./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0250b_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_0bffb429-fb0b-4321-842b-98634052c7e4/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_0bffb429-fb0b-4321-842b-98634052c7e4/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_0bffb429-fb0b-4321-842b-98634052c7e4/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_0bffb429-fb0b-4321-842b-98634052c7e4/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0250b_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_0bffb429-fb0b-4321-842b-98634052c7e4/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_0bffb429-fb0b-4321-842b-98634052c7e4/bin-2019/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4dddb731074a9a249891d6adbc7c778d25efe28d ................................................................................................................................................................................................................................................................................................................... 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_0bffb429-fb0b-4321-842b-98634052c7e4/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_0bffb429-fb0b-4321-842b-98634052c7e4/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_0bffb429-fb0b-4321-842b-98634052c7e4/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_0bffb429-fb0b-4321-842b-98634052c7e4/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0250b_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_0bffb429-fb0b-4321-842b-98634052c7e4/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_0bffb429-fb0b-4321-842b-98634052c7e4/bin-2019/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4dddb731074a9a249891d6adbc7c778d25efe28d ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 02:35:39,439 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 02:35:39,440 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 02:35:39,446 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 02:35:39,447 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 02:35:39,447 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 02:35:39,448 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 02:35:39,449 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 02:35:39,449 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 02:35:39,450 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 02:35:39,450 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 02:35:39,450 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 02:35:39,451 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 02:35:39,451 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 02:35:39,452 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 02:35:39,452 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 02:35:39,452 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 02:35:39,453 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 02:35:39,454 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 02:35:39,455 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 02:35:39,455 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 02:35:39,456 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 02:35:39,457 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 02:35:39,457 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 02:35:39,457 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 02:35:39,458 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 02:35:39,458 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 02:35:39,458 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 02:35:39,459 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 02:35:39,459 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 02:35:39,459 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 02:35:39,460 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 02:35:39,460 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 02:35:39,460 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 02:35:39,460 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 02:35:39,461 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 02:35:39,461 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_0bffb429-fb0b-4321-842b-98634052c7e4/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-02 02:35:39,468 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 02:35:39,468 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 02:35:39,468 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 02:35:39,468 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-02 02:35:39,469 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-02 02:35:39,469 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-02 02:35:39,469 INFO L133 SettingsManager]: * Use SBE=true [2018-12-02 02:35:39,469 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 02:35:39,469 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 02:35:39,469 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 02:35:39,469 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 02:35:39,469 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 02:35:39,469 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 02:35:39,469 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 02:35:39,470 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 02:35:39,470 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 02:35:39,470 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 02:35:39,470 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-02 02:35:39,470 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 02:35:39,470 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 02:35:39,470 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 02:35:39,470 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 02:35:39,470 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-02 02:35:39,470 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 02:35:39,470 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 02:35:39,470 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 02:35:39,470 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 02:35:39,471 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-02 02:35:39,471 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 02:35:39,471 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-02 02:35:39,471 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_0bffb429-fb0b-4321-842b-98634052c7e4/bin-2019/uautomizer 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 -> Automizer 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 -> 4dddb731074a9a249891d6adbc7c778d25efe28d [2018-12-02 02:35:39,488 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 02:35:39,496 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 02:35:39,498 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 02:35:39,499 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 02:35:39,499 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 02:35:39,499 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_0bffb429-fb0b-4321-842b-98634052c7e4/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0250b_true-unreach-call.c [2018-12-02 02:35:39,536 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0bffb429-fb0b-4321-842b-98634052c7e4/bin-2019/uautomizer/data/af58cec1a/38268b6c5cff4f2b9871cb426065502a/FLAG9b3194b63 [2018-12-02 02:35:39,933 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 02:35:39,934 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_0bffb429-fb0b-4321-842b-98634052c7e4/sv-benchmarks/c/float-newlib/float_req_bl_0250b_true-unreach-call.c [2018-12-02 02:35:39,939 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0bffb429-fb0b-4321-842b-98634052c7e4/bin-2019/uautomizer/data/af58cec1a/38268b6c5cff4f2b9871cb426065502a/FLAG9b3194b63 [2018-12-02 02:35:39,947 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_0bffb429-fb0b-4321-842b-98634052c7e4/bin-2019/uautomizer/data/af58cec1a/38268b6c5cff4f2b9871cb426065502a [2018-12-02 02:35:39,948 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 02:35:39,949 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 02:35:39,949 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 02:35:39,950 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 02:35:39,951 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 02:35:39,952 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:35:39" (1/1) ... [2018-12-02 02:35:39,954 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74e1e261 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:35:39, skipping insertion in model container [2018-12-02 02:35:39,954 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:35:39" (1/1) ... [2018-12-02 02:35:39,960 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 02:35:39,977 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 02:35:40,097 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 02:35:40,100 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 02:35:40,162 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 02:35:40,181 INFO L195 MainTranslator]: Completed translation [2018-12-02 02:35:40,182 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:35:40 WrapperNode [2018-12-02 02:35:40,182 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 02:35:40,182 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 02:35:40,182 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 02:35:40,182 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 02:35:40,187 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:35:40" (1/1) ... [2018-12-02 02:35:40,195 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:35:40" (1/1) ... [2018-12-02 02:35:40,199 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 02:35:40,200 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 02:35:40,200 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 02:35:40,200 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 02:35:40,205 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:35:40" (1/1) ... [2018-12-02 02:35:40,206 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:35:40" (1/1) ... [2018-12-02 02:35:40,208 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:35:40" (1/1) ... [2018-12-02 02:35:40,208 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:35:40" (1/1) ... [2018-12-02 02:35:40,217 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:35:40" (1/1) ... [2018-12-02 02:35:40,222 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:35:40" (1/1) ... [2018-12-02 02:35:40,224 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:35:40" (1/1) ... [2018-12-02 02:35:40,225 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 02:35:40,226 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 02:35:40,226 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 02:35:40,226 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 02:35:40,226 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:35:40" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0bffb429-fb0b-4321-842b-98634052c7e4/bin-2019/uautomizer/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 02:35:40,257 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-02 02:35:40,257 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-02 02:35:40,257 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_asinf [2018-12-02 02:35:40,257 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_asinf [2018-12-02 02:35:40,257 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-12-02 02:35:40,257 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-12-02 02:35:40,257 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-12-02 02:35:40,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-02 02:35:40,258 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-02 02:35:40,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-02 02:35:40,258 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2018-12-02 02:35:40,258 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2018-12-02 02:35:40,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-12-02 02:35:40,258 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-02 02:35:40,258 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 02:35:40,258 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 02:35:40,258 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-02 02:35:40,258 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2018-12-02 02:35:40,258 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2018-12-02 02:35:40,258 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-02 02:35:40,513 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 02:35:40,513 INFO L280 CfgBuilder]: Removed 16 assue(true) statements. [2018-12-02 02:35:40,514 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:35:40 BoogieIcfgContainer [2018-12-02 02:35:40,514 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 02:35:40,514 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-02 02:35:40,514 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-02 02:35:40,516 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-02 02:35:40,516 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 02:35:39" (1/3) ... [2018-12-02 02:35:40,517 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c3e1574 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:35:40, skipping insertion in model container [2018-12-02 02:35:40,517 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:35:40" (2/3) ... [2018-12-02 02:35:40,517 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c3e1574 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:35:40, skipping insertion in model container [2018-12-02 02:35:40,517 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:35:40" (3/3) ... [2018-12-02 02:35:40,518 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0250b_true-unreach-call.c [2018-12-02 02:35:40,526 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-02 02:35:40,532 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-02 02:35:40,546 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-02 02:35:40,568 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-02 02:35:40,568 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-02 02:35:40,568 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-02 02:35:40,568 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-02 02:35:40,568 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 02:35:40,568 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 02:35:40,568 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-02 02:35:40,569 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 02:35:40,569 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-02 02:35:40,579 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states. [2018-12-02 02:35:40,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-02 02:35:40,583 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 02:35:40,583 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 02:35:40,584 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 02:35:40,587 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 02:35:40,587 INFO L82 PathProgramCache]: Analyzing trace with hash 257035693, now seen corresponding path program 1 times [2018-12-02 02:35:40,588 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 02:35:40,589 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 02:35:40,616 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 02:35:40,616 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 02:35:40,616 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 02:35:40,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 02:35:40,685 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 02:35:40,686 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 02:35:40,686 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-02 02:35:40,688 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-02 02:35:40,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-02 02:35:40,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-02 02:35:40,697 INFO L87 Difference]: Start difference. First operand 76 states. Second operand 2 states. [2018-12-02 02:35:40,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 02:35:40,713 INFO L93 Difference]: Finished difference Result 144 states and 214 transitions. [2018-12-02 02:35:40,714 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-02 02:35:40,714 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 21 [2018-12-02 02:35:40,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 02:35:40,720 INFO L225 Difference]: With dead ends: 144 [2018-12-02 02:35:40,720 INFO L226 Difference]: Without dead ends: 72 [2018-12-02 02:35:40,722 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 02:35:40,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2018-12-02 02:35:40,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2018-12-02 02:35:40,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2018-12-02 02:35:40,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 89 transitions. [2018-12-02 02:35:40,745 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 89 transitions. Word has length 21 [2018-12-02 02:35:40,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 02:35:40,746 INFO L480 AbstractCegarLoop]: Abstraction has 72 states and 89 transitions. [2018-12-02 02:35:40,746 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-02 02:35:40,746 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 89 transitions. [2018-12-02 02:35:40,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-02 02:35:40,747 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 02:35:40,747 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 02:35:40,747 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 02:35:40,747 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 02:35:40,748 INFO L82 PathProgramCache]: Analyzing trace with hash -225488588, now seen corresponding path program 1 times [2018-12-02 02:35:40,748 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-02 02:35:40,748 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-02 02:35:40,749 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 02:35:40,749 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 02:35:40,749 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 02:35:40,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 02:35:40,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 02:35:40,803 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-02 02:35:40,828 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 02:35:40 BoogieIcfgContainer [2018-12-02 02:35:40,828 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-02 02:35:40,828 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 02:35:40,828 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 02:35:40,828 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 02:35:40,829 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:35:40" (3/4) ... [2018-12-02 02:35:40,831 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-02 02:35:40,831 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 02:35:40,832 INFO L168 Benchmark]: Toolchain (without parser) took 883.11 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 954.4 MB in the beginning and 1.1 GB in the end (delta: -99.3 MB). Peak memory consumption was 41.7 MB. Max. memory is 11.5 GB. [2018-12-02 02:35:40,833 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 02:35:40,833 INFO L168 Benchmark]: CACSL2BoogieTranslator took 232.