./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1381_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_d580f1fd-e000-49ca-afb7-239aa7a79cd9/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_d580f1fd-e000-49ca-afb7-239aa7a79cd9/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_d580f1fd-e000-49ca-afb7-239aa7a79cd9/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_d580f1fd-e000-49ca-afb7-239aa7a79cd9/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1381_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_d580f1fd-e000-49ca-afb7-239aa7a79cd9/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_d580f1fd-e000-49ca-afb7-239aa7a79cd9/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 c91754c7d707a58127a2dc4a18babac51d557647 ................................................................................................................................................................................................................................................................................................................ 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_d580f1fd-e000-49ca-afb7-239aa7a79cd9/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_d580f1fd-e000-49ca-afb7-239aa7a79cd9/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_d580f1fd-e000-49ca-afb7-239aa7a79cd9/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_d580f1fd-e000-49ca-afb7-239aa7a79cd9/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1381_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_d580f1fd-e000-49ca-afb7-239aa7a79cd9/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_d580f1fd-e000-49ca-afb7-239aa7a79cd9/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 c91754c7d707a58127a2dc4a18babac51d557647 ..................................................................................................................................................................................................................................................................................................................................................... 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 19:22:14,247 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 19:22:14,248 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 19:22:14,254 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 19:22:14,254 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 19:22:14,255 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 19:22:14,256 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 19:22:14,257 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 19:22:14,257 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 19:22:14,258 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 19:22:14,258 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 19:22:14,259 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 19:22:14,259 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 19:22:14,260 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 19:22:14,260 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 19:22:14,261 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 19:22:14,261 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 19:22:14,262 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 19:22:14,263 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 19:22:14,264 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 19:22:14,264 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 19:22:14,265 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 19:22:14,266 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 19:22:14,266 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 19:22:14,266 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 19:22:14,267 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 19:22:14,267 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 19:22:14,267 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 19:22:14,268 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 19:22:14,268 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 19:22:14,269 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 19:22:14,269 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 19:22:14,269 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 19:22:14,269 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 19:22:14,270 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 19:22:14,270 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 19:22:14,270 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_d580f1fd-e000-49ca-afb7-239aa7a79cd9/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-09 19:22:14,277 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 19:22:14,277 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 19:22:14,278 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 19:22:14,278 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 19:22:14,278 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 19:22:14,278 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 19:22:14,278 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 19:22:14,278 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 19:22:14,279 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 19:22:14,279 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 19:22:14,279 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 19:22:14,279 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 19:22:14,279 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 19:22:14,280 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 19:22:14,280 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 19:22:14,280 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 19:22:14,280 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 19:22:14,280 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 19:22:14,280 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 19:22:14,280 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 19:22:14,280 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 19:22:14,281 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 19:22:14,281 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 19:22:14,281 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 19:22:14,281 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 19:22:14,281 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 19:22:14,281 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 19:22:14,281 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 19:22:14,281 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 19:22:14,282 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 19:22:14,282 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 19:22:14,282 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 19:22:14,282 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 19:22:14,282 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 19:22:14,282 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 19:22:14,282 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-09 19:22:14,282 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_d580f1fd-e000-49ca-afb7-239aa7a79cd9/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 -> c91754c7d707a58127a2dc4a18babac51d557647 [2018-12-09 19:22:14,299 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 19:22:14,306 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 19:22:14,308 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 19:22:14,309 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 19:22:14,309 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 19:22:14,309 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_d580f1fd-e000-49ca-afb7-239aa7a79cd9/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1381_true-unreach-call.c [2018-12-09 19:22:14,344 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_d580f1fd-e000-49ca-afb7-239aa7a79cd9/bin-2019/utaipan/data/c4bf42be7/0c1abfd9e2a24b5b935ad090f3bab266/FLAGefb2741f9 [2018-12-09 19:22:14,778 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 19:22:14,778 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_d580f1fd-e000-49ca-afb7-239aa7a79cd9/sv-benchmarks/c/float-newlib/float_req_bl_1381_true-unreach-call.c [2018-12-09 19:22:14,781 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_d580f1fd-e000-49ca-afb7-239aa7a79cd9/bin-2019/utaipan/data/c4bf42be7/0c1abfd9e2a24b5b935ad090f3bab266/FLAGefb2741f9 [2018-12-09 19:22:14,792 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_d580f1fd-e000-49ca-afb7-239aa7a79cd9/bin-2019/utaipan/data/c4bf42be7/0c1abfd9e2a24b5b935ad090f3bab266 [2018-12-09 19:22:14,794 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 19:22:14,795 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 19:22:14,796 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 19:22:14,796 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 19:22:14,798 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 19:22:14,798 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:22:14" (1/1) ... [2018-12-09 19:22:14,800 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22096c3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:22:14, skipping insertion in model container [2018-12-09 19:22:14,800 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:22:14" (1/1) ... [2018-12-09 19:22:14,805 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 19:22:14,816 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 19:22:14,905 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 19:22:14,907 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 19:22:14,919 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 19:22:14,931 INFO L195 MainTranslator]: Completed translation [2018-12-09 19:22:14,931 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:22:14 WrapperNode [2018-12-09 19:22:14,931 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 19:22:14,932 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 19:22:14,932 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 19:22:14,932 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 19:22:14,937 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:22:14" (1/1) ... [2018-12-09 19:22:14,942 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:22:14" (1/1) ... [2018-12-09 19:22:14,974 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 19:22:14,974 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 19:22:14,974 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 19:22:14,974 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 19:22:14,980 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:22:14" (1/1) ... [2018-12-09 19:22:14,980 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:22:14" (1/1) ... [2018-12-09 19:22:14,981 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:22:14" (1/1) ... [2018-12-09 19:22:14,981 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:22:14" (1/1) ... [2018-12-09 19:22:14,986 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:22:14" (1/1) ... [2018-12-09 19:22:14,989 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:22:14" (1/1) ... [2018-12-09 19:22:14,990 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:22:14" (1/1) ... [2018-12-09 19:22:14,991 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 19:22:14,992 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 19:22:14,992 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 19:22:14,992 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 19:22:14,992 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:22:14" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d580f1fd-e000-49ca-afb7-239aa7a79cd9/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 19:22:15,022 INFO L130 BoogieDeclarations]: Found specification of procedure copysign_float [2018-12-09 19:22:15,022 INFO L138 BoogieDeclarations]: Found implementation of procedure copysign_float [2018-12-09 19:22:15,022 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 19:22:15,022 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 19:22:15,022 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-12-09 19:22:15,023 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-12-09 19:22:15,023 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-12-09 19:22:15,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-09 19:22:15,023 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 19:22:15,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 19:22:15,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-12-09 19:22:15,023 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 19:22:15,023 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 19:22:15,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 19:22:15,023 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-09 19:22:15,023 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 19:22:15,146 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 19:22:15,146 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-12-09 19:22:15,146 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:22:15 BoogieIcfgContainer [2018-12-09 19:22:15,146 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 19:22:15,147 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 19:22:15,147 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 19:22:15,149 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 19:22:15,149 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 07:22:14" (1/3) ... [2018-12-09 19:22:15,149 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79268638 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:22:15, skipping insertion in model container [2018-12-09 19:22:15,149 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:22:14" (2/3) ... [2018-12-09 19:22:15,150 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79268638 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:22:15, skipping insertion in model container [2018-12-09 19:22:15,150 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:22:15" (3/3) ... [2018-12-09 19:22:15,151 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1381_true-unreach-call.c [2018-12-09 19:22:15,157 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 19:22:15,161 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 19:22:15,171 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 19:22:15,189 