./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0920b_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_9c94885e-4465-43dc-b625-873efec38dc9/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_9c94885e-4465-43dc-b625-873efec38dc9/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_9c94885e-4465-43dc-b625-873efec38dc9/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_9c94885e-4465-43dc-b625-873efec38dc9/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0920b_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_9c94885e-4465-43dc-b625-873efec38dc9/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_9c94885e-4465-43dc-b625-873efec38dc9/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 df7585bdb7f55dd146660d2fca5142563fdf3df8 .............................................................................................................................................................................................................................................................................................................................. 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_9c94885e-4465-43dc-b625-873efec38dc9/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_9c94885e-4465-43dc-b625-873efec38dc9/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_9c94885e-4465-43dc-b625-873efec38dc9/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_9c94885e-4465-43dc-b625-873efec38dc9/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0920b_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_9c94885e-4465-43dc-b625-873efec38dc9/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_9c94885e-4465-43dc-b625-873efec38dc9/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 df7585bdb7f55dd146660d2fca5142563fdf3df8 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-02 07:07:57,406 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 07:07:57,407 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 07:07:57,413 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 07:07:57,413 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 07:07:57,414 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 07:07:57,414 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 07:07:57,415 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 07:07:57,416 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 07:07:57,416 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 07:07:57,417 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 07:07:57,417 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 07:07:57,417 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 07:07:57,418 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 07:07:57,418 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 07:07:57,419 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 07:07:57,419 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 07:07:57,420 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 07:07:57,421 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 07:07:57,422 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 07:07:57,422 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 07:07:57,423 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 07:07:57,424 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 07:07:57,424 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 07:07:57,424 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 07:07:57,424 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 07:07:57,425 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 07:07:57,425 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 07:07:57,426 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 07:07:57,426 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 07:07:57,426 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 07:07:57,427 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 07:07:57,427 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 07:07:57,427 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 07:07:57,427 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 07:07:57,428 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 07:07:57,428 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_9c94885e-4465-43dc-b625-873efec38dc9/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-02 07:07:57,435 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 07:07:57,435 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 07:07:57,436 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 07:07:57,436 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-02 07:07:57,436 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-02 07:07:57,436 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-02 07:07:57,436 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-02 07:07:57,436 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-02 07:07:57,436 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-02 07:07:57,437 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-02 07:07:57,437 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-02 07:07:57,437 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-02 07:07:57,437 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-02 07:07:57,437 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 07:07:57,437 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 07:07:57,437 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 07:07:57,437 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 07:07:57,438 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 07:07:57,438 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 07:07:57,438 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 07:07:57,438 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 07:07:57,438 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 07:07:57,438 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 07:07:57,438 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 07:07:57,438 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 07:07:57,438 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 07:07:57,438 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 07:07:57,438 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-02 07:07:57,439 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 07:07:57,439 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 07:07:57,439 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 07:07:57,439 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 07:07:57,439 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-02 07:07:57,439 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 07:07:57,439 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-02 07:07:57,439 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-02 07:07:57,439 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_9c94885e-4465-43dc-b625-873efec38dc9/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 -> df7585bdb7f55dd146660d2fca5142563fdf3df8 [2018-12-02 07:07:57,456 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 07:07:57,463 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 07:07:57,465 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 07:07:57,466 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 07:07:57,466 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 07:07:57,466 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_9c94885e-4465-43dc-b625-873efec38dc9/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0920b_true-unreach-call.c [2018-12-02 07:07:57,502 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9c94885e-4465-43dc-b625-873efec38dc9/bin-2019/utaipan/data/5cc84d7e0/e40ab315f62a43e3a449c434f7685c41/FLAGa94c26541 [2018-12-02 07:07:57,887 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 07:07:57,887 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_9c94885e-4465-43dc-b625-873efec38dc9/sv-benchmarks/c/float-newlib/float_req_bl_0920b_true-unreach-call.c [2018-12-02 07:07:57,892 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9c94885e-4465-43dc-b625-873efec38dc9/bin-2019/utaipan/data/5cc84d7e0/e40ab315f62a43e3a449c434f7685c41/FLAGa94c26541 [2018-12-02 