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 954.4 MB in the beginning and 1.1 GB in the end (delta: -181.6 MB). Peak memory consumption was 26.9 MB. Max. memory is 11.5 GB. [2018-12-02 02:35:40,833 INFO L168 Benchmark]: Boogie Procedure Inliner took 16.99 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 02:35:40,833 INFO L168 Benchmark]: Boogie Preprocessor took 25.75 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 02:35:40,834 INFO L168 Benchmark]: RCFGBuilder took 288.14 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 35.0 MB). Peak memory consumption was 35.0 MB. Max. memory is 11.5 GB. [2018-12-02 02:35:40,834 INFO L168 Benchmark]: TraceAbstraction took 313.74 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: 40.6 MB). Peak memory consumption was 40.6 MB. Max. memory is 11.5 GB. [2018-12-02 02:35:40,834 INFO L168 Benchmark]: Witness Printer took 3.08 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 02:35:40,836 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 232.56 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 954.4 MB in the beginning and 1.1 GB in the end (delta: -181.6 MB). Peak memory consumption was 26.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 16.99 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 25.75 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 288.14 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 35.0 MB). Peak memory consumption was 35.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 313.74 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: 40.6 MB). Peak memory consumption was 40.6 MB. Max. memory is 11.5 GB. * Witness Printer took 3.08 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. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 233]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 58, overapproximation of someUnaryDOUBLEoperation at line 147, overapproximation of bitwiseAnd at line 161, overapproximation of someUnaryFLOAToperation at line 145, overapproximation of someBinaryArithmeticFLOAToperation at line 164. Possible FailurePath: [L12] static const float huge_floor = 1.0e30; [L60] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; [L143-L151] static const float one_asin = 1.0000000000e+00, huge_asin = 1.000e+30, pio2_hi_asin = 1.57079637050628662109375f, pio2_lo_asin = -4.37113900018624283e-8f, pio4_hi_asin = 0.785398185253143310546875f, pS0_asin = 1.6666667163e-01, pS1_asin = -3.2556581497e-01, pS2_asin = 2.0121252537e-01, pS3_asin = -4.0055535734e-02, pS4_asin = 7.9153501429e-04, pS5_asin = 3.4793309169e-05, qS1_asin = -2.4033949375e+00, qS2_asin = 2.0209457874e+00, qS3_asin = -6.8828397989e-01, qS4_asin = 7.7038154006e-02; VAL [\old(huge_asin)=6442450968, \old(huge_floor)=6442450957, \old(one_asin)=6442450960, \old(one_sqrt)=6442450958, \old(pio2_hi_asin)=6442450959, \old(pio2_lo_asin)=6442450952, \old(pio4_hi_asin)=6442450961, \old(pS0_asin)=6442450966, \old(pS1_asin)=6442450962, \old(pS2_asin)=6442450946, \old(pS3_asin)=6442450965, \old(pS4_asin)=6442450954, \old(pS5_asin)=6442450951, \old(qS1_asin)=6442450969, \old(qS2_asin)=6442450955, \old(qS3_asin)=6442450945, \old(qS4_asin)=6442450967, \old(tiny_sqrt)=6442450953, huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L228] float x = -1.0f / 0.0f; VAL [huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L229] CALL, EXPR __ieee754_asinf(x) VAL [\old(x)=6442450963, huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L154] float t, w, p, q, c, r, s; [L155] __int32_t hx, ix; VAL [\old(x)=6442450963, huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=6442450963] [L157] ieee_float_shape_type gf_u; [L158] gf_u.value = (x) [L159] EXPR gf_u.word [L159] (hx) = gf_u.word [L161] ix = hx & 0x7fffffff VAL [\old(x)=6442450963, huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, hx=-2147483648, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=6442450963] [L162] COND TRUE ix == 0x3f800000 [L164] return x * pio2_hi_asin + x * pio2_lo_asin; VAL [\old(x)=6442450963, huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, hx=-2147483648, ix=1065353216, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=6442450963] [L229] RET, EXPR __ieee754_asinf(x) VAL [__ieee754_asinf(x)=6442450949, huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=6442450963] [L229] float res = __ieee754_asinf(x); [L232] CALL, EXPR isnan_float(res) VAL [\old(x)=6442450949, huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L58] return x != x; VAL [\old(x)=6442450949, \result=0, huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=6442450949] [L232] RET, EXPR isnan_float(res) VAL [huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, isnan_float(res)=0, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, res=6442450949, tiny_sqrt=1/1000000000000000000000000000000, x=6442450963] [L232] COND TRUE !isnan_float(res) [L233] __VERIFIER_error() VAL [huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, res=6442450949, tiny_sqrt=1/1000000000000000000000000000000, x=6442450963] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 76 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 93 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=76occurred 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 02:35:42,222 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 02:35:42,223 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 02:35:42,229 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 02:35:42,229 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 02:35:42,230 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 02:35:42,230 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 02:35:42,231 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 02:35:42,232 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 02:35:42,232 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 02:35:42,233 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 02:35:42,233 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 02:35:42,233 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 02:35:42,234 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 02:35:42,234 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 02:35:42,235 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 02:35:42,235 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 02:35:42,236 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 02:35:42,237 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 02:35:42,238 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 02:35:42,238 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 02:35:42,239 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 02:35:42,241 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 02:35:42,241 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 02:35:42,241 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 02:35:42,241 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 02:35:42,242 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 02:35:42,242 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 02:35:42,243 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 02:35:42,243 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 02:35:42,243 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 02:35:42,244 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 02:35:42,244 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 02:35:42,244 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 02:35:42,244 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 02:35:42,245 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 02:35:42,245 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_0bffb429-fb0b-4321-842b-98634052c7e4/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-12-02 02:35:42,254 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 02:35:42,254 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 02:35:42,255 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 02:35:42,255 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-02 02:35:42,255 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-02 02:35:42,255 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-02 