./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0921_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_ba6e02e8-1e41-4272-af6d-1fa4ded36f7f/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_ba6e02e8-1e41-4272-af6d-1fa4ded36f7f/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_ba6e02e8-1e41-4272-af6d-1fa4ded36f7f/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_ba6e02e8-1e41-4272-af6d-1fa4ded36f7f/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0921_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_ba6e02e8-1e41-4272-af6d-1fa4ded36f7f/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_ba6e02e8-1e41-4272-af6d-1fa4ded36f7f/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 86466cf5e99320b887fae6f726f2af775c2eaef8 ......................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_ba6e02e8-1e41-4272-af6d-1fa4ded36f7f/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_ba6e02e8-1e41-4272-af6d-1fa4ded36f7f/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_ba6e02e8-1e41-4272-af6d-1fa4ded36f7f/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_ba6e02e8-1e41-4272-af6d-1fa4ded36f7f/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0921_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_ba6e02e8-1e41-4272-af6d-1fa4ded36f7f/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_ba6e02e8-1e41-4272-af6d-1fa4ded36f7f/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 86466cf5e99320b887fae6f726f2af775c2eaef8 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-09 11:16:06,963 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 11:16:06,965 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 11:16:06,973 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 11:16:06,973 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 11:16:06,974 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 11:16:06,975 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 11:16:06,976 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 11:16:06,977 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 11:16:06,978 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 11:16:06,979 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 11:16:06,979 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 11:16:06,979 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 11:16:06,980 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 11:16:06,981 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 11:16:06,981 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 11:16:06,982 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 11:16:06,983 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 11:16:06,985 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 11:16:06,986 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 11:16:06,986 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 11:16:06,987 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 11:16:06,989 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 11:16:06,989 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 11:16:06,989 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 11:16:06,990 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 11:16:06,990 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 11:16:06,991 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 11:16:06,991 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 11:16:06,992 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 11:16:06,992 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 11:16:06,993 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 11:16:06,993 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 11:16:06,993 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 11:16:06,994 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 11:16:06,994 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 11:16:06,994 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_ba6e02e8-1e41-4272-af6d-1fa4ded36f7f/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-09 11:16:07,004 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 11:16:07,004 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 11:16:07,005 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 11:16:07,005 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 11:16:07,005 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 11:16:07,005 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 11:16:07,006 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 11:16:07,006 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 11:16:07,006 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 11:16:07,006 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 11:16:07,006 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 11:16:07,006 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 11:16:07,006 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 11:16:07,007 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 11:16:07,007 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 11:16:07,007 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 11:16:07,007 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 11:16:07,007 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 11:16:07,007 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 11:16:07,007 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 11:16:07,008 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 11:16:07,008 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 11:16:07,008 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 11:16:07,008 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 11:16:07,008 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 11:16:07,008 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 11:16:07,008 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 11:16:07,008 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 11:16:07,008 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 11:16:07,009 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 11:16:07,009 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 11:16:07,009 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 11:16:07,009 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 11:16:07,009 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 11:16:07,009 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 11:16:07,009 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-09 11:16:07,009 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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/working_dir_ba6e02e8-1e41-4272-af6d-1fa4ded36f7f/bin-2019/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(__VERIFIER_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 -> 86466cf5e99320b887fae6f726f2af775c2eaef8 [2018-12-09 11:16:07,032 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 11:16:07,042 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 11:16:07,044 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 11:16:07,045 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 11:16:07,046 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 11:16:07,046 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_ba6e02e8-1e41-4272-af6d-1fa4ded36f7f/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0921_true-unreach-call.c [2018-12-09 11:16:07,087 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ba6e02e8-1e41-4272-af6d-1fa4ded36f7f/bin-2019/utaipan/data/7b053d30a/e50abe29c80843948a1b86aa3622a88b/FLAGd86eb4cd8 [2018-12-09 11:16:07,529 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 11:16:07,529 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_ba6e02e8-1e41-4272-af6d-1fa4ded36f7f/sv-benchmarks/c/float-newlib/float_req_bl_0921_true-unreach-call.c [2018-12-09 11:16:07,533 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ba6e02e8-1e41-4272-af6d-1fa4ded36f7f/bin-2019/utaipan/data/7b053d30a/e50abe29c80843948a1b86aa3622a88b/FLAGd86eb4cd8 [2018-12-09 11:16:07,541 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_ba6e02e8-1e41-4272-af6d-1fa4ded36f7f/bin-2019/utaipan/data/7b053d30a/e50abe29c80843948a1b86aa3622a88b [2018-12-09 11:16:07,543 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 11:16:07,544 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 11:16:07,545 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 11:16:07,545 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 11:16:07,547 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 11:16:07,547 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 11:16:07" (1/1) ... [2018-12-09 11:16:07,549 