./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0970b_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_bdff6641-d43c-4a2a-a7e3-45f2c7157e0a/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_bdff6641-d43c-4a2a-a7e3-45f2c7157e0a/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_bdff6641-d43c-4a2a-a7e3-45f2c7157e0a/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_bdff6641-d43c-4a2a-a7e3-45f2c7157e0a/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0970b_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_bdff6641-d43c-4a2a-a7e3-45f2c7157e0a/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_bdff6641-d43c-4a2a-a7e3-45f2c7157e0a/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 43a504f2a78cd97f2f59239768b095c018a8cdcb .................................................................................................................................................................................................................................................................................................................................... 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_bdff6641-d43c-4a2a-a7e3-45f2c7157e0a/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_bdff6641-d43c-4a2a-a7e3-45f2c7157e0a/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_bdff6641-d43c-4a2a-a7e3-45f2c7157e0a/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_bdff6641-d43c-4a2a-a7e3-45f2c7157e0a/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0970b_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_bdff6641-d43c-4a2a-a7e3-45f2c7157e0a/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_bdff6641-d43c-4a2a-a7e3-45f2c7157e0a/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 43a504f2a78cd97f2f59239768b095c018a8cdcb ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 13:25:39,168 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 13:25:39,169 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 13:25:39,177 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 13:25:39,177 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 13:25:39,177 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 13:25:39,178 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 13:25:39,179 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 13:25:39,180 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 13:25:39,181 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 13:25:39,182 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 13:25:39,182 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 13:25:39,183 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 13:25:39,183 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 13:25:39,185 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 13:25:39,185 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 13:25:39,186 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 13:25:39,187 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 13:25:39,188 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 13:25:39,189 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 13:25:39,191 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 13:25:39,192 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 13:25:39,193 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 13:25:39,193 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 13:25:39,193 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 13:25:39,195 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 13:25:39,195 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 13:25:39,196 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 13:25:39,196 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 13:25:39,197 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 13:25:39,197 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 13:25:39,198 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 13:25:39,198 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 13:25:39,199 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 13:25:39,199 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 13:25:39,200 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 13:25:39,200 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_bdff6641-d43c-4a2a-a7e3-45f2c7157e0a/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 13:25:39,208 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 13:25:39,209 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 13:25:39,209 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 13:25:39,209 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 13:25:39,209 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 13:25:39,209 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 13:25:39,210 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 13:25:39,210 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 13:25:39,210 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 13:25:39,210 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 13:25:39,210 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 13:25:39,210 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 13:25:39,210 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 13:25:39,211 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 13:25:39,211 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 13:25:39,211 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 13:25:39,211 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 13:25:39,211 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 13:25:39,211 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 13:25:39,211 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 13:25:39,212 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 13:25:39,212 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 13:25:39,212 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 13:25:39,212 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 13:25:39,212 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 13:25:39,212 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 13:25:39,212 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 13:25:39,212 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 13:25:39,212 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 13:25:39,212 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 13:25:39,213 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 13:25:39,213 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 13:25:39,213 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 13:25:39,213 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 13:25:39,213 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 13:25:39,213 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 13:25:39,213 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 13:25:39,213 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_bdff6641-d43c-4a2a-a7e3-45f2c7157e0a/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 -> 43a504f2a78cd97f2f59239768b095c018a8cdcb [2018-11-18 13:25:39,239 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 13:25:39,248 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 13:25:39,250 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 13:25:39,251 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 13:25:39,251 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 13:25:39,252 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_bdff6641-d43c-4a2a-a7e3-45f2c7157e0a/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0970b_true-unreach-call.c [2018-11-18 13:25:39,296 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_bdff6641-d43c-4a2a-a7e3-45f2c7157e0a/bin-2019/utaipan/data/f1946e1b3/bf6e1640e6274b4ca457779b8af54633/FLAG6b6369211 [2018-11-18 13:25:39,631 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 13:25:39,632 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_bdff6641-d43c-4a2a-a7e3-45f2c7157e0a/sv-benchmarks/c/float-newlib/float_req_bl_0970b_true-unreach-call.c [2018-11-18 13:25:39,636 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_bdff6641-d43c-4a2a-a7e3-45f2c7157e0a/bin-2019/utaipan/data/f1946e1b3/bf6e1640e6274b4ca457779b8af54633/FLAG6b6369211 [2018-11-18 13:25:40,054 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_bdff6641-d43c-4a2a-a7e3-45f2c7157e0a/bin-2019/utaipan/data/f1946e1b3/bf6e1640e6274b4ca457779b8af54633 [2018-11-18 13:25:40,056 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 13:25:40,058 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 13:25:40,058 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 13:25:40,058 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 13:25:40,062 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 