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 19:22:15,189 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 19:22:15,189 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 19:22:15,189 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 19:22:15,189 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 19:22:15,189 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 19:22:15,189 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 19:22:15,190 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 19:22:15,200 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2018-12-09 19:22:15,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-09 19:22:15,203 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:22:15,204 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 19:22:15,207 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:22:15,210 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:22:15,211 INFO L82 PathProgramCache]: Analyzing trace with hash 961824128, now seen corresponding path program 1 times [2018-12-09 19:22:15,212 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:22:15,240 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:22:15,240 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:22:15,240 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:22:15,240 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:22:15,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:22:15,283 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 19:22:15,284 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:22:15,284 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 19:22:15,284 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:22:15,287 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-09 19:22:15,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-09 19:22:15,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 19:22:15,296 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 2 states. [2018-12-09 19:22:15,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:22:15,307 INFO L93 Difference]: Finished difference Result 52 states and 64 transitions. [2018-12-09 19:22:15,307 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-09 19:22:15,308 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2018-12-09 19:22:15,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:22:15,313 INFO L225 Difference]: With dead ends: 52 [2018-12-09 19:22:15,313 INFO L226 Difference]: Without dead ends: 26 [2018-12-09 19:22:15,315 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 19:22:15,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2018-12-09 19:22:15,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2018-12-09 19:22:15,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2018-12-09 19:22:15,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 25 transitions. [2018-12-09 19:22:15,337 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 25 transitions. Word has length 22 [2018-12-09 19:22:15,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:22:15,337 INFO L480 AbstractCegarLoop]: Abstraction has 26 states and 25 transitions. [2018-12-09 19:22:15,337 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-09 19:22:15,337 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 25 transitions. [2018-12-09 19:22:15,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-12-09 19:22:15,338 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:22:15,338 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] [2018-12-09 19:22:15,338 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:22:15,338 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:22:15,338 INFO L82 PathProgramCache]: Analyzing trace with hash 1472779928, now seen corresponding path program 1 times [2018-12-09 19:22:15,339 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:22:15,339 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:22:15,339 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:22:15,339 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:22:15,340 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:22:15,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 19:22:15,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 19:22:15,390 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-09 19:22:15,407 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 07:22:15 BoogieIcfgContainer [2018-12-09 19:22:15,407 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 19:22:15,407 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 19:22:15,407 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 19:22:15,408 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 19:22:15,408 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:22:15" (3/4) ... [2018-12-09 19:22:15,410 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-09 19:22:15,410 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 19:22:15,411 INFO L168 Benchmark]: Toolchain (without parser) took 616.20 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 957.8 MB in the beginning and 1.1 GB in the end (delta: -124.3 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. [2018-12-09 19:22:15,412 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 19:22:15,412 INFO L168 Benchmark]: CACSL2BoogieTranslator took 135.95 ms. Allocated memory is still 1.0 GB. Free memory was 957.8 MB in the beginning and 947.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-09 19:22:15,413 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.44 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -193.1 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB. [2018-12-09 19:22:15,413 INFO L168 Benchmark]: Boogie Preprocessor took 17.02 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-12-09 19:22:15,413 INFO L168 Benchmark]: RCFGBuilder took 154.70 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: 17.9 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. [2018-12-09 19:22:15,414 INFO L168 Benchmark]: TraceAbstraction took 260.52 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: 36.9 MB). Peak memory consumption was 36.9 MB. Max. memory is 11.5 GB. [2018-12-09 19:22:15,414 INFO L168 Benchmark]: Witness Printer took 2.93 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 19:22:15,416 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 135.95 ms. Allocated memory is still 1.0 GB. Free memory was 957.8 MB in the beginning and 947.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 42.44 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 947.0 MB in the beginning and 1.1 GB in the end (delta: -193.1 MB). Peak memory consumption was 12.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 17.02 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: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 154.70 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: 17.9 MB). Peak memory consumption was 17.