07:07:57,902 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_9c94885e-4465-43dc-b625-873efec38dc9/bin-2019/utaipan/data/5cc84d7e0/e40ab315f62a43e3a449c434f7685c41 [2018-12-02 07:07:57,904 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 07:07:57,905 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 07:07:57,905 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 07:07:57,906 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 07:07:57,908 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 07:07:57,909 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:07:57" (1/1) ... [2018-12-02 07:07:57,911 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28bd7f12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:07:57, skipping insertion in model container [2018-12-02 07:07:57,911 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:07:57" (1/1) ... [2018-12-02 07:07:57,916 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 07:07:57,929 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 07:07:58,032 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 07:07:58,034 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 07:07:58,055 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 07:07:58,097 INFO L195 MainTranslator]: Completed translation [2018-12-02 07:07:58,098 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:07:58 WrapperNode [2018-12-02 07:07:58,098 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 07:07:58,098 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 07:07:58,098 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 07:07:58,098 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 07:07:58,104 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:07:58" (1/1) ... [2018-12-02 07:07:58,112 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:07:58" (1/1) ... [2018-12-02 07:07:58,117 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 07:07:58,117 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 07:07:58,117 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 07:07:58,117 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 07:07:58,123 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:07:58" (1/1) ... [2018-12-02 07:07:58,123 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:07:58" (1/1) ... [2018-12-02 07:07:58,125 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:07:58" (1/1) ... [2018-12-02 07:07:58,125 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:07:58" (1/1) ... [2018-12-02 07:07:58,131 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:07:58" (1/1) ... [2018-12-02 07:07:58,135 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:07:58" (1/1) ... [2018-12-02 07:07:58,136 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:07:58" (1/1) ... [2018-12-02 07:07:58,137 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 07:07:58,138 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 07:07:58,138 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 07:07:58,138 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 07:07:58,138 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:07:58" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9c94885e-4465-43dc-b625-873efec38dc9/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 07:07:58,169 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-02 07:07:58,170 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-02 07:07:58,170 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-12-02 07:07:58,170 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-12-02 07:07:58,170 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-12-02 07:07:58,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-02 07:07:58,170 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-02 07:07:58,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-02 07:07:58,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-12-02 07:07:58,170 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-02 07:07:58,170 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_logf [2018-12-02 07:07:58,170 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_logf [2018-12-02 07:07:58,170 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 07:07:58,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 07:07:58,171 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-02 07:07:58,171 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-02 07:07:58,342 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 07:07:58,342 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-12-02 07:07:58,343 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:07:58 BoogieIcfgContainer [2018-12-02 07:07:58,343 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 07:07:58,344 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-02 07:07:58,344 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-02 07:07:58,346 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-02 07:07:58,346 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 07:07:57" (1/3) ... [2018-12-02 07:07:58,347 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67e0911b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:07:58, skipping insertion in model container [2018-12-02 07:07:58,347 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:07:58" (2/3) ... [2018-12-02 07:07:58,347 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67e0911b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:07:58, skipping insertion in model container [2018-12-02 07:07:58,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:07:58" (3/3) ... [2018-12-02 07:07:58,349 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0920b_true-unreach-call.c [2018-12-02 07:07:58,357 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-02 07:07:58,362 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-02 07:07:58,378 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-02 07:07:58,398 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-02 07:07:58,398 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-02 07:07:58,398 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-02 07:07:58,398 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 07:07:58,399 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 07:07:58,399 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-02 07:07:58,399 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 07:07:58,399 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-02 07:07:58,413 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states. [2018-12-02 07:07:58,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-02 07:07:58,419 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 07:07:58,419 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 07:07:58,421 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 07:07:58,426 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 07:07:58,426 INFO L82 PathProgramCache]: Analyzing trace with hash -2125295103, now seen corresponding path program 1 times [2018-12-02 07:07:58,428 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 07:07:58,456 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 07:07:58,456 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 07:07:58,456 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 07:07:58,456 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 07:07:58,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 07:07:58,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 07:07:58,532 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 07:07:58,532 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-02 07:07:58,532 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 07:07:58,536 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-02 07:07:58,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-02 07:07:58,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-02 07:07:58,549 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 2 states. [2018-12-02 07:07:58,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 07:07:58,562 INFO L93 Difference]: Finished difference Result 78 states and 112 transitions. [2018-12-02 07:07:58,562 