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47e9f86c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:16:07, skipping insertion in model container [2018-12-09 11:16:07,549 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 11:16:07" (1/1) ... [2018-12-09 11:16:07,553 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 11:16:07,565 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 11:16:07,665 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 11:16:07,668 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 11:16:07,688 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 11:16:07,731 INFO L195 MainTranslator]: Completed translation [2018-12-09 11:16:07,731 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:16:07 WrapperNode [2018-12-09 11:16:07,731 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 11:16:07,732 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 11:16:07,732 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 11:16:07,732 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 11:16:07,737 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:16:07" (1/1) ... [2018-12-09 11:16:07,743 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:16:07" (1/1) ... [2018-12-09 11:16:07,747 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 11:16:07,748 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 11:16:07,748 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 11:16:07,748 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 11:16:07,754 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:16:07" (1/1) ... [2018-12-09 11:16:07,754 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:16:07" (1/1) ... [2018-12-09 11:16:07,755 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:16:07" (1/1) ... [2018-12-09 11:16:07,755 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:16:07" (1/1) ... [2018-12-09 11:16:07,761 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:16:07" (1/1) ... [2018-12-09 11:16:07,765 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:16:07" (1/1) ... [2018-12-09 11:16:07,766 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:16:07" (1/1) ... [2018-12-09 11:16:07,767 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 11:16:07,767 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 11:16:07,768 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 11:16:07,768 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 11:16:07,768 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:16:07" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ba6e02e8-1e41-4272-af6d-1fa4ded36f7f/bin-2019/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 [2018-12-09 11:16:07,798 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 11:16:07,798 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 11:16:07,798 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-12-09 11:16:07,798 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-12-09 11:16:07,798 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-12-09 11:16:07,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-09 11:16:07,798 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 11:16:07,798 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 11:16:07,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-12-09 11:16:07,798 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 11:16:07,799 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_logf [2018-12-09 11:16:07,799 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_logf [2018-12-09 11:16:07,799 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 11:16:07,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 11:16:07,799 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-09 11:16:07,799 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 11:16:07,952 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 11:16:07,952 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-12-09 11:16:07,952 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 11:16:07 BoogieIcfgContainer [2018-12-09 11:16:07,952 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 11:16:07,953 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 11:16:07,953 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 11:16:07,954 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 11:16:07,955 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 11:16:07" (1/3) ... [2018-12-09 11:16:07,955 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16c0dcc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 11:16:07, skipping insertion in model container [2018-12-09 11:16:07,955 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:16:07" (2/3) ... [2018-12-09 11:16:07,955 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16c0dcc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 11:16:07, skipping insertion in model container [2018-12-09 11:16:07,956 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 11:16:07" (3/3) ... [2018-12-09 11:16:07,956 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0921_true-unreach-call.c [2018-12-09 11:16:07,962 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 11:16:07,966 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 11:16:07,975 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 11:16:07,992 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 11:16:07,992 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 11:16:07,993 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 11:16:07,993 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 11:16:07,993 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 11:16:07,993 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 11:16:07,993 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 11:16:07,993 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 11:16:08,002 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states. [2018-12-09 11:16:08,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-09 11:16:08,006 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 11:16:08,006 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 11:16:08,008 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 11:16:08,011 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 11:16:08,011 INFO L82 PathProgramCache]: Analyzing trace with hash -2125295103, now seen corresponding path program 1 times [2018-12-09 11:16:08,012 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 11:16:08,039 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 11:16:08,040 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 11:16:08,040 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 11:16:08,040 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 11:16:08,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 11:16:08,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 11:16:08,096 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 11:16:08,096 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 11:16:08,097 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 11:16:08,099 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-09 11:16:08,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-09 11:16:08,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 11:16:08,108 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 2 states. [2018-12-09 11:16:08,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 11:16:08,121 INFO L93 Difference]: Finished difference Result 78 states and 112 transitions. [2018-12-09 11:16:08,121 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-09 11:16:08,122 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 21 [2018-12-09 11:16:08,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 11:16:08,128 INFO L225 Difference]: With dead ends: 78 [2018-12-09 11:16:08,128 INFO L226 Difference]: Without dead ends: 39 [2018-12-09 11:16:08,130 INFO L631 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 [2018-12-09 11:16:08,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-12-09 11:16:08,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2018-12-09 11:16:08,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-12-09 11:16:08,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 49 transitions. [2018-12-09 11:16:08,152 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 49 transitions. Word has length 21 [2018-12-09 11:16:08,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 11:16:08,152 INFO L480 AbstractCegarLoop]: Abstraction has 39 states and 49 transitions. [2018-12-09 11:16:08,152 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-09 11:16:08,152 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 49 transitions. [2018-12-09 11:16:08,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-09 