02:35:42,256 INFO L133 SettingsManager]: * Use SBE=true [2018-12-02 02:35:42,256 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 02:35:42,256 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 02:35:42,256 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 02:35:42,256 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 02:35:42,256 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 02:35:42,256 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 02:35:42,257 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 02:35:42,257 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-02 02:35:42,257 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-02 02:35:42,257 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 02:35:42,257 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 02:35:42,257 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-02 02:35:42,257 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 02:35:42,257 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 02:35:42,258 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 02:35:42,258 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 02:35:42,258 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-02 02:35:42,258 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 02:35:42,258 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 02:35:42,258 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 02:35:42,258 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 02:35:42,259 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-12-02 02:35:42,259 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 02:35:42,259 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-02 02:35:42,259 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-02 02:35:42,259 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_0bffb429-fb0b-4321-842b-98634052c7e4/bin-2019/uautomizer 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 -> Automizer 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 -> 4dddb731074a9a249891d6adbc7c778d25efe28d [2018-12-02 02:35:42,283 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 02:35:42,291 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 02:35:42,294 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 02:35:42,295 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 02:35:42,295 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 02:35:42,295 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_0bffb429-fb0b-4321-842b-98634052c7e4/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0250b_true-unreach-call.c [2018-12-02 02:35:42,332 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0bffb429-fb0b-4321-842b-98634052c7e4/bin-2019/uautomizer/data/cd461538d/0347614ba6954f1085a9bf594fdafe1f/FLAG574a6bba5 [2018-12-02 02:35:42,716 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 02:35:42,717 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_0bffb429-fb0b-4321-842b-98634052c7e4/sv-benchmarks/c/float-newlib/float_req_bl_0250b_true-unreach-call.c [2018-12-02 02:35:42,721 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0bffb429-fb0b-4321-842b-98634052c7e4/bin-2019/uautomizer/data/cd461538d/0347614ba6954f1085a9bf594fdafe1f/FLAG574a6bba5 [2018-12-02 02:35:42,729 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_0bffb429-fb0b-4321-842b-98634052c7e4/bin-2019/uautomizer/data/cd461538d/0347614ba6954f1085a9bf594fdafe1f [2018-12-02 02:35:42,730 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 02:35:42,731 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 02:35:42,732 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 02:35:42,732 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 02:35:42,734 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 02:35:42,734 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:35:42" (1/1) ... [2018-12-02 02:35:42,736 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a12c072 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:35:42, skipping insertion in model container [2018-12-02 02:35:42,736 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:35:42" (1/1) ... [2018-12-02 02:35:42,740 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 02:35:42,754 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 02:35:42,874 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 02:35:42,878 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 02:35:42,911 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 02:35:42,928 INFO L195 MainTranslator]: Completed translation [2018-12-02 02:35:42,928 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:35:42 WrapperNode [2018-12-02 02:35:42,928 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 02:35:42,929 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 02:35:42,929 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 02:35:42,929 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 02:35:42,934 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:35:42" (1/1) ... [2018-12-02 02:35:42,942 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:35:42" (1/1) ... [2018-12-02 02:35:42,984 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 02:35:42,985 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 02:35:42,985 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 02:35:42,985 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 02:35:42,991 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:35:42" (1/1) ... [2018-12-02 02:35:42,991 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:35:42" (1/1) ... [2018-12-02 02:35:42,994 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:35:42" (1/1) ... [2018-12-02 02:35:42,994 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:35:42" (1/1) ... [2018-12-02 02:35:43,004 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:35:42" (1/1) ... [2018-12-02 02:35:43,009 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:35:42" (1/1) ... [2018-12-02 02:35:43,010 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:35:42" (1/1) ... [2018-12-02 02:35:43,012 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 02:35:43,012 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 02:35:43,012 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 02:35:43,012 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 02:35:43,013 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:35:42" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0bffb429-fb0b-4321-842b-98634052c7e4/bin-2019/uautomizer/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 02:35:43,042 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-02 02:35:43,043 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-02 02:35:43,043 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_asinf [2018-12-02 02:35:43,043 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_asinf [2018-12-02 02:35:43,043 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-12-02 02:35:43,043 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-12-02 02:35:43,043 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-12-02 02:35:43,043 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-02 02:35:43,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-02 02:35:43,043 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2018-12-02 02:35:43,043 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2018-12-02 02:35:43,043 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-02 02:35:43,044 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-12-02 02:35:43,044 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 02:35:43,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 02:35:43,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-12-02 02:35:43,044 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2018-12-02 02:35:43,044 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2018-12-02 02:35:43,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-12-02 02:35:43,044 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-02 02:35:43,166 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 02:35:52,055 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 02:35:52,090 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 02:35:52,655 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 02:35:52,659 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 02:35:52,659 INFO L280 CfgBuilder]: Removed 16 assue(true) statements. [2018-12-02 02:35:52,660 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:35:52 BoogieIcfgContainer [2018-12-02 02:35:52,660 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 02:35:52,660 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-02 02:35:52,660 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-02 02:35:52,662 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-02 02:35:52,662 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 02:35:42" (1/3) ... [2018-12-02 02:35:52,663 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b0907b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:35:52, skipping insertion in model container [2018-12-02 02:35:52,663 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:35:42" (2/3) ... [2018-12-02 02:35:52,663 