13:25:40,062 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 01:25:40" (1/1) ... [2018-11-18 13:25:40,064 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@717d7144 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:25:40, skipping insertion in model container [2018-11-18 13:25:40,064 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 01:25:40" (1/1) ... [2018-11-18 13:25:40,071 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 13:25:40,086 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 13:25:40,215 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 13:25:40,217 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 13:25:40,241 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 13:25:40,257 INFO L195 MainTranslator]: Completed translation [2018-11-18 13:25:40,257 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:25:40 WrapperNode [2018-11-18 13:25:40,257 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 13:25:40,258 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 13:25:40,258 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 13:25:40,258 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 13:25:40,265 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:25:40" (1/1) ... [2018-11-18 13:25:40,273 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:25:40" (1/1) ... [2018-11-18 13:25:40,277 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 13:25:40,278 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 13:25:40,278 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 13:25:40,278 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 13:25:40,323 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:25:40" (1/1) ... [2018-11-18 13:25:40,324 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:25:40" (1/1) ... [2018-11-18 13:25:40,326 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:25:40" (1/1) ... [2018-11-18 13:25:40,327 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:25:40" (1/1) ... [2018-11-18 13:25:40,339 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:25:40" (1/1) ... [2018-11-18 13:25:40,345 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:25:40" (1/1) ... [2018-11-18 13:25:40,347 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:25:40" (1/1) ... [2018-11-18 13:25:40,349 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 13:25:40,350 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 13:25:40,350 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 13:25:40,350 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 13:25:40,351 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:25:40" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bdff6641-d43c-4a2a-a7e3-45f2c7157e0a/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 [2018-11-18 13:25:40,397 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 13:25:40,398 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 13:25:40,398 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-11-18 13:25:40,398 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-11-18 13:25:40,398 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-18 13:25:40,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 13:25:40,398 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 13:25:40,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 13:25:40,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-18 13:25:40,399 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 13:25:40,399 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_logf [2018-11-18 13:25:40,399 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_logf [2018-11-18 13:25:40,399 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_log10f [2018-11-18 13:25:40,399 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_log10f [2018-11-18 13:25:40,399 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 13:25:40,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 13:25:40,399 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 13:25:40,399 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 13:25:40,661 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 13:25:40,662 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:25:40 BoogieIcfgContainer [2018-11-18 13:25:40,662 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 13:25:40,663 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 13:25:40,663 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 13:25:40,665 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 13:25:40,665 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 01:25:40" (1/3) ... [2018-11-18 13:25:40,666 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1741b8fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 01:25:40, skipping insertion in model container [2018-11-18 13:25:40,666 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:25:40" (2/3) ... [2018-11-18 13:25:40,666 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1741b8fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 01:25:40, skipping insertion in model container [2018-11-18 13:25:40,666 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:25:40" (3/3) ... [2018-11-18 13:25:40,668 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0970b_true-unreach-call.c [2018-11-18 13:25:40,674 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 13:25:40,679 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 13:25:40,689 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 13:25:40,712 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 13:25:40,713 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 13:25:40,713 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 13:25:40,713 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 13:25:40,713 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 13:25:40,713 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 13:25:40,713 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 13:25:40,713 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 13:25:40,727 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states. [2018-11-18 13:25:40,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-18 13:25:40,732 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:25:40,733 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:25:40,735 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:25:40,739 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:25:40,739 INFO L82 PathProgramCache]: Analyzing trace with hash -1876582166, now seen corresponding path program 1 times [2018-11-18 13:25:40,740 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 13:25:40,770 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:25:40,770 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:25:40,770 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:25:40,770 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 13:25:40,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:25:40,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:25:40,850 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 13:25:40,850 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 13:25:40,850 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 13:25:40,853 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 13:25:40,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 13:25:40,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 13:25:40,863 INFO L87 Difference]: Start difference. First operand 60 states. Second operand 2 states. [2018-11-18 13:25:40,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:25:40,882 INFO L93 Difference]: Finished difference Result 112 states and 167 transitions. [2018-11-18 13:25:40,882 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 13:25:40,883 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 21 [2018-11-18 13:25:40,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:25:40,890 INFO L225 Difference]: With dead ends: 112 [2018-11-18 13:25:40,890 INFO L226 Difference]: Without dead ends: 56 [2018-11-18 13:25:40,892 INFO L604 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 [2018-11-18 13:25:40,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2018-11-18 13:25:40,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2018-11-18 13:25:40,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2018-11-18 13:25:40,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 70 transitions. [2018-11-18 13:25:40,919 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 70 transitions. Word has length 21 [2018-11-18 13:25:40,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:25:40,920 INFO L480 AbstractCegarLoop]: Abstraction has 56 states and 70 transitions. [2018-11-18 13:25:40,920 