./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1122b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_f1dc5964-e736-46e1-addf-5c4d5d9eaf5d/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_f1dc5964-e736-46e1-addf-5c4d5d9eaf5d/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f1dc5964-e736-46e1-addf-5c4d5d9eaf5d/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f1dc5964-e736-46e1-addf-5c4d5d9eaf5d/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1122b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_f1dc5964-e736-46e1-addf-5c4d5d9eaf5d/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f1dc5964-e736-46e1-addf-5c4d5d9eaf5d/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 d8b47ecdb704e16d352286b75129bb9ac82f6df5 ................................................................................................................................................................................................................................................................................................................. 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_f1dc5964-e736-46e1-addf-5c4d5d9eaf5d/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_f1dc5964-e736-46e1-addf-5c4d5d9eaf5d/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f1dc5964-e736-46e1-addf-5c4d5d9eaf5d/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f1dc5964-e736-46e1-addf-5c4d5d9eaf5d/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1122b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_f1dc5964-e736-46e1-addf-5c4d5d9eaf5d/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f1dc5964-e736-46e1-addf-5c4d5d9eaf5d/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 d8b47ecdb704e16d352286b75129bb9ac82f6df5 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 07:25:54,575 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 07:25:54,595 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 07:25:54,650 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 07:25:54,650 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 07:25:54,652 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 07:25:54,655 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 07:25:54,660 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 07:25:54,663 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 07:25:54,665 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 07:25:54,667 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 07:25:54,670 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 07:25:54,671 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 07:25:54,673 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 07:25:54,674 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 07:25:54,675 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 07:25:54,676 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 07:25:54,677 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 07:25:54,679 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 07:25:54,681 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 07:25:54,683 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 07:25:54,684 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 07:25:54,686 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 07:25:54,686 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 07:25:54,690 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 07:25:54,690 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 07:25:54,690 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 07:25:54,691 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 07:25:54,692 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 07:25:54,693 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 07:25:54,693 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 07:25:54,694 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 07:25:54,695 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 07:25:54,696 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 07:25:54,697 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 07:25:54,698 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 07:25:54,702 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 07:25:54,703 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 07:25:54,703 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 07:25:54,704 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 07:25:54,705 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 07:25:54,707 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f1dc5964-e736-46e1-addf-5c4d5d9eaf5d/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-28 07:25:54,753 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 07:25:54,754 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 07:25:54,755 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 07:25:54,755 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-28 07:25:54,755 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-28 07:25:54,756 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-28 07:25:54,756 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-28 07:25:54,756 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-28 07:25:54,756 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-28 07:25:54,756 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-28 07:25:54,757 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-28 07:25:54,758 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-28 07:25:54,758 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-28 07:25:54,758 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-28 07:25:54,758 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-28 07:25:54,759 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 07:25:54,759 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 07:25:54,760 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 07:25:54,760 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 07:25:54,760 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 07:25:54,760 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 07:25:54,760 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 07:25:54,761 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 07:25:54,761 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-28 07:25:54,761 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 07:25:54,761 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 07:25:54,761 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 07:25:54,762 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 07:25:54,762 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 07:25:54,763 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 07:25:54,764 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 07:25:54,764 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 07:25:54,764 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 07:25:54,764 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 07:25:54,765 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 07:25:54,765 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-28 07:25:54,765 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 07:25:54,765 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 07:25:54,766 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 07:25:54,766 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-28 07:25:54,766 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_f1dc5964-e736-46e1-addf-5c4d5d9eaf5d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_f1dc5964-e736-46e1-addf-5c4d5d9eaf5d/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d8b47ecdb704e16d352286b75129bb9ac82f6df5 [2020-11-28 07:25:55,020 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 07:25:55,043 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 07:25:55,046 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 07:25:55,047 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 07:25:55,047 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 07:25:55,048 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f1dc5964-e736-46e1-addf-5c4d5d9eaf5d/bin/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1122b.c [2020-11-28 07:25:55,132 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f1dc5964-e736-46e1-addf-5c4d5d9eaf5d/bin/utaipan/data/0920c2237/58a9df3fdb5d485e826c45f2182a7ce7/FLAG66aa1d11e [2020-11-28 07:25:55,669 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 07:25:55,670 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f1dc5964-e736-46e1-addf-5c4d5d9eaf5d/sv-benchmarks/c/float-newlib/float_req_bl_1122b.c [2020-11-28 07:25:55,683 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f1dc5964-e736-46e1-addf-5c4d5d9eaf5d/bin/utaipan/data/0920c2237/58a9df3fdb5d485e826c45f2182a7ce7/FLAG66aa1d11e [2020-11-28 07:25:56,001 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f1dc5964-e736-46e1-addf-5c4d5d9eaf5d/bin/utaipan/data/0920c2237/58a9df3fdb5d485e826c45f2182a7ce7 [2020-11-28 07:25:56,003 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 07:25:56,005 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 07:25:56,007 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 07:25:56,007 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 07:25:56,010 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 07:25:56,011 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:25:56" (1/1) ... [2020-11-28 07:25:56,013 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30a64283 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:25:56, skipping insertion in model container [2020-11-28 07:25:56,013 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:25:56" (1/1) ... [2020-11-28 07:25:56,020 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 07:25:56,039 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 07:25:56,261 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:25:56,269 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 07:25:56,329 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:25:56,362 INFO L208 MainTranslator]: Completed translation [2020-11-28 07:25:56,362 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:25:56 WrapperNode [2020-11-28 07:25:56,364 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 07:25:56,365 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 07:25:56,365 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 07:25:56,365 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 07:25:56,372 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:25:56" (1/1) ... [2020-11-28 07:25:56,393 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:25:56" (1/1) ... [2020-11-28 07:25:56,433 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 07:25:56,436 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 07:25:56,437 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 07:25:56,437 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 07:25:56,446 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:25:56" (1/1) ... [2020-11-28 07:25:56,447 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:25:56" (1/1) ... [2020-11-28 07:25:56,463 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:25:56" (1/1) ... [2020-11-28 07:25:56,463 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:25:56" (1/1) ... [2020-11-28 07:25:56,471 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:25:56" (1/1) ... [2020-11-28 07:25:56,485 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:25:56" (1/1) ... [2020-11-28 07:25:56,490 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:25:56" (1/1) ... [2020-11-28 07:25:56,502 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 07:25:56,503 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 07:25:56,503 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 07:25:56,504 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 07:25:56,505 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:25:56" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f1dc5964-e736-46e1-addf-5c4d5d9eaf5d/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 07:25:56,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 07:25:56,579 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 07:25:56,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-28 07:25:56,580 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-11-28 07:25:56,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-28 07:25:56,580 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 07:25:56,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 07:25:56,580 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-28 07:25:56,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-11-28 07:25:56,582 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 07:25:57,257 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 07:25:57,257 INFO L298 CfgBuilder]: Removed 22 assume(true) statements. [2020-11-28 07:25:57,259 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:25:57 BoogieIcfgContainer [2020-11-28 07:25:57,259 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 07:25:57,260 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 07:25:57,260 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 07:25:57,263 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 07:25:57,263 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 07:25:56" (1/3) ... [2020-11-28 07:25:57,264 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ad7ee8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:25:57, skipping insertion in model container [2020-11-28 07:25:57,264 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:25:56" (2/3) ... [2020-11-28 07:25:57,265 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ad7ee8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:25:57, skipping insertion in model container [2020-11-28 07:25:57,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:25:57" (3/3) ... [2020-11-28 07:25:57,266 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1122b.c [2020-11-28 07:25:57,277 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 07:25:57,281 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-28 07:25:57,292 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-28 07:25:57,314 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 07:25:57,315 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 07:25:57,315 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 07:25:57,315 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 07:25:57,315 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 07:25:57,315 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 07:25:57,315 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 07:25:57,315 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 07:25:57,327 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2020-11-28 07:25:57,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-28 07:25:57,332 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:25:57,332 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:25:57,333 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:25:57,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:25:57,338 INFO L82 PathProgramCache]: Analyzing trace with hash 530996632, now seen corresponding path program 1 times [2020-11-28 07:25:57,347 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:25:57,347 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132662733] [2020-11-28 07:25:57,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:25:57,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:25:57,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:25:57,472 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132662733] [2020-11-28 07:25:57,472 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:25:57,473 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 07:25:57,474 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940206119] [2020-11-28 07:25:57,477 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-28 07:25:57,478 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:25:57,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-28 07:25:57,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 07:25:57,496 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 2 states. [2020-11-28 07:25:57,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:25:57,520 INFO L93 Difference]: Finished difference Result 67 states and 111 transitions. [2020-11-28 07:25:57,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-28 07:25:57,522 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2020-11-28 07:25:57,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:25:57,538 INFO L225 Difference]: With dead ends: 67 [2020-11-28 07:25:57,538 INFO L226 Difference]: Without dead ends: 32 [2020-11-28 07:25:57,546 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 07:25:57,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-11-28 07:25:57,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2020-11-28 07:25:57,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-11-28 07:25:57,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 44 transitions. [2020-11-28 07:25:57,578 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 44 transitions. Word has length 8 [2020-11-28 07:25:57,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:25:57,578 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 44 transitions. [2020-11-28 07:25:57,578 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-28 07:25:57,578 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 44 transitions. [2020-11-28 07:25:57,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-28 07:25:57,579 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:25:57,579 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:25:57,579 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 07:25:57,579 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:25:57,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:25:57,580 INFO L82 PathProgramCache]: Analyzing trace with hash 539083387, now seen corresponding path program 1 times [2020-11-28 07:25:57,580 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:25:57,581 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137212278] [2020-11-28 07:25:57,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:25:57,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 07:25:57,701 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 07:25:57,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 07:25:57,787 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 07:25:57,820 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-11-28 07:25:57,820 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 07:25:57,821 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 07:25:57,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 07:25:57 BoogieIcfgContainer [2020-11-28 07:25:57,849 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 07:25:57,849 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 07:25:57,849 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 07:25:57,850 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 07:25:57,850 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:25:57" (3/4) ... [2020-11-28 07:25:57,852 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-28 07:25:57,852 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 07:25:57,854 INFO L168 Benchmark]: Toolchain (without parser) took 1848.36 ms. Allocated memory is still 100.7 MB. Free memory was 67.6 MB in the beginning and 46.5 MB in the end (delta: 21.1 MB). Peak memory consumption was 20.2 MB. Max. memory is 16.1 GB. [2020-11-28 07:25:57,855 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 75.5 MB. Free memory was 33.4 MB in the beginning and 33.4 MB in the end (delta: 36.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:25:57,855 INFO L168 Benchmark]: CACSL2BoogieTranslator took 357.64 ms. Allocated memory is still 100.7 MB. Free memory was 67.4 MB in the beginning and 74.8 MB in the end (delta: -7.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 07:25:57,856 INFO L168 Benchmark]: Boogie Procedure Inliner took 70.47 ms. Allocated memory is still 100.7 MB. Free memory was 74.8 MB in the beginning and 72.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:25:57,857 INFO L168 Benchmark]: Boogie Preprocessor took 66.57 ms. Allocated memory is still 100.7 MB. Free memory was 72.7 MB in the beginning and 71.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:25:57,858 INFO L168 Benchmark]: RCFGBuilder took 755.81 ms. Allocated memory is still 100.7 MB. Free memory was 71.1 MB in the beginning and 72.7 MB in the end (delta: -1.6 MB). Peak memory consumption was 31.7 MB. Max. memory is 16.1 GB. [2020-11-28 07:25:57,858 INFO L168 Benchmark]: TraceAbstraction took 588.62 ms. Allocated memory is still 100.7 MB. Free memory was 72.2 MB in the beginning and 46.5 MB in the end (delta: 25.7 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. [2020-11-28 07:25:57,859 INFO L168 Benchmark]: Witness Printer took 3.16 ms. Allocated memory is still 100.7 MB. Free memory is still 46.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:25:57,862 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 75.5 MB. Free memory was 33.4 MB in the beginning and 33.4 MB in the end (delta: 36.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 357.64 ms. Allocated memory is still 100.7 MB. Free memory was 67.4 MB in the beginning and 74.8 MB in the end (delta: -7.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 70.47 ms. Allocated memory is still 100.7 MB. Free memory was 74.8 MB in the beginning and 72.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 66.57 ms. Allocated memory is still 100.7 MB. Free memory was 72.7 MB in the beginning and 71.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 755.81 ms. Allocated memory is still 100.7 MB. Free memory was 71.1 MB in the beginning and 72.7 MB in the end (delta: -1.6 MB). Peak memory consumption was 31.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 588.62 ms. Allocated memory is still 100.7 MB. Free memory was 72.2 MB in the beginning and 46.5 MB in the end (delta: 25.7 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. * Witness Printer took 3.16 ms. Allocated memory is still 100.7 MB. Free memory is still 46.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 110, overapproximation of someUnaryDOUBLEoperation at line 16, overapproximation of bitwiseAnd at line 32, overapproximation of someBinaryArithmeticFLOAToperation at line 37, overapproximation of bitwiseXor at line 33. Possible FailurePath: [L14-L17] static const float one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; [L119] float x = -1.0f / 0.0f; [L120] float y = __VERIFIER_nondet_float(); [L20] __int32_t n, hx, hy, hz, ix, iy, sx, i; VAL [one_fmod=1, Zero_fmod={9:0}] [L23] ieee_float_shape_type gf_u; [L24] gf_u.value = (x) [L25] EXPR gf_u.word [L25] (hx) = gf_u.word [L28] ieee_float_shape_type gf_u; [L29] gf_u.value = (y) [L30] EXPR gf_u.word [L30] (hy) = gf_u.word [L32] sx = hx & 0x80000000 [L33] hx ^= sx [L34] hy &= 0x7fffffff VAL [one_fmod=1, Zero_fmod={9:0}] [L36] COND TRUE ((hy) == 0) || !((hx) < 0x7f800000L) || ((hy) > 0x7f800000L) [L37] return (x * y) / (x * y); VAL [one_fmod=1, Zero_fmod={9:0}] [L121] float res = fmod_float(x, y); [L110] return x != x; [L124] COND TRUE !isnan_float(res) [L3] __assert_fail("0", "float_req_bl_1122b.c", 3, "reach_error") VAL [one_fmod=1, Zero_fmod={9:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 34 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 46 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=34occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 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-a4ecdab [2020-11-28 07:26:00,160 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 07:26:00,162 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 07:26:00,209 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 07:26:00,210 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 07:26:00,211 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 07:26:00,213 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 07:26:00,215 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 07:26:00,217 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 07:26:00,218 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 07:26:00,220 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 07:26:00,221 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 07:26:00,222 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 07:26:00,223 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 07:26:00,224 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 07:26:00,226 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 07:26:00,227 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 07:26:00,228 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 07:26:00,230 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 07:26:00,232 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 07:26:00,234 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 07:26:00,239 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 07:26:00,242 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 07:26:00,246 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 07:26:00,249 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 07:26:00,251 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 07:26:00,252 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 07:26:00,253 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 07:26:00,254 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 07:26:00,255 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 07:26:00,256 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 07:26:00,259 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 07:26:00,260 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 07:26:00,262 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 07:26:00,263 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 07:26:00,264 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 07:26:00,264 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 07:26:00,265 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 07:26:00,265 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 07:26:00,267 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 07:26:00,267 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 07:26:00,268 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f1dc5964-e736-46e1-addf-5c4d5d9eaf5d/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-11-28 07:26:00,313 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 07:26:00,313 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 07:26:00,314 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 07:26:00,314 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-28 07:26:00,315 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-28 07:26:00,315 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-28 07:26:00,315 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-28 07:26:00,315 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-28 07:26:00,315 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-28 07:26:00,316 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 07:26:00,316 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 07:26:00,316 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 07:26:00,317 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 07:26:00,317 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 07:26:00,317 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 07:26:00,317 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 07:26:00,317 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-28 07:26:00,317 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-28 07:26:00,318 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-28 07:26:00,318 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 07:26:00,318 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 07:26:00,318 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 07:26:00,318 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 07:26:00,319 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 07:26:00,319 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 07:26:00,319 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 07:26:00,319 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 07:26:00,319 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 07:26:00,320 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 07:26:00,320 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 07:26:00,320 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 07:26:00,320 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-28 07:26:00,320 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-28 07:26:00,320 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 07:26:00,321 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 07:26:00,321 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-28 07:26:00,321 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_f1dc5964-e736-46e1-addf-5c4d5d9eaf5d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_f1dc5964-e736-46e1-addf-5c4d5d9eaf5d/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d8b47ecdb704e16d352286b75129bb9ac82f6df5 [2020-11-28 07:26:00,659 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 07:26:00,678 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 07:26:00,681 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 07:26:00,682 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 07:26:00,683 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 07:26:00,683 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f1dc5964-e736-46e1-addf-5c4d5d9eaf5d/bin/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1122b.c [2020-11-28 07:26:00,746 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f1dc5964-e736-46e1-addf-5c4d5d9eaf5d/bin/utaipan/data/d5ba233e2/20350627d5f740f282ecb636cc322936/FLAG7639bc787 [2020-11-28 07:26:01,292 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 07:26:01,292 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f1dc5964-e736-46e1-addf-5c4d5d9eaf5d/sv-benchmarks/c/float-newlib/float_req_bl_1122b.c [2020-11-28 07:26:01,300 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f1dc5964-e736-46e1-addf-5c4d5d9eaf5d/bin/utaipan/data/d5ba233e2/20350627d5f740f282ecb636cc322936/FLAG7639bc787 [2020-11-28 07:26:01,612 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f1dc5964-e736-46e1-addf-5c4d5d9eaf5d/bin/utaipan/data/d5ba233e2/20350627d5f740f282ecb636cc322936 [2020-11-28 07:26:01,614 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 07:26:01,615 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 07:26:01,617 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 07:26:01,617 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 07:26:01,620 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 07:26:01,621 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:26:01" (1/1) ... [2020-11-28 07:26:01,622 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@266efc35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:26:01, skipping insertion in model container [2020-11-28 07:26:01,623 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:26:01" (1/1) ... [2020-11-28 07:26:01,629 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 07:26:01,647 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 07:26:01,843 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:26:01,856 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 07:26:01,891 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:26:01,909 INFO L208 MainTranslator]: Completed translation [2020-11-28 07:26:01,909 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:26:01 WrapperNode [2020-11-28 07:26:01,910 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 07:26:01,911 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 07:26:01,911 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 07:26:01,911 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 07:26:01,918 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:26:01" (1/1) ... [2020-11-28 07:26:01,938 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:26:01" (1/1) ... [2020-11-28 07:26:01,999 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 07:26:01,999 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 07:26:01,999 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 07:26:02,000 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 07:26:02,012 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:26:01" (1/1) ... [2020-11-28 07:26:02,013 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:26:01" (1/1) ... [2020-11-28 07:26:02,019 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:26:01" (1/1) ... [2020-11-28 07:26:02,019 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:26:01" (1/1) ... [2020-11-28 07:26:02,029 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:26:01" (1/1) ... [2020-11-28 07:26:02,035 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:26:01" (1/1) ... [2020-11-28 07:26:02,038 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:26:01" (1/1) ... [2020-11-28 07:26:02,042 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 07:26:02,043 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 07:26:02,043 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 07:26:02,043 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 07:26:02,044 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:26:01" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f1dc5964-e736-46e1-addf-5c4d5d9eaf5d/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 07:26:02,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2020-11-28 07:26:02,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-28 07:26:02,115 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 07:26:02,115 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-11-28 07:26:02,115 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-28 07:26:02,116 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 07:26:02,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 07:26:02,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-11-28 07:26:02,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-28 07:26:02,116 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-28 07:26:03,761 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 07:26:03,762 INFO L298 CfgBuilder]: Removed 22 assume(true) statements. [2020-11-28 07:26:03,763 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:26:03 BoogieIcfgContainer [2020-11-28 07:26:03,763 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 07:26:03,765 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 07:26:03,765 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 07:26:03,768 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 07:26:03,769 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 07:26:01" (1/3) ... [2020-11-28 07:26:03,770 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e6fdea0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:26:03, skipping insertion in model container [2020-11-28 07:26:03,770 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:26:01" (2/3) ... [2020-11-28 07:26:03,770 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e6fdea0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:26:03, skipping insertion in model container [2020-11-28 07:26:03,770 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:26:03" (3/3) ... [2020-11-28 07:26:03,772 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1122b.c [2020-11-28 07:26:03,783 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 07:26:03,787 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-28 07:26:03,797 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-28 07:26:03,835 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 07:26:03,835 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 07:26:03,835 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 07:26:03,835 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 07:26:03,836 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 07:26:03,836 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 07:26:03,836 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 07:26:03,836 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 07:26:03,851 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states. [2020-11-28 07:26:03,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-28 07:26:03,856 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:26:03,857 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:26:03,857 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:26:03,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:26:03,863 INFO L82 PathProgramCache]: Analyzing trace with hash 666555284, now seen corresponding path program 1 times [2020-11-28 07:26:03,873 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-28 07:26:03,874 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [695222937] [2020-11-28 07:26:03,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f1dc5964-e736-46e1-addf-5c4d5d9eaf5d/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-11-28 07:26:04,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:26:04,280 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-28 07:26:04,285 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 07:26:04,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:26:04,304 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 07:26:04,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:26:04,312 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [695222937] [2020-11-28 07:26:04,312 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:26:04,313 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-28 07:26:04,313 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072436933] [2020-11-28 07:26:04,328 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-28 07:26:04,328 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-28 07:26:04,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-28 07:26:04,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 07:26:04,349 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 2 states. [2020-11-28 07:26:04,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:26:04,378 INFO L93 Difference]: Finished difference Result 83 states and 139 transitions. [2020-11-28 07:26:04,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-28 07:26:04,379 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-11-28 07:26:04,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:26:04,389 INFO L225 Difference]: With dead ends: 83 [2020-11-28 07:26:04,390 INFO L226 Difference]: Without dead ends: 39 [2020-11-28 07:26:04,393 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-28 07:26:04,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-11-28 07:26:04,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2020-11-28 07:26:04,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-11-28 07:26:04,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 54 transitions. [2020-11-28 07:26:04,424 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 54 transitions. Word has length 10 [2020-11-28 07:26:04,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:26:04,424 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 54 transitions. [2020-11-28 07:26:04,424 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-28 07:26:04,424 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 54 transitions. [2020-11-28 07:26:04,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-28 07:26:04,425 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:26:04,425 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:26:04,634 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-28 07:26:04,635 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:26:04,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:26:04,636 INFO L82 PathProgramCache]: Analyzing trace with hash 131116369, now seen corresponding path program 1 times [2020-11-28 07:26:04,637 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-28 07:26:04,638 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1588978186] [2020-11-28 07:26:04,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f1dc5964-e736-46e1-addf-5c4d5d9eaf5d/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-11-28 07:26:04,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:26:04,955 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-28 07:26:04,957 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 07:26:06,147 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2020-11-28 07:26:07,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:26:07,395 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 07:26:11,108 WARN L860 $PredicateComparison]: unable to prove that (forall ((ULTIMATE.start_fmod_float_~y (_ FloatingPoint 8 24))) (not (let ((.cse0 (let ((.cse1 (fp.mul c_currentRoundingMode c_ULTIMATE.start_fmod_float_~x ULTIMATE.start_fmod_float_~y))) (fp.div c_currentRoundingMode .cse1 .cse1)))) (fp.eq .cse0 .cse0)))) is different from true [2020-11-28 07:26:11,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:26:11,362 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1588978186] [2020-11-28 07:26:11,362 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:26:11,362 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 11 [2020-11-28 07:26:11,362 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603469840] [2020-11-28 07:26:11,363 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-11-28 07:26:11,364 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-28 07:26:11,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-11-28 07:26:11,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=69, Unknown=1, NotChecked=16, Total=110 [2020-11-28 07:26:11,365 INFO L87 Difference]: Start difference. First operand 39 states and 54 transitions. Second operand 11 states. [2020-11-28 07:26:17,830 WARN L193 SmtUtils]: Spent 2.43 s on a formula simplification. DAG size of input: 22 DAG size of output: 20 [2020-11-28 07:26:21,866 WARN L193 SmtUtils]: Spent 3.11 s on a formula simplification. DAG size of input: 25 DAG size of output: 23 [2020-11-28 07:26:26,667 WARN L193 SmtUtils]: Spent 4.32 s on a formula simplification. DAG size of input: 27 DAG size of output: 25 [2020-11-28 07:26:27,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:26:27,065 INFO L93 Difference]: Finished difference Result 49 states and 62 transitions. [2020-11-28 07:26:27,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-28 07:26:27,066 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 12 [2020-11-28 07:26:27,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:26:27,067 INFO L225 Difference]: With dead ends: 49 [2020-11-28 07:26:27,067 INFO L226 Difference]: Without dead ends: 44 [2020-11-28 07:26:27,069 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 12 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 1 IntricatePredicates, 1 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 20.1s TimeCoverageRelationStatistics Valid=51, Invalid=108, Unknown=1, NotChecked=22, Total=182 [2020-11-28 07:26:27,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-11-28 07:26:27,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 39. [2020-11-28 07:26:27,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-11-28 07:26:27,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 53 transitions. [2020-11-28 07:26:27,076 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 53 transitions. Word has length 12 [2020-11-28 07:26:27,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:26:27,076 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 53 transitions. [2020-11-28 07:26:27,076 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-11-28 07:26:27,076 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 53 transitions. [2020-11-28 07:26:27,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-28 07:26:27,077 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:26:27,077 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-28 07:26:27,290 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-28 07:26:27,291 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:26:27,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:26:27,292 INFO L82 PathProgramCache]: Analyzing trace with hash -302456811, now seen corresponding path program 1 times [2020-11-28 07:26:27,292 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-28 07:26:27,293 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2075870683] [2020-11-28 07:26:27,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f1dc5964-e736-46e1-addf-5c4d5d9eaf5d/bin/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-11-28 07:26:27,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:26:27,409 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-28 07:26:27,411 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 07:26:27,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:26:27,517 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 07:26:27,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:26:27,649 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2075870683] [2020-11-28 07:26:27,649 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:26:27,649 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-11-28 07:26:27,649 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813707861] [2020-11-28 07:26:27,649 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-28 07:26:27,650 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-28 07:26:27,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-28 07:26:27,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-11-28 07:26:27,651 INFO L87 Difference]: Start difference. First operand 39 states and 53 transitions. Second operand 8 states. [2020-11-28 07:26:27,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:26:27,789 INFO L93 Difference]: Finished difference Result 39 states and 53 transitions. [2020-11-28 07:26:27,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 07:26:27,789 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 13 [2020-11-28 07:26:27,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:26:27,789 INFO L225 Difference]: With dead ends: 39 [2020-11-28 07:26:27,789 INFO L226 Difference]: Without dead ends: 0 [2020-11-28 07:26:27,790 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-11-28 07:26:27,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-28 07:26:27,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-28 07:26:27,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-28 07:26:27,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-28 07:26:27,791 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2020-11-28 07:26:27,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:26:27,791 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 07:26:27,791 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-28 07:26:27,791 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-28 07:26:27,791 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 07:26:27,992 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-28 07:26:27,993 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-28 07:26:29,432 WARN L193 SmtUtils]: Spent 1.38 s on a formula simplification that was a NOOP. DAG size: 20 [2020-11-28 07:26:31,393 WARN L193 SmtUtils]: Spent 1.92 s on a formula simplification that was a NOOP. DAG size: 23 [2020-11-28 07:26:31,416 INFO L274 CegarLoopResult]: For program point L27(lines 27 31) no Hoare annotation was computed. [2020-11-28 07:26:31,416 INFO L274 CegarLoopResult]: For program point L60-1(lines 60 65) no Hoare annotation was computed. [2020-11-28 07:26:31,416 INFO L274 CegarLoopResult]: For program point L27-1(lines 19 107) no Hoare annotation was computed. [2020-11-28 07:26:31,417 INFO L274 CegarLoopResult]: For program point L27-2(lines 27 31) no Hoare annotation was computed. [2020-11-28 07:26:31,417 INFO L270 CegarLoopResult]: At program point L110(line 110) the Hoare annotation is: (and (= ULTIMATE.start_fmod_float_~x (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24))) (exists ((ULTIMATE.start_fmod_float_~y (_ FloatingPoint 8 24))) (= |ULTIMATE.start_fmod_float_#res| (let ((.cse0 (fp.mul roundNearestTiesToEven (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24)) ULTIMATE.start_fmod_float_~y))) (fp.div roundNearestTiesToEven .cse0 .cse0)))) (= currentRoundingMode roundNearestTiesToEven) (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|)) [2020-11-28 07:26:31,417 INFO L274 CegarLoopResult]: For program point L69(lines 69 75) no Hoare annotation was computed. [2020-11-28 07:26:31,417 INFO L274 CegarLoopResult]: For program point L36(lines 36 37) no Hoare annotation was computed. [2020-11-28 07:26:31,417 INFO L270 CegarLoopResult]: At program point L69-2(lines 67 76) the Hoare annotation is: false [2020-11-28 07:26:31,417 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-28 07:26:31,417 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-11-28 07:26:31,418 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-28 07:26:31,418 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-28 07:26:31,418 INFO L274 CegarLoopResult]: For program point L78(lines 78 80) no Hoare annotation was computed. [2020-11-28 07:26:31,418 INFO L274 CegarLoopResult]: For program point L78-2(lines 19 107) no Hoare annotation was computed. [2020-11-28 07:26:31,418 INFO L274 CegarLoopResult]: For program point L54-1(lines 19 107) no Hoare annotation was computed. [2020-11-28 07:26:31,418 INFO L274 CegarLoopResult]: For program point L38(lines 38 39) no Hoare annotation was computed. [2020-11-28 07:26:31,418 INFO L277 CegarLoopResult]: At program point L129(lines 112 130) the Hoare annotation is: true [2020-11-28 07:26:31,418 INFO L274 CegarLoopResult]: For program point L88(lines 88 105) no Hoare annotation was computed. [2020-11-28 07:26:31,418 INFO L274 CegarLoopResult]: For program point L22-1(lines 22 26) no Hoare annotation was computed. [2020-11-28 07:26:31,418 INFO L270 CegarLoopResult]: At program point L22-2(lines 22 26) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= ULTIMATE.start_fmod_float_~x (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24)))) (= currentRoundingMode roundNearestTiesToEven)) [2020-11-28 07:26:31,419 INFO L274 CegarLoopResult]: For program point L72(lines 72 73) no Hoare annotation was computed. [2020-11-28 07:26:31,419 INFO L274 CegarLoopResult]: For program point L48(lines 19 107) no Hoare annotation was computed. [2020-11-28 07:26:31,419 INFO L270 CegarLoopResult]: At program point L106(lines 19 107) the Hoare annotation is: (and (= ULTIMATE.start_fmod_float_~x (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24))) (exists ((ULTIMATE.start_fmod_float_~y (_ FloatingPoint 8 24))) (= |ULTIMATE.start_fmod_float_#res| (let ((.cse0 (fp.mul roundNearestTiesToEven (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24)) ULTIMATE.start_fmod_float_~y))) (fp.div roundNearestTiesToEven .cse0 .cse0)))) (= currentRoundingMode roundNearestTiesToEven)) [2020-11-28 07:26:31,419 INFO L274 CegarLoopResult]: For program point L40(lines 40 41) no Hoare annotation was computed. [2020-11-28 07:26:31,419 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-28 07:26:31,419 INFO L274 CegarLoopResult]: For program point L90-1(lines 90 94) no Hoare annotation was computed. [2020-11-28 07:26:31,419 INFO L270 CegarLoopResult]: At program point L90-2(lines 90 94) the Hoare annotation is: false [2020-11-28 07:26:31,419 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-28 07:26:31,419 INFO L274 CegarLoopResult]: For program point L49-2(lines 49 50) no Hoare annotation was computed. [2020-11-28 07:26:31,420 INFO L270 CegarLoopResult]: At program point L49-3(lines 49 50) the Hoare annotation is: false [2020-11-28 07:26:31,420 INFO L274 CegarLoopResult]: For program point L99-1(lines 99 103) no Hoare annotation was computed. [2020-11-28 07:26:31,420 INFO L270 CegarLoopResult]: At program point L99-2(lines 99 103) the Hoare annotation is: false [2020-11-28 07:26:31,420 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-28 07:26:31,420 INFO L274 CegarLoopResult]: For program point L99-3(lines 99 103) no Hoare annotation was computed. [2020-11-28 07:26:31,420 INFO L274 CegarLoopResult]: For program point L124(lines 124 127) no Hoare annotation was computed. [2020-11-28 07:26:31,420 INFO L274 CegarLoopResult]: For program point L42(lines 42 46) no Hoare annotation was computed. [2020-11-28 07:26:31,420 INFO L274 CegarLoopResult]: For program point L42-1(lines 19 107) no Hoare annotation was computed. [2020-11-28 07:26:31,420 INFO L274 CegarLoopResult]: For program point L67-1(lines 67 76) no Hoare annotation was computed. [2020-11-28 07:26:31,420 INFO L274 CegarLoopResult]: For program point L67-3(lines 67 76) no Hoare annotation was computed. [2020-11-28 07:26:31,421 INFO L270 CegarLoopResult]: At program point L84-2(lines 84 87) the Hoare annotation is: false [2020-11-28 07:26:31,421 INFO L274 CegarLoopResult]: For program point L84-3(lines 19 107) no Hoare annotation was computed. [2020-11-28 07:26:31,421 INFO L274 CegarLoopResult]: For program point L43-2(lines 43 44) no Hoare annotation was computed. [2020-11-28 07:26:31,421 INFO L270 CegarLoopResult]: At program point L43-3(lines 43 44) the Hoare annotation is: false [2020-11-28 07:26:31,434 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:26:31,435 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:26:31,435 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:26:31,435 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:26:31,435 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~y,QUANTIFIED] [2020-11-28 07:26:31,435 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:26:31,435 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:26:31,435 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:26:31,435 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~y,QUANTIFIED] [2020-11-28 07:26:31,435 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:26:31,437 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:26:31,437 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:26:31,437 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:26:31,440 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:26:31,440 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:26:31,440 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:26:31,440 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:26:31,441 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~y,QUANTIFIED] [2020-11-28 07:26:31,441 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:26:31,441 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:26:31,441 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:26:31,441 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~y,QUANTIFIED] [2020-11-28 07:26:31,442 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:26:31,442 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:26:31,442 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:26:31,442 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:26:31,444 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:26:31,444 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:26:31,444 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:26:31,444 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:26:31,445 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~y,QUANTIFIED] [2020-11-28 07:26:31,445 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:26:31,445 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:26:31,445 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:26:31,445 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~y,QUANTIFIED] [2020-11-28 07:26:31,446 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:26:31,446 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:26:31,446 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:26:31,446 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:26:31,447 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:26:31,447 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:26:31,447 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:26:31,448 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:26:31,448 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~y,QUANTIFIED] [2020-11-28 07:26:31,448 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:26:31,448 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:26:31,448 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:26:31,449 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~y,QUANTIFIED] [2020-11-28 07:26:31,449 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:26:31,449 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:26:31,449 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:26:31,450 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:26:31,450 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-28 07:26:31,451 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-28 07:26:31,451 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:26:31,451 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:26:31,451 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-28 07:26:31,451 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-28 07:26:31,452 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:26:31,452 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:26:31,454 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 07:26:31 BoogieIcfgContainer [2020-11-28 07:26:31,454 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 07:26:31,454 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 07:26:31,455 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 07:26:31,455 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 07:26:31,455 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:26:03" (3/4) ... [2020-11-28 07:26:31,457 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 07:26:31,468 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-28 07:26:31,468 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-11-28 07:26:31,469 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 07:26:31,469 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 07:26:31,492 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2020-11-28 07:26:31,504 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_f1dc5964-e736-46e1-addf-5c4d5d9eaf5d/bin/utaipan/witness.graphml [2020-11-28 07:26:31,505 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 07:26:31,506 INFO L168 Benchmark]: Toolchain (without parser) took 29890.17 ms. Allocated memory was 67.1 MB in the beginning and 96.5 MB in the end (delta: 29.4 MB). Free memory was 47.2 MB in the beginning and 66.8 MB in the end (delta: -19.6 MB). Peak memory consumption was 10.4 MB. Max. memory is 16.1 GB. [2020-11-28 07:26:31,507 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 67.1 MB. Free memory is still 48.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:26:31,507 INFO L168 Benchmark]: CACSL2BoogieTranslator took 293.26 ms. Allocated memory is still 67.1 MB. Free memory was 46.8 MB in the beginning and 34.5 MB in the end (delta: 12.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-28 07:26:31,508 INFO L168 Benchmark]: Boogie Procedure Inliner took 88.02 ms. Allocated memory is still 67.1 MB. Free memory was 34.3 MB in the beginning and 49.7 MB in the end (delta: -15.4 MB). Peak memory consumption was 5.6 MB. Max. memory is 16.1 GB. [2020-11-28 07:26:31,508 INFO L168 Benchmark]: Boogie Preprocessor took 43.02 ms. Allocated memory is still 67.1 MB. Free memory was 49.7 MB in the beginning and 47.9 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:26:31,509 INFO L168 Benchmark]: RCFGBuilder took 1720.44 ms. Allocated memory is still 67.1 MB. Free memory was 47.6 MB in the beginning and 42.3 MB in the end (delta: 5.3 MB). Peak memory consumption was 20.2 MB. Max. memory is 16.1 GB. [2020-11-28 07:26:31,510 INFO L168 Benchmark]: TraceAbstraction took 27688.74 ms. Allocated memory was 67.1 MB in the beginning and 96.5 MB in the end (delta: 29.4 MB). Free memory was 42.0 MB in the beginning and 68.9 MB in the end (delta: -26.9 MB). Peak memory consumption was 45.3 MB. Max. memory is 16.1 GB. [2020-11-28 07:26:31,510 INFO L168 Benchmark]: Witness Printer took 50.34 ms. Allocated memory is still 96.5 MB. Free memory was 68.9 MB in the beginning and 66.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:26:31,514 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 67.1 MB. Free memory is still 48.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 293.26 ms. Allocated memory is still 67.1 MB. Free memory was 46.8 MB in the beginning and 34.5 MB in the end (delta: 12.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 88.02 ms. Allocated memory is still 67.1 MB. Free memory was 34.3 MB in the beginning and 49.7 MB in the end (delta: -15.4 MB). Peak memory consumption was 5.6 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 43.02 ms. Allocated memory is still 67.1 MB. Free memory was 49.7 MB in the beginning and 47.9 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1720.44 ms. Allocated memory is still 67.1 MB. Free memory was 47.6 MB in the beginning and 42.3 MB in the end (delta: 5.3 MB). Peak memory consumption was 20.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 27688.74 ms. Allocated memory was 67.1 MB in the beginning and 96.5 MB in the end (delta: 29.4 MB). Free memory was 42.0 MB in the beginning and 68.9 MB in the end (delta: -26.9 MB). Peak memory consumption was 45.3 MB. Max. memory is 16.1 GB. * Witness Printer took 50.34 ms. Allocated memory is still 96.5 MB. Free memory was 68.9 MB in the beginning and 66.8 MB in the end (delta: 2.1 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 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_fmod_float_~y,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_fmod_float_~y,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 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_fmod_float_~y,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_fmod_float_~y,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 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_fmod_float_~y,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_fmod_float_~y,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 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_fmod_float_~y,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_fmod_float_~y,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 19]: Loop Invariant [2020-11-28 07:26:31,529 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:26:31,530 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:26:31,530 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:26:31,532 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:26:31,533 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~y,QUANTIFIED] [2020-11-28 07:26:31,533 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:26:31,533 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:26:31,533 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:26:31,533 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~y,QUANTIFIED] [2020-11-28 07:26:31,534 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:26:31,534 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:26:31,535 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:26:31,535 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:26:31,535 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:26:31,547 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:26:31,547 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:26:31,548 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:26:31,548 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~y,QUANTIFIED] [2020-11-28 07:26:31,548 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:26:31,548 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:26:31,548 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:26:31,549 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~y,QUANTIFIED] [2020-11-28 07:26:31,549 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:26:31,549 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:26:31,549 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:26:31,549 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE()) && (\exists ULTIMATE.start_fmod_float_~y : C_FLOAT :: \result == ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.mul~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ULTIMATE.start_fmod_float_~y), ~fp.mul~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ULTIMATE.start_fmod_float_~y)))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 112]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 99]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 84]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 43]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 90]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 110]: Loop Invariant [2020-11-28 07:26:31,551 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:26:31,551 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:26:31,551 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:26:31,552 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:26:31,552 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~y,QUANTIFIED] [2020-11-28 07:26:31,552 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:26:31,552 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:26:31,552 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:26:31,553 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~y,QUANTIFIED] [2020-11-28 07:26:31,553 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:26:31,553 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:26:31,553 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:26:31,553 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:26:31,554 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:26:31,554 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:26:31,554 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:26:31,554 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:26:31,555 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~y,QUANTIFIED] [2020-11-28 07:26:31,555 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:26:31,555 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:26:31,555 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:26:31,555 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~y,QUANTIFIED] [2020-11-28 07:26:31,555 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:26:31,556 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:26:31,556 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:26:31,556 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)), ~Pluszero~LONGDOUBLE()) && (\exists ULTIMATE.start_fmod_float_~y : C_FLOAT :: \result == ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.mul~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ULTIMATE.start_fmod_float_~y), ~fp.mul~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE()), ULTIMATE.start_fmod_float_~y)))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && 1bv32 == \result - InvariantResult [Line: 49]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 22]: Loop Invariant [2020-11-28 07:26:31,557 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-28 07:26:31,557 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-28 07:26:31,557 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:26:31,557 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:26:31,558 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-28 07:26:31,558 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-28 07:26:31,558 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:26:31,566 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~FLOAT(currentRoundingMode, ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(currentRoundingMode, 1.0)), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 43 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 24.1s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 15.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 109 SDtfs, 109 SDslu, 248 SDs, 0 SdLazy, 60 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 70 GetRequests, 48 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 1 IntricatePredicates, 1 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 20.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=43occurred 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, 5 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 10 PreInvPairs, 14 NumberOfFragments, 100 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 9 FormulaSimplificationTreeSizeReductionInter, 3.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 6.7s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 64 ConstructedInterpolants, 14 QuantifiedInterpolants, 5069 SizeOfPredicates, 19 NumberOfNonLiveVariables, 196 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...