./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0730c_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_d05f7f6f-ffab-4c2f-ae0a-0fcd8efca491/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_d05f7f6f-ffab-4c2f-ae0a-0fcd8efca491/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_d05f7f6f-ffab-4c2f-ae0a-0fcd8efca491/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_d05f7f6f-ffab-4c2f-ae0a-0fcd8efca491/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0730c_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_d05f7f6f-ffab-4c2f-ae0a-0fcd8efca491/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_d05f7f6f-ffab-4c2f-ae0a-0fcd8efca491/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2fdd6b263368afa8ce8882c7fab6c0f595a3666c .............................................................................................................................................................................................................................................................................................................. 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_d05f7f6f-ffab-4c2f-ae0a-0fcd8efca491/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_d05f7f6f-ffab-4c2f-ae0a-0fcd8efca491/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_d05f7f6f-ffab-4c2f-ae0a-0fcd8efca491/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_d05f7f6f-ffab-4c2f-ae0a-0fcd8efca491/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0730c_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_d05f7f6f-ffab-4c2f-ae0a-0fcd8efca491/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_d05f7f6f-ffab-4c2f-ae0a-0fcd8efca491/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2fdd6b263368afa8ce8882c7fab6c0f595a3666c .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-09 02:25:42,257 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 02:25:42,258 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 02:25:42,264 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 02:25:42,264 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 02:25:42,264 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 02:25:42,265 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 02:25:42,266 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 02:25:42,266 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 02:25:42,267 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 02:25:42,267 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 02:25:42,267 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 02:25:42,268 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 02:25:42,268 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 02:25:42,269 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 02:25:42,269 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 02:25:42,270 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 02:25:42,270 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 02:25:42,271 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 02:25:42,272 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 02:25:42,272 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 02:25:42,273 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 02:25:42,274 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 02:25:42,274 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 02:25:42,274 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 02:25:42,275 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 02:25:42,275 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 02:25:42,275 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 02:25:42,276 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 02:25:42,276 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 02:25:42,276 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 02:25:42,277 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 02:25:42,277 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 02:25:42,277 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 02:25:42,277 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 02:25:42,278 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 02:25:42,278 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_d05f7f6f-ffab-4c2f-ae0a-0fcd8efca491/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-09 02:25:42,285 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 02:25:42,285 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 02:25:42,285 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 02:25:42,286 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 02:25:42,286 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 02:25:42,286 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 02:25:42,286 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 02:25:42,286 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 02:25:42,286 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 02:25:42,286 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 02:25:42,286 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 02:25:42,286 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 02:25:42,286 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 02:25:42,287 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 02:25:42,287 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 02:25:42,287 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 02:25:42,287 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 02:25:42,287 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 02:25:42,287 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 02:25:42,287 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 02:25:42,287 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 02:25:42,287 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 02:25:42,288 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 02:25:42,288 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 02:25:42,288 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 02:25:42,288 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 02:25:42,288 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 02:25:42,288 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 02:25:42,288 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 02:25:42,288 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 02:25:42,288 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 02:25:42,288 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 02:25:42,288 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 02:25:42,288 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 02:25:42,289 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 02:25:42,289 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-09 02:25:42,289 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_d05f7f6f-ffab-4c2f-ae0a-0fcd8efca491/bin-2019/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2fdd6b263368afa8ce8882c7fab6c0f595a3666c [2018-12-09 02:25:42,306 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 02:25:42,312 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 02:25:42,314 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 02:25:42,315 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 02:25:42,315 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 02:25:42,316 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_d05f7f6f-ffab-4c2f-ae0a-0fcd8efca491/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0730c_true-unreach-call.c [2018-12-09 02:25:42,355 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_d05f7f6f-ffab-4c2f-ae0a-0fcd8efca491/bin-2019/utaipan/data/9bc4397c3/5f1acc3dc9f144e68b272dd7ceaf886a/FLAG0cbe2c247 [2018-12-09 02:25:42,671 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 02:25:42,671 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_d05f7f6f-ffab-4c2f-ae0a-0fcd8efca491/sv-benchmarks/c/float-newlib/float_req_bl_0730c_true-unreach-call.c [2018-12-09 02:25:42,676 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_d05f7f6f-ffab-4c2f-ae0a-0fcd8efca491/bin-2019/utaipan/data/9bc4397c3/5f1acc3dc9f144e68b272dd7ceaf886a/FLAG0cbe2c247 [2018-12-09 02:25:42,685 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_d05f7f6f-ffab-4c2f-ae0a-0fcd8efca491/bin-2019/utaipan/data/9bc4397c3/5f1acc3dc9f144e68b272dd7ceaf886a [2018-12-09 02:25:42,688 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 02:25:42,688 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 02:25:42,689 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 02:25:42,689 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 02:25:42,692 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 02:25:42,692 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 02:25:42" (1/1) ... [2018-12-09 02:25:42,694 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f49b694 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:25:42, skipping insertion in model container [2018-12-09 02:25:42,694 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 02:25:42" (1/1) ... [2018-12-09 02:25:42,698 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 02:25:42,711 