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 13:25:40,920 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 70 transitions. [2018-11-18 13:25:40,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-18 13:25:40,921 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:25:40,921 INFO L375 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] [2018-11-18 13:25:40,921 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:25:40,921 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:25:40,922 INFO L82 PathProgramCache]: Analyzing trace with hash 1236186078, now seen corresponding path program 1 times [2018-11-18 13:25:40,922 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 13:25:40,923 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:25:40,923 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:25:40,923 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 13:25:40,923 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 13:25:40,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 13:25:40,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 13:25:40,994 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 13:25:41,027 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 01:25:41 BoogieIcfgContainer [2018-11-18 13:25:41,027 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 13:25:41,028 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 13:25:41,028 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 13:25:41,028 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 13:25:41,028 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:25:40" (3/4) ... [2018-11-18 13:25:41,031 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 13:25:41,031 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 13:25:41,032 INFO L168 Benchmark]: Toolchain (without parser) took 975.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 957.1 MB in the beginning and 1.1 GB in the end (delta: -106.0 MB). Peak memory consumption was 25.1 MB. Max. memory is 11.5 GB. [2018-11-18 13:25:41,033 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 13:25:41,034 INFO L168 Benchmark]: CACSL2BoogieTranslator took 199.20 ms. Allocated memory is still 1.0 GB. Free memory was 957.1 MB in the beginning and 941.0 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-18 13:25:41,034 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.55 ms. Allocated memory is still 1.0 GB. Free memory is still 941.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 13:25:41,035 INFO L168 Benchmark]: Boogie Preprocessor took 72.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 941.0 MB in the beginning and 1.1 GB in the end (delta: -181.2 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. [2018-11-18 13:25:41,035 INFO L168 Benchmark]: RCFGBuilder took 312.15 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: 28.4 MB). Peak memory consumption was 28.4 MB. Max. memory is 11.5 GB. [2018-11-18 13:25:41,036 INFO L168 Benchmark]: TraceAbstraction took 364.78 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: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 11.5 GB. [2018-11-18 13:25:41,036 INFO L168 Benchmark]: Witness Printer took 3.76 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. [2018-11-18 13:25:41,039 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 199.20 ms. Allocated memory is still 1.0 GB. Free memory was 957.1 MB in the beginning and 941.0 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 19.55 ms. Allocated memory is still 1.0 GB. Free memory is still 941.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 72.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 941.0 MB in the beginning and 1.1 GB in the end (delta: -181.2 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 312.15 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: 28.4 MB). Peak memory consumption was 28.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 364.78 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: 27.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 11.5 GB. * Witness Printer took 3.76 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: 159]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 145, overapproximation of someBinaryArithmeticFLOAToperation at line 117, overapproximation of bitwiseAnd at line 116. Possible FailurePath: [L12-L16] 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; [L18] static const float zero_log = 0.0; [L98-L101] static const float two25_log10 = 3.3554432000e+07, ivln10_log10 = 4.3429449201e-01, log10_2hi_log10 = 3.0102920532e-01, log10_2lo_log10 = 7.9034151668e-07; [L103] static const float zero = 0.0; VAL [\old(ivln10_log10)=6442450946, \old(Lg1_log)=6442450964, \old(Lg2_log)=6442450966, \old(Lg3_log)=6442450945, \old(Lg4_log)=6442450949, \old(Lg5_log)=6442450951, \old(Lg6_log)=6442450962, \old(Lg7_log)=6442450958, \old(ln2_hi_log)=6442450948, \old(ln2_lo_log)=6442450953, \old(log10_2hi_log10)=6442450956, \old(log10_2lo_log10)=6442450961, \old(two25_log)=6442450957, \old(two25_log10)=6442450960, \old(zero)=6442450965, \old(zero_log)=6442450955, ivln10_log10=43429449201/100000000000, 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, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] [L154] float x = -1.0f / 0.0f; VAL [ivln10_log10=43429449201/100000000000, 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, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] [L155] CALL, EXPR __ieee754_log10f(x) VAL [\old(x)=6442450963, ivln10_log10=43429449201/100000000000, 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, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] [L106] float y, z; [L107] __int32_t i, k, hx; VAL [\old(x)=6442450963, ivln10_log10=43429449201/100000000000, 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, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, x=6442450963, zero=0, zero_log=0] [L110] FCALL ieee_float_shape_type gf_u; [L111] FCALL gf_u.value = (x) [L112] EXPR, FCALL gf_u.word [L112] (hx) = gf_u.word [L113] COND FALSE !(0) VAL [\old(x)=6442450963, hx=-2147483648, ivln10_log10=43429449201/100000000000, 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, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, x=6442450963, zero=0, zero_log=0] [L115] k = 0 VAL [\old(x)=6442450963, hx=-2147483648, ivln10_log10=43429449201/100000000000, 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, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, x=6442450963, zero=0, zero_log=0] [L116] COND TRUE ((hx & 0x7fffffff) == 0) [L117] RET return -two25_log10 / zero; VAL [\old(x)=6442450963, hx=-2147483648, ivln10_log10=43429449201/100000000000, 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, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, x=6442450963, zero=0, zero_log=0] [L155] EXPR __ieee754_log10f(x) VAL [__ieee754_log10f(x)=6442450950, ivln10_log10=43429449201/100000000000, 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, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, x=6442450963, zero=0, zero_log=0] [L155] float res = __ieee754_log10f(x); [L158] CALL, EXPR isnan_float(res) VAL [\old(x)=6442450950, ivln10_log10=43429449201/100000000000, 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, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] [L145] RET return x != x; VAL [\old(x)=6442450950, \result=0, ivln10_log10=43429449201/100000000000, 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, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, x=6442450950, zero=0, zero_log=0] [L158] EXPR isnan_float(res) VAL [isnan_float(res)=0, ivln10_log10=43429449201/100000000000, 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, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, res=6442450950, two25_log=33554432, two25_log10=33554432, x=6442450963, zero=0, zero_log=0] [L158] COND TRUE !isnan_float(res) [L159] __VERIFIER_error() VAL [ivln10_log10=43429449201/100000000000, 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, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, res=6442450950, two25_log=33554432, two25_log10=33554432, x=6442450963, zero=0, zero_log=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 60 locations, 1 error locations. UNSAFE Result, 0.3s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 74 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=60occurred 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 0.1.23-5842f4b [2018-11-18 13:25:42,532 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 13:25:42,533 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 13:25:42,541 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 13:25:42,541 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 