11:16:08,153 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 11:16:08,153 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 11:16:08,153 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 11:16:08,153 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 11:16:08,153 INFO L82 PathProgramCache]: Analyzing trace with hash 1250768616, now seen corresponding path program 1 times [2018-12-09 11:16:08,153 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 11:16:08,154 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 11:16:08,154 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 11:16:08,154 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 11:16:08,154 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 11:16:08,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 11:16:08,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 11:16:08,203 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-09 11:16:08,225 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 11:16:08 BoogieIcfgContainer [2018-12-09 11:16:08,225 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 11:16:08,225 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 11:16:08,225 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 11:16:08,225 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 11:16:08,226 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 11:16:07" (3/4) ... [2018-12-09 11:16:08,228 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-09 11:16:08,228 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 11:16:08,228 INFO L168 Benchmark]: Toolchain (without parser) took 684.94 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.8 MB). Free memory was 957.1 MB in the beginning and 1.1 GB in the end (delta: -96.5 MB). Peak memory consumption was 29.4 MB. Max. memory is 11.5 GB. [2018-12-09 11:16:08,229 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 11:16:08,230 INFO L168 Benchmark]: CACSL2BoogieTranslator took 186.69 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.8 MB). Free memory was 957.1 MB in the beginning and 1.1 GB in the end (delta: -163.4 MB). Peak memory consumption was 30.7 MB. Max. memory is 11.5 GB. [2018-12-09 11:16:08,230 INFO L168 Benchmark]: Boogie Procedure Inliner took 15.94 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2018-12-09 11:16:08,230 INFO L168 Benchmark]: Boogie Preprocessor took 19.65 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 11:16:08,231 INFO L168 Benchmark]: RCFGBuilder took 184.71 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 25.4 MB). Peak memory consumption was 25.4 MB. Max. memory is 11.5 GB. [2018-12-09 11:16:08,231 INFO L168 Benchmark]: TraceAbstraction took 272.26 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 38.1 MB). Peak memory consumption was 38.1 MB. Max. memory is 11.5 GB. [2018-12-09 11:16:08,231 INFO L168 Benchmark]: Witness Printer took 2.91 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 11:16:08,233 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 186.69 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.8 MB). Free memory was 957.1 MB in the beginning and 1.1 GB in the end (delta: -163.4 MB). Peak memory consumption was 30.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 15.94 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 19.65 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 184.71 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 25.4 MB). Peak memory consumption was 25.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 272.26 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 38.1 MB). Peak memory consumption was 38.1 MB. Max. memory is 11.5 GB. * Witness Printer took 2.91 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 124]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 111, overapproximation of someBinaryArithmeticFLOAToperation at line 44, overapproximation of bitwiseAnd at line 43. Possible FailurePath: [L24-L28] static const float ln2_hi_log = 6.9313812256e-01, ln2_lo_log = 9.0580006145e-06, two25_log = 3.355443200e+07, Lg1_log = 6.6666668653e-01, Lg2_log = 4.0000000596e-01, Lg3_log = 2.8571429849e-01, Lg4_log = 2.2222198546e-01, Lg5_log = 1.8183572590e-01, Lg6_log = 1.5313838422e-01, Lg7_log = 1.4798198640e-01; [L30] static const float zero_log = 0.0; VAL [\old(Lg1_log)=6442450960, \old(Lg2_log)=6442450962, \old(Lg3_log)=6442450945, \old(Lg4_log)=6442450948, \old(Lg5_log)=6442450950, \old(Lg6_log)=6442450959, \old(Lg7_log)=6442450958, \old(ln2_hi_log)=6442450947, \old(ln2_lo_log)=6442450954, \old(two25_log)=6442450957, \old(zero_log)=6442450956, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L119] float x = 0.0f / 0.0f; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L120] CALL, EXPR __ieee754_logf(x) VAL [\old(x)=6442450952, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L33] float hfsq, f, s, z, R, w, t1, t2, dk; [L34] __int32_t k, ix, i, j; VAL [\old(x)=6442450952, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=6442450952, zero_log=0] [L37] ieee_float_shape_type gf_u; [L38] gf_u.value = (x) [L39] EXPR gf_u.word [L39] (ix) = gf_u.word [L42] k = 0 VAL [\old(x)=6442450952, ix=-2147483648, k=0, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=6442450952, zero_log=0] [L43] COND TRUE ((ix & 0x7fffffff) == 0) [L44] return -two25_log / zero_log; VAL [\old(x)=6442450952, ix=-2147483648, k=0, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=6442450952, zero_log=0] [L120] RET, EXPR __ieee754_logf(x) VAL [__ieee754_logf(x)=6442450949, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=6442450952, zero_log=0] [L120] float res = __ieee754_logf(x); [L123] CALL, EXPR isnan_float(res) VAL [\old(x)=6442450949, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L111] return x != x; VAL [\old(x)=6442450949, \result=0, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=6442450949, zero_log=0] [L123] RET, EXPR isnan_float(res) VAL [isnan_float(res)=0, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, res=6442450949, two25_log=33554432, x=6442450952, zero_log=0] [L123] COND TRUE !isnan_float(res) [L124] __VERIFIER_error() VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, res=6442450949, two25_log=33554432, x=6442450952, zero_log=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 43 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 53 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=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 AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 43 NumberOfCodeBlocks, 43 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 400 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: 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 0.1.23-635dfa2 [2018-12-09 11:16:09,643 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 11:16:09,644 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 11:16:09,650 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 11:16:09,650 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 11:16:09,651 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 11:16:09,652 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 11:16:09,652 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 11:16:09,653 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 11:16:09,654 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 11:16:09,654 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 11:16:09,654 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 11:16:09,655 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 11:16:09,655 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 11:16:09,656 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 11:16:09,656 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 11:16:09,657 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 11:16:09,657 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 11:16:09,658 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 11:16:09,659 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 11:16:09,660 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 11:16:09,660 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 11:16:09,662 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 11:16:09,662 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 11:16:09,662 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 11:16:09,662 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 11:16:09,663 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 11:16:09,663 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 11:16:09,664 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 11:16:09,664 