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 02:25:42,817 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 02:25:42,820 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 02:25:42,837 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 02:25:42,878 INFO L195 MainTranslator]: Completed translation [2018-12-09 02:25:42,878 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:25:42 WrapperNode [2018-12-09 02:25:42,878 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 02:25:42,878 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 02:25:42,878 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 02:25:42,879 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 02:25:42,883 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:25:42" (1/1) ... [2018-12-09 02:25:42,889 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:25:42" (1/1) ... [2018-12-09 02:25:42,893 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 02:25:42,893 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 02:25:42,893 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 02:25:42,893 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 02:25:42,899 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:25:42" (1/1) ... [2018-12-09 02:25:42,899 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:25:42" (1/1) ... [2018-12-09 02:25:42,900 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:25:42" (1/1) ... [2018-12-09 02:25:42,900 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:25:42" (1/1) ... [2018-12-09 02:25:42,906 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:25:42" (1/1) ... [2018-12-09 02:25:42,910 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:25:42" (1/1) ... [2018-12-09 02:25:42,911 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:25:42" (1/1) ... [2018-12-09 02:25:42,912 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 02:25:42,912 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 02:25:42,912 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 02:25:42,912 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 02:25:42,913 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:25:42" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d05f7f6f-ffab-4c2f-ae0a-0fcd8efca491/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 02:25:42,942 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 02:25:42,942 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 02:25:42,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-12-09 02:25:42,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-09 02:25:42,943 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 02:25:42,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 02:25:42,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-12-09 02:25:42,943 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 02:25:42,943 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 02:25:42,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 02:25:42,943 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-09 02:25:42,943 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-12-09 02:25:42,943 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-12-09 02:25:42,943 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 02:25:42,943 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2018-12-09 02:25:42,943 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2018-12-09 02:25:43,103 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 02:25:43,103 INFO L280 CfgBuilder]: Removed 8 assue(true) statements. [2018-12-09 02:25:43,104 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 02:25:43 BoogieIcfgContainer [2018-12-09 02:25:43,104 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 02:25:43,104 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 02:25:43,104 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 02:25:43,106 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 02:25:43,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 02:25:42" (1/3) ... [2018-12-09 02:25:43,106 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f27e13b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 02:25:43, skipping insertion in model container [2018-12-09 02:25:43,107 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:25:42" (2/3) ... [2018-12-09 02:25:43,107 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f27e13b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 02:25:43, skipping insertion in model container [2018-12-09 02:25:43,107 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 02:25:43" (3/3) ... [2018-12-09 02:25:43,108 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0730c_true-unreach-call.c [2018-12-09 02:25:43,113 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 02:25:43,119 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 02:25:43,127 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 02:25:43,144 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 02:25:43,145 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 02:25:43,145 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 02:25:43,145 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 02:25:43,145 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 02:25:43,145 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 02:25:43,145 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 02:25:43,145 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 02:25:43,155 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states. [2018-12-09 02:25:43,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-12-09 02:25:43,158 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 02:25:43,159 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 02:25:43,160 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 02:25:43,163 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 02:25:43,163 INFO L82 PathProgramCache]: Analyzing trace with hash 682309180, now seen corresponding path program 1 times [2018-12-09 02:25:43,164 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 02:25:43,191 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 02:25:43,191 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 02:25:43,192 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 02:25:43,192 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 02:25:43,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 02:25:43,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 02:25:43,238 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 02:25:43,238 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 02:25:43,238 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 02:25:43,241 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-09 02:25:43,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-09 02:25:43,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 02:25:43,250 INFO L87 Difference]: Start difference. First operand 50 states. Second operand 2 states. [2018-12-09 02:25:43,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 02:25:43,263 INFO L93 Difference]: Finished difference Result 92 states and 133 transitions. [2018-12-09 02:25:43,263 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-09 02:25:43,264 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 17 [2018-12-09 02:25:43,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 02:25:43,269 INFO L225 Difference]: With dead ends: 92 [2018-12-09 02:25:43,269 INFO L226 Difference]: Without dead ends: 46 [2018-12-09 02:25:43,271 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 02:25:43,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2018-12-09 02:25:43,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2018-12-09 02:25:43,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2018-12-09 02:25:43,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 57 transitions. [2018-12-09 02:25:43,294 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 57 transitions. Word has length 17 [2018-12-09 02:25:43,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 02:25:43,294 INFO L480 AbstractCegarLoop]: Abstraction has 46 states and 57 transitions. [2018-12-09 02:25:43,294 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-09 02:25:43,294 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 57 transitions. [2018-12-09 02:25:43,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-09 02:25:43,294 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 02:25:43,294 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 02:25:43,295 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 02:25:43,295 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 02:25:43,295 INFO L82 PathProgramCache]: Analyzing trace with hash -1153046949, now seen corresponding path program 1 times [2018-12-09 02:25:43,295 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 02:25:43,296 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 02:25:43,296 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 02:25:43,296 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 02:25:43,296 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 