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-02 07:07:58,563 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 21 [2018-12-02 07:07:58,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 07:07:58,569 INFO L225 Difference]: With dead ends: 78 [2018-12-02 07:07:58,569 INFO L226 Difference]: Without dead ends: 39 [2018-12-02 07:07:58,571 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-02 07:07:58,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-12-02 07:07:58,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2018-12-02 07:07:58,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-12-02 07:07:58,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 49 transitions. [2018-12-02 07:07:58,593 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 49 transitions. Word has length 21 [2018-12-02 07:07:58,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 07:07:58,594 INFO L480 AbstractCegarLoop]: Abstraction has 39 states and 49 transitions. [2018-12-02 07:07:58,594 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-02 07:07:58,594 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 49 transitions. [2018-12-02 07:07:58,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-02 07:07:58,594 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 07:07:58,594 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 07:07:58,595 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 07:07:58,595 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 07:07:58,595 INFO L82 PathProgramCache]: Analyzing trace with hash 1250768616, now seen corresponding path program 1 times [2018-12-02 07:07:58,595 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 07:07:58,596 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 07:07:58,596 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 07:07:58,596 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 07:07:58,596 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 07:07:58,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 07:07:58,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 07:07:58,650 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-02 07:07:58,673 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 07:07:58 BoogieIcfgContainer [2018-12-02 07:07:58,673 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-02 07:07:58,674 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 07:07:58,674 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 07:07:58,674 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 07:07:58,674 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:07:58" (3/4) ... [2018-12-02 07:07:58,677 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-02 07:07:58,677 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 07:07:58,678 INFO L168 Benchmark]: Toolchain (without parser) took 774.10 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.7 MB). Free memory was 955.1 MB in the beginning and 1.1 GB in the end (delta: -109.8 MB). Peak memory consumption was 24.9 MB. Max. memory is 11.5 GB. [2018-12-02 07:07:58,679 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 981.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 07:07:58,680 INFO L168 Benchmark]: CACSL2BoogieTranslator took 192.44 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.7 MB). Free memory was 955.1 MB in the beginning and 1.1 GB in the end (delta: -178.2 MB). Peak memory consumption was 26.6 MB. Max. memory is 11.5 GB. [2018-12-02 07:07:58,680 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.55 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-12-02 07:07:58,681 INFO L168 Benchmark]: Boogie Preprocessor took 20.76 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-12-02 07:07:58,681 INFO L168 Benchmark]: RCFGBuilder took 205.27 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: 21.3 MB). Peak memory consumption was 21.3 MB. Max. memory is 11.5 GB. [2018-12-02 07:07:58,682 INFO L168 Benchmark]: TraceAbstraction took 329.72 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: 40.3 MB). Peak memory consumption was 40.3 MB. Max. memory is 11.5 GB. [2018-12-02 07:07:58,682 INFO L168 Benchmark]: Witness Printer took 3.94 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 07:07:58,685 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 981.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 192.44 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.7 MB). Free memory was 955.1 MB in the beginning and 1.1 GB in the end (delta: -178.2 MB). Peak memory consumption was 26.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 18.55 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.76 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 205.27 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: 21.3 MB). Peak memory consumption was 21.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 329.72 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: 40.3 MB). Peak memory consumption was 40.3 MB. Max. memory is 11.5 GB. * Witness Printer took 3.94 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: 125]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 111, overapproximation of someBinaryArithmeticFLOAToperation at line 44, overapproximation of bitwiseAnd at line 43. Possible FailurePath: [L24-L28] static const float ln2_hi_log = 6.9313812256e-01, ln2_lo_log = 9.0580006145e-06, two25_log = 3.355443200e+07, Lg1_log = 6.6666668653e-01, Lg2_log = 4.0000000596e-01, Lg3_log = 2.8571429849e-01, Lg4_log = 2.2222198546e-01, Lg5_log = 1.8183572590e-01, Lg6_log = 1.5313838422e-01, Lg7_log = 1.4798198640e-01; [L30] static const float zero_log = 0.0; VAL [\old(Lg1_log)=6442450960, \old(Lg2_log)=6442450962, \old(Lg3_log)=6442450945, \old(Lg4_log)=6442450948, \old(Lg5_log)=6442450950, \old(Lg6_log)=6442450959, \old(Lg7_log)=6442450958, \old(ln2_hi_log)=6442450947, \old(ln2_lo_log)=6442450954, \old(two25_log)=6442450957, \old(zero_log)=6442450956, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L120] float x = -1.0f / 0.0f; VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L121] CALL, EXPR __ieee754_logf(x) VAL [\old(x)=6442450952, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L33] float hfsq, f, s, z, R, w, t1, t2, dk; [L34] __int32_t k, ix, i, j; VAL [\old(x)=6442450952, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=6442450952, zero_log=0] [L37] ieee_float_shape_type gf_u; [L38] gf_u.value = (x) [L39] EXPR gf_u.word [L39] (ix) = gf_u.word [L42] k = 0 VAL [\old(x)=6442450952, ix=-2147483648, k=0, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=6442450952, zero_log=0] [L43] COND TRUE ((ix & 0x7fffffff) == 0) [L44] return -two25_log / zero_log; VAL [\old(x)=6442450952, ix=-2147483648, k=0, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=6442450952, zero_log=0] [L121] RET, EXPR __ieee754_logf(x) VAL [__ieee754_logf(x)=6442450949, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=6442450952, zero_log=0] [L121] float res = __ieee754_logf(x); [L124] CALL, EXPR isnan_float(res) VAL [\old(x)=6442450949, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, zero_log=0] [L111] return x != x; VAL [\old(x)=6442450949, \result=0, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, two25_log=33554432, x=6442450949, zero_log=0] [L124] RET, EXPR isnan_float(res) VAL [isnan_float(res)=0, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, res=6442450949, two25_log=33554432, x=6442450952, zero_log=0] [L124] COND TRUE !isnan_float(res) [L125] __VERIFIER_error() VAL [Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, res=6442450949, two25_log=33554432, x=6442450952, zero_log=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 43 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 53 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=43occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 43 NumberOfCodeBlocks, 43 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 400 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-635dfa2 [2018-12-02 07:07:59,946 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 07:07:59,947 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 07:07:59,953 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 