13:25:42,542 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 13:25:42,542 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 13:25:42,543 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 13:25:42,545 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 13:25:42,545 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 13:25:42,546 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 13:25:42,546 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 13:25:42,547 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 13:25:42,547 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 13:25:42,548 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 13:25:42,549 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 13:25:42,549 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 13:25:42,550 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 13:25:42,552 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 13:25:42,553 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 13:25:42,554 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 13:25:42,555 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 13:25:42,556 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 13:25:42,557 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 13:25:42,557 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 13:25:42,557 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 13:25:42,558 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 13:25:42,559 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 13:25:42,559 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 13:25:42,560 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 13:25:42,560 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 13:25:42,561 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 13:25:42,561 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 13:25:42,561 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 13:25:42,562 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 13:25:42,563 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 13:25:42,563 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_bdff6641-d43c-4a2a-a7e3-45f2c7157e0a/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-18 13:25:42,573 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 13:25:42,574 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 13:25:42,574 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 13:25:42,574 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 13:25:42,574 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 13:25:42,575 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 13:25:42,575 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 13:25:42,575 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 13:25:42,575 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 13:25:42,575 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 13:25:42,576 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 13:25:42,576 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 13:25:42,576 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 13:25:42,576 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 13:25:42,576 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 13:25:42,576 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 13:25:42,576 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 13:25:42,577 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 13:25:42,577 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 13:25:42,577 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 13:25:42,577 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 13:25:42,577 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 13:25:42,577 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 13:25:42,577 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 13:25:42,578 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 13:25:42,578 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 13:25:42,578 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 13:25:42,578 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 13:25:42,578 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 13:25:42,578 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 13:25:42,578 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 13:25:42,579 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-18 13:25:42,579 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 13:25:42,579 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 13:25:42,579 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-18 13:25:42,579 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_bdff6641-d43c-4a2a-a7e3-45f2c7157e0a/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 -> 43a504f2a78cd97f2f59239768b095c018a8cdcb [2018-11-18 13:25:42,609 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 13:25:42,618 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 13:25:42,621 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 13:25:42,622 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 13:25:42,622 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 13:25:42,623 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_bdff6641-d43c-4a2a-a7e3-45f2c7157e0a/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0970b_true-unreach-call.c [2018-11-18 13:25:42,667 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_bdff6641-d43c-4a2a-a7e3-45f2c7157e0a/bin-2019/utaipan/data/b46acb95a/8fd86b0ef005462dae3ec6659b237c3e/FLAGfcdfaf5bf [2018-11-18 13:25:42,985 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 13:25:42,985 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_bdff6641-d43c-4a2a-a7e3-45f2c7157e0a/sv-benchmarks/c/float-newlib/float_req_bl_0970b_true-unreach-call.c [2018-11-18 13:25:42,990 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_bdff6641-d43c-4a2a-a7e3-45f2c7157e0a/bin-2019/utaipan/data/b46acb95a/8fd86b0ef005462dae3ec6659b237c3e/FLAGfcdfaf5bf [2018-11-18 13:25:43,000 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_bdff6641-d43c-4a2a-a7e3-45f2c7157e0a/bin-2019/utaipan/data/b46acb95a/8fd86b0ef005462dae3ec6659b237c3e [2018-11-18 13:25:43,002 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 13:25:43,003 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 13:25:43,004 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 13:25:43,004 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 13:25:43,007 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 13:25:43,008 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 01:25:43" (1/1) ... [2018-11-18 13:25:43,010 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59520e2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:25:43, skipping insertion in model container [2018-11-18 13:25:43,010 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 01:25:43" (1/1) ... [2018-11-18 13:25:43,016 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 13:25:43,034 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 13:25:43,185 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 13:25:43,190 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 13:25:43,222 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 13:25:43,243 INFO L195 MainTranslator]: Completed translation [2018-11-18 13:25:43,243 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:25:43 WrapperNode [2018-11-18 13:25:43,243 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 13:25:43,244 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 13:25:43,244 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 13:25:43,244 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 13:25:43,249 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:25:43" (1/1) ... [2018-11-18 13:25:43,257 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:25:43" (1/1) ... [2018-11-18 13:25:43,308 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 13:25:43,308 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 13:25:43,308 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 13:25:43,308 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 13:25:43,315 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:25:43" (1/1) ... [2018-11-18 13:25:43,316 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:25:43" (1/1) ... [2018-11-18 13:25:43,319 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:25:43" (1/1) ... [2018-11-18 13:25:43,319 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:25:43" (1/1) ... [2018-11-18 13:25:43,331 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:25:43" (1/1) ... [2018-11-18 13:25:43,337 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:25:43" (1/1) ... [2018-11-18 13:25:43,340 