For program point L41-2(lines 41 42) no Hoare annotation was computed. [2020-12-09 19:52:41,703 INFO L258 CegarLoopResult]: At program point L41-3(lines 41 42) the Hoare annotation is: false [2020-12-09 19:52:41,703 INFO L262 CegarLoopResult]: For program point L41-4(lines 41 42) no Hoare annotation was computed. [2020-12-09 19:52:41,703 INFO L262 CegarLoopResult]: For program point L99(lines 99 102) no Hoare annotation was computed. [2020-12-09 19:52:41,703 INFO L262 CegarLoopResult]: For program point L66(lines 66 75) no Hoare annotation was computed. [2020-12-09 19:52:41,703 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-09 19:52:41,703 INFO L258 CegarLoopResult]: At program point L83(lines 19 84) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (exists ((ULTIMATE.start___ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (= ULTIMATE.start___ieee754_sqrtf_~hx~0 (bvand (_ bv2147483647 32) ULTIMATE.start___ieee754_sqrtf_~ix~0)) (= ULTIMATE.start___ieee754_sqrtf_~x (fp ((_ extract 31 31) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 30 23) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 22 0) ULTIMATE.start___ieee754_sqrtf_~ix~0))))) (exists ((ULTIMATE.start___ieee754_sqrtf_~x (_ FloatingPoint 8 24))) (= |ULTIMATE.start___ieee754_sqrtf_#res| (let ((.cse0 (fp.sub roundNearestTiesToEven ULTIMATE.start___ieee754_sqrtf_~x ULTIMATE.start___ieee754_sqrtf_~x))) (fp.div roundNearestTiesToEven .cse0 .cse0)))) (fp.lt ULTIMATE.start___ieee754_sqrtf_~x (fp.neg (_ +zero 8 24))) (= ULTIMATE.start___ieee754_sqrtf_~x (fp ((_ extract 31 31) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 30 23) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 22 0) ULTIMATE.start___ieee754_sqrtf_~ix~0)))) [2020-12-09 19:52:41,704 INFO L262 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-12-09 19:52:41,704 INFO L262 CegarLoopResult]: For program point L34(lines 34 35) no Hoare annotation was computed. [2020-12-09 19:52:41,704 INFO L262 CegarLoopResult]: For program point L68(lines 68 74) no Hoare annotation was computed. [2020-12-09 19:52:41,713 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 19:52:41,714 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-09 19:52:41,714 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-09 19:52:41,714 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-09 19:52:41,714 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-09 19:52:41,715 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 19:52:41,715 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 19:52:41,715 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~x,QUANTIFIED] [2020-12-09 19:52:41,715 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~x,QUANTIFIED] [2020-12-09 19:52:41,715 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 19:52:41,716 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~x,QUANTIFIED] [2020-12-09 19:52:41,716 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~x,QUANTIFIED] [2020-12-09 19:52:41,721 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 19:52:41,721 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-09 19:52:41,721 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-09 19:52:41,722 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-09 19:52:41,722 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-09 19:52:41,722 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 19:52:41,722 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 19:52:41,722 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~x,QUANTIFIED] [2020-12-09 19:52:41,722 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~x,QUANTIFIED] [2020-12-09 19:52:41,723 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 19:52:41,723 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~x,QUANTIFIED] [2020-12-09 19:52:41,723 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~x,QUANTIFIED] [2020-12-09 19:52:41,724 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 19:52:41,725 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 19:52:41,725 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 19:52:41,725 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-09 19:52:41,726 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-09 19:52:41,726 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-09 19:52:41,726 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-09 19:52:41,726 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 19:52:41,726 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 19:52:41,726 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~x,QUANTIFIED] [2020-12-09 19:52:41,727 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~x,QUANTIFIED] [2020-12-09 19:52:41,727 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 19:52:41,727 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~x,QUANTIFIED] [2020-12-09 19:52:41,727 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~x,QUANTIFIED] [2020-12-09 19:52:41,728 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 19:52:41,728 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-09 19:52:41,728 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-09 19:52:41,728 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-09 19:52:41,729 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-09 19:52:41,729 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 19:52:41,729 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 19:52:41,729 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~x,QUANTIFIED] [2020-12-09 19:52:41,729 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~x,QUANTIFIED] [2020-12-09 19:52:41,729 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 19:52:41,730 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~x,QUANTIFIED] [2020-12-09 19:52:41,730 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~x,QUANTIFIED] [2020-12-09 19:52:41,732 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 07:52:41 BoogieIcfgContainer [2020-12-09 19:52:41,732 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 19:52:41,733 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 19:52:41,733 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 19:52:41,733 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 19:52:41,734 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:50:06" (3/4) ... [2020-12-09 19:52:41,737 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-09 