07:07:59,953 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 07:07:59,953 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 07:07:59,954 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 07:07:59,955 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 07:07:59,956 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 07:07:59,956 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 07:07:59,956 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 07:07:59,956 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 07:07:59,957 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 07:07:59,957 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 07:07:59,958 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 07:07:59,958 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 07:07:59,959 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 07:07:59,960 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 07:07:59,960 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 07:07:59,961 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 07:07:59,962 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 07:07:59,962 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 07:07:59,964 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 07:07:59,964 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 07:07:59,964 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 07:07:59,964 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 07:07:59,965 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 07:07:59,965 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 07:07:59,966 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 07:07:59,966 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 07:07:59,967 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 07:07:59,967 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 07:07:59,967 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 07:07:59,967 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 07:07:59,968 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 07:07:59,968 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 07:07:59,968 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_9c94885e-4465-43dc-b625-873efec38dc9/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-12-02 07:07:59,975 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 07:07:59,976 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 07:07:59,976 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 07:07:59,976 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-02 07:07:59,976 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-02 07:07:59,976 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-02 07:07:59,976 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-02 07:07:59,976 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-02 07:07:59,977 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-02 07:07:59,977 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-02 07:07:59,977 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 07:07:59,977 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 07:07:59,977 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 07:07:59,977 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 07:07:59,977 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 07:07:59,977 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 07:07:59,977 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 07:07:59,978 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-02 07:07:59,978 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-02 07:07:59,978 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 07:07:59,978 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 07:07:59,978 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-02 07:07:59,978 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 07:07:59,978 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 07:07:59,978 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 07:07:59,978 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 07:07:59,978 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-02 07:07:59,978 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 07:07:59,978 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 07:07:59,979 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 07:07:59,979 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 07:07:59,979 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-12-02 07:07:59,979 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 07:07:59,979 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-02 07:07:59,979 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-02 07:07:59,979 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_9c94885e-4465-43dc-b625-873efec38dc9/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 -> df7585bdb7f55dd146660d2fca5142563fdf3df8 [2018-12-02 07:07:59,997 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 07:08:00,007 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 07:08:00,010 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 07:08:00,011 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 07:08:00,012 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 07:08:00,012 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_9c94885e-4465-43dc-b625-873efec38dc9/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0920b_true-unreach-call.c [2018-12-02 07:08:00,054 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9c94885e-4465-43dc-b625-873efec38dc9/bin-2019/utaipan/data/965952900/6b9fbf32a9514ce68c32f0996f966d84/FLAG3374002f6 [2018-12-02 07:08:00,487 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 07:08:00,487 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_9c94885e-4465-43dc-b625-873efec38dc9/sv-benchmarks/c/float-newlib/float_req_bl_0920b_true-unreach-call.c [2018-12-02 07:08:00,493 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9c94885e-4465-43dc-b625-873efec38dc9/bin-2019/utaipan/data/965952900/6b9fbf32a9514ce68c32f0996f966d84/FLAG3374002f6 [2018-12-02 07:08:00,502 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_9c94885e-4465-43dc-b625-873efec38dc9/bin-2019/utaipan/data/965952900/6b9fbf32a9514ce68c32f0996f966d84 [2018-12-02 07:08:00,503 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 07:08:00,504 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 07:08:00,505 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 07:08:00,505 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 07:08:00,508 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 07:08:00,509 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:08:00" (1/1) ... [2018-12-02 07:08:00,510 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36a0bb1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:08:00, skipping insertion in model container [2018-12-02 07:08:00,510 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:08:00" (1/1) ... [2018-12-02 07:08:00,515 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 07:08:00,529 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 07:08:00,658 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 07:08:00,663 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 07:08:00,690 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 07:08:00,704 INFO L195 MainTranslator]: Completed translation [2018-12-02 07:08:00,705 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:08:00 WrapperNode [2018-12-02 07:08:00,705 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 07:08:00,705 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 07:08:00,705 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 07:08:00,705 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 07:08:00,710 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:08:00" (1/1) ... [2018-12-02 07:08:00,717 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:08:00" (1/1) ... [2018-12-02 07:08:00,721 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 07:08:00,721 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 07:08:00,721 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 07:08:00,721 