02:25:43,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 02:25:43,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 02:25:43,336 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-09 02:25:43,353 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 02:25:43 BoogieIcfgContainer [2018-12-09 02:25:43,353 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 02:25:43,353 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 02:25:43,353 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 02:25:43,353 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 02:25:43,353 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 02:25:43" (3/4) ... [2018-12-09 02:25:43,355 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-09 02:25:43,356 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 02:25:43,356 INFO L168 Benchmark]: Toolchain (without parser) took 668.04 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -121.7 MB). Peak memory consumption was 16.8 MB. Max. memory is 11.5 GB. [2018-12-09 02:25:43,357 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 02:25:43,357 INFO L168 Benchmark]: CACSL2BoogieTranslator took 188.96 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -177.6 MB). Peak memory consumption was 23.8 MB. Max. memory is 11.5 GB. [2018-12-09 02:25:43,357 INFO L168 Benchmark]: Boogie Procedure Inliner took 14.27 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-12-09 02:25:43,358 INFO L168 Benchmark]: Boogie Preprocessor took 19.13 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 02:25:43,358 INFO L168 Benchmark]: RCFGBuilder took 191.64 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 25.1 MB). Peak memory consumption was 25.1 MB. Max. memory is 11.5 GB. [2018-12-09 02:25:43,358 INFO L168 Benchmark]: TraceAbstraction took 248.67 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.4 MB). Peak memory consumption was 27.4 MB. Max. memory is 11.5 GB. [2018-12-09 02:25:43,359 INFO L168 Benchmark]: Witness Printer took 2.60 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 02:25:43,360 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 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 188.96 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 952.4 MB in the beginning and 1.1 GB in the end (delta: -177.6 MB). Peak memory consumption was 23.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 14.27 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 19.13 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 191.64 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 25.1 MB). Peak memory consumption was 25.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 248.67 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.4 MB). Peak memory consumption was 27.4 MB. Max. memory is 11.5 GB. * Witness Printer took 2.60 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 106]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 105, overapproximation of bitwiseAnd at line 24, overapproximation of someUnaryFLOAToperation at line 101, overapproximation of someBinaryArithmeticFLOAToperation at line 27. Possible FailurePath: [L12] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; VAL [\old(one_sqrt)=6442450949, \old(tiny_sqrt)=6442450947, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L101] float x = -0.0f; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L102] CALL, EXPR __ieee754_sqrtf(x) VAL [\old(x)=6442450948, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L15] float z; [L16] __uint32_t r, hx; [L17] __int32_t ix, s, q, m, t, i; VAL [\old(x)=6442450948, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=6442450948] [L20] ieee_float_shape_type gf_u; [L21] gf_u.value = (x) [L22] EXPR gf_u.word [L22] (ix) = gf_u.word [L24] hx = ix & 0x7fffffff VAL [\old(x)=6442450948, ix=-2147483648, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=6442450948] [L26] COND TRUE !((hx) < 0x7f800000L) [L27] return x * x + x; VAL [\old(x)=6442450948, hx=2139095040, ix=-2147483648, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=6442450948] [L102] RET, EXPR __ieee754_sqrtf(x) VAL [__ieee754_sqrtf(x)=6442450945, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=6442450948] [L102] float res = __ieee754_sqrtf(x); [L105] EXPR res == -0.0f && __signbit_float(res) == 1 VAL [one_sqrt=1, res=6442450945, res == -0.0f && __signbit_float(res) == 1=0, tiny_sqrt=1/1000000000000000000000000000000, x=6442450948] [L105] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [L106] __VERIFIER_error() VAL [one_sqrt=1, res=6442450945, tiny_sqrt=1/1000000000000000000000000000000, x=6442450948] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 50 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 61 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=50occurred 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, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 256 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-635dfa2 [2018-12-09 02:25:44,647 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 02:25:44,648 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 02:25:44,654 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 02:25:44,654 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 02:25:44,655 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 02:25:44,655 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 02:25:44,656 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 02:25:44,657 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 02:25:44,657 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 02:25:44,658 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 02:25:44,658 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 02:25:44,658 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 02:25:44,659 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 02:25:44,659 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 02:25:44,660 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 02:25:44,660 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 02:25:44,661 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 02:25:44,662 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 02:25:44,663 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 02:25:44,663 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 02:25:44,664 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 02:25:44,665 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 02:25:44,665 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 02:25:44,665 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 02:25:44,666 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 02:25:44,666 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 02:25:44,667 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 02:25:44,667 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 02:25:44,668 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 02:25:44,668 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 02:25:44,668 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 02:25:44,668 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 02:25:44,668 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 02:25:44,669 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 02:25:44,669 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 02:25:44,669 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_d05f7f6f-ffab-4c2f-ae0a-0fcd8efca491/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-12-09 02:25:44,677 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 02:25:44,677 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 02:25:44,677 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 02:25:44,677 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 02:25:44,678 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 02:25:44,678 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 02:25:44,678 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 02:25:44,678 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 02:25:44,678 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 02:25:44,678 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 02:25:44,679 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 02:25:44,679 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 02:25:44,679 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 02:25:44,679 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 02:25:44,679 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 02:25:44,679 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 02:25:44,680 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 02:25:44,680 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-09 02:25:44,680 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-09 02:25:44,680 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 02:25:44,680 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 02:25:44,680 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 02:25:44,680 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 02:25:44,680 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 