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 260.52 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: 36.9 MB). Peak memory consumption was 36.9 MB. Max. memory is 11.5 GB. * Witness Printer took 2.93 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: 49]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 33, overapproximation of bitwiseOr at line 26, overapproximation of someBinaryArithmeticFLOAToperation at line 43. Possible FailurePath: [L43] float x = 0.0f / 0.0f; [L44] float y = __VERIFIER_nondet_float(); [L45] CALL, EXPR copysign_float(x, y) VAL [\old(x)=15, \old(y)=14] [L13] __uint32_t ix, iy; VAL [\old(x)=15, \old(y)=14, x=15, y=14] [L15] ieee_float_shape_type gf_u; [L16] gf_u.value = (x) [L17] EXPR gf_u.word [L17] (ix) = gf_u.word [L20] ieee_float_shape_type gf_u; [L21] gf_u.value = (y) [L22] EXPR gf_u.word [L22] (iy) = gf_u.word [L25] ieee_float_shape_type sf_u; [L26] sf_u.word = ((ix & 0x7fffffff) | (iy & 0x80000000)) [L27] EXPR sf_u.value [L27] (x) = sf_u.value [L29] return x; VAL [\old(x)=15, \old(y)=14, \result=10, ix=16, iy=20, x=10, y=14] [L45] RET, EXPR copysign_float(x, y) VAL [copysign_float(x, y)=10, x=15, y=14] [L45] float res = copysign_float(x, y); [L48] CALL, EXPR isnan_float(res) VAL [\old(x)=10] [L33] return x != x; VAL [\old(x)=10, \result=0, x=10] [L48] RET, EXPR isnan_float(res) VAL [isnan_float(res)=0, res=10, x=15, y=14] [L48] COND TRUE !isnan_float(res) [L49] __VERIFIER_error() VAL [res=10, x=15, y=14] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 30 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 29 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s 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, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 441 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 19:22:16,724 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 19:22:16,725 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 19:22:16,731 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 19:22:16,731 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 19:22:16,731 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 19:22:16,732 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 19:22:16,733 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 19:22:16,733 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 19:22:16,734 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 19:22:16,734 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 19:22:16,734 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 19:22:16,735 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 19:22:16,735 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 19:22:16,736 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 19:22:16,736 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 19:22:16,737 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 19:22:16,737 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 19:22:16,738 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 19:22:16,739 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 19:22:16,740 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 19:22:16,740 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 19:22:16,741 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 19:22:16,741 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 19:22:16,741 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 19:22:16,742 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 19:22:16,742 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 19:22:16,743 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 19:22:16,743 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 19:22:16,744 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 19:22:16,744 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 19:22:16,744 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 19:22:16,744 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 19:22:16,744 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 19:22:16,745 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 19:22:16,745 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 19:22:16,745 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_d580f1fd-e000-49ca-afb7-239aa7a79cd9/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-12-09 19:22:16,752 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 19:22:16,752 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 19:22:16,753 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 19:22:16,753 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 19:22:16,753 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 19:22:16,753 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 19:22:16,753 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 19:22:16,753 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 19:22:16,753 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 19:22:16,754 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 19:22:16,754 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 19:22:16,754 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 19:22:16,754 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 19:22:16,754 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 19:22:16,754 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 19:22:16,754 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 19:22:16,754 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 19:22:16,755 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-09 19:22:16,755 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-09 19:22:16,755 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 19:22:16,755 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 19:22:16,755 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 19:22:16,755 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 19:22:16,755 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 19:22:16,755 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 19:22:16,755 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 19:22:16,755 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 19:22:16,755 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 19:22:16,756 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 19:22:16,756 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 19:22:16,756 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 19:22:16,756 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-12-09 19:22:16,756 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 19:22:16,756 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-09 19:22:16,756 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-09 19:22:16,756 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_d580f1fd-e000-49ca-afb7-239aa7a79cd9/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 -> c91754c7d707a58127a2dc4a18babac51d557647 [2018-12-09 19:22:16,774 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 19:22:16,784 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 19:22:16,786 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 19:22:16,787 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 19:22:16,788 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 19:22:16,788 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_d580f1fd-e000-49ca-afb7-239aa7a79cd9/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_1381_true-unreach-call.c [2018-12-09 19:22:16,835 