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:25:43" (1/1) ... [2018-11-18 13:25:43,343 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 13:25:43,344 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 13:25:43,344 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 13:25:43,344 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 13:25:43,345 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:25:43" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bdff6641-d43c-4a2a-a7e3-45f2c7157e0a/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 [2018-11-18 13:25:43,379 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 13:25:43,379 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 13:25:43,379 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-11-18 13:25:43,379 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-11-18 13:25:43,379 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-11-18 13:25:43,380 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 13:25:43,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 13:25:43,380 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 13:25:43,380 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-18 13:25:43,380 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_logf [2018-11-18 13:25:43,380 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_logf [2018-11-18 13:25:43,380 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_log10f [2018-11-18 13:25:43,380 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_log10f [2018-11-18 13:25:43,380 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 13:25:43,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 13:25:43,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-11-18 13:25:43,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-18 13:25:43,381 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 13:25:59,238 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 13:25:59,250 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 13:25:59,251 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:25:59 BoogieIcfgContainer [2018-11-18 13:25:59,251 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 13:25:59,252 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 13:25:59,252 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 13:25:59,255 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 13:25:59,255 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 01:25:43" (1/3) ... [2018-11-18 13:25:59,256 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55e6baf8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 01:25:59, skipping insertion in model container [2018-11-18 13:25:59,256 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:25:43" (2/3) ... [2018-11-18 13:25:59,256 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55e6baf8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 01:25:59, skipping insertion in model container [2018-11-18 13:25:59,256 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:25:59" (3/3) ... [2018-11-18 13:25:59,257 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0970b_true-unreach-call.c [2018-11-18 13:25:59,264 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 13:25:59,270 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 13:25:59,280 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 13:25:59,300 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 13:25:59,301 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 13:25:59,301 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 13:25:59,301 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 13:25:59,301 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 13:25:59,301 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 13:25:59,302 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 13:25:59,302 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 13:25:59,302 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 13:25:59,314 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states. [2018-11-18 13:25:59,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-18 13:25:59,318 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:25:59,319 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:25:59,321 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:25:59,324 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:25:59,324 INFO L82 PathProgramCache]: Analyzing trace with hash -1760367969, now seen corresponding path program 1 times [2018-11-18 13:25:59,327 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 13:25:59,327 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bdff6641-d43c-4a2a-a7e3-45f2c7157e0a/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 [2018-11-18 13:25:59,333 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:25:59,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:25:59,549 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:25:59,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:25:59,562 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 13:25:59,572 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 13:25:59,573 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 13:25:59,575 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 13:25:59,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 13:25:59,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 13:25:59,584 INFO L87 Difference]: Start difference. First operand 59 states. Second operand 2 states. [2018-11-18 13:25:59,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:25:59,599 INFO L93 Difference]: Finished difference Result 110 states and 165 transitions. [2018-11-18 13:25:59,599 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 13:25:59,600 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 20 [2018-11-18 13:25:59,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:25:59,609 INFO L225 Difference]: With dead ends: 110 [2018-11-18 13:25:59,609 INFO L226 Difference]: Without dead ends: 55 [2018-11-18 13:25:59,612 INFO L604 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 [2018-11-18 13:25:59,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2018-11-18 13:25:59,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2018-11-18 13:25:59,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2018-11-18 13:25:59,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 69 transitions. [2018-11-18 13:25:59,646 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 69 transitions. Word has length 20 [2018-11-18 13:25:59,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:25:59,647 INFO L480 AbstractCegarLoop]: Abstraction has 55 states and 69 transitions. [2018-11-18 13:25:59,647 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 13:25:59,647 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 69 transitions. [2018-11-18 13:25:59,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-18 13:25:59,648 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:25:59,648 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 13:25:59,648 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:25:59,649 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:25:59,649 INFO L82 PathProgramCache]: Analyzing trace with hash 1735189799, now seen corresponding path program 1 times [2018-11-18 13:25:59,649 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 13:25:59,649 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bdff6641-d43c-4a2a-a7e3-45f2c7157e0a/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 [2018-11-18 13:25:59,656 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:25:59,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:25:59,865 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:25:59,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:25:59,932 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 13:25:59,942 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 13:25:59,942 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 13:25:59,944 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 13:25:59,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 13:25:59,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-18 13:25:59,944 INFO L87 Difference]: Start difference. First operand 55 states and 69 transitions. Second operand 6 states. [2018-11-18 13:26:01,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:26:01,735 INFO L93 Difference]: Finished difference Result 69 states and 82 transitions. [2018-11-18 13:26:01,736 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 13:26:01,736 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2018-11-18 13:26:01,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:26:01,738 INFO L225 Difference]: With dead ends: 69 [2018-11-18 13:26:01,738 