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b0907b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:35:52, skipping insertion in model container [2018-12-02 02:35:52,663 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:35:52" (3/3) ... [2018-12-02 02:35:52,664 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0250b_true-unreach-call.c [2018-12-02 02:35:52,670 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-02 02:35:52,674 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-02 02:35:52,683 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-02 02:35:52,700 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-02 02:35:52,701 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-02 02:35:52,701 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-02 02:35:52,701 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-02 02:35:52,701 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 02:35:52,701 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 02:35:52,701 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-02 02:35:52,702 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 02:35:52,702 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-02 02:35:52,712 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states. [2018-12-02 02:35:52,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-12-02 02:35:52,715 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 02:35:52,716 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 02:35:52,718 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 02:35:52,721 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 02:35:52,721 INFO L82 PathProgramCache]: Analyzing trace with hash 1204794971, now seen corresponding path program 1 times [2018-12-02 02:35:52,723 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-02 02:35:52,724 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0bffb429-fb0b-4321-842b-98634052c7e4/bin-2019/uautomizer/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 02:35:52,728 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 02:35:52,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 02:35:52,908 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 02:35:52,919 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 02:35:52,919 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 02:35:52,934 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 02:35:52,934 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-02 02:35:52,936 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-02 02:35:52,943 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-02 02:35:52,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-02 02:35:52,945 INFO L87 Difference]: Start difference. First operand 75 states. Second operand 2 states. [2018-12-02 02:35:52,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 02:35:52,962 INFO L93 Difference]: Finished difference Result 142 states and 212 transitions. [2018-12-02 02:35:52,962 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-02 02:35:52,963 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 20 [2018-12-02 02:35:52,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 02:35:52,970 INFO L225 Difference]: With dead ends: 142 [2018-12-02 02:35:52,970 INFO L226 Difference]: Without dead ends: 71 [2018-12-02 02:35:52,972 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 02:35:52,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2018-12-02 02:35:52,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2018-12-02 02:35:52,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2018-12-02 02:35:52,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 88 transitions. [2018-12-02 02:35:52,998 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 88 transitions. Word has length 20 [2018-12-02 02:35:52,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 02:35:52,998 INFO L480 AbstractCegarLoop]: Abstraction has 71 states and 88 transitions. [2018-12-02 02:35:52,998 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-02 02:35:52,998 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 88 transitions. [2018-12-02 02:35:52,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-02 02:35:52,999 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 02:35:52,999 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 02:35:52,999 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 02:35:52,999 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 02:35:53,000 INFO L82 PathProgramCache]: Analyzing trace with hash -624565231, now seen corresponding path program 1 times [2018-12-02 02:35:53,000 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-02 02:35:53,000 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0bffb429-fb0b-4321-842b-98634052c7e4/bin-2019/uautomizer/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 02:35:53,003 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 02:35:53,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 02:35:53,172 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 02:35:53,256 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 02:35:53,256 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 02:35:53,265 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 02:35:53,265 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-02 02:35:53,266 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-02 02:35:53,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-02 02:35:53,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-02 02:35:53,267 INFO L87 Difference]: Start difference. First operand 71 states and 88 transitions. Second operand 7 states. [2018-12-02 02:35:59,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 02:35:59,230 INFO L93 Difference]: Finished difference Result 84 states and 101 transitions. [2018-12-02 02:35:59,230 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-02 02:35:59,230 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2018-12-02 02:35:59,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 02:35:59,232 INFO L225 Difference]: With dead ends: 84 [2018-12-02 02:35:59,232 INFO L226 Difference]: Without dead ends: 74 [2018-12-02 02:35:59,233 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-12-02 02:35:59,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2018-12-02 02:35:59,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 71. [2018-12-02 02:35:59,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2018-12-02 02:35:59,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 87 transitions. [2018-12-02 02:35:59,239 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 87 transitions. Word has length 21 [2018-12-02 02:35:59,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 02:35:59,240 INFO L480 AbstractCegarLoop]: Abstraction has 71 states and 87 transitions. [2018-12-02 02:35:59,240 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-02 02:35:59,240 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 87 transitions. [2018-12-02 02:35:59,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-02 02:35:59,240 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 02:35:59,240 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 02:35:59,240 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 02:35:59,241 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 02:35:59,241 INFO L82 PathProgramCache]: Analyzing trace with hash 2002478333, now seen corresponding path program 1 times [2018-12-02 02:35:59,241 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-02 02:35:59,241 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0bffb429-fb0b-4321-842b-98634052c7e4/bin-2019/uautomizer/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 02:35:59,244 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 02:35:59,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 02:35:59,436 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 02:36:01,247 WARN L180 SmtUtils]: Spent 395.