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 11:16:09,664 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 11:16:09,665 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 11:16:09,665 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 11:16:09,665 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 11:16:09,666 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 11:16:09,666 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 11:16:09,666 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_ba6e02e8-1e41-4272-af6d-1fa4ded36f7f/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-12-09 11:16:09,674 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 11:16:09,674 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 11:16:09,674 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 11:16:09,674 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 11:16:09,675 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 11:16:09,675 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 11:16:09,675 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 11:16:09,675 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 11:16:09,675 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 11:16:09,675 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 11:16:09,676 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 11:16:09,676 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 11:16:09,676 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 11:16:09,676 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 11:16:09,676 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 11:16:09,676 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 11:16:09,676 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 11:16:09,677 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-09 11:16:09,677 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-09 11:16:09,677 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 11:16:09,677 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 11:16:09,677 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 11:16:09,677 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 11:16:09,677 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 11:16:09,677 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 11:16:09,678 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 11:16:09,678 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 11:16:09,678 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 11:16:09,678 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 11:16:09,678 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 11:16:09,678 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 11:16:09,678 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-12-09 11:16:09,678 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 11:16:09,679 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-09 11:16:09,679 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-09 11:16:09,679 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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/working_dir_ba6e02e8-1e41-4272-af6d-1fa4ded36f7f/bin-2019/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(__VERIFIER_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 -> 86466cf5e99320b887fae6f726f2af775c2eaef8 [2018-12-09 11:16:09,697 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 11:16:09,704 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 11:16:09,706 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 11:16:09,707 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 11:16:09,708 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 11:16:09,708 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_ba6e02e8-1e41-4272-af6d-1fa4ded36f7f/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0921_true-unreach-call.c [2018-12-09 11:16:09,744 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ba6e02e8-1e41-4272-af6d-1fa4ded36f7f/bin-2019/utaipan/data/179a856fc/46e7c13094384a0c8899d27e614003ea/FLAG1084e23ef [2018-12-09 11:16:10,101 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 11:16:10,102 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_ba6e02e8-1e41-4272-af6d-1fa4ded36f7f/sv-benchmarks/c/float-newlib/float_req_bl_0921_true-unreach-call.c [2018-12-09 11:16:10,107 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ba6e02e8-1e41-4272-af6d-1fa4ded36f7f/bin-2019/utaipan/data/179a856fc/46e7c13094384a0c8899d27e614003ea/FLAG1084e23ef [2018-12-09 11:16:10,484 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_ba6e02e8-1e41-4272-af6d-1fa4ded36f7f/bin-2019/utaipan/data/179a856fc/46e7c13094384a0c8899d27e614003ea [2018-12-09 11:16:10,486 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 11:16:10,487 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 11:16:10,487 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 11:16:10,488 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 11:16:10,490 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 11:16:10,490 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 11:16:10" (1/1) ... [2018-12-09 11:16:10,492 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45734aa8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:16:10, skipping insertion in model container [2018-12-09 11:16:10,492 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 11:16:10" (1/1) ... [2018-12-09 11:16:10,496 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 11:16:10,508 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 11:16:10,613 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 11:16:10,616 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 11:16:10,641 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 11:16:10,656 INFO L195 MainTranslator]: Completed translation [2018-12-09 11:16:10,656 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:16:10 WrapperNode [2018-12-09 11:16:10,656 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 11:16:10,657 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 11:16:10,657 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 11:16:10,657 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 11:16:10,662 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:16:10" (1/1) ... [2018-12-09 11:16:10,669 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:16:10" (1/1) ... [2018-12-09 11:16:10,673 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 11:16:10,673 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 11:16:10,673 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 11:16:10,673 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 11:16:10,708 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:16:10" (1/1) ... [2018-12-09 11:16:10,708 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:16:10" (1/1) ... [2018-12-09 11:16:10,711 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:16:10" (1/1) ... [2018-12-09 11:16:10,711 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:16:10" (1/1) ... [2018-12-09 11:16:10,719 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:16:10" (1/1) ... [2018-12-09 11:16:10,722 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:16:10" (1/1) ... [2018-12-09 11:16:10,724 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:16:10" (1/1) ... [2018-12-09 11:16:10,726 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 11:16:10,726 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 11:16:10,726 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 11:16:10,726 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 11:16:10,727 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:16:10" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ba6e02e8-1e41-4272-af6d-1fa4ded36f7f/bin-2019/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 [2018-12-09 11:16:10,757 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 11:16:10,757 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 11:16:10,757 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-12-09 11:16:10,757 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-12-09 11:16:10,757 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-12-09 11:16:10,757 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 11:16:10,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 11:16:10,758 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 11:16:10,758 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_logf [2018-12-09 11:16:10,758 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_logf [2018-12-09 11:16:10,758 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-12-09 11:16:10,758 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 