19:52:41,746 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2020-12-09 19:52:41,747 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-12-09 19:52:41,747 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 19:52:41,747 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 19:52:41,764 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && (\exists ULTIMATE.start___ieee754_sqrtf_~ix~0 : bv32 :: hx == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_sqrtf_~ix~0) && x == ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_sqrtf_~ix~0[31:31], ULTIMATE.start___ieee754_sqrtf_~ix~0[30:23], ULTIMATE.start___ieee754_sqrtf_~ix~0[22:0]))) && (\exists ULTIMATE.start___ieee754_sqrtf_~x : C_FLOAT :: \result == ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ULTIMATE.start___ieee754_sqrtf_~x, ULTIMATE.start___ieee754_sqrtf_~x), ~fp.sub~FLOAT(~roundNearestTiesToEven, ULTIMATE.start___ieee754_sqrtf_~x, ULTIMATE.start___ieee754_sqrtf_~x)))) && ~fp.lt~FLOAT(x, ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()))) && x == ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) [2020-12-09 19:52:41,764 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && (\exists ULTIMATE.start___ieee754_sqrtf_~ix~0 : bv32 :: hx == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_sqrtf_~ix~0) && x == ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_sqrtf_~ix~0[31:31], ULTIMATE.start___ieee754_sqrtf_~ix~0[30:23], ULTIMATE.start___ieee754_sqrtf_~ix~0[22:0]))) && (\exists ULTIMATE.start___ieee754_sqrtf_~x : C_FLOAT :: \result == ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ULTIMATE.start___ieee754_sqrtf_~x, ULTIMATE.start___ieee754_sqrtf_~x), ~fp.sub~FLOAT(~roundNearestTiesToEven, ULTIMATE.start___ieee754_sqrtf_~x, ULTIMATE.start___ieee754_sqrtf_~x)))) && ~fp.lt~FLOAT(x, ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()))) && 1bv32 == \result) && x == ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) [2020-12-09 19:52:41,782 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_b93d1781-884c-4a36-97c4-68af0ec0ea58/bin/utaipan/witness.graphml [2020-12-09 19:52:41,782 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 19:52:41,783 INFO L168 Benchmark]: Toolchain (without parser) took 157111.54 ms. Allocated memory was 79.7 MB in the beginning and 102.8 MB in the end (delta: 23.1 MB). Free memory was 45.3 MB in the beginning and 57.9 MB in the end (delta: -12.6 MB). Peak memory consumption was 11.4 MB. Max. memory is 16.1 GB. [2020-12-09 19:52:41,783 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 79.7 MB. Free memory was 62.0 MB in the beginning and 61.9 MB in the end (delta: 134.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 19:52:41,784 INFO L168 Benchmark]: CACSL2BoogieTranslator took 187.79 ms. Allocated memory is still 79.7 MB. Free memory was 45.2 MB in the beginning and 56.6 MB in the end (delta: -11.4 MB). Peak memory consumption was 8.2 MB. Max. memory is 16.1 GB. [2020-12-09 19:52:41,784 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.95 ms. Allocated memory is still 79.7 MB. Free memory was 56.6 MB in the beginning and 62.8 MB in the end (delta: -6.2 MB). Peak memory consumption was 2.8 MB. Max. memory is 16.1 GB. [2020-12-09 19:52:41,784 INFO L168 Benchmark]: Boogie Preprocessor took 37.17 ms. Allocated memory is still 79.7 MB. Free memory was 62.8 MB in the beginning and 61.2 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 19:52:41,785 INFO L168 Benchmark]: RCFGBuilder took 1234.49 ms. Allocated memory is still 79.7 MB. Free memory was 61.2 MB in the beginning and 41.0 MB in the end (delta: 20.2 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2020-12-09 19:52:41,785 INFO L168 Benchmark]: TraceAbstraction took 155548.82 ms. Allocated memory was 79.7 MB in the beginning and 102.8 MB in the end (delta: 23.1 MB). Free memory was 40.7 MB in the beginning and 61.3 MB in the end (delta: -20.5 MB). Peak memory consumption was 4.6 MB. Max. memory is 16.1 GB. [2020-12-09 19:52:41,785 INFO L168 Benchmark]: Witness Printer took 49.53 ms. Allocated memory is still 102.8 MB. Free memory was 61.3 MB in the beginning and 57.9 MB in the end (delta: 3.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 19:52:41,787 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 79.7 MB. Free memory was 62.0 MB in the beginning and 61.9 MB in the end (delta: 134.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 187.79 ms. Allocated memory is still 79.7 MB. Free memory was 45.2 MB in the beginning and 56.6 MB in the end (delta: -11.4 MB). Peak memory consumption was 8.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 47.95 ms. Allocated memory is still 79.7 MB. Free memory was 56.6 MB in the beginning and 62.8 MB in the end (delta: -6.2 MB). Peak memory consumption was 2.8 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 37.17 ms. Allocated memory is still 79.7 MB. Free memory was 62.8 MB in the beginning and 61.2 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 1234.49 ms. Allocated memory is still 79.7 MB. Free memory was 61.2 MB in the beginning and 41.0 MB in the end (delta: 20.2 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 155548.82 ms. Allocated memory was 79.7 MB in the beginning and 102.8 MB in the end (delta: 23.1 MB). Free memory was 40.7 MB in the beginning and 61.3 MB in the end (delta: -20.5 MB). Peak memory consumption was 4.6 MB. Max. memory is 16.1 GB. * Witness Printer took 49.53 ms. Allocated memory is still 102.8 MB. Free memory was 61.3 MB in the beginning and 57.9 MB in the end (delta: 3.4 MB). Peak memory consumption was 2.1 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 Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~x,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 100]: 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 [2020-12-09 19:52:41,792 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 19:52:41,792 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-09 19:52:41,792 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-09 19:52:41,792 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-09 19:52:41,792 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-09 19:52:41,792 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 19:52:41,792 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 19:52:41,792 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~x,QUANTIFIED] [2020-12-09 