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2018-12-02 02:36:03,157 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 02:36:03,157 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 02:36:03,166 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 02:36:03,166 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-12-02 02:36:03,167 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-02 02:36:03,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-02 02:36:03,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-12-02 02:36:03,167 INFO L87 Difference]: Start difference. First operand 71 states and 87 transitions. Second operand 9 states. [2018-12-02 02:36:06,386 WARN L180 SmtUtils]: Spent 1.30 s on a formula simplification that was a NOOP. DAG size: 9 [2018-12-02 02:36:12,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 02:36:12,712 INFO L93 Difference]: Finished difference Result 80 states and 96 transitions. [2018-12-02 02:36:12,712 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-02 02:36:12,712 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2018-12-02 02:36:12,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 02:36:12,713 INFO L225 Difference]: With dead ends: 80 [2018-12-02 02:36:12,713 INFO L226 Difference]: Without dead ends: 73 [2018-12-02 02:36:12,713 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-12-02 02:36:12,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2018-12-02 02:36:12,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 71. [2018-12-02 02:36:12,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2018-12-02 02:36:12,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 86 transitions. [2018-12-02 02:36:12,721 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 86 transitions. Word has length 22 [2018-12-02 02:36:12,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 02:36:12,721 INFO L480 AbstractCegarLoop]: Abstraction has 71 states and 86 transitions. [2018-12-02 02:36:12,721 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-02 02:36:12,721 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 86 transitions. [2018-12-02 02:36:12,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-02 02:36:12,722 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 02:36:12,722 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 02:36:12,722 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 02:36:12,722 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 02:36:12,722 INFO L82 PathProgramCache]: Analyzing trace with hash 1628950099, now seen corresponding path program 1 times [2018-12-02 02:36:12,722 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-02 02:36:12,722 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0bffb429-fb0b-4321-842b-98634052c7e4/bin-2019/uautomizer/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 02:36:12,725 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 02:36:13,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 02:36:13,668 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 02:36:13,755 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 02:36:13,755 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 02:36:13,776 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 02:36:13,776 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-02 02:36:13,777 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-02 02:36:13,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-02 02:36:13,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-02 02:36:13,777 INFO L87 Difference]: Start difference. First operand 71 states and 86 transitions. Second operand 7 states. [2018-12-02 02:36:18,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 02:36:18,825 INFO L93 Difference]: Finished difference Result 84 states and 99 transitions. [2018-12-02 02:36:18,825 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-02 02:36:18,826 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 24 [2018-12-02 02:36:18,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 02:36:18,826 INFO L225 Difference]: With dead ends: 84 [2018-12-02 02:36:18,826 INFO L226 Difference]: Without dead ends: 66 [2018-12-02 02:36:18,827 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-12-02 02:36:18,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2018-12-02 02:36:18,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2018-12-02 02:36:18,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2018-12-02 02:36:18,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 78 transitions. [2018-12-02 02:36:18,831 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 78 transitions. Word has length 24 [2018-12-02 02:36:18,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 02:36:18,831 INFO L480 AbstractCegarLoop]: Abstraction has 66 states and 78 transitions. [2018-12-02 02:36:18,831 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-02 02:36:18,831 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 78 transitions. [2018-12-02 02:36:18,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-12-02 02:36:18,832 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 02:36:18,832 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 02:36:18,832 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 02:36:18,832 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 02:36:18,833 INFO L82 PathProgramCache]: Analyzing trace with hash 1429916512, now seen corresponding path program 1 times [2018-12-02 02:36:18,833 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-02 02:36:18,833 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0bffb429-fb0b-4321-842b-98634052c7e4/bin-2019/uautomizer/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-12-02 02:36:18,836 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 02:36:19,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 02:36:19,926 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 02:36:20,012 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 02:36:20,012 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 02:36:20,030 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 02:36:20,031 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-02 02:36:20,031 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-02 02:36:20,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-02 02:36:20,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-02 02:36:20,031 INFO L87 Difference]: Start difference. First operand 66 states and 78 transitions. Second operand 7 states. [2018-12-02 02:36:22,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 02:36:22,470 INFO L93 Difference]: Finished difference Result 66 states and 78 transitions. [2018-12-02 02:36:22,471 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-02 02:36:22,471 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 44 [2018-12-02 02:36:22,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 02:36:22,471 INFO L225 Difference]: With dead ends: 66 [2018-12-02 02:36:22,472 INFO L226 Difference]: Without dead ends: 0 [2018-12-02 02:36:22,472 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-12-02 02:36:22,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-02 02:36:22,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-02 02:36:22,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-02 02:36:22,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-02 02:36:22,472 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 44 [2018-12-02 02:36:22,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 02:36:22,473 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-02 02:36:22,473 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-02 02:36:22,473 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-02 02:36:22,473 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-02 02:36:22,476 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-02 02:36:22,627 INFO L448 ceAbstractionStarter]: For program point isnan_floatFINAL(line 58) no Hoare annotation was computed. [2018-12-02 02:36:22,627 INFO L451 ceAbstractionStarter]: At program point isnan_floatENTRY(line 58) the Hoare annotation is: true [2018-12-02 02:36:22,627 INFO L448 ceAbstractionStarter]: For program point isnan_floatEXIT(line 58) no Hoare annotation was computed. [2018-12-02 02:36:22,627 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-02 02:36:22,628 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-12-02 02:36:22,628 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-02 02:36:22,628 INFO L448 ceAbstractionStarter]: For program point L130-1(lines 130 134) no Hoare annotation was computed. [2018-12-02 02:36:22,628 INFO L451 ceAbstractionStarter]: At program point L130-2(lines 130 134) the Hoare annotation is: true [2018-12-02 02:36:22,628 INFO L448 ceAbstractionStarter]: For program point fabs_floatFINAL(lines 128 141) no Hoare annotation was computed. [2018-12-02 02:36:22,628 INFO L448 ceAbstractionStarter]: For program point fabs_floatEXIT(lines 128 141) no Hoare annotation was computed. [2018-12-02 02:36:22,628 INFO L451 ceAbstractionStarter]: At program point fabs_floatENTRY(lines 128 141) the Hoare annotation is: true [2018-12-02 02:36:22,628 INFO L448 ceAbstractionStarter]: For program point L135(lines 135 139) no Hoare annotation was computed. [2018-12-02 02:36:22,628 INFO L448 ceAbstractionStarter]: For program point L135-1(lines 128 141) no Hoare annotation was computed. [2018-12-02 02:36:22,628 INFO L448 ceAbstractionStarter]: For program point L135-2(lines 135 139) no Hoare annotation was computed. [2018-12-02 02:36:22,628 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-02 02:36:22,628 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-12-02 02:36:22,628 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-02 02:36:22,628 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-02 02:36:22,629 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 221 238) the Hoare annotation is: true [2018-12-02 02:36:22,629 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 221 238) no Hoare annotation was computed. [2018-12-02 02:36:22,629 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 233) no Hoare annotation was computed. [2018-12-02 02:36:22,629 INFO L448 ceAbstractionStarter]: For program point L233(line 233) no Hoare annotation was computed. [2018-12-02 02:36:22,629 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 221 238) no Hoare annotation was computed. [2018-12-02 02:36:22,629 INFO L444 ceAbstractionStarter]: At program point L232(line 232) the Hoare annotation is: (let ((.cse1 