INFO L226 Difference]: Without dead ends: 59 [2018-11-18 13:26:01,739 INFO L604 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 [2018-11-18 13:26:01,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2018-11-18 13:26:01,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 55. [2018-11-18 13:26:01,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2018-11-18 13:26:01,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 68 transitions. [2018-11-18 13:26:01,744 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 68 transitions. Word has length 21 [2018-11-18 13:26:01,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:26:01,744 INFO L480 AbstractCegarLoop]: Abstraction has 55 states and 68 transitions. [2018-11-18 13:26:01,744 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 13:26:01,745 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 68 transitions. [2018-11-18 13:26:01,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-18 13:26:01,745 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:26:01,745 INFO L375 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] [2018-11-18 13:26:01,745 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:26:01,746 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:26:01,746 INFO L82 PathProgramCache]: Analyzing trace with hash 1766645601, now seen corresponding path program 1 times [2018-11-18 13:26:01,746 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 13:26:01,746 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bdff6641-d43c-4a2a-a7e3-45f2c7157e0a/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 [2018-11-18 13:26:01,750 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:26:01,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:26:01,958 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:26:03,569 WARN L180 SmtUtils]: Spent 952.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-11-18 13:26:03,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:26:03,734 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 13:26:03,743 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 13:26:03,743 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-11-18 13:26:03,744 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-18 13:26:03,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-18 13:26:03,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2018-11-18 13:26:03,744 INFO L87 Difference]: Start difference. First operand 55 states and 68 transitions. Second operand 10 states. [2018-11-18 13:26:05,884 WARN L180 SmtUtils]: Spent 699.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-11-18 13:26:08,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:26:08,619 INFO L93 Difference]: Finished difference Result 66 states and 79 transitions. [2018-11-18 13:26:08,619 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-18 13:26:08,619 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 22 [2018-11-18 13:26:08,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:26:08,620 INFO L225 Difference]: With dead ends: 66 [2018-11-18 13:26:08,620 INFO L226 Difference]: Without dead ends: 59 [2018-11-18 13:26:08,621 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2018-11-18 13:26:08,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2018-11-18 13:26:08,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 55. [2018-11-18 13:26:08,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2018-11-18 13:26:08,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 67 transitions. [2018-11-18 13:26:08,629 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 67 transitions. Word has length 22 [2018-11-18 13:26:08,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:26:08,629 INFO L480 AbstractCegarLoop]: Abstraction has 55 states and 67 transitions. [2018-11-18 13:26:08,629 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-18 13:26:08,629 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 67 transitions. [2018-11-18 13:26:08,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-18 13:26:08,630 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 13:26:08,630 INFO L375 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] [2018-11-18 13:26:08,630 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 13:26:08,630 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 13:26:08,630 INFO L82 PathProgramCache]: Analyzing trace with hash 1955721443, now seen corresponding path program 1 times [2018-11-18 13:26:08,630 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 13:26:08,631 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_bdff6641-d43c-4a2a-a7e3-45f2c7157e0a/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 [2018-11-18 13:26:08,634 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 13:26:08,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 13:26:08,726 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 13:26:08,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 13:26:08,770 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 13:26:08,783 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 13:26:08,783 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 13:26:08,783 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 13:26:08,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 13:26:08,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-18 13:26:08,784 INFO L87 Difference]: Start difference. First operand 55 states and 67 transitions. Second operand 6 states. [2018-11-18 13:26:09,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 13:26:09,345 INFO L93 Difference]: Finished difference Result 59 states and 71 transitions. [2018-11-18 13:26:09,346 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-18 13:26:09,346 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 23 [2018-11-18 13:26:09,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 13:26:09,347 INFO L225 Difference]: With dead ends: 59 [2018-11-18 13:26:09,347 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 13:26:09,347 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-11-18 13:26:09,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 13:26:09,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 13:26:09,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 13:26:09,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 13:26:09,348 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 23 [2018-11-18 13:26:09,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 13:26:09,348 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 13:26:09,348 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 13:26:09,348 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 13:26:09,348 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 13:26:09,351 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 13:26:09,585 INFO L425 ceAbstractionStarter]: For program point isnan_floatFINAL(line 145) no Hoare annotation was computed. [2018-11-18 13:26:09,585 INFO L428 ceAbstractionStarter]: At program point isnan_floatENTRY(line 145) the Hoare annotation is: true [2018-11-18 13:26:09,585 INFO L425 ceAbstractionStarter]: For program point isnan_floatEXIT(line 145) no Hoare annotation was computed. [2018-11-18 13:26:09,585 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 13:26:09,585 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-18 13:26:09,585 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 13:26:09,585 INFO L425 ceAbstractionStarter]: For program point L31(lines 31 32) no Hoare annotation was computed. [2018-11-18 13:26:09,586 INFO L425 ceAbstractionStarter]: For program point L56(lines 56 72) no Hoare annotation was computed. [2018-11-18 13:26:09,586 INFO L425 ceAbstractionStarter]: For program point L85(lines 85 89) no Hoare annotation was computed. [2018-11-18 13:26:09,586 INFO L425 ceAbstractionStarter]: For program point L40-1(lines 40 44) no Hoare annotation was computed. [2018-11-18 13:26:09,586 INFO L428 ceAbstractionStarter]: At program point L40-3(lines 40 44) the Hoare annotation is: true [2018-11-18 13:26:09,586 INFO L428 ceAbstractionStarter]: At program point __ieee754_logfENTRY(lines 20 96) the Hoare annotation is: true [2018-11-18 13:26:09,586 INFO L425 ceAbstractionStarter]: For program point __ieee754_logfFINAL(lines 20 96) no Hoare annotation was computed. [2018-11-18 13:26:09,586 INFO L425 ceAbstractionStarter]: For program point L57(lines 57 64) no Hoare annotation was computed. [2018-11-18 13:26:09,586 INFO L425 ceAbstractionStarter]: For program point L24-1(lines 24 28) no Hoare annotation was computed. [2018-11-18 13:26:09,587 INFO L428 ceAbstractionStarter]: At program point L24-3(lines 24 28) the Hoare annotation is: true [2018-11-18 