02:25:44,681 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 02:25:44,681 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 02:25:44,681 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 02:25:44,681 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 02:25:44,681 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 02:25:44,681 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 02:25:44,681 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 02:25:44,681 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-12-09 02:25:44,682 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 02:25:44,682 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-09 02:25:44,682 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-09 02:25:44,682 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_d05f7f6f-ffab-4c2f-ae0a-0fcd8efca491/bin-2019/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2fdd6b263368afa8ce8882c7fab6c0f595a3666c [2018-12-09 02:25:44,701 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 02:25:44,710 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 02:25:44,712 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 02:25:44,713 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 02:25:44,714 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 02:25:44,714 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_d05f7f6f-ffab-4c2f-ae0a-0fcd8efca491/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0730c_true-unreach-call.c [2018-12-09 02:25:44,756 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_d05f7f6f-ffab-4c2f-ae0a-0fcd8efca491/bin-2019/utaipan/data/d0e9c41fd/a9526479a49f45789a52aca7d51effd5/FLAG8d0df1f03 [2018-12-09 02:25:45,056 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 02:25:45,057 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_d05f7f6f-ffab-4c2f-ae0a-0fcd8efca491/sv-benchmarks/c/float-newlib/float_req_bl_0730c_true-unreach-call.c [2018-12-09 02:25:45,061 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_d05f7f6f-ffab-4c2f-ae0a-0fcd8efca491/bin-2019/utaipan/data/d0e9c41fd/a9526479a49f45789a52aca7d51effd5/FLAG8d0df1f03 [2018-12-09 02:25:45,069 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_d05f7f6f-ffab-4c2f-ae0a-0fcd8efca491/bin-2019/utaipan/data/d0e9c41fd/a9526479a49f45789a52aca7d51effd5 [2018-12-09 02:25:45,071 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 02:25:45,072 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 02:25:45,072 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 02:25:45,072 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 02:25:45,075 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 02:25:45,076 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 02:25:45" (1/1) ... [2018-12-09 02:25:45,078 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c19bd0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:25:45, skipping insertion in model container [2018-12-09 02:25:45,078 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 02:25:45" (1/1) ... [2018-12-09 02:25:45,084 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 02:25:45,100 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 02:25:45,208 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 02:25:45,211 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 02:25:45,232 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 02:25:45,248 INFO L195 MainTranslator]: Completed translation [2018-12-09 02:25:45,248 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:25:45 WrapperNode [2018-12-09 02:25:45,248 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 02:25:45,249 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 02:25:45,249 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 02:25:45,249 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 02:25:45,254 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:25:45" (1/1) ... [2018-12-09 02:25:45,261 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:25:45" (1/1) ... [2018-12-09 02:25:45,265 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 02:25:45,265 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 02:25:45,265 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 02:25:45,265 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 02:25:45,272 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:25:45" (1/1) ... [2018-12-09 02:25:45,272 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:25:45" (1/1) ... [2018-12-09 02:25:45,274 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:25:45" (1/1) ... [2018-12-09 02:25:45,274 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:25:45" (1/1) ... [2018-12-09 02:25:45,311 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:25:45" (1/1) ... [2018-12-09 02:25:45,315 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:25:45" (1/1) ... [2018-12-09 02:25:45,317 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:25:45" (1/1) ... [2018-12-09 02:25:45,319 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 02:25:45,319 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 02:25:45,319 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 02:25:45,319 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 02:25:45,320 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:25:45" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d05f7f6f-ffab-4c2f-ae0a-0fcd8efca491/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 02:25:45,351 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 02:25:45,351 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 02:25:45,352 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-12-09 02:25:45,352 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 02:25:45,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 02:25:45,352 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 02:25:45,352 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-12-09 02:25:45,352 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 02:25:45,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 02:25:45,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-12-09 02:25:45,352 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-12-09 02:25:45,353 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-12-09 02:25:45,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-12-09 02:25:45,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 02:25:45,353 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2018-12-09 02:25:45,353 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2018-12-09 02:25:45,467 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 02:25:45,521 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 02:25:45,847 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 02:25:45,847 INFO L280 CfgBuilder]: Removed 8 assue(true) statements. [2018-12-09 02:25:45,847 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 02:25:45 BoogieIcfgContainer [2018-12-09 02:25:45,847 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 02:25:45,848 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 02:25:45,848 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 02:25:45,850 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 02:25:45,850 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 02:25:45" (1/3) ... [2018-12-09 02:25:45,850 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75e0bf3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 02:25:45, skipping insertion in model container [2018-12-09 02:25:45,850 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 02:25:45" (2/3) ... [2018-12-09 02:25:45,851 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75e0bf3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 02:25:45, skipping insertion in model container [2018-12-09 02:25:45,851 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 02:25:45" (3/3) ... [2018-12-09 02:25:45,852 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0730c_true-unreach-call.c [2018-12-09 02:25:45,859 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 02:25:45,864 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 02:25:45,873 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 02:25:45,890 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-09 02:25:45,890 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 02:25:45,891 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 02:25:45,891 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 02:25:45,891 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 02:25:45,891 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 02:25:45,891 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 02:25:45,891 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 02:25:45,891 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 02:25:45,901 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states. [2018-12-09 02:25:45,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-12-09 02:25:45,904 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 02:25:45,904 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 02:25:45,906 