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 07:08:00,756 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:08:00" (1/1) ... [2018-12-02 07:08:00,757 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:08:00" (1/1) ... [2018-12-02 07:08:00,760 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:08:00" (1/1) ... [2018-12-02 07:08:00,760 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:08:00" (1/1) ... [2018-12-02 07:08:00,768 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:08:00" (1/1) ... [2018-12-02 07:08:00,771 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:08:00" (1/1) ... [2018-12-02 07:08:00,773 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:08:00" (1/1) ... [2018-12-02 07:08:00,774 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 07:08:00,775 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 07:08:00,775 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 07:08:00,775 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 07:08:00,775 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:08:00" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9c94885e-4465-43dc-b625-873efec38dc9/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 07:08:00,805 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-02 07:08:00,805 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-02 07:08:00,805 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-12-02 07:08:00,805 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-12-02 07:08:00,805 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-12-02 07:08:00,805 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-02 07:08:00,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-02 07:08:00,806 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-02 07:08:00,806 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_logf [2018-12-02 07:08:00,806 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_logf [2018-12-02 07:08:00,806 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-12-02 07:08:00,806 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 07:08:00,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 07:08:00,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-12-02 07:08:00,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-12-02 07:08:00,806 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-02 07:08:02,932 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 07:08:12,531 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 07:08:12,613 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 07:08:12,613 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-12-02 07:08:12,614 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:08:12 BoogieIcfgContainer [2018-12-02 07:08:12,614 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 07:08:12,614 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-02 07:08:12,614 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-02 07:08:12,616 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-02 07:08:12,616 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 07:08:00" (1/3) ... [2018-12-02 07:08:12,616 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1078e6ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:08:12, skipping insertion in model container [2018-12-02 07:08:12,616 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:08:00" (2/3) ... [2018-12-02 07:08:12,617 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1078e6ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:08:12, skipping insertion in model container [2018-12-02 07:08:12,617 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:08:12" (3/3) ... [2018-12-02 07:08:12,618 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0920b_true-unreach-call.c [2018-12-02 07:08:12,624 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-02 07:08:12,628 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-02 07:08:12,637 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-02 07:08:12,656 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-02 07:08:12,657 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-02 07:08:12,657 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-02 07:08:12,657 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-02 07:08:12,657 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 07:08:12,657 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 07:08:12,657 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-02 07:08:12,657 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 07:08:12,657 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-02 07:08:12,668 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2018-12-02 07:08:12,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-12-02 07:08:12,672 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 07:08:12,672 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 07:08:12,674 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 07:08:12,677 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 07:08:12,677 INFO L82 PathProgramCache]: Analyzing trace with hash 1279650342, now seen corresponding path program 1 times [2018-12-02 07:08:12,680 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-02 07:08:12,680 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9c94885e-4465-43dc-b625-873efec38dc9/bin-2019/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-12-02 07:08:12,684 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 07:08:12,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 07:08:12,888 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 07:08:12,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 07:08:12,899 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 07:08:12,911 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 07:08:12,911 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-02 07:08:12,913 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-02 07:08:12,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-02 07:08:12,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-02 07:08:12,922 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 2 states. [2018-12-02 07:08:12,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 07:08:12,935 INFO L93 Difference]: Finished difference Result 76 states and 110 transitions. [2018-12-02 07:08:12,936 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-02 07:08:12,936 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 20 [2018-12-02 07:08:12,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 07:08:12,943 INFO L225 Difference]: With dead ends: 76 [2018-12-02 07:08:12,943 INFO L226 Difference]: Without dead ends: 38 [2018-12-02 07:08:12,945 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-02 07:08:12,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-12-02 07:08:12,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2018-12-02 07:08:12,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-12-02 07:08:12,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 48 transitions. [2018-12-02 07:08:12,970 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 48 transitions. Word has length 20 [2018-12-02 07:08:12,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 07:08:12,971 INFO L480 AbstractCegarLoop]: Abstraction has 38 states and 48 transitions. [2018-12-02 07:08:12,971 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-02 07:08:12,971 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 48 transitions. [2018-12-02 07:08:12,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-02 07:08:12,972 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 07:08:12,972 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 07:08:12,972 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 07:08:12,972 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 07:08:12,972 INFO L82 PathProgramCache]: Analyzing trace with hash -1035286437, now seen corresponding path program 1 times [2018-12-02 07:08:12,972 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-02 07:08:12,973 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9c94885e-4465-43dc-b625-873efec38dc9/bin-2019/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-12-02 