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_d580f1fd-e000-49ca-afb7-239aa7a79cd9/bin-2019/utaipan/data/fff08c593/309f80588acb4681afc31c6b01411142/FLAG7c8bf0ac6 [2018-12-09 19:22:17,231 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 19:22:17,231 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_d580f1fd-e000-49ca-afb7-239aa7a79cd9/sv-benchmarks/c/float-newlib/float_req_bl_1381_true-unreach-call.c [2018-12-09 19:22:17,235 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_d580f1fd-e000-49ca-afb7-239aa7a79cd9/bin-2019/utaipan/data/fff08c593/309f80588acb4681afc31c6b01411142/FLAG7c8bf0ac6 [2018-12-09 19:22:17,243 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_d580f1fd-e000-49ca-afb7-239aa7a79cd9/bin-2019/utaipan/data/fff08c593/309f80588acb4681afc31c6b01411142 [2018-12-09 19:22:17,244 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 19:22:17,245 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 19:22:17,246 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 19:22:17,246 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 19:22:17,248 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 19:22:17,248 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:22:17" (1/1) ... [2018-12-09 19:22:17,250 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f1e8136 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:22:17, skipping insertion in model container [2018-12-09 19:22:17,250 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:22:17" (1/1) ... [2018-12-09 19:22:17,254 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 19:22:17,264 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 19:22:17,355 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 19:22:17,358 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 19:22:17,372 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 19:22:17,386 INFO L195 MainTranslator]: Completed translation [2018-12-09 19:22:17,386 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:22:17 WrapperNode [2018-12-09 19:22:17,386 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 19:22:17,387 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 19:22:17,387 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 19:22:17,387 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 19:22:17,392 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:22:17" (1/1) ... [2018-12-09 19:22:17,398 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:22:17" (1/1) ... [2018-12-09 19:22:17,402 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 19:22:17,402 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 19:22:17,403 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 19:22:17,403 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 19:22:17,408 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:22:17" (1/1) ... [2018-12-09 19:22:17,408 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:22:17" (1/1) ... [2018-12-09 19:22:17,410 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:22:17" (1/1) ... [2018-12-09 19:22:17,410 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:22:17" (1/1) ... [2018-12-09 19:22:17,416 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:22:17" (1/1) ... [2018-12-09 19:22:17,419 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:22:17" (1/1) ... [2018-12-09 19:22:17,451 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:22:17" (1/1) ... [2018-12-09 19:22:17,453 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 19:22:17,454 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 19:22:17,454 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 19:22:17,454 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 19:22:17,455 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:22:17" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d580f1fd-e000-49ca-afb7-239aa7a79cd9/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 19:22:17,485 INFO L130 BoogieDeclarations]: Found specification of procedure copysign_float [2018-12-09 19:22:17,485 INFO L138 BoogieDeclarations]: Found implementation of procedure copysign_float [2018-12-09 19:22:17,485 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 19:22:17,485 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 19:22:17,486 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-12-09 19:22:17,486 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-12-09 19:22:17,486 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-12-09 19:22:17,486 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 19:22:17,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 19:22:17,486 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 19:22:17,486 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-12-09 19:22:17,486 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 19:22:17,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 19:22:17,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-12-09 19:22:17,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-12-09 19:22:17,486 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 19:22:17,589 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:22:17,602 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:22:17,626 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 19:22:17,626 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-12-09 19:22:17,626 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:22:17 BoogieIcfgContainer [2018-12-09 19:22:17,626 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 19:22:17,627 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 19:22:17,627 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 19:22:17,629 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 19:22:17,629 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 07:22:17" (1/3) ... [2018-12-09 19:22:17,629 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39c8bad2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:22:17, skipping insertion in model container [2018-12-09 19:22:17,629 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:22:17" (2/3) ... [2018-12-09 19:22:17,630 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39c8bad2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:22:17, skipping insertion in model container [2018-12-09 19:22:17,630 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:22:17" (3/3) ... [2018-12-09 19:22:17,631 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1381_true-unreach-call.c [2018-12-09 19:22:17,637 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 19:22:17,641 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 19:22:17,650 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 19:22:17,668 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-09 19:22:17,668 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 19:22:17,668 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 19:22:17,668 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 19:22:17,668 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 19:22:17,669 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 19:22:17,669 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 19:22:17,669 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 19:22:17,669 