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 02:25:45,909 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 02:25:45,909 INFO L82 PathProgramCache]: Analyzing trace with hash 682309180, now seen corresponding path program 1 times [2018-12-09 02:25:45,911 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 02:25:45,912 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d05f7f6f-ffab-4c2f-ae0a-0fcd8efca491/bin-2019/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-12-09 02:25:45,916 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 02:25:46,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 02:25:46,020 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 02:25:46,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 02:25:46,031 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 02:25:46,039 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 02:25:46,039 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 02:25:46,041 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-09 02:25:46,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-09 02:25:46,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 02:25:46,050 INFO L87 Difference]: Start difference. First operand 50 states. Second operand 2 states. [2018-12-09 02:25:46,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 02:25:46,064 INFO L93 Difference]: Finished difference Result 92 states and 133 transitions. [2018-12-09 02:25:46,064 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-09 02:25:46,065 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 17 [2018-12-09 02:25:46,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 02:25:46,071 INFO L225 Difference]: With dead ends: 92 [2018-12-09 02:25:46,071 INFO L226 Difference]: Without dead ends: 46 [2018-12-09 02:25:46,073 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 02:25:46,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2018-12-09 02:25:46,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2018-12-09 02:25:46,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2018-12-09 02:25:46,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 57 transitions. [2018-12-09 02:25:46,098 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 57 transitions. Word has length 17 [2018-12-09 02:25:46,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 02:25:46,098 INFO L480 AbstractCegarLoop]: Abstraction has 46 states and 57 transitions. [2018-12-09 02:25:46,098 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-09 02:25:46,099 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 57 transitions. [2018-12-09 02:25:46,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-09 02:25:46,099 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 02:25:46,099 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 02:25:46,099 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 02:25:46,099 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 02:25:46,100 INFO L82 PathProgramCache]: Analyzing trace with hash -1153046949, now seen corresponding path program 1 times [2018-12-09 02:25:46,100 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 02:25:46,100 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d05f7f6f-ffab-4c2f-ae0a-0fcd8efca491/bin-2019/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-12-09 02:25:46,102 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 02:25:46,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 02:25:46,201 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 02:25:46,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 02:25:46,285 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 02:25:46,292 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 02:25:46,292 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 02:25:46,293 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 02:25:46,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 02:25:46,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-09 02:25:46,293 INFO L87 Difference]: Start difference. First operand 46 states and 57 transitions. Second operand 7 states. [2018-12-09 02:25:46,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 02:25:46,945 INFO L93 Difference]: Finished difference Result 66 states and 78 transitions. [2018-12-09 02:25:46,946 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-09 02:25:46,946 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2018-12-09 02:25:46,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 02:25:46,948 INFO L225 Difference]: With dead ends: 66 [2018-12-09 02:25:46,948 INFO L226 Difference]: Without dead ends: 51 [2018-12-09 02:25:46,948 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-12-09 02:25:46,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2018-12-09 02:25:46,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 46. [2018-12-09 02:25:46,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2018-12-09 02:25:46,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 56 transitions. [2018-12-09 02:25:46,953 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 56 transitions. Word has length 18 [2018-12-09 02:25:46,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 02:25:46,953 INFO L480 AbstractCegarLoop]: Abstraction has 46 states and 56 transitions. [2018-12-09 02:25:46,953 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 02:25:46,954 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 56 transitions. [2018-12-09 02:25:46,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-09 02:25:46,954 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 02:25:46,954 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 02:25:46,954 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 02:25:46,954 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 02:25:46,954 INFO L82 PathProgramCache]: Analyzing trace with hash -2106122886, now seen corresponding path program 1 times [2018-12-09 02:25:46,955 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 02:25:46,955 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d05f7f6f-ffab-4c2f-ae0a-0fcd8efca491/bin-2019/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-12-09 02:25:46,958 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 02:25:46,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 02:25:46,984 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 02:25:47,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 02:25:47,021 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 02:25:47,027 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 02:25:47,027 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 02:25:47,028 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 02:25:47,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 02:25:47,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-09 02:25:47,028 INFO L87 Difference]: Start difference. First operand 46 states and 56 transitions. Second operand 7 states. [2018-12-09 02:25:47,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 02:25:47,635 INFO L93 Difference]: Finished difference Result 53 states and 63 transitions. [2018-12-09 02:25:47,635 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 02:25:47,635 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2018-12-09 02:25:47,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 02:25:47,636 INFO L225 Difference]: With dead ends: 53 [2018-12-09 02:25:47,636 INFO L226 Difference]: Without dead ends: 50 [2018-12-09 02:25:47,636 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2018-12-09 02:25:47,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2018-12-09 02:25:47,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2018-12-09 02:25:47,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-12-09 02:25:47,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 60 transitions. [2018-12-09 02:25:47,641 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 60 transitions. Word has length 19 [2018-12-09 02:25:47,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 02:25:47,642 INFO L480 AbstractCegarLoop]: Abstraction has 50 states and 60 transitions. [2018-12-09 02:25:47,642 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 02:25:47,642 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 60 transitions. [2018-12-09 02:25:47,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-12-09 02:25:47,643 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 02:25:47,643 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 02:25:47,643 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 02:25:47,643 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 02:25:47,643 INFO L82 PathProgramCache]: Analyzing trace with hash 1963308863, now seen corresponding path program 1 times [2018-12-09 02:25:47,644 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 02:25:47,644 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d05f7f6f-ffab-4c2f-ae0a-0fcd8efca491/bin-2019/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-12-09 02:25:47,647 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 02:25:47,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 