07:08:12,976 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 07:08:13,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 07:08:13,168 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 07:08:13,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 07:08:13,229 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 07:08:13,238 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 07:08:13,238 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-02 07:08:13,239 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-02 07:08:13,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-02 07:08:13,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-02 07:08:13,240 INFO L87 Difference]: Start difference. First operand 38 states and 48 transitions. Second operand 6 states. [2018-12-02 07:08:16,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 07:08:16,321 INFO L93 Difference]: Finished difference Result 52 states and 61 transitions. [2018-12-02 07:08:16,436 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-02 07:08:16,436 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2018-12-02 07:08:16,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 07:08:16,438 INFO L225 Difference]: With dead ends: 52 [2018-12-02 07:08:16,438 INFO L226 Difference]: Without dead ends: 42 [2018-12-02 07:08:16,439 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-12-02 07:08:16,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-12-02 07:08:16,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 38. [2018-12-02 07:08:16,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-12-02 07:08:16,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 47 transitions. [2018-12-02 07:08:16,446 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 47 transitions. Word has length 21 [2018-12-02 07:08:16,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 07:08:16,447 INFO L480 AbstractCegarLoop]: Abstraction has 38 states and 47 transitions. [2018-12-02 07:08:16,447 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-02 07:08:16,447 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 47 transitions. [2018-12-02 07:08:16,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-02 07:08:16,448 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 07:08:16,448 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 07:08:16,448 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 07:08:16,449 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 07:08:16,449 INFO L82 PathProgramCache]: Analyzing trace with hash -576214872, now seen corresponding path program 1 times [2018-12-02 07:08:16,449 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-02 07:08:16,449 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9c94885e-4465-43dc-b625-873efec38dc9/bin-2019/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-12-02 07:08:16,453 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 07:08:16,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 07:08:16,651 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 07:08:18,208 WARN L180 SmtUtils]: Spent 682.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-12-02 07:08:18,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 07:08:18,347 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 07:08:18,356 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 07:08:18,356 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-12-02 07:08:18,357 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-12-02 07:08:18,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-12-02 07:08:18,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2018-12-02 07:08:18,357 INFO L87 Difference]: Start difference. First operand 38 states and 47 transitions. Second operand 10 states. [2018-12-02 07:08:19,360 WARN L180 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-12-02 07:08:31,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 07:08:31,812 INFO L93 Difference]: Finished difference Result 49 states and 58 transitions. [2018-12-02 07:08:31,812 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-12-02 07:08:31,813 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 22 [2018-12-02 07:08:31,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 07:08:31,813 INFO L225 Difference]: With dead ends: 49 [2018-12-02 07:08:31,813 INFO L226 Difference]: Without dead ends: 42 [2018-12-02 07:08:31,814 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2018-12-02 07:08:31,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-12-02 07:08:31,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 38. [2018-12-02 07:08:31,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-12-02 07:08:31,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 46 transitions. [2018-12-02 07:08:31,819 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 46 transitions. Word has length 22 [2018-12-02 07:08:31,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 07:08:31,820 INFO L480 AbstractCegarLoop]: Abstraction has 38 states and 46 transitions. [2018-12-02 07:08:31,820 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-12-02 07:08:31,820 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 46 transitions. [2018-12-02 07:08:31,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-02 07:08:31,820 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 07:08:31,820 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 07:08:31,820 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 07:08:31,820 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 07:08:31,821 INFO L82 PathProgramCache]: Analyzing trace with hash -15952265, now seen corresponding path program 1 times [2018-12-02 07:08:31,821 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-02 07:08:31,821 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9c94885e-4465-43dc-b625-873efec38dc9/bin-2019/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-12-02 07:08:31,824 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 07:08:31,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 07:08:31,874 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 07:08:31,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 07:08:31,910 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 07:08:31,918 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 07:08:31,918 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-02 07:08:31,918 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-02 07:08:31,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-02 07:08:31,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-02 07:08:31,919 INFO L87 Difference]: Start difference. First operand 38 states and 46 transitions. Second operand 6 states. [2018-12-02 07:08:34,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 07:08:34,460 INFO L93 Difference]: Finished difference Result 42 states and 50 transitions. [2018-12-02 07:08:34,575 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-02 07:08:34,575 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 23 [2018-12-02 07:08:34,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 07:08:34,576 INFO L225 Difference]: With dead ends: 42 [2018-12-02 07:08:34,576 INFO L226 Difference]: Without dead ends: 0 [2018-12-02 07:08:34,576 INFO L631 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 [2018-12-02 07:08:34,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-02 07:08:34,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-02 07:08:34,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-02 07:08:34,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-02 07:08:34,577 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 23 [2018-12-02 07:08:34,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 07:08:34,577 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-02 07:08:34,577 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-02 07:08:34,577 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-02 07:08:34,578 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-02 07:08:34,581 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-02 07:08:34,743 INFO L448 ceAbstractionStarter]: For program point isnan_floatFINAL(line 