13:26:09,587 INFO L425 ceAbstractionStarter]: For program point L24-4(lines 24 28) no Hoare annotation was computed. [2018-11-18 13:26:09,587 INFO L425 ceAbstractionStarter]: For program point L49-1(lines 49 53) no Hoare annotation was computed. [2018-11-18 13:26:09,587 INFO L428 ceAbstractionStarter]: At program point L49-3(lines 49 53) the Hoare annotation is: true [2018-11-18 13:26:09,587 INFO L425 ceAbstractionStarter]: For program point L49-4(lines 49 53) no Hoare annotation was computed. [2018-11-18 13:26:09,587 INFO L425 ceAbstractionStarter]: For program point L37(lines 37 45) no Hoare annotation was computed. [2018-11-18 13:26:09,587 INFO L425 ceAbstractionStarter]: For program point L37-1(lines 37 45) no Hoare annotation was computed. [2018-11-18 13:26:09,587 INFO L425 ceAbstractionStarter]: For program point L66(lines 66 71) no Hoare annotation was computed. [2018-11-18 13:26:09,587 INFO L425 ceAbstractionStarter]: For program point L33(lines 33 34) no Hoare annotation was computed. [2018-11-18 13:26:09,587 INFO L425 ceAbstractionStarter]: For program point __ieee754_logfEXIT(lines 20 96) no Hoare annotation was computed. [2018-11-18 13:26:09,588 INFO L425 ceAbstractionStarter]: For program point L91(lines 91 94) no Hoare annotation was computed. [2018-11-18 13:26:09,588 INFO L425 ceAbstractionStarter]: For program point L58(lines 58 63) no Hoare annotation was computed. [2018-11-18 13:26:09,588 INFO L425 ceAbstractionStarter]: For program point L83(lines 83 95) no Hoare annotation was computed. [2018-11-18 13:26:09,588 INFO L425 ceAbstractionStarter]: For program point L35(lines 35 36) no Hoare annotation was computed. [2018-11-18 13:26:09,588 INFO L425 ceAbstractionStarter]: For program point L122(lines 122 130) no Hoare annotation was computed. [2018-11-18 13:26:09,588 INFO L425 ceAbstractionStarter]: For program point L122-1(lines 122 130) no Hoare annotation was computed. [2018-11-18 13:26:09,588 INFO L425 ceAbstractionStarter]: For program point L118(lines 118 119) no Hoare annotation was computed. [2018-11-18 13:26:09,588 INFO L425 ceAbstractionStarter]: For program point L135-1(lines 135 139) no Hoare annotation was computed. [2018-11-18 13:26:09,589 INFO L421 ceAbstractionStarter]: At program point L135-3(lines 135 139) the Hoare annotation is: (or (exists ((__ieee754_log10f_~hx~0 (_ BitVec 32))) (and (not (bvslt __ieee754_log10f_~hx~0 (_ bv0 32))) (= (fp ((_ extract 31 31) __ieee754_log10f_~hx~0) ((_ extract 30 23) __ieee754_log10f_~hx~0) ((_ extract 22 0) __ieee754_log10f_~hx~0)) |__ieee754_log10f_#in~x|))) (not (= ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53)) ~zero~0))) [2018-11-18 13:26:09,589 INFO L421 ceAbstractionStarter]: At program point L135-4(lines 135 139) the Hoare annotation is: (or (exists ((__ieee754_log10f_~hx~0 (_ BitVec 32))) (and (not (bvslt __ieee754_log10f_~hx~0 (_ bv0 32))) (= (fp ((_ extract 31 31) __ieee754_log10f_~hx~0) ((_ extract 30 23) __ieee754_log10f_~hx~0) ((_ extract 22 0) __ieee754_log10f_~hx~0)) |__ieee754_log10f_#in~x|))) (not (= ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53)) ~zero~0))) [2018-11-18 13:26:09,589 INFO L425 ceAbstractionStarter]: For program point L140(line 140) no Hoare annotation was computed. [2018-11-18 13:26:09,589 INFO L428 ceAbstractionStarter]: At program point __ieee754_log10fENTRY(lines 105 142) the Hoare annotation is: true [2018-11-18 13:26:09,589 INFO L425 ceAbstractionStarter]: For program point __ieee754_log10fEXIT(lines 105 142) no Hoare annotation was computed. [2018-11-18 13:26:09,589 INFO L425 ceAbstractionStarter]: For program point __ieee754_log10fFINAL(lines 105 142) no Hoare annotation was computed. [2018-11-18 13:26:09,589 INFO L425 ceAbstractionStarter]: For program point L120(lines 120 121) no Hoare annotation was computed. [2018-11-18 13:26:09,589 INFO L425 ceAbstractionStarter]: For program point L116(lines 116 117) no Hoare annotation was computed. [2018-11-18 13:26:09,589 INFO L425 ceAbstractionStarter]: For program point L125-1(lines 125 129) no Hoare annotation was computed. [2018-11-18 13:26:09,591 INFO L421 ceAbstractionStarter]: At program point L125-3(lines 125 129) the Hoare annotation is: (or (and (= (fp ((_ extract 31 31) __ieee754_log10f_~hx~0) ((_ extract 30 23) __ieee754_log10f_~hx~0) ((_ extract 22 0) __ieee754_log10f_~hx~0)) |__ieee754_log10f_#in~x|) (exists ((__ieee754_log10f_~hx~0 (_ BitVec 32))) (and (not (bvslt __ieee754_log10f_~hx~0 (_ bv0 32))) (= (fp ((_ extract 31 31) __ieee754_log10f_~hx~0) ((_ extract 30 23) __ieee754_log10f_~hx~0) ((_ extract 22 0) __ieee754_log10f_~hx~0)) |__ieee754_log10f_#in~x|)))) (not (= ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53)) ~zero~0))) [2018-11-18 13:26:09,591 INFO L425 ceAbstractionStarter]: For program point L109-1(lines 109 113) no Hoare annotation was computed. [2018-11-18 13:26:09,591 INFO L421 ceAbstractionStarter]: At program point L109-3(lines 109 113) the Hoare annotation is: (or (not (= ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53)) ~zero~0)) (= |__ieee754_log10f_#in~x| __ieee754_log10f_~x)) [2018-11-18 13:26:09,592 INFO L425 ceAbstractionStarter]: For program point L109-4(lines 109 113) no Hoare annotation was computed. [2018-11-18 13:26:09,592 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 13:26:09,592 INFO L421 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (= ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53)) ~zero~0) [2018-11-18 13:26:09,592 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 13:26:09,592 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 13:26:09,592 INFO L425 ceAbstractionStarter]: For program point L159(line 159) no Hoare annotation was computed. [2018-11-18 13:26:09,592 INFO L421 ceAbstractionStarter]: At program point L158(line 158) the Hoare annotation is: (let ((.cse1 ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53)))) (or (let ((.cse0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24)))) (and (= main_~res~0 (fp.div roundNearestTiesToEven (fp.sub roundNearestTiesToEven .cse0 .cse0) .cse1)) (= main_~x~0 .cse0))) (not (= .cse1 ~zero~0)))) [2018-11-18 13:26:09,592 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 147 164) the Hoare annotation is: true [2018-11-18 13:26:09,593 INFO L425 ceAbstractionStarter]: For program point L158-1(lines 158 161) no Hoare annotation was computed. [2018-11-18 13:26:09,593 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 147 164) no Hoare annotation was computed. [2018-11-18 13:26:09,593 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 159) no Hoare annotation was computed. [2018-11-18 13:26:09,593 INFO L421 ceAbstractionStarter]: At program point L155(line 155) the Hoare annotation is: (or (= main_~x~0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24))) (not (= ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53)) ~zero~0))) [2018-11-18 13:26:09,593 INFO L425 ceAbstractionStarter]: For program point L155-1(line 155) no Hoare annotation was computed. [2018-11-18 13:26:09,593 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 147 164) no Hoare annotation was computed. [2018-11-18 13:26:09,597 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-18 13:26:09,598 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-18 13:26:09,598 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-18 13:26:09,598 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-18 13:26:09,600 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 13:26:09,601 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-18 13:26:09,602 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-18 13:26:09,602 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-18 13:26:09,602 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-18 13:26:09,602 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 13:26:09,603 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 13:26:09,603 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 13:26:09,603 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-18 13:26:09,604 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-18 13:26:09,604 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-18 13:26:09,604 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-18 13:26:09,604 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 13:26:09,605 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-18 13:26:09,605 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-18 13:26:09,605 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-18 13:26:09,605 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-18 13:26:09,605 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 13:26:09,607 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 