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 19:22:17,678 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2018-12-09 19:22:17,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-09 19:22:17,681 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:22:17,682 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 19:22:17,683 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:22:17,686 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:22:17,686 INFO L82 PathProgramCache]: Analyzing trace with hash 1449244753, now seen corresponding path program 1 times [2018-12-09 19:22:17,688 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 19:22:17,689 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d580f1fd-e000-49ca-afb7-239aa7a79cd9/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 19:22:17,693 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:22:17,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:22:17,734 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 19:22:17,747 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 19:22:17,747 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 19:22:17,754 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:22:17,755 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 19:22:17,757 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-09 19:22:17,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-09 19:22:17,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 19:22:17,766 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 2 states. [2018-12-09 19:22:17,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:22:17,780 INFO L93 Difference]: Finished difference Result 50 states and 62 transitions. [2018-12-09 19:22:17,781 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-09 19:22:17,782 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 21 [2018-12-09 19:22:17,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:22:17,788 INFO L225 Difference]: With dead ends: 50 [2018-12-09 19:22:17,788 INFO L226 Difference]: Without dead ends: 25 [2018-12-09 19:22:17,791 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 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 19:22:17,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2018-12-09 19:22:17,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2018-12-09 19:22:17,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-12-09 19:22:17,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 24 transitions. [2018-12-09 19:22:17,818 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 24 transitions. Word has length 21 [2018-12-09 19:22:17,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:22:17,818 INFO L480 AbstractCegarLoop]: Abstraction has 25 states and 24 transitions. [2018-12-09 19:22:17,818 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-09 19:22:17,818 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 24 transitions. [2018-12-09 19:22:17,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-09 19:22:17,819 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:22:17,819 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] [2018-12-09 19:22:17,819 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:22:17,820 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:22:17,820 INFO L82 PathProgramCache]: Analyzing trace with hash -739473603, now seen corresponding path program 1 times [2018-12-09 19:22:17,820 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 19:22:17,820 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d580f1fd-e000-49ca-afb7-239aa7a79cd9/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 19:22:17,824 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:22:17,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:22:17,872 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 19:22:18,103 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 19:22:18,103 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 19:22:18,110 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:22:18,110 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-12-09 19:22:18,111 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-12-09 19:22:18,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-12-09 19:22:18,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2018-12-09 19:22:18,112 INFO L87 Difference]: Start difference. First operand 25 states and 24 transitions. Second operand 11 states. [2018-12-09 19:22:18,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:22:18,567 INFO L93 Difference]: Finished difference Result 25 states and 24 transitions. [2018-12-09 19:22:18,567 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-12-09 19:22:18,567 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 24 [2018-12-09 19:22:18,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:22:18,567 INFO L225 Difference]: With dead ends: 25 [2018-12-09 19:22:18,567 INFO L226 Difference]: Without dead ends: 0 [2018-12-09 19:22:18,568 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2018-12-09 19:22:18,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-09 19:22:18,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-09 19:22:18,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-09 19:22:18,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-09 19:22:18,569 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 24 [2018-12-09 19:22:18,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:22:18,569 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 19:22:18,569 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-12-09 19:22:18,569 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-09 19:22:18,569 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-09 19:22:18,572 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-09 19:22:18,612 INFO L448 ceAbstractionStarter]: For program point isnan_floatFINAL(line 33) no Hoare annotation was computed. [2018-12-09 19:22:18,612 INFO L451 ceAbstractionStarter]: At program point isnan_floatENTRY(line 33) the Hoare annotation is: true [2018-12-09 19:22:18,612 INFO L448 ceAbstractionStarter]: For program point isnan_floatEXIT(line 33) no Hoare annotation was computed. [2018-12-09 19:22:18,612 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-09 19:22:18,612 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-12-09 19:22:18,612 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-09 19:22:18,612 INFO L448 ceAbstractionStarter]: For program point copysign_floatEXIT(lines 12 30) no Hoare annotation was computed. [2018-12-09 19:22:18,612 INFO L448 ceAbstractionStarter]: For program point L19(lines 19 23) no Hoare annotation was computed. [2018-12-09 19:22:18,612 INFO L448 ceAbstractionStarter]: For program point L19-1(lines 12 30) no Hoare annotation was computed. [2018-12-09 19:22:18,613 INFO L448 ceAbstractionStarter]: For program point L24(lines 24 28) no Hoare annotation was computed. [2018-12-09 19:22:18,613 INFO L448 ceAbstractionStarter]: For program point L24-1(lines 12 30) no Hoare annotation was computed. [2018-12-09 19:22:18,613 INFO L448 ceAbstractionStarter]: For program point L24-2(lines 24 28) no Hoare annotation was computed. [2018-12-09 19:22:18,613 INFO L451 