111) no Hoare annotation was computed. [2018-12-02 07:08:34,744 INFO L451 ceAbstractionStarter]: At program point isnan_floatENTRY(line 111) the Hoare annotation is: true [2018-12-02 07:08:34,744 INFO L448 ceAbstractionStarter]: For program point isnan_floatEXIT(line 111) no Hoare annotation was computed. [2018-12-02 07:08:34,744 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-02 07:08:34,744 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-12-02 07:08:34,744 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-02 07:08:34,744 INFO L448 ceAbstractionStarter]: For program point L97(lines 97 101) no Hoare annotation was computed. [2018-12-02 07:08:34,744 INFO L448 ceAbstractionStarter]: For program point L52-1(lines 52 56) no Hoare annotation was computed. [2018-12-02 07:08:34,744 INFO L444 ceAbstractionStarter]: At program point L52-2(lines 52 56) the Hoare annotation is: (or (not (= ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53)) ~zero_log~0)) (and (exists ((__ieee754_logf_~ix~1 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) __ieee754_logf_~ix~1) ((_ extract 30 23) __ieee754_logf_~ix~1) ((_ extract 22 0) __ieee754_logf_~ix~1)) |__ieee754_logf_#in~x|) (not (bvslt __ieee754_logf_~ix~1 (_ bv0 32))))) (= (fp ((_ extract 31 31) __ieee754_logf_~ix~1) ((_ extract 30 23) __ieee754_logf_~ix~1) ((_ extract 22 0) __ieee754_logf_~ix~1)) |__ieee754_logf_#in~x|))) [2018-12-02 07:08:34,744 INFO L448 ceAbstractionStarter]: For program point L69(lines 69 76) no Hoare annotation was computed. [2018-12-02 07:08:34,744 INFO L448 ceAbstractionStarter]: For program point L36-1(lines 36 40) no Hoare annotation was computed. [2018-12-02 07:08:34,745 INFO L444 ceAbstractionStarter]: At program point L36-2(lines 36 40) the Hoare annotation is: (or (not (= ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53)) ~zero_log~0)) (= __ieee754_logf_~x |__ieee754_logf_#in~x|)) [2018-12-02 07:08:34,745 INFO L448 ceAbstractionStarter]: For program point L36-3(lines 36 40) no Hoare annotation was computed. [2018-12-02 07:08:34,745 INFO L448 ceAbstractionStarter]: For program point L61-1(lines 61 65) no Hoare annotation was computed. [2018-12-02 07:08:34,745 INFO L444 ceAbstractionStarter]: At program point L61-2(lines 61 65) the Hoare annotation is: (or (not (= ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53)) ~zero_log~0)) (exists ((__ieee754_logf_~ix~1 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) __ieee754_logf_~ix~1) ((_ extract 30 23) __ieee754_logf_~ix~1) ((_ extract 22 0) __ieee754_logf_~ix~1)) |__ieee754_logf_#in~x|) (not (bvslt __ieee754_logf_~ix~1 (_ bv0 32)))))) [2018-12-02 07:08:34,745 INFO L451 ceAbstractionStarter]: At program point __ieee754_logfENTRY(lines 32 108) the Hoare annotation is: true [2018-12-02 07:08:34,745 INFO L448 ceAbstractionStarter]: For program point L61-3(lines 61 65) no Hoare annotation was computed. [2018-12-02 07:08:34,745 INFO L448 ceAbstractionStarter]: For program point __ieee754_logfFINAL(lines 32 108) no Hoare annotation was computed. [2018-12-02 07:08:34,745 INFO L448 ceAbstractionStarter]: For program point L49(lines 49 57) no Hoare annotation was computed. [2018-12-02 07:08:34,745 INFO L448 ceAbstractionStarter]: For program point L49-1(lines 49 57) no Hoare annotation was computed. [2018-12-02 07:08:34,745 INFO L448 ceAbstractionStarter]: For program point L78(lines 78 83) no Hoare annotation was computed. [2018-12-02 07:08:34,745 INFO L448 ceAbstractionStarter]: For program point L45(lines 45 46) no Hoare annotation was computed. [2018-12-02 07:08:34,746 INFO L448 ceAbstractionStarter]: For program point L103(lines 103 106) no Hoare annotation was computed. [2018-12-02 07:08:34,746 INFO L448 ceAbstractionStarter]: For program point L70(lines 70 75) no Hoare annotation was computed. [2018-12-02 07:08:34,746 INFO L448 ceAbstractionStarter]: For program point L95(lines 95 107) no Hoare annotation was computed. [2018-12-02 07:08:34,746 INFO L448 ceAbstractionStarter]: For program point __ieee754_logfEXIT(lines 32 108) no Hoare annotation was computed. [2018-12-02 07:08:34,746 INFO L448 ceAbstractionStarter]: For program point L47(lines 47 48) no Hoare annotation was computed. [2018-12-02 07:08:34,746 INFO L448 ceAbstractionStarter]: For program point L43(lines 43 44) no Hoare annotation was computed. [2018-12-02 07:08:34,746 INFO L448 ceAbstractionStarter]: For program point L68(lines 68 84) no Hoare annotation was computed. [2018-12-02 07:08:34,746 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-02 07:08:34,746 INFO L444 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (= ~zero_log~0 ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53))) [2018-12-02 07:08:34,746 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-02 07:08:34,746 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-02 07:08:34,746 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 113 130) the Hoare annotation is: true [2018-12-02 07:08:34,746 INFO L448 ceAbstractionStarter]: For program point L125(line 125) no Hoare annotation was computed. [2018-12-02 07:08:34,746 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 113 130) no Hoare annotation was computed. [2018-12-02 07:08:34,747 INFO L444 ceAbstractionStarter]: At program point L124(line 124) the Hoare annotation is: (let ((.cse0 ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53)))) (or (not (= .cse0 ~zero_log~0)) (let ((.cse1 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24)))) (and (= main_~res~0 (fp.div roundNearestTiesToEven (fp.sub roundNearestTiesToEven .cse1 .cse1) .cse0)) (= main_~x~0 .cse1))))) [2018-12-02 07:08:34,747 INFO L448 ceAbstractionStarter]: For program point L124-1(lines 124 127) no Hoare annotation was computed. [2018-12-02 07:08:34,747 INFO L444 ceAbstractionStarter]: At program point L121(line 121) the Hoare annotation is: (or (not (= ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53)) ~zero_log~0)) (= main_~x~0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24)))) [2018-12-02 07:08:34,747 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 113 130) no Hoare annotation was computed. [2018-12-02 07:08:34,747 INFO L448 ceAbstractionStarter]: For program point L121-1(line 121) no Hoare annotation was computed. [2018-12-02 07:08:34,747 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 125) no Hoare annotation was computed. [2018-12-02 07:08:34,751 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-02 07:08:34,752 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-12-02 07:08:34,752 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-12-02 07:08:34,752 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-12-02 07:08:34,752 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-12-02 07:08:34,755 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-02 07:08:34,755 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-12-02 07:08:34,755 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-12-02 07:08:34,755 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-12-02 07:08:34,755 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-12-02 07:08:34,756 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-02 07:08:34,756 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-02 07:08:34,756 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-02 07:08:34,756 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-12-02 07:08:34,756 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-12-02 07:08:34,757 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-12-02 07:08:34,757 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-12-02 07:08:34,757 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-02 07:08:34,757 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-12-02 07:08:34,757 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-12-02 07:08:34,757 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-12-02 07:08:34,758 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-12-02 07:08:34,759 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 07:08:34 BoogieIcfgContainer [2018-12-02 07:08:34,759 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-02 07:08:34,759 