02:25:47,811 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 02:25:47,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 02:25:47,862 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 02:25:47,870 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 02:25:47,870 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 02:25:47,870 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 02:25:47,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 02:25:47,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-09 02:25:47,871 INFO L87 Difference]: Start difference. First operand 50 states and 60 transitions. Second operand 7 states. [2018-12-09 02:25:48,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 02:25:48,644 INFO L93 Difference]: Finished difference Result 66 states and 76 transitions. [2018-12-09 02:25:48,644 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-09 02:25:48,644 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2018-12-09 02:25:48,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 02:25:48,645 INFO L225 Difference]: With dead ends: 66 [2018-12-09 02:25:48,645 INFO L226 Difference]: Without dead ends: 28 [2018-12-09 02:25:48,645 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-12-09 02:25:48,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2018-12-09 02:25:48,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2018-12-09 02:25:48,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2018-12-09 02:25:48,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 27 transitions. [2018-12-09 02:25:48,649 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 27 transitions. Word has length 20 [2018-12-09 02:25:48,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 02:25:48,649 INFO L480 AbstractCegarLoop]: Abstraction has 28 states and 27 transitions. [2018-12-09 02:25:48,649 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 02:25:48,649 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 27 transitions. [2018-12-09 02:25:48,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-12-09 02:25:48,650 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 02:25:48,650 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] [2018-12-09 02:25:48,650 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 02:25:48,650 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 02:25:48,650 INFO L82 PathProgramCache]: Analyzing trace with hash 341958705, now seen corresponding path program 1 times [2018-12-09 02:25:48,651 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 02:25:48,651 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_d05f7f6f-ffab-4c2f-ae0a-0fcd8efca491/bin-2019/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-12-09 02:25:48,654 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 02:25:48,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 02:25:48,686 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 02:25:48,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 02:25:48,908 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 02:25:48,916 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 02:25:48,917 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-12-09 02:25:48,917 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-12-09 02:25:48,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-12-09 02:25:48,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2018-12-09 02:25:48,917 INFO L87 Difference]: Start difference. First operand 28 states and 27 transitions. Second operand 12 states. [2018-12-09 02:25:49,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 02:25:49,274 INFO L93 Difference]: Finished difference Result 28 states and 27 transitions. [2018-12-09 02:25:49,274 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-12-09 02:25:49,274 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 27 [2018-12-09 02:25:49,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 02:25:49,275 INFO L225 Difference]: With dead ends: 28 [2018-12-09 02:25:49,275 INFO L226 Difference]: Without dead ends: 0 [2018-12-09 02:25:49,275 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2018-12-09 02:25:49,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-09 02:25:49,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-09 02:25:49,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-09 02:25:49,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-09 02:25:49,276 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 27 [2018-12-09 02:25:49,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 02:25:49,276 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 02:25:49,276 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-12-09 02:25:49,276 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-09 02:25:49,276 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-09 02:25:49,279 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-09 02:25:49,375 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-09 02:25:49,375 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-12-09 02:25:49,375 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-09 02:25:49,375 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-09 02:25:49,375 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-12-09 02:25:49,376 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-09 02:25:49,376 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-09 02:25:49,376 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 93 111) the Hoare annotation is: true [2018-12-09 02:25:49,376 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 93 111) no Hoare annotation was computed. [2018-12-09 02:25:49,376 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 93 111) no Hoare annotation was computed. [2018-12-09 02:25:49,376 INFO L448 ceAbstractionStarter]: For program point L106(line 106) no Hoare annotation was computed. [2018-12-09 02:25:49,376 INFO L448 ceAbstractionStarter]: For program point L105(line 105) no Hoare annotation was computed. [2018-12-09 02:25:49,376 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 106) no Hoare annotation was computed. [2018-12-09 02:25:49,376 INFO L444 ceAbstractionStarter]: At program point L105-1(line 105) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (= main_~res~0 .cse0) |main_#t~short9| (= main_~x~0 .cse0))) [2018-12-09 02:25:49,376 INFO L448 ceAbstractionStarter]: For program point L105-2(line 105) no Hoare annotation was computed. [2018-12-09 02:25:49,376 INFO L444 ceAbstractionStarter]: At program point L102(line 102) the Hoare annotation is: (= main_~x~0 (fp.neg (_ +zero 8 24))) [2018-12-09 02:25:49,376 INFO L448 ceAbstractionStarter]: For program point L102-1(line 102) no Hoare annotation was computed. [2018-12-09 02:25:49,377 INFO L448 ceAbstractionStarter]: For program point L105-4(lines 105 108) no Hoare annotation was computed. [2018-12-09 02:25:49,377 INFO L448 ceAbstractionStarter]: For program point __signbit_floatFINAL(lines 81 91) no Hoare annotation was computed. [2018-12-09 02:25:49,377 INFO L448 ceAbstractionStarter]: For program point L84-1(lines 84 88) no Hoare annotation was computed. [2018-12-09 02:25:49,377 INFO L444 ceAbstractionStarter]: At program point L84-2(lines 84 88) the Hoare annotation is: (= |__signbit_float_#in~x| __signbit_float_~x) [2018-12-09 02:25:49,377 INFO L448 ceAbstractionStarter]: For program point L84-3(lines 84 88) no Hoare annotation was computed. [2018-12-09 02:25:49,377 INFO L451 ceAbstractionStarter]: At program point __signbit_floatENTRY(lines 81 91) the Hoare annotation is: true [2018-12-09 02:25:49,377 INFO L448 ceAbstractionStarter]: For program point __signbit_floatEXIT(lines 81 91) no Hoare annotation was computed. [2018-12-09 02:25:49,377 INFO L448 ceAbstractionStarter]: For program point L35-2(lines 35 39) no Hoare annotation was computed. [2018-12-09 02:25:49,377 INFO L448 ceAbstractionStarter]: For program point L31(lines 31 32) no Hoare annotation was computed. [2018-12-09 02:25:49,377 INFO L448 ceAbstractionStarter]: For program point L52(lines 52 56) no Hoare annotation was computed. [2018-12-09 02:25:49,377 INFO L448 ceAbstractionStarter]: For program point L19-1(lines 19 23) no Hoare annotation was computed. [2018-12-09 02:25:49,377 INFO L448 ceAbstractionStarter]: For program point L52-2(lines 52 56) no Hoare annotation was computed. [2018-12-09 02:25:49,377 INFO L444 ceAbstractionStarter]: At program point L19-2(lines 19 23) the Hoare annotation is: (= |__ieee754_sqrtf_#in~x| __ieee754_sqrtf_~x) [2018-12-09 02:25:49,377 INFO L448 ceAbstractionStarter]: For program point L19-3(lines 19 23) no Hoare annotation was computed. [2018-12-09 02:25:49,378 INFO L448 ceAbstractionStarter]: For program point L73-1(lines 73 77) no Hoare annotation was computed. [2018-12-09 02:25:49,378 INFO L444 ceAbstractionStarter]: At program point L73-2(lines 73 77) the Hoare annotation is: (and (exists ((__ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (not (= (bvand (_ bv2147483647 32) __ieee754_sqrtf_~ix~0) (_ bv0 32))) (= (fp ((_ extract 31 31) __ieee754_sqrtf_~ix~0) ((_ extract 30 