19:52:41,792 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~x,QUANTIFIED] [2020-12-09 19:52:41,792 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 19:52:41,792 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~x,QUANTIFIED] [2020-12-09 19:52:41,792 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~x,QUANTIFIED] [2020-12-09 19:52:41,793 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 19:52:41,793 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-09 19:52:41,793 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-09 19:52:41,793 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-09 19:52:41,793 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-09 19:52:41,793 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 19:52:41,793 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 19:52:41,794 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~x,QUANTIFIED] [2020-12-09 19:52:41,794 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~x,QUANTIFIED] [2020-12-09 19:52:41,794 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 19:52:41,794 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~x,QUANTIFIED] [2020-12-09 19:52:41,794 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~x,QUANTIFIED] Derived loop invariant: ((((unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && (\exists ULTIMATE.start___ieee754_sqrtf_~ix~0 : bv32 :: hx == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_sqrtf_~ix~0) && x == ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_sqrtf_~ix~0[31:31], ULTIMATE.start___ieee754_sqrtf_~ix~0[30:23], ULTIMATE.start___ieee754_sqrtf_~ix~0[22:0]))) && (\exists ULTIMATE.start___ieee754_sqrtf_~x : C_FLOAT :: \result == ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ULTIMATE.start___ieee754_sqrtf_~x, ULTIMATE.start___ieee754_sqrtf_~x), ~fp.sub~FLOAT(~roundNearestTiesToEven, ULTIMATE.start___ieee754_sqrtf_~x, ULTIMATE.start___ieee754_sqrtf_~x)))) && ~fp.lt~FLOAT(x, ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()))) && 1bv32 == \result) && x == ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) - InvariantResult [Line: 55]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 24]: Loop Invariant [2020-12-09 19:52:41,794 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 19:52:41,794 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && ~fp.lt~FLOAT(x, ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) - InvariantResult [Line: 41]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 78]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 19]: Loop Invariant [2020-12-09 19:52:41,795 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 19:52:41,795 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-09 19:52:41,795 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-09 19:52:41,795 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-09 19:52:41,795 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-09 19:52:41,795 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 19:52:41,795 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 19:52:41,795 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~x,QUANTIFIED] [2020-12-09 19:52:41,795 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~x,QUANTIFIED] [2020-12-09 19:52:41,795 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 19:52:41,795 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~x,QUANTIFIED] [2020-12-09 19:52:41,796 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~x,QUANTIFIED] [2020-12-09 19:52:41,796 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 19:52:41,796 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-09 19:52:41,796 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-09 19:52:41,796 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-09 19:52:41,796 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-09 19:52:41,796 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 19:52:41,796 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 19:52:41,796 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~x,QUANTIFIED] [2020-12-09 19:52:41,796 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~x,QUANTIFIED] [2020-12-09 19:52:41,797 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-09 19:52:41,797 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~x,QUANTIFIED] [2020-12-09 19:52:41,797 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~x,QUANTIFIED] Derived loop invariant: (((unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && (\exists ULTIMATE.start___ieee754_sqrtf_~ix~0 : bv32 :: hx == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_sqrtf_~ix~0) && x == ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_sqrtf_~ix~0[31:31], ULTIMATE.start___ieee754_sqrtf_~ix~0[30:23], ULTIMATE.start___ieee754_sqrtf_~ix~0[22:0]))) && (\exists ULTIMATE.start___ieee754_sqrtf_~x : C_FLOAT :: \result == ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ULTIMATE.start___ieee754_sqrtf_~x, ULTIMATE.start___ieee754_sqrtf_~x), ~fp.sub~FLOAT(~roundNearestTiesToEven, ULTIMATE.start___ieee754_sqrtf_~x, ULTIMATE.start___ieee754_sqrtf_~x)))) && ~fp.lt~FLOAT(x, ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()))) && x == ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) - InvariantResult [Line: 86]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 35 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 121.6s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 102.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 33.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 60 SDtfs, 34 SDslu, 37 SDs, 0 SdLazy, 40 SolverSat, 2 SolverUnsat, 10 SolverUnknown, 0 SolverNotchecked, 37.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 38 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 71.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=35occurred 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, 13 NumberOfFragments, 107 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 161 FormulaSimplificationTreeSizeReductionInter, 33.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 18.4s InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 31 ConstructedInterpolants, 3 QuantifiedInterpolants, 1849 SizeOfPredicates, 19 NumberOfNonLiveVariables, 135 ConjunctsInSsa, 25 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! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...