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 07:08:34,760 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 07:08:34,760 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 07:08:34,760 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:08:12" (3/4) ... [2018-12-02 07:08:34,763 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-02 07:08:34,767 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_float [2018-12-02 07:08:34,767 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-02 07:08:34,767 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_logf [2018-12-02 07:08:34,768 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-02 07:08:34,771 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 29 nodes and edges [2018-12-02 07:08:34,771 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2018-12-02 07:08:34,771 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-02 07:08:34,771 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-02 07:08:34,787 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE()) == zero_log) || x == \old(x) [2018-12-02 07:08:34,787 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE()) == zero_log) || ((\exists __ieee754_logf_~ix~1 : bv32 :: ~fp~LONGDOUBLE(__ieee754_logf_~ix~1[31:31], __ieee754_logf_~ix~1[30:23], __ieee754_logf_~ix~1[22:0]) == \old(x) && !~bvslt32(__ieee754_logf_~ix~1, 0bv32)) && ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) == \old(x)) [2018-12-02 07:08:34,787 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE()) == zero_log) || (\exists __ieee754_logf_~ix~1 : bv32 :: ~fp~LONGDOUBLE(__ieee754_logf_~ix~1[31:31], __ieee754_logf_~ix~1[30:23], __ieee754_logf_~ix~1[22:0]) == \old(x) && !~bvslt32(__ieee754_logf_~ix~1, 0bv32)) [2018-12-02 07:08:34,802 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_9c94885e-4465-43dc-b625-873efec38dc9/bin-2019/utaipan/witness.graphml [2018-12-02 07:08:34,802 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 07:08:34,803 INFO L168 Benchmark]: Toolchain (without parser) took 34299.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 943.4 MB in the beginning and 928.9 MB in the end (delta: 14.4 MB). Peak memory consumption was 157.5 MB. Max. memory is 11.5 GB. [2018-12-02 07:08:34,804 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 07:08:34,804 INFO L168 Benchmark]: CACSL2BoogieTranslator took 199.83 ms. Allocated memory is still 1.0 GB. Free memory was 943.4 MB in the beginning and 927.3 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-12-02 07:08:34,804 INFO L168 Benchmark]: Boogie Procedure Inliner took 15.72 ms. Allocated memory is still 1.0 GB. Free memory is still 927.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 07:08:34,804 INFO L168 Benchmark]: Boogie Preprocessor took 53.36 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 927.3 MB in the beginning and 1.1 GB in the end (delta: -204.4 MB). Peak memory consumption was 14.0 MB. Max. memory is 11.5 GB. [2018-12-02 07:08:34,805 INFO L168 Benchmark]: RCFGBuilder took 11839.11 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: 37.4 MB). Peak memory consumption was 37.4 MB. Max. memory is 11.5 GB. [2018-12-02 07:08:34,805 INFO L168 Benchmark]: TraceAbstraction took 22145.17 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 928.9 MB in the end (delta: 165.3 MB). Peak memory consumption was 165.3 MB. Max. memory is 11.5 GB. [2018-12-02 07:08:34,805 INFO L168 Benchmark]: Witness Printer took 43.07 ms. Allocated memory is still 1.2 GB. Free memory is still 928.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 07:08:34,807 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 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 199.83 ms. Allocated memory is still 1.0 GB. Free memory was 943.4 MB in the beginning and 927.3 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 15.72 ms. Allocated memory is still 1.0 GB. Free memory is still 927.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 53.36 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 927.3 MB in the beginning and 1.1 GB in the end (delta: -204.4 MB). Peak memory consumption was 14.0 MB. Max. memory is 11.5 GB. * RCFGBuilder took 11839.11 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: 37.4 MB). Peak memory consumption was 37.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 22145.17 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 928.9 MB in the end (delta: 165.3 MB). Peak memory consumption was 165.3 MB. Max. memory is 11.5 GB. * Witness Printer took 43.07 ms. Allocated memory is still 1.2 GB. Free memory is still 928.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 125]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 61]: Loop Invariant [2018-12-02 07:08:34,810 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-02 07:08:34,810 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-12-02 07:08:34,810 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-12-02 07:08:34,810 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-12-02 07:08:34,810 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-12-02 07:08:34,810 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-02 07:08:34,811 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-12-02 07:08:34,811 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-12-02 07:08:34,811 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-12-02 07:08:34,811 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] Derived loop invariant: !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE()) == zero_log) || (\exists __ieee754_logf_~ix~1 : bv32 :: ~fp~LONGDOUBLE(__ieee754_logf_~ix~1[31:31], __ieee754_logf_~ix~1[30:23], __ieee754_logf_~ix~1[22:0]) == \old(x) && !~bvslt32(__ieee754_logf_~ix~1, 0bv32)) - InvariantResult [Line: 36]: Loop Invariant [2018-12-02 07:08:34,811 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-02 07:08:34,812 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE()) == zero_log) || x == \old(x) - InvariantResult [Line: 52]: Loop Invariant [2018-12-02 07:08:34,812 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-02 07:08:34,812 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-12-02 07:08:34,812 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-12-02 07:08:34,812 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-12-02 07:08:34,813 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-12-02 07:08:34,813 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-02 07:08:34,813 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-12-02 07:08:34,813 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-12-02 07:08:34,813 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] [2018-12-02 07:08:34,813 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_logf_~ix~1,QUANTIFIED] Derived loop invariant: !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE()) == zero_log) || ((\exists __ieee754_logf_~ix~1 : bv32 :: ~fp~LONGDOUBLE(__ieee754_logf_~ix~1[31:31], __ieee754_logf_~ix~1[30:23], __ieee754_logf_~ix~1[22:0]) == \old(x) && !~bvslt32(__ieee754_logf_~ix~1, 0bv32)) && ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) == \old(x)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 42 locations, 1 error locations. SAFE Result, 22.0s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 19.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 156 SDtfs, 110 SDslu, 428 SDs, 0 SdLazy, 179 SolverSat, 12 SolverUnsat, 6 SolverUnknown, 0 SolverNotchecked, 17.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 93 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 2.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 8 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 14 PreInvPairs, 19 NumberOfFragments, 130 HoareAnnotationTreeSize, 14 FomulaSimplifications, 45 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 61 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 86 NumberOfCodeBlocks, 86 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 82 ConstructedInterpolants, 5 QuantifiedInterpolants, 8636 SizeOfPredicates, 11 NumberOfNonLiveVariables, 346 ConjunctsInSsa, 27 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...