23) __ieee754_sqrtf_~ix~0) ((_ extract 22 0) __ieee754_sqrtf_~ix~0)) |__ieee754_sqrtf_#in~x|))) (= |__ieee754_sqrtf_#in~x| __ieee754_sqrtf_~x) (exists ((__ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (= (bvand (_ bv2147483647 32) __ieee754_sqrtf_~ix~0) __ieee754_sqrtf_~hx~0) (= (fp ((_ extract 31 31) __ieee754_sqrtf_~ix~0) ((_ extract 30 23) __ieee754_sqrtf_~ix~0) ((_ extract 22 0) __ieee754_sqrtf_~ix~0)) |__ieee754_sqrtf_#in~x|)))) [2018-12-09 02:25:49,378 INFO L448 ceAbstractionStarter]: For program point L73-3(lines 73 77) no Hoare annotation was computed. [2018-12-09 02:25:49,378 INFO L448 ceAbstractionStarter]: For program point L36-2(lines 36 37) no Hoare annotation was computed. [2018-12-09 02:25:49,378 INFO L444 ceAbstractionStarter]: At program point L36-3(lines 36 37) the Hoare annotation is: (and (exists ((__ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (not (= (bvand (_ bv2147483647 32) __ieee754_sqrtf_~ix~0) (_ bv0 32))) (= (fp ((_ extract 31 31) __ieee754_sqrtf_~ix~0) ((_ extract 30 23) __ieee754_sqrtf_~ix~0) ((_ extract 22 0) __ieee754_sqrtf_~ix~0)) |__ieee754_sqrtf_#in~x|))) (= |__ieee754_sqrtf_#in~x| __ieee754_sqrtf_~x) (exists ((__ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (= (bvand (_ bv2147483647 32) __ieee754_sqrtf_~ix~0) __ieee754_sqrtf_~hx~0) (= (fp ((_ extract 31 31) __ieee754_sqrtf_~ix~0) ((_ extract 30 23) __ieee754_sqrtf_~ix~0) ((_ extract 22 0) __ieee754_sqrtf_~ix~0)) |__ieee754_sqrtf_#in~x|)))) [2018-12-09 02:25:49,378 INFO L448 ceAbstractionStarter]: For program point L65(lines 65 68) no Hoare annotation was computed. [2018-12-09 02:25:49,378 INFO L448 ceAbstractionStarter]: For program point L36-4(lines 36 37) no Hoare annotation was computed. [2018-12-09 02:25:49,378 INFO L448 ceAbstractionStarter]: For program point L61(lines 61 70) no Hoare annotation was computed. [2018-12-09 02:25:49,378 INFO L451 ceAbstractionStarter]: At program point __ieee754_sqrtfENTRY(lines 14 79) the Hoare annotation is: true [2018-12-09 02:25:49,378 INFO L448 ceAbstractionStarter]: For program point __ieee754_sqrtfFINAL(lines 14 79) no Hoare annotation was computed. [2018-12-09 02:25:49,378 INFO L448 ceAbstractionStarter]: For program point L29(lines 29 30) no Hoare annotation was computed. [2018-12-09 02:25:49,378 INFO L448 ceAbstractionStarter]: For program point __ieee754_sqrtfEXIT(lines 14 79) no Hoare annotation was computed. [2018-12-09 02:25:49,379 INFO L444 ceAbstractionStarter]: At program point L50-2(lines 50 59) the Hoare annotation is: (and (exists ((__ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (not (= (bvand (_ bv2147483647 32) __ieee754_sqrtf_~ix~0) (_ bv0 32))) (= (fp ((_ extract 31 31) __ieee754_sqrtf_~ix~0) ((_ extract 30 23) __ieee754_sqrtf_~ix~0) ((_ extract 22 0) __ieee754_sqrtf_~ix~0)) |__ieee754_sqrtf_#in~x|))) (= |__ieee754_sqrtf_#in~x| __ieee754_sqrtf_~x) (exists ((__ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (= (bvand (_ bv2147483647 32) __ieee754_sqrtf_~ix~0) __ieee754_sqrtf_~hx~0) (= (fp ((_ extract 31 31) __ieee754_sqrtf_~ix~0) ((_ extract 30 23) __ieee754_sqrtf_~ix~0) ((_ extract 22 0) __ieee754_sqrtf_~ix~0)) |__ieee754_sqrtf_#in~x|)))) [2018-12-09 02:25:49,379 INFO L448 ceAbstractionStarter]: For program point L50-3(lines 14 79) no Hoare annotation was computed. [2018-12-09 02:25:49,379 INFO L448 ceAbstractionStarter]: For program point L42(lines 42 43) no Hoare annotation was computed. [2018-12-09 02:25:49,379 INFO L448 ceAbstractionStarter]: For program point L42-2(lines 42 43) no Hoare annotation was computed. [2018-12-09 02:25:49,379 INFO L448 ceAbstractionStarter]: For program point L63(lines 63 69) no Hoare annotation was computed. [2018-12-09 02:25:49,379 INFO L448 ceAbstractionStarter]: For program point L26(lines 26 27) no Hoare annotation was computed. [2018-12-09 02:25:49,379 INFO L448 ceAbstractionStarter]: For program point L35(lines 35 39) no Hoare annotation was computed. [2018-12-09 02:25:49,387 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 02:25:49,387 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 02:25:49,388 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 02:25:49,388 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 02:25:49,388 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 02:25:49,388 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 02:25:49,388 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 02:25:49,389 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 02:25:49,389 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 02:25:49,389 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 02:25:49,390 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 02:25:49,390 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 02:25:49,390 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 02:25:49,390 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 02:25:49,390 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 02:25:49,390 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 02:25:49,390 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 02:25:49,391 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 02:25:49,391 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 02:25:49,391 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 02:25:49,391 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 02:25:49,391 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 02:25:49,391 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 02:25:49,391 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 02:25:49,392 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 02:25:49,392 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 02:25:49,392 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 02:25:49,392 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 02:25:49,392 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 02:25:49,392 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 02:25:49,392 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 02:25:49,392 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 02:25:49,393 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 02:25:49,393 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 02:25:49,393 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 02:25:49,393 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 02:25:49,393 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 02:25:49,393 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 02:25:49,394 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 02:25:49,394 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 02:25:49,394 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 02:25:49,394 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 02:25:49,394 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 02:25:49,394 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 02:25:49,394 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 02:25:49,395 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 02:25:49,395 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 02:25:49,395 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 02:25:49,396 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 02:25:49 BoogieIcfgContainer [2018-12-09 02:25:49,396 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 02:25:49,396 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 02:25:49,396 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 02:25:49,396 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 02:25:49,397 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 02:25:45" (3/4) ... [2018-12-09 02:25:49,399 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-09 02:25:49,403 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-09 02:25:49,403 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-09 02:25:49,403 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __signbit_float [2018-12-09 02:25:49,403 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_sqrtf [2018-12-09 02:25:49,406 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 25 nodes and edges [2018-12-09 02:25:49,406 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2018-12-09 02:25:49,406 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-09 02:25:49,422 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-12-09 02:25:49,422 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-12-09 02:25:49,423 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\exists __ieee754_sqrtf_~ix~0 : bv32 :: !(~bvand32(2147483647bv32, __ieee754_sqrtf_~ix~0) == 0bv32) && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x)) && \old(x) == x) && (\exists __ieee754_sqrtf_~ix~0 : bv32 :: ~bvand32(2147483647bv32, __ieee754_sqrtf_~ix~0) == hx && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x)) [2018-12-09 02:25:49,423 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\exists __ieee754_sqrtf_~ix~0 : bv32 :: !(~bvand32(2147483647bv32, __ieee754_sqrtf_~ix~0) == 0bv32) && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x)) && \old(x) == x) && (\exists __ieee754_sqrtf_~ix~0 : bv32 :: ~bvand32(2147483647bv32, __ieee754_sqrtf_~ix~0) == hx && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x)) [2018-12-09 02:25:49,423 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\exists __ieee754_sqrtf_~ix~0 : bv32 :: !(~bvand32(2147483647bv32, __ieee754_sqrtf_~ix~0) == 0bv32) && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x)) && \old(x) == x) && (\exists __ieee754_sqrtf_~ix~0 : bv32 :: ~bvand32(2147483647bv32, __ieee754_sqrtf_~ix~0) == hx && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x)) [2018-12-09 02:25:49,440 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_d05f7f6f-ffab-4c2f-ae0a-0fcd8efca491/bin-2019/utaipan/witness.graphml [2018-12-09 02:25:49,440 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 02:25:49,440 INFO L168 Benchmark]: Toolchain (without parser) took 4369.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 943.4 MB in the beginning and 900.3 MB in the end (delta: 43.0 MB). Peak memory consumption was 185.6 MB. Max. memory is 11.5 GB. [2018-12-09 02:25:49,441 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 02:25:49,441 INFO L168 Benchmark]: CACSL2BoogieTranslator took 176.32 ms. Allocated memory is still 1.0 GB. Free memory was 943.4 MB in the beginning and 925.9 MB in the end (delta: 17.4 MB). Peak memory consumption was 17.4 MB. Max. memory is 11.5 GB. [2018-12-09 02:25:49,442 INFO L168 Benchmark]: Boogie Procedure Inliner took 16.13 ms. Allocated memory is still 1.0 GB. Free memory is still 925.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 02:25:49,442 INFO L168 Benchmark]: Boogie Preprocessor took 53.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 925.9 MB in the beginning and 1.1 GB in the end (delta: -204.5 MB). Peak memory consumption was 14.1 MB. Max. memory is 11.5 GB. [2018-12-09 02:25:49,442 INFO L168 Benchmark]: RCFGBuilder took 528.66 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: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. [2018-12-09 02:25:49,442 INFO L168 Benchmark]: TraceAbstraction took 3548.14 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 900.3 MB in the end (delta: 203.3 MB). Peak memory consumption was 203.3 MB. Max. memory is 11.5 GB. [2018-12-09 02:25:49,442 INFO L168 Benchmark]: Witness Printer took 43.70 ms. Allocated memory is still 1.2 GB. Free memory is still 900.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 02:25:49,443 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 176.32 ms. Allocated memory is still 1.0 GB. Free memory was 943.4 MB in the beginning and 925.9 MB in the end (delta: 17.4 MB). Peak memory consumption was 17.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 16.13 ms. Allocated memory is still 1.0 GB. Free memory is still 925.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 53.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 925.9 MB in the beginning and 1.1 GB in the end (delta: -204.5 MB). Peak memory consumption was 14.1 MB. Max. memory is 11.5 GB. * RCFGBuilder took 528.66 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: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3548.14 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 900.3 MB in the end (delta: 203.3 MB). Peak memory consumption was 203.3 MB. Max. memory is 11.5 GB. * Witness Printer took 43.70 ms. Allocated memory is still 1.2 GB. Free memory is still 900.3 MB. There was no memory consumed. 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_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 106]: 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: 84]: Loop Invariant Derived loop invariant: \old(x) == x - InvariantResult [Line: 50]: Loop Invariant [2018-12-09 02:25:49,446 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 02:25:49,446 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 02:25:49,446 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 02:25:49,447 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 02:25:49,447 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 02:25:49,447 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 02:25:49,447 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 02:25:49,447 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 02:25:49,447 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 02:25:49,447 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 02:25:49,447 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 02:25:49,448 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 02:25:49,448 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 02:25:49,448 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 02:25:49,448 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 02:25:49,448 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] Derived loop invariant: ((\exists __ieee754_sqrtf_~ix~0 : bv32 :: !(~bvand32(2147483647bv32, __ieee754_sqrtf_~ix~0) == 0bv32) && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x)) && \old(x) == x) && (\exists __ieee754_sqrtf_~ix~0 : bv32 :: ~bvand32(2147483647bv32, __ieee754_sqrtf_~ix~0) == hx && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x)) - InvariantResult [Line: 73]: Loop Invariant [2018-12-09 02:25:49,448 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 02:25:49,448 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 02:25:49,448 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 02:25:49,448 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 02:25:49,449 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 02:25:49,449 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 02:25:49,449 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 02:25:49,449 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 02:25:49,449 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 02:25:49,449 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 02:25:49,449 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 02:25:49,449 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 02:25:49,450 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 02:25:49,450 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 02:25:49,450 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 02:25:49,450 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] Derived loop invariant: ((\exists __ieee754_sqrtf_~ix~0 : bv32 :: !(~bvand32(2147483647bv32, __ieee754_sqrtf_~ix~0) == 0bv32) && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x)) && \old(x) == x) && (\exists __ieee754_sqrtf_~ix~0 : bv32 :: ~bvand32(2147483647bv32, __ieee754_sqrtf_~ix~0) == hx && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x)) - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: \old(x) == x - InvariantResult [Line: 36]: Loop Invariant [2018-12-09 02:25:49,450 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 02:25:49,450 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 02:25:49,450 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 02:25:49,451 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 02:25:49,451 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 02:25:49,451 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 02:25:49,451 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 02:25:49,451 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 02:25:49,451 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 02:25:49,451 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 02:25:49,451 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 02:25:49,451 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 02:25:49,452 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 02:25:49,452 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 02:25:49,452 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 02:25:49,452 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] Derived loop invariant: ((\exists __ieee754_sqrtf_~ix~0 : bv32 :: !(~bvand32(2147483647bv32, __ieee754_sqrtf_~ix~0) == 0bv32) && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x)) && \old(x) == x) && (\exists __ieee754_sqrtf_~ix~0 : bv32 :: ~bvand32(2147483647bv32, __ieee754_sqrtf_~ix~0) == hx && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 50 locations, 1 error locations. SAFE Result, 3.4s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 2.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 213 SDtfs, 257 SDslu, 612 SDs, 0 SdLazy, 234 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 113 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=50occurred 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, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 13 LocationsWithAnnotation, 19 PreInvPairs, 26 NumberOfFragments, 137 HoareAnnotationTreeSize, 19 FomulaSimplifications, 147 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 13 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 101 NumberOfCodeBlocks, 101 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 96 ConstructedInterpolants, 10 QuantifiedInterpolants, 8787 SizeOfPredicates, 17 NumberOfNonLiveVariables, 297 ConjunctsInSsa, 40 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...