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24)))) (and (= main_~res~0 (let ((.cse0 (fp.sub roundNearestTiesToEven .cse1 .cse1))) (fp.div roundNearestTiesToEven .cse0 .cse0))) (= main_~x~0 .cse1))) [2018-12-02 02:36:22,629 INFO L448 ceAbstractionStarter]: For program point L232-1(lines 232 235) no Hoare annotation was computed. [2018-12-02 02:36:22,629 INFO L444 ceAbstractionStarter]: At program point L229(line 229) the Hoare annotation is: (= main_~x~0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24))) [2018-12-02 02:36:22,629 INFO L448 ceAbstractionStarter]: For program point L229-1(line 229) no Hoare annotation was computed. [2018-12-02 02:36:22,629 INFO L444 ceAbstractionStarter]: At program point L192(line 192) the Hoare annotation is: (and (= |__ieee754_asinf_#in~x| __ieee754_asinf_~x) (exists ((__ieee754_asinf_~hx~1 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) __ieee754_asinf_~hx~1) ((_ extract 30 23) __ieee754_asinf_~hx~1) ((_ extract 22 0) __ieee754_asinf_~hx~1)) |__ieee754_asinf_#in~x|) (= (bvand (_ bv2147483647 32) __ieee754_asinf_~hx~1) __ieee754_asinf_~ix~3))) (= (fp ((_ extract 31 31) __ieee754_asinf_~hx~1) ((_ extract 30 23) __ieee754_asinf_~hx~1) ((_ extract 22 0) __ieee754_asinf_~hx~1)) |__ieee754_asinf_#in~x|) (exists ((__ieee754_asinf_~hx~1 (_ BitVec 32))) (and (not (bvsgt (bvand (_ bv2147483647 32) __ieee754_asinf_~hx~1) (_ bv1065353216 32))) (= (fp ((_ extract 31 31) __ieee754_asinf_~hx~1) ((_ extract 30 23) __ieee754_asinf_~hx~1) ((_ extract 22 0) __ieee754_asinf_~hx~1)) |__ieee754_asinf_#in~x|)))) [2018-12-02 02:36:22,630 INFO L448 ceAbstractionStarter]: For program point L192-1(line 192) no Hoare annotation was computed. [2018-12-02 02:36:22,630 INFO L448 ceAbstractionStarter]: For program point L184(line 184) no Hoare annotation was computed. [2018-12-02 02:36:22,630 INFO L448 ceAbstractionStarter]: For program point L168(lines 168 181) no Hoare annotation was computed. [2018-12-02 02:36:22,630 INFO L448 ceAbstractionStarter]: For program point L193(lines 193 214) no Hoare annotation was computed. [2018-12-02 02:36:22,630 INFO L448 ceAbstractionStarter]: For program point L193-2(lines 153 219) no Hoare annotation was computed. [2018-12-02 02:36:22,630 INFO L448 ceAbstractionStarter]: For program point L156-1(lines 156 160) no Hoare annotation was computed. [2018-12-02 02:36:22,630 INFO L444 ceAbstractionStarter]: At program point L156-2(lines 156 160) the Hoare annotation is: (= |__ieee754_asinf_#in~x| __ieee754_asinf_~x) [2018-12-02 02:36:22,630 INFO L448 ceAbstractionStarter]: For program point L156-3(lines 156 160) no Hoare annotation was computed. [2018-12-02 02:36:22,630 INFO L448 ceAbstractionStarter]: For program point L169(lines 169 170) no Hoare annotation was computed. [2018-12-02 02:36:22,630 INFO L448 ceAbstractionStarter]: For program point L165(lines 165 182) no Hoare annotation was computed. [2018-12-02 02:36:22,630 INFO L451 ceAbstractionStarter]: At program point __ieee754_asinfENTRY(lines 153 219) the Hoare annotation is: true [2018-12-02 02:36:22,630 INFO L448 ceAbstractionStarter]: For program point L199-1(lines 199 203) no Hoare annotation was computed. [2018-12-02 02:36:22,630 INFO L444 ceAbstractionStarter]: At program point L199-2(lines 199 203) the Hoare annotation is: (and (= |__ieee754_asinf_#in~x| __ieee754_asinf_~x) (exists ((__ieee754_asinf_~hx~1 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) __ieee754_asinf_~hx~1) ((_ extract 30 23) __ieee754_asinf_~hx~1) ((_ extract 22 0) __ieee754_asinf_~hx~1)) |__ieee754_asinf_#in~x|) (= (bvand (_ bv2147483647 32) __ieee754_asinf_~hx~1) __ieee754_asinf_~ix~3))) (= (fp ((_ extract 31 31) __ieee754_asinf_~hx~1) ((_ extract 30 23) __ieee754_asinf_~hx~1) ((_ extract 22 0) __ieee754_asinf_~hx~1)) |__ieee754_asinf_#in~x|) (exists ((__ieee754_asinf_~hx~1 (_ BitVec 32))) (and (not (bvsgt (bvand (_ bv2147483647 32) __ieee754_asinf_~hx~1) (_ bv1065353216 32))) (= (fp ((_ extract 31 31) __ieee754_asinf_~hx~1) ((_ extract 30 23) __ieee754_asinf_~hx~1) ((_ extract 22 0) __ieee754_asinf_~hx~1)) |__ieee754_asinf_#in~x|)))) [2018-12-02 02:36:22,630 INFO L448 ceAbstractionStarter]: For program point __ieee754_asinfFINAL(lines 153 219) no Hoare annotation was computed. [2018-12-02 02:36:22,631 INFO L448 ceAbstractionStarter]: For program point L162(lines 162 182) no Hoare annotation was computed. [2018-12-02 02:36:22,631 INFO L448 ceAbstractionStarter]: For program point __ieee754_asinfEXIT(lines 153 219) no Hoare annotation was computed. [2018-12-02 02:36:22,631 INFO L448 ceAbstractionStarter]: For program point L204(lines 204 208) no Hoare annotation was computed. [2018-12-02 02:36:22,631 INFO L448 ceAbstractionStarter]: For program point L204-1(lines 196 214) no Hoare annotation was computed. [2018-12-02 02:36:22,631 INFO L448 ceAbstractionStarter]: For program point L204-2(lines 204 208) no Hoare annotation was computed. [2018-12-02 02:36:22,631 INFO L448 ceAbstractionStarter]: For program point L167(lines 167 182) no Hoare annotation was computed. [2018-12-02 02:36:22,631 INFO L444 ceAbstractionStarter]: At program point L167-1(lines 167 182) the Hoare annotation is: (and (= |__ieee754_asinf_#in~x| __ieee754_asinf_~x) (exists ((__ieee754_asinf_~hx~1 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) __ieee754_asinf_~hx~1) ((_ extract 30 23) __ieee754_asinf_~hx~1) ((_ extract 22 0) __ieee754_asinf_~hx~1)) |__ieee754_asinf_#in~x|) (= (bvand (_ bv2147483647 32) __ieee754_asinf_~hx~1) __ieee754_asinf_~ix~3))) (= (fp ((_ extract 31 31) __ieee754_asinf_~hx~1) ((_ extract 30 23) __ieee754_asinf_~hx~1) ((_ extract 22 0) __ieee754_asinf_~hx~1)) |__ieee754_asinf_#in~x|) (exists ((__ieee754_asinf_~hx~1 (_ BitVec 32))) (and (not (bvsgt (bvand (_ bv2147483647 32) __ieee754_asinf_~hx~1) (_ bv1065353216 32))) (= (fp ((_ extract 31 31) __ieee754_asinf_~hx~1) ((_ extract 30 23) __ieee754_asinf_~hx~1) ((_ extract 22 0) __ieee754_asinf_~hx~1)) |__ieee754_asinf_#in~x|)))) [2018-12-02 02:36:22,631 INFO L448 ceAbstractionStarter]: For program point L77(lines 77 78) no Hoare annotation was computed. [2018-12-02 02:36:22,631 INFO L451 ceAbstractionStarter]: At program point L98-2(lines 98 107) the Hoare annotation is: true [2018-12-02 02:36:22,631 INFO L448 ceAbstractionStarter]: For program point L98-3(lines 62 127) no Hoare annotation was computed. [2018-12-02 02:36:22,631 INFO L448 ceAbstractionStarter]: For program point L90(lines 90 91) no Hoare annotation was computed. [2018-12-02 02:36:22,631 INFO L448 ceAbstractionStarter]: For program point L90-2(lines 90 91) no Hoare annotation was computed. [2018-12-02 02:36:22,631 INFO L451 ceAbstractionStarter]: At program point __ieee754_sqrtfENTRY(lines 62 127) the Hoare annotation is: true [2018-12-02 02:36:22,632 INFO L448 ceAbstractionStarter]: For program point L111(lines 111 117) no Hoare annotation was computed. [2018-12-02 02:36:22,632 INFO L448 ceAbstractionStarter]: For program point L74(lines 74 75) no Hoare annotation was computed. [2018-12-02 02:36:22,632 INFO L448 ceAbstractionStarter]: For program point __ieee754_sqrtfFINAL(lines 62 127) no Hoare annotation was computed. [2018-12-02 02:36:22,632 INFO L448 ceAbstractionStarter]: For program point __ieee754_sqrtfEXIT(lines 62 127) no Hoare annotation was computed. [2018-12-02 02:36:22,632 INFO L448 ceAbstractionStarter]: For program point L83(lines 83 87) no Hoare annotation was computed. [2018-12-02 02:36:22,632 INFO L448 ceAbstractionStarter]: For program point L83-2(lines 83 87) no Hoare annotation was computed. [2018-12-02 02:36:22,632 INFO L448 ceAbstractionStarter]: For program point L79(lines 79 80) no Hoare annotation was computed. [2018-12-02 02:36:22,632 INFO L448 ceAbstractionStarter]: For program point L100(lines 100 104) no Hoare annotation was computed. [2018-12-02 02:36:22,632 INFO L448 ceAbstractionStarter]: For program point L67-1(lines 67 71) no Hoare annotation was computed. [2018-12-02 02:36:22,632 INFO L448 ceAbstractionStarter]: For program point L100-2(lines 100 104) no Hoare annotation was computed. [2018-12-02 02:36:22,632 INFO L451 ceAbstractionStarter]: At program point L67-2(lines 67 71) the Hoare annotation is: true [2018-12-02 02:36:22,632 INFO L448 ceAbstractionStarter]: For program point L67-3(lines 67 71) no Hoare annotation was computed. [2018-12-02 02:36:22,632 INFO L448 ceAbstractionStarter]: For program point L121-1(lines 121 125) no Hoare annotation was computed. [2018-12-02 02:36:22,632 INFO L451 ceAbstractionStarter]: At program point L121-2(lines 121 125) the Hoare annotation is: true [2018-12-02 02:36:22,632 INFO L448 ceAbstractionStarter]: For program point L121-3(lines 121 125) no Hoare annotation was computed. [2018-12-02 02:36:22,632 INFO L448 ceAbstractionStarter]: For program point L84-2(lines 84 85) no Hoare annotation was computed. [2018-12-02 02:36:22,633 INFO L451 ceAbstractionStarter]: At program point L84-3(lines 84 85) the Hoare annotation is: true [2018-12-02 02:36:22,633 INFO L448 ceAbstractionStarter]: For program point L113(lines 113 116) no Hoare annotation was computed. [2018-12-02 02:36:22,633 INFO L448 ceAbstractionStarter]: For program point L84-4(lines 84 85) no Hoare annotation was computed. [2018-12-02 