01:26:09 BoogieIcfgContainer [2018-11-18 13:26:09,607 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 13:26:09,608 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 13:26:09,608 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 13:26:09,608 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 13:26:09,608 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:25:59" (3/4) ... [2018-11-18 13:26:09,613 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 13:26:09,617 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_float [2018-11-18 13:26:09,617 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 13:26:09,617 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_logf [2018-11-18 13:26:09,618 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_log10f [2018-11-18 13:26:09,618 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 13:26:09,623 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 44 nodes and edges [2018-11-18 13:26:09,623 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2018-11-18 13:26:09,623 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-18 13:26:09,623 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-18 13:26:09,641 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE()) == zero) || \old(x) == x [2018-11-18 13:26:09,642 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == \old(x) && (\exists __ieee754_log10f_~hx~0 : bv32 :: !~bvslt32(__ieee754_log10f_~hx~0, 0bv32) && ~fp~LONGDOUBLE(__ieee754_log10f_~hx~0[31:31], __ieee754_log10f_~hx~0[30:23], __ieee754_log10f_~hx~0[22:0]) == \old(x))) || !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE()) == zero) [2018-11-18 13:26:09,642 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists __ieee754_log10f_~hx~0 : bv32 :: !~bvslt32(__ieee754_log10f_~hx~0, 0bv32) && ~fp~LONGDOUBLE(__ieee754_log10f_~hx~0[31:31], __ieee754_log10f_~hx~0[30:23], __ieee754_log10f_~hx~0[22:0]) == \old(x)) || !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE()) == zero) [2018-11-18 13:26:09,670 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_bdff6641-d43c-4a2a-a7e3-45f2c7157e0a/bin-2019/utaipan/witness.graphml [2018-11-18 13:26:09,670 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 13:26:09,671 INFO L168 Benchmark]: Toolchain (without parser) took 26668.58 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 953.2 MB in the beginning and 924.5 MB in the end (delta: 28.7 MB). Peak memory consumption was 177.1 MB. Max. memory is 11.5 GB. [2018-11-18 13:26:09,672 INFO L168 Benchmark]: CDTParser took 0.15 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. [2018-11-18 13:26:09,672 INFO L168 Benchmark]: CACSL2BoogieTranslator took 239.60 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 935.8 MB in the end (delta: 17.4 MB). Peak memory consumption was 17.4 MB. Max. memory is 11.5 GB. [2018-11-18 13:26:09,672 INFO L168 Benchmark]: Boogie Procedure Inliner took 64.37 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 935.8 MB in the beginning and 1.1 GB in the end (delta: -207.0 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. [2018-11-18 13:26:09,673 INFO L168 Benchmark]: Boogie Preprocessor took 35.18 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-11-18 13:26:09,673 INFO L168 Benchmark]: RCFGBuilder took 15907.31 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: 35.1 MB). Peak memory consumption was 35.1 MB. Max. memory is 11.5 GB. [2018-11-18 13:26:09,673 INFO L168 Benchmark]: TraceAbstraction took 10355.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 931.3 MB in the end (delta: 169.7 MB). Peak memory consumption was 169.7 MB. Max. memory is 11.5 GB. [2018-11-18 13:26:09,673 INFO L168 Benchmark]: Witness Printer took 62.87 ms. Allocated memory is still 1.2 GB. Free memory was 931.3 MB in the beginning and 924.5 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-11-18 13:26:09,675 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 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 239.60 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 935.8 MB in the end (delta: 17.4 MB). Peak memory consumption was 17.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 64.37 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 935.8 MB in the beginning and 1.1 GB in the end (delta: -207.0 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 35.18 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 15907.31 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: 35.1 MB). Peak memory consumption was 35.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 10355.66 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 931.3 MB in the end (delta: 169.7 MB). Peak memory consumption was 169.7 MB. Max. memory is 11.5 GB. * Witness Printer took 62.87 ms. Allocated memory is still 1.2 GB. Free memory was 931.3 MB in the beginning and 924.5 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,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_log10f_~hx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,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_log10f_~hx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 159]: 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: 49]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 135]: Loop Invariant [2018-11-18 13:26:09,679 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-18 13:26:09,679 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-18 13:26:09,680 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-18 13:26:09,680 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-18 13:26:09,680 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 13:26:09,680 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-18 13:26:09,680 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-18 13:26:09,681 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-18 13:26:09,681 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-18 13:26:09,681 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (\exists __ieee754_log10f_~hx~0 : bv32 :: !~bvslt32(__ieee754_log10f_~hx~0, 0bv32) && ~fp~LONGDOUBLE(__ieee754_log10f_~hx~0[31:31], __ieee754_log10f_~hx~0[30:23], __ieee754_log10f_~hx~0[22:0]) == \old(x)) || !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE()) == zero) - InvariantResult [Line: 109]: Loop Invariant [2018-11-18 13:26:09,681 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 13:26:09,682 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE()) == zero) || \old(x) == x - InvariantResult [Line: 125]: Loop Invariant [2018-11-18 13:26:09,682 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-18 13:26:09,682 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-18 13:26:09,682 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-18 13:26:09,682 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-18 13:26:09,683 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 13:26:09,683 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-18 13:26:09,683 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-18 13:26:09,683 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-18 13:26:09,683 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_log10f_~hx~0,QUANTIFIED] [2018-11-18 13:26:09,683 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == \old(x) && (\exists __ieee754_log10f_~hx~0 : bv32 :: !~bvslt32(__ieee754_log10f_~hx~0, 0bv32) && ~fp~LONGDOUBLE(__ieee754_log10f_~hx~0[31:31], __ieee754_log10f_~hx~0[30:23], __ieee754_log10f_~hx~0[22:0]) == \old(x))) || !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE()) == zero) - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 59 locations, 1 error locations. SAFE Result, 10.2s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 7.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 243 SDtfs, 117 SDslu, 782 SDs, 0 SdLazy, 155 SolverSat, 12 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 4.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 93 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 3.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=59occurred 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, 4 MinimizatonAttempts, 8 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 16 LocationsWithAnnotation, 23 PreInvPairs, 32 NumberOfFragments, 156 HoareAnnotationTreeSize, 23 FomulaSimplifications, 45 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 16 FomulaSimplificationsInter, 111 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 86 NumberOfCodeBlocks, 86 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 82 ConstructedInterpolants, 5 QuantifiedInterpolants, 8678 SizeOfPredicates, 11 NumberOfNonLiveVariables, 400 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...