ceAbstractionStarter]: At program point copysign_floatENTRY(lines 12 30) the Hoare annotation is: true [2018-12-09 19:22:18,613 INFO L448 ceAbstractionStarter]: For program point L14-1(lines 14 18) no Hoare annotation was computed. [2018-12-09 19:22:18,613 INFO L444 ceAbstractionStarter]: At program point L14-2(lines 14 18) the Hoare annotation is: (= |copysign_float_#in~x| copysign_float_~x) [2018-12-09 19:22:18,613 INFO L448 ceAbstractionStarter]: For program point copysign_floatFINAL(lines 12 30) no Hoare annotation was computed. [2018-12-09 19:22:18,613 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-09 19:22:18,613 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-12-09 19:22:18,613 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-09 19:22:18,613 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-09 19:22:18,613 INFO L448 ceAbstractionStarter]: For program point L49(line 49) no Hoare annotation was computed. [2018-12-09 19:22:18,614 INFO L444 ceAbstractionStarter]: At program point L48(line 48) the Hoare annotation is: (and (exists ((copysign_float_~iy~0 (_ BitVec 32)) (copysign_float_~ix~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) copysign_float_~ix~0) ((_ extract 30 23) copysign_float_~ix~0) ((_ extract 22 0) copysign_float_~ix~0)) (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24))) (= main_~res~0 (let ((.cse0 (bvor (bvand (_ bv2147483647 32) copysign_float_~ix~0) (bvand (_ bv2147483648 32) copysign_float_~iy~0)))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0)))))) (= main_~x~0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) [2018-12-09 19:22:18,614 INFO L448 ceAbstractionStarter]: For program point L48-1(lines 48 51) no Hoare annotation was computed. [2018-12-09 19:22:18,614 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 35 54) the Hoare annotation is: true [2018-12-09 19:22:18,614 INFO L444 ceAbstractionStarter]: At program point L45(line 45) the Hoare annotation is: (= main_~x~0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24))) [2018-12-09 19:22:18,614 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 35 54) no Hoare annotation was computed. [2018-12-09 19:22:18,614 INFO L448 ceAbstractionStarter]: For program point L45-1(line 45) no Hoare annotation was computed. [2018-12-09 19:22:18,614 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 49) no Hoare annotation was computed. [2018-12-09 19:22:18,614 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 35 54) no Hoare annotation was computed. [2018-12-09 19:22:18,621 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 07:22:18 BoogieIcfgContainer [2018-12-09 19:22:18,621 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 19:22:18,622 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 19:22:18,622 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 19:22:18,622 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 19:22:18,622 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:22:17" (3/4) ... [2018-12-09 19:22:18,624 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-09 19:22:18,628 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_float [2018-12-09 19:22:18,628 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-09 19:22:18,628 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure copysign_float [2018-12-09 19:22:18,629 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-09 19:22:18,631 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2018-12-09 19:22:18,631 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-12-09 19:22:18,632 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-09 19:22:18,648 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-12-09 19:22:18,656 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_d580f1fd-e000-49ca-afb7-239aa7a79cd9/bin-2019/utaipan/witness.graphml [2018-12-09 19:22:18,656 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 19:22:18,656 INFO L168 Benchmark]: Toolchain (without parser) took 1411.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 944.7 MB in the beginning and 1.0 GB in the end (delta: -70.8 MB). Peak memory consumption was 73.3 MB. Max. memory is 11.5 GB. [2018-12-09 19:22:18,657 INFO L168 Benchmark]: CDTParser took 0.16 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 19:22:18,657 INFO L168 Benchmark]: CACSL2BoogieTranslator took 140.84 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 932.6 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2018-12-09 19:22:18,658 INFO L168 Benchmark]: Boogie Procedure Inliner took 15.43 ms. Allocated memory is still 1.0 GB. Free memory was 932.6 MB in the beginning and 927.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-09 19:22:18,658 INFO L168 Benchmark]: Boogie Preprocessor took 51.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 927.3 MB in the beginning and 1.1 GB in the end (delta: -211.9 MB). Peak memory consumption was 14.0 MB. Max. memory is 11.5 GB. [2018-12-09 19:22:18,658 INFO L168 Benchmark]: RCFGBuilder took 172.60 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: 24.6 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. [2018-12-09 19:22:18,659 INFO L168 Benchmark]: TraceAbstraction took 994.72 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 99.0 MB). Peak memory consumption was 99.0 MB. Max. memory is 11.5 GB. [2018-12-09 19:22:18,659 INFO L168 Benchmark]: Witness Printer took 34.12 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 19:22:18,660 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 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 140.84 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 932.6 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 15.43 ms. Allocated memory is still 1.0 GB. Free memory was 932.6 MB in the beginning and 927.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 51.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 927.3 MB in the beginning and 1.1 GB in the end (delta: -211.9 MB). Peak memory consumption was 14.0 MB. Max. memory is 11.5 GB. * RCFGBuilder took 172.60 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: 24.6 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 994.72 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 99.0 MB). Peak memory consumption was 99.0 MB. Max. memory is 11.5 GB. * Witness Printer took 34.12 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 49]: 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: 14]: Loop Invariant Derived loop invariant: \old(x) == x - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 29 locations, 1 error locations. SAFE Result, 0.9s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 44 SDtfs, 9 SDslu, 118 SDs, 0 SdLazy, 52 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 49 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 10 PreInvPairs, 12 NumberOfFragments, 63 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 45 NumberOfCodeBlocks, 45 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 43 ConstructedInterpolants, 6 QuantifiedInterpolants, 7944 SizeOfPredicates, 7 NumberOfNonLiveVariables, 122 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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...