/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/float-newlib/float_req_bl_0740_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 40ef5092 Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/float-newlib/float_req_bl_0740_true-unreach-call.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1ba5abe06d07a4712bf40ef71e353712c0bd3c97 ................................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/float-newlib/float_req_bl_0740_true-unreach-call.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1ba5abe06d07a4712bf40ef71e353712c0bd3c97 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-40ef509 [2018-09-20 15:19:39,162 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 15:19:39,164 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 15:19:39,176 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 15:19:39,176 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 15:19:39,177 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 15:19:39,179 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 15:19:39,181 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 15:19:39,183 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 15:19:39,184 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 15:19:39,185 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 15:19:39,185 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 15:19:39,186 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 15:19:39,187 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 15:19:39,188 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 15:19:39,189 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 15:19:39,190 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 15:19:39,192 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 15:19:39,194 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 15:19:39,196 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 15:19:39,197 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 15:19:39,198 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 15:19:39,201 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 15:19:39,201 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 15:19:39,202 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 15:19:39,203 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 15:19:39,204 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 15:19:39,205 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 15:19:39,206 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 15:19:39,207 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 15:19:39,207 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 15:19:39,208 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 15:19:39,209 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 15:19:39,209 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 15:19:39,210 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 15:19:39,211 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 15:19:39,211 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-20 15:19:39,227 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 15:19:39,228 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 15:19:39,229 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 15:19:39,229 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 15:19:39,230 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 15:19:39,230 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 15:19:39,230 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 15:19:39,231 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 15:19:39,231 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 15:19:39,231 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-20 15:19:39,231 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 15:19:39,232 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 15:19:39,232 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 15:19:39,232 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 15:19:39,232 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 15:19:39,233 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 15:19:39,233 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 15:19:39,233 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 15:19:39,234 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 15:19:39,234 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 15:19:39,234 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 15:19:39,234 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 15:19:39,235 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 15:19:39,235 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 15:19:39,235 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 15:19:39,235 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 15:19:39,236 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-20 15:19:39,236 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 15:19:39,236 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-20 15:19:39,237 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1ba5abe06d07a4712bf40ef71e353712c0bd3c97 [2018-09-20 15:19:39,287 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 15:19:39,300 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 15:19:39,306 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 15:19:39,307 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 15:19:39,308 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 15:19:39,309 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0740_true-unreach-call.c [2018-09-20 15:19:39,656 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e379556dc/87bd2a91d0e045688bb3c5bfb7430dd9/FLAG99fb19904 [2018-09-20 15:19:39,835 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 15:19:39,836 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0740_true-unreach-call.c [2018-09-20 15:19:39,847 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e379556dc/87bd2a91d0e045688bb3c5bfb7430dd9/FLAG99fb19904 [2018-09-20 15:19:39,881 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e379556dc/87bd2a91d0e045688bb3c5bfb7430dd9 [2018-09-20 15:19:39,885 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 15:19:39,888 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 15:19:39,890 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 15:19:39,890 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 15:19:39,898 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 15:19:39,900 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:19:39" (1/1) ... [2018-09-20 15:19:39,903 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c01ba73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:19:39, skipping insertion in model container [2018-09-20 15:19:39,903 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:19:39" (1/1) ... [2018-09-20 15:19:39,918 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 15:19:40,158 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:19:40,181 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 15:19:40,226 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:19:40,272 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:19:40 WrapperNode [2018-09-20 15:19:40,273 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 15:19:40,274 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 15:19:40,274 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 15:19:40,274 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 15:19:40,290 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:19:40" (1/1) ... [2018-09-20 15:19:40,290 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:19:40" (1/1) ... [2018-09-20 15:19:40,305 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:19:40" (1/1) ... [2018-09-20 15:19:40,307 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:19:40" (1/1) ... [2018-09-20 15:19:40,324 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:19:40" (1/1) ... [2018-09-20 15:19:40,336 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:19:40" (1/1) ... [2018-09-20 15:19:40,342 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:19:40" (1/1) ... [2018-09-20 15:19:40,348 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 15:19:40,352 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 15:19:40,352 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 15:19:40,352 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 15:19:40,356 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:19:40" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-09-20 15:19:40,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 15:