02:36:22,633 INFO L448 ceAbstractionStarter]: For program point L109(lines 109 118) no Hoare annotation was computed. [2018-12-02 02:36:22,637 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-02 02:36:22,638 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-02 02:36:22,638 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-02 02:36:22,638 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-02 02:36:22,638 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-02 02:36:22,638 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-02 02:36:22,638 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-02 02:36:22,638 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-02 02:36:22,642 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-02 02:36:22,642 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-02 02:36:22,642 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-02 02:36:22,642 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-02 02:36:22,642 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-02 02:36:22,642 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-02 02:36:22,642 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-02 02:36:22,642 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-02 02:36:22,644 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 02:36:22 BoogieIcfgContainer [2018-12-02 02:36:22,644 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-02 02:36:22,644 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 02:36:22,644 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 02:36:22,644 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 02:36:22,645 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:35:52" (3/4) ... [2018-12-02 02:36:22,647 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-02 02:36:22,651 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_float [2018-12-02 02:36:22,651 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-02 02:36:22,651 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure fabs_float [2018-12-02 02:36:22,651 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-02 02:36:22,651 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_asinf [2018-12-02 02:36:22,651 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_sqrtf [2018-12-02 02:36:22,654 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 43 nodes and edges [2018-12-02 02:36:22,655 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2018-12-02 02:36:22,655 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-12-02 02:36:22,655 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-02 02:36:22,670 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-12-02 02:36:22,671 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\old(x) == x && (\exists __ieee754_asinf_~hx~1 : bv32 :: ~fp~LONGDOUBLE(__ieee754_asinf_~hx~1[31:31], __ieee754_asinf_~hx~1[30:23], __ieee754_asinf_~hx~1[22:0]) == \old(x) && ~bvand32(2147483647bv32, __ieee754_asinf_~hx~1) == ix)) && ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == \old(x)) && (\exists __ieee754_asinf_~hx~1 : bv32 :: !~bvsgt32(~bvand32(2147483647bv32, __ieee754_asinf_~hx~1), 1065353216bv32) && ~fp~LONGDOUBLE(__ieee754_asinf_~hx~1[31:31], __ieee754_asinf_~hx~1[30:23], __ieee754_asinf_~hx~1[22:0]) == \old(x)) [2018-12-02 02:36:22,694 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_0bffb429-fb0b-4321-842b-98634052c7e4/bin-2019/uautomizer/witness.graphml [2018-12-02 02:36:22,694 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 02:36:22,695 INFO L168 Benchmark]: Toolchain (without parser) took 39963.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 944.7 MB in the beginning and 880.2 MB in the end (delta: 64.5 MB). Peak memory consumption was 215.0 MB. Max. memory is 11.5 GB. [2018-12-02 02:36:22,695 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 02:36:22,695 INFO L168 Benchmark]: CACSL2BoogieTranslator took 196.49 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 921.9 MB in the end (delta: 22.8 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. [2018-12-02 02:36:22,695 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 921.9 MB in the beginning and 1.1 GB in the end (delta: -223.1 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. [2018-12-02 02:36:22,696 INFO L168 Benchmark]: Boogie Preprocessor took 27.25 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2018-12-02 02:36:22,696 INFO L168 Benchmark]: RCFGBuilder took 9647.60 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 40.6 MB). Peak memory consumption was 40.6 MB. Max. memory is 11.5 GB. [2018-12-02 02:36:22,696 INFO L168 Benchmark]: TraceAbstraction took 29983.67 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 887.1 MB in the end (delta: 210.5 MB). Peak memory consumption was 210.5 MB. Max. memory is 11.5 GB. [2018-12-02 02:36:22,696 INFO L168 Benchmark]: Witness Printer took 50.06 ms. Allocated memory is still 1.2 GB. Free memory was 887.1 MB in the beginning and 880.2 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2018-12-02 02:36:22,697 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 196.49 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 921.9 MB in the end (delta: 22.8 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 55.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 921.9 MB in the beginning and 1.1 GB in the end (delta: -223.1 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 27.25 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * RCFGBuilder took 9647.60 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 40.6 MB). Peak memory consumption was 40.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 29983.67 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 887.1 MB in the end (delta: 210.5 MB). Peak memory consumption was 210.5 MB. Max. memory is 11.5 GB. * Witness Printer took 50.06 ms. Allocated memory is still 1.2 GB. Free memory was 887.1 MB in the beginning and 880.2 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 233]: 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: 98]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 130]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 121]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 84]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 199]: Loop Invariant [2018-12-02 02:36:22,700 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-02 02:36:22,700 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-02 02:36:22,700 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-02 02:36:22,700 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-02 02:36:22,700 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-02 02:36:22,700 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-02 02:36:22,700 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-02 02:36:22,701 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-02 02:36:22,701 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-02 02:36:22,701 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-02 02:36:22,701 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-02 02:36:22,701 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-02 02:36:22,701 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-02 02:36:22,701 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-02 02:36:22,701 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-02 02:36:22,701 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] Derived loop invariant: ((\old(x) == x && (\exists __ieee754_asinf_~hx~1 : bv32 :: ~fp~LONGDOUBLE(__ieee754_asinf_~hx~1[31:31], __ieee754_asinf_~hx~1[30:23], __ieee754_asinf_~hx~1[22:0]) == \old(x) && ~bvand32(2147483647bv32, __ieee754_asinf_~hx~1) == ix)) && ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == \old(x)) && (\exists __ieee754_asinf_~hx~1 : bv32 :: !~bvsgt32(~bvand32(2147483647bv32, __ieee754_asinf_~hx~1), 1065353216bv32) && ~fp~LONGDOUBLE(__ieee754_asinf_~hx~1[31:31], __ieee754_asinf_~hx~1[30:23], __ieee754_asinf_~hx~1[22:0]) == \old(x)) - InvariantResult [Line: 156]: Loop Invariant Derived loop invariant: \old(x) == x - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 75 locations, 1 error locations. SAFE Result, 29.9s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 23.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 380 SDtfs, 198 SDslu, 1429 SDs, 0 SdLazy, 186 SolverSat, 23 SolverUnsat, 6 SolverUnknown, 0 SolverNotchecked, 18.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 139 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 7.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=75occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 5 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 19 LocationsWithAnnotation, 30 PreInvPairs, 40 NumberOfFragments, 209 HoareAnnotationTreeSize, 30 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 19 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 2.3s SatisfiabilityAnalysisTime, 4.1s InterpolantComputationTime, 131 NumberOfCodeBlocks, 131 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 126 ConstructedInterpolants, 20 QuantifiedInterpolants, 19548 SizeOfPredicates, 16 NumberOfNonLiveVariables, 606 ConjunctsInSsa, 36 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...