11:16:10,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 11:16:10,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-12-09 11:16:10,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-12-09 11:16:10,758 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 11:16:12,897 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 11:16:22,821 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 11:16:22,897 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 11:16:22,897 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-12-09 11:16:22,897 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 11:16:22 BoogieIcfgContainer [2018-12-09 11:16:22,897 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 11:16:22,898 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 11:16:22,898 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 11:16:22,899 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 11:16:22,899 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 11:16:10" (1/3) ... [2018-12-09 11:16:22,900 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2804c1c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 11:16:22, skipping insertion in model container [2018-12-09 11:16:22,900 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 11:16:10" (2/3) ... [2018-12-09 11:16:22,900 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2804c1c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 11:16:22, skipping insertion in model container [2018-12-09 11:16:22,900 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 11:16:22" (3/3) ... [2018-12-09 11:16:22,901 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0921_true-unreach-call.c [2018-12-09 11:16:22,907 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 11:16:22,911 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 11:16:22,920 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 11:16:22,937 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-09 11:16:22,938 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 11:16:22,938 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 11:16:22,938 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 11:16:22,938 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 11:16:22,938 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 11:16:22,938 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 11:16:22,938 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 11:16:22,939 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 11:16:22,948 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2018-12-09 11:16:22,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-12-09 11:16:22,952 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 11:16:22,953 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 11:16:22,954 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 11:16:22,957 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 11:16:22,957 INFO L82 PathProgramCache]: Analyzing trace with hash 1279650342, now seen corresponding path program 1 times [2018-12-09 11:16:22,960 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 11:16:22,960 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ba6e02e8-1e41-4272-af6d-1fa4ded36f7f/bin-2019/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 [2018-12-09 11:16:22,964 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 11:16:23,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 11:16:23,161 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 11:16:23,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 11:16:23,172 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 11:16:23,183 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 11:16:23,183 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 11:16:23,185 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-09 11:16:23,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-09 11:16:23,192 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 11:16:23,193 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 2 states. [2018-12-09 11:16:23,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 11:16:23,205 INFO L93 Difference]: Finished difference Result 76 states and 110 transitions. [2018-12-09 11:16:23,205 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-09 11:16:23,206 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 20 [2018-12-09 11:16:23,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 11:16:23,212 INFO L225 Difference]: With dead ends: 76 [2018-12-09 11:16:23,212 INFO L226 Difference]: Without dead ends: 38 [2018-12-09 11:16:23,214 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 11:16:23,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-12-09 11:16:23,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2018-12-09 11:16:23,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-12-09 11:16:23,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 48 transitions. [2018-12-09 11:16:23,236 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 48 transitions. Word has length 20 [2018-12-09 11:16:23,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 11:16:23,236 INFO L480 AbstractCegarLoop]: Abstraction has 38 states and 48 transitions. [2018-12-09 11:16:23,236 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-09 11:16:23,237 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 48 transitions. [2018-12-09 11:16:23,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-09 11:16:23,237 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 11:16:23,237 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 11:16:23,237 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 11:16:23,237 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 11:16:23,238 INFO L82 PathProgramCache]: Analyzing trace with hash -1035286437, now seen corresponding path program 1 times [2018-12-09 11:16:23,238 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 11:16:23,238 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ba6e02e8-1e41-4272-af6d-1fa4ded36f7f/bin-2019/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 [2018-12-09 11:16:23,241 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 11:16:23,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 11:16:23,438 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 11:16:23,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 11:16:23,495 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 11:16:23,504 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 11:16:23,504 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 11:16:23,505 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 11:16:23,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 11:16:23,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-09 11:16:23,505 INFO L87 Difference]: Start difference. First operand 38 states and 48 transitions. Second operand 6 states. [2018-12-09 11:16:26,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 11:16:26,894 INFO L93 Difference]: Finished difference Result 52 states and 61 transitions. [2018-12-09 11:16:27,016 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 11:16:27,016 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2018-12-09 11:16:27,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 11:16:27,018 INFO L225 Difference]: With dead ends: 52 [2018-12-09 11:16:27,018 INFO L226 Difference]: Without dead ends: 42 [2018-12-09 11:16:27,019 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-12-09 11:16:27,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-12-09 11:16:27,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 38. [2018-12-09 11:16:27,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-12-09 11:16:27,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 47 transitions. [2018-12-09 11:16:27,024 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 47 transitions. Word has length 21 [2018-12-09 11:16:27,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 11:16:27,025 INFO L480 AbstractCegarLoop]: Abstraction has 38 states and 47 transitions. [2018-12-09 11:16:27,025 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 11:16:27,025 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 47 transitions. [2018-12-09 11:16:27,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-09 11:16:27,026 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 11:16:27,026 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 11:16:27,026 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 11:16:27,026 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 11:16:27,026 INFO L82 PathProgramCache]: Analyzing trace with hash -576214872, now seen corresponding path program 1 times [2018-12-09 11:16:27,027 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 11:16:27,027 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ba6e02e8-1e41-4272-af6d-1fa4ded36f7f/bin-2019/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 [2018-12-09 11:16:27,030 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 11:16:27,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 11:16:27,227 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 11:16:29,060 WARN L180 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 11 [2018-12-09 11:16:29,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 11:16:29,198 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 11:16:29,207 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 11:16:29,207 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-12-09 11:16:29,207 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-09 11:16:29,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-09 11:16:29,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2018-12-09 11:16:29,208 INFO L87 Difference]: Start difference. First operand 38 states and 47 transitions. Second operand 10 states. [2018-12-09 11:16:30,410 WARN L180 SmtUtils]: Spent 536.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-12-09 11:16:44,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 11:16:44,888 INFO L93 Difference]: Finished difference Result 49 states and 58 transitions. [2018-12-09 11:16:44,889 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-09 11:16:44,889 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 22 [2018-12-09 11:16:44,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 11:16:44,890 INFO L225 Difference]: With dead ends: 49 [2018-12-09 11:16:44,890 INFO L226 Difference]: Without dead ends: 42 [2018-12-09 11:16:44,890 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2018-12-09 11:16:44,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-12-09 11:16:44,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 38. [2018-12-09 11:16:44,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-12-09 11:16:44,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 46 transitions. [2018-12-09 11:16:44,897 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 46 transitions. Word has length 22 [2018-12-09 11:16:44,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 11:16:44,897 INFO L480 AbstractCegarLoop]: Abstraction has 38 states and 46 transitions. [2018-12-09 11:16:44,897 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-09 11:16:44,897 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 46 transitions. [2018-12-09 11:16:44,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-09 11:16:44,898 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 11:16:44,898 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 11:16:44,898 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 11:16:44,898 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 11:16:44,898 INFO L82 PathProgramCache]: Analyzing trace with hash -15952265, now seen corresponding path program 1 times [2018-12-09 11:16:44,898 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 11:16:44,899 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ba6e02e8-1e41-4272-af6d-1fa4ded36f7f/bin-2019/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-12-09 11:16:44,902 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 11:16:44,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 11:16:44,951 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 11:16:45,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 11:16:45,309 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 11:16:45,316 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 11:16:45,317 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-12-09 11:16:45,317 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-09 11:16:45,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-09 11:16:45,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-12-09 11:16:45,317 INFO L87 Difference]: Start difference. First operand 38 states and 46 transitions. Second operand 9 states. [2018-12-09 11:16:45,679 WARN L180 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-12-09 11:16:57,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 11:16:57,281 INFO L93 Difference]: Finished difference Result 47 states and 55 transitions. [2018-12-09 11:16:57,282 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-09 11:16:57,282 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 23 [2018-12-09 11:16:57,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 11:16:57,282 INFO L225 Difference]: With dead ends: 47 [2018-12-09 11:16:57,282 INFO L226 Difference]: Without dead ends: 40 [2018-12-09 11:16:57,283 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-12-09 11:16:57,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2018-12-09 11:16:57,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 38. [2018-12-09 11:16:57,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-12-09 11:16:57,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 45 transitions. [2018-12-09 11:16:57,287 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 45 transitions. Word has length 23 [2018-12-09 11:16:57,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 11:16:57,287 INFO L480 AbstractCegarLoop]: Abstraction has 38 states and 45 transitions. [2018-12-09 11:16:57,287 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-09 11:16:57,287 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 45 transitions. [2018-12-09 11:16:57,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-12-09 11:16:57,288 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 11:16:57,288 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 11:16:57,288 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 11:16:57,288 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 11:16:57,288 INFO L82 PathProgramCache]: Analyzing trace with hash 1246361610, now seen corresponding path program 1 times [2018-12-09 11:16:57,288 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 11:16:57,288 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ba6e02e8-1e41-4272-af6d-1fa4ded36f7f/bin-2019/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-12-09 11:16:57,292 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 11:16:57,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 11:16:57,356 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 11:16:57,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 11:16:57,424 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 11:16:57,432 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 11:16:57,433 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 11:16:57,433 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 11:16:57,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 11:16:57,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-12-09 11:16:57,433 INFO L87 Difference]: Start difference. First operand 38 states and 45 transitions. Second operand 7 states. [2018-12-09 11:17:00,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 11:17:00,193 INFO L93 Difference]: Finished difference Result 40 states and 47 transitions. [2018-12-09 11:17:00,320 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-09 11:17:00,320 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 31 [2018-12-09 11:17:00,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 11:17:00,320 INFO L225 Difference]: With dead ends: 40 [2018-12-09 11:17:00,320 INFO L226 Difference]: Without dead ends: 0 [2018-12-09 11:17:00,321 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2018-12-09 11:17:00,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-09 11:17:00,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-09 11:17:00,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-09 11:17:00,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-09 11:17:00,321 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 31 [2018-12-09 11:17:00,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 11:17:00,322 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 11:17:00,322 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 11:17:00,322 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-09 11:17:00,322 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-09 11:17:00,325 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-09 11:17:00,502 INFO L448 ceAbstractionStarter]: For program point isnan_floatFINAL(line 111) no Hoare annotation was computed. [2018-12-09 11:17:00,503 INFO L451 ceAbstractionStarter]: At program point isnan_floatENTRY(line 111) the Hoare annotation is: true [2018-12-09 11:17:00,503 INFO L448 ceAbstractionStarter]: For program point isnan_floatEXIT(line 111) no Hoare annotation was computed. [2018-12-09 11:17:00,503 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-09 11:17:00,503 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-12-09 11:17:00,503 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-09 11:17:00,503 INFO L448 ceAbstractionStarter]: For program point L97(lines 97 101) no Hoare annotation was computed. [2018-12-09 11:17:00,503 INFO L448 ceAbstractionStarter]: For program point L52-1(lines 52 56) no Hoare annotation was computed. [2018-12-09 11:17:00,503 INFO L444 ceAbstractionStarter]: At program point L52-2(lines 52 56) the Hoare annotation is: (or (not (= ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53)) ~zero_log~0)) (and (= (fp ((_ extract 31 31) __ieee754_logf_~ix~1) ((_ extract 30 23) __ieee754_logf_~ix~1) ((_ extract 22 0) __ieee754_logf_~ix~1)) |__ieee754_logf_#in~x|) (exists ((__ieee754_logf_~ix~1 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) __ieee754_logf_~ix~1) ((_ extract 30 23) __ieee754_logf_~ix~1) ((_ extract 22 0) __ieee754_logf_~ix~1)) |__ieee754_logf_#in~x|) (bvslt __ieee754_logf_~ix~1 (_ bv2139095040 32)) (not (bvslt __ieee754_logf_~ix~1 (_ bv0 32))))))) [2018-12-09 11:17:00,503 INFO L448 ceAbstractionStarter]: For program point L69(lines 69 76) no Hoare annotation was computed. [2018-12-09 11:17:00,503 INFO L448 ceAbstractionStarter]: For program point L36-1(lines 36 40) no Hoare annotation was computed. [2018-12-09 11:17:00,503 INFO L444 ceAbstractionStarter]: At program point L36-2(lines 36 40) the Hoare annotation is: (or (not (= ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53)) ~zero_log~0)) (= __ieee754_logf_~x |__ieee754_logf_#in~x|)) [2018-12-09 11:17:00,504 INFO L448 ceAbstractionStarter]: For program point L36-3(lines 36 40) no Hoare annotation was computed. [2018-12-09 11:17:00,504 INFO L448 ceAbstractionStarter]: For program point L61-1(lines 61 65) no Hoare annotation was computed. [2018-12-09 11:17:00,504 INFO L444 ceAbstractionStarter]: At program point L61-2(lines 61 65) the Hoare annotation is: (or (not (= ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53)) ~zero_log~0)) (exists ((__ieee754_logf_~ix~1 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) __ieee754_logf_~ix~1) ((_ extract 30 23) __ieee754_logf_~ix~1) ((_ extract 22 0) __ieee754_logf_~ix~1)) |__ieee754_logf_#in~x|) (bvslt __ieee754_logf_~ix~1 (_ bv2139095040 32)) (not (bvslt __ieee754_logf_~ix~1 (_ bv0 32)))))) [2018-12-09 11:17:00,504 INFO L451 ceAbstractionStarter]: At program point __ieee754_logfENTRY(lines 32 108) the Hoare annotation is: true [2018-12-09 11:17:00,504 INFO L448 ceAbstractionStarter]: For program point L61-3(lines 61 65) no Hoare annotation was computed. [2018-12-09 11:17:00,504 INFO L448 ceAbstractionStarter]: For program point __ieee754_logfFINAL(lines 32 108) no Hoare annotation was computed. [2018-12-09 11:17:00,504 INFO L448 ceAbstractionStarter]: For program point L49(lines 49 57) no Hoare annotation was computed. [2018-12-09 11:17:00,504 INFO L448 ceAbstractionStarter]: For program point L49-1(lines 49 57) no Hoare annotation was computed. [2018-12-09 11:17:00,504 INFO L448 ceAbstractionStarter]: For program point L78(lines 78 83) no Hoare annotation was computed. [2018-12-09 11:17:00,504 INFO L448 ceAbstractionStarter]: For program point L45(lines 45 46) no Hoare annotation was computed. [2018-12-09 11:17:00,504 INFO L448 ceAbstractionStarter]: For program point L103(lines 103 106) no Hoare annotation was computed. [2018-12-09 11:17:00,504 INFO L448 ceAbstractionStarter]: For program point L70(lines 70 75) no Hoare annotation was computed. [2018-12-09 11:17:00,504 INFO L448 ceAbstractionStarter]: For program point L95(lines 95 107) no Hoare annotation was computed. [2018-12-09 11:17:00,504 INFO L448 ceAbstractionStarter]: For program point __ieee754_logfEXIT(lines 32 108) no Hoare annotation was computed. [2018-12-09 11:17:00,504 INFO L448 ceAbstractionStarter]: For program point L47(lines 47 48) no Hoare annotation was computed. [2018-12-09 11:17:00,505 INFO L448 ceAbstractionStarter]: For program point L43(lines 43 44) no Hoare annotation was computed. [2018-12-09 11:17:00,505 INFO L448 ceAbstractionStarter]: For program point L68(lines 68 84) no Hoare annotation was computed. [2018-12-09 11:17:00,505 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-09 11:17:00,505 INFO L444 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (= ~zero_log~0 ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53))) [2018-12-09 11:17:00,505 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-09 11:17:00,505 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-09 11:17:00,505 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 113 129) the Hoare annotation is: true [2018-12-09 11:17:00,505 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 113 129) no Hoare annotation was computed. [2018-12-09 11:17:00,505 INFO L448 ceAbstractionStarter]: For program point L124(line 124) no Hoare annotation was computed. [2018-12-09 11:17:00,505 INFO L444 ceAbstractionStarter]: At program point L123(line 123) the Hoare annotation is: (let ((.cse0 ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53)))) (or (not (= .cse0 ~zero_log~0)) (let ((.cse1 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (and (= main_~res~0 (fp.div roundNearestTiesToEven (fp.sub roundNearestTiesToEven .cse1 .cse1) .cse0)) (= main_~x~0 .cse1))))) [2018-12-09 11:17:00,505 INFO L448 ceAbstractionStarter]: For program point L123-1(lines 123 126) no Hoare annotation was computed. [2018-12-09 11:17:00,505 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 113 129) no Hoare annotation was computed. [2018-12-09 11:17:00,505 INFO L444 ceAbstractionStarter]: At program point L120(line 120) the Hoare annotation is: (or (not (= ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53)) ~zero_log~0)) (= main_~x~0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) [2018-12-09 11:17:00,506 INFO L448 ceAbstractionStarter]: For program point L120-1(line 120) no Hoare annotation was computed. [2018-12-09 11:17:00,506 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 124) no Hoare annotation was computed. [2018-12-09 11:17:00,510 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 11:17:00,511 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-12-09 11:17:00,511 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-12-09 11:17:00,511 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-12-09 11:17:00,511 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-12-09 11:17:00,511 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-12-09 11:17:00,514 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 11:17:00,514 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-12-09 11:17:00,514 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-12-09 11:17:00,514 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-12-09 11:17:00,514 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-12-09 11:17:00,514 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-12-09 11:17:00,515 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 11:17:00,515 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 11:17:00,515 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 11:17:00,515 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-12-09 11:17:00,516 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-12-09 11:17:00,516 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-12-09 11:17:00,516 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-12-09 11:17:00,516 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-12-09 11:17:00,516 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 11:17:00,516 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-12-09 11:17:00,517 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-12-09 11:17:00,517 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-12-09 11:17:00,517 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-12-09 11:17:00,517 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-12-09 11:17:00,518 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 11:17:00 BoogieIcfgContainer [2018-12-09 11:17:00,518 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 11:17:00,519 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 11:17:00,519 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 11:17:00,519 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 11:17:00,519 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 11:16:22" (3/4) ... [2018-12-09 11:17:00,522 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-09 11:17:00,526 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_float [2018-12-09 11:17:00,526 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-09 11:17:00,526 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_logf [2018-12-09 11:17:00,526 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-09 11:17:00,530 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 29 nodes and edges [2018-12-09 11:17:00,530 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2018-12-09 11:17:00,530 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-09 11:17:00,530 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-09 11:17:00,546 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE()) == zero_log) || x == \old(x) [2018-12-09 11:17:00,546 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE()) == zero_log) || (~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) == \old(x) && (\exists __ieee754_logf_~ix~1 : bv32 :: (~fp~LONGDOUBLE(__ieee754_logf_~ix~1[31:31], __ieee754_logf_~ix~1[30:23], __ieee754_logf_~ix~1[22:0]) == \old(x) && ~bvslt32(__ieee754_logf_~ix~1, 2139095040bv32)) && !~bvslt32(__ieee754_logf_~ix~1, 0bv32))) [2018-12-09 11:17:00,547 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE()) == zero_log) || (\exists __ieee754_logf_~ix~1 : bv32 :: (~fp~LONGDOUBLE(__ieee754_logf_~ix~1[31:31], __ieee754_logf_~ix~1[30:23], __ieee754_logf_~ix~1[22:0]) == \old(x) && ~bvslt32(__ieee754_logf_~ix~1, 2139095040bv32)) && !~bvslt32(__ieee754_logf_~ix~1, 0bv32)) [2018-12-09 11:17:00,564 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_ba6e02e8-1e41-4272-af6d-1fa4ded36f7f/bin-2019/utaipan/witness.graphml [2018-12-09 11:17:00,565 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 11:17:00,565 INFO L168 Benchmark]: Toolchain (without parser) took 50078.80 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 943.4 MB in the beginning and 876.2 MB in the end (delta: 67.2 MB). Peak memory consumption was 204.0 MB. Max. memory is 11.5 GB. [2018-12-09 11:17:00,566 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 11:17:00,566 INFO L168 Benchmark]: CACSL2BoogieTranslator took 168.99 ms. Allocated memory is still 1.0 GB. Free memory was 943.4 MB in the beginning and 927.3 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-12-09 11:17:00,566 INFO L168 Benchmark]: Boogie Procedure Inliner took 16.26 ms. Allocated memory is still 1.0 GB. Free memory is still 927.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 11:17:00,566 INFO L168 Benchmark]: Boogie Preprocessor took 52.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 927.3 MB in the beginning and 1.1 GB in the end (delta: -198.2 MB). Peak memory consumption was 13.8 MB. Max. memory is 11.5 GB. [2018-12-09 11:17:00,566 INFO L168 Benchmark]: RCFGBuilder took 12171.19 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 32.6 MB). Peak memory consumption was 32.6 MB. Max. memory is 11.5 GB. [2018-12-09 11:17:00,567 INFO L168 Benchmark]: TraceAbstraction took 37620.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 882.8 MB in the end (delta: 210.0 MB). Peak memory consumption was 210.0 MB. Max. memory is 11.5 GB. [2018-12-09 11:17:00,567 INFO L168 Benchmark]: Witness Printer took 45.81 ms. Allocated memory is still 1.2 GB. Free memory was 882.8 MB in the beginning and 876.2 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2018-12-09 11:17:00,569 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 168.99 ms. Allocated memory is still 1.0 GB. Free memory was 943.4 MB in the beginning and 927.3 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 16.26 ms. Allocated memory is still 1.0 GB. Free memory is still 927.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 52.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 927.3 MB in the beginning and 1.1 GB in the end (delta: -198.2 MB). Peak memory consumption was 13.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 12171.19 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 32.6 MB). Peak memory consumption was 32.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 37620.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 882.8 MB in the end (delta: 210.0 MB). Peak memory consumption was 210.0 MB. Max. memory is 11.5 GB. * Witness Printer took 45.81 ms. Allocated memory is still 1.2 GB. Free memory was 882.8 MB in the beginning and 876.2 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,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[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,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[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,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[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 124]: 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: 61]: Loop Invariant [2018-12-09 11:17:00,573 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 11:17:00,573 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-12-09 11:17:00,573 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-12-09 11:17:00,573 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-12-09 11:17:00,573 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-12-09 11:17:00,573 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-12-09 11:17:00,573 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 11:17:00,574 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-12-09 11:17:00,574 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-12-09 11:17:00,574 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-12-09 11:17:00,574 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-12-09 11:17:00,574 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] Derived loop invariant: !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE()) == zero_log) || (\exists __ieee754_logf_~ix~1 : bv32 :: (~fp~LONGDOUBLE(__ieee754_logf_~ix~1[31:31], __ieee754_logf_~ix~1[30:23], __ieee754_logf_~ix~1[22:0]) == \old(x) && ~bvslt32(__ieee754_logf_~ix~1, 2139095040bv32)) && !~bvslt32(__ieee754_logf_~ix~1, 0bv32)) - InvariantResult [Line: 36]: Loop Invariant [2018-12-09 11:17:00,574 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 11:17:00,574 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE()) == zero_log) || x == \old(x) - InvariantResult [Line: 52]: Loop Invariant [2018-12-09 11:17:00,574 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 11:17:00,575 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-12-09 11:17:00,575 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-12-09 11:17:00,575 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-12-09 11:17:00,575 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-12-09 11:17:00,575 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-12-09 11:17:00,575 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 11:17:00,575 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-12-09 11:17:00,575 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-12-09 11:17:00,576 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-12-09 11:17:00,576 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-12-09 11:17:00,576 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] Derived loop invariant: !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE()) == zero_log) || (~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) == \old(x) && (\exists __ieee754_logf_~ix~1 : bv32 :: (~fp~LONGDOUBLE(__ieee754_logf_~ix~1[31:31], __ieee754_logf_~ix~1[30:23], __ieee754_logf_~ix~1[22:0]) == \old(x) && ~bvslt32(__ieee754_logf_~ix~1, 2139095040bv32)) && !~bvslt32(__ieee754_logf_~ix~1, 0bv32))) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 42 locations, 1 error locations. SAFE Result, 37.5s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 34.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 196 SDtfs, 104 SDslu, 705 SDs, 0 SdLazy, 244 SolverSat, 14 SolverUnsat, 10 SolverUnknown, 0 SolverNotchecked, 31.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 128 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 4.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 10 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 15 PreInvPairs, 21 NumberOfFragments, 124 HoareAnnotationTreeSize, 15 FomulaSimplifications, 86 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 85 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 117 NumberOfCodeBlocks, 117 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 112 ConstructedInterpolants, 12 QuantifiedInterpolants, 15843 SizeOfPredicates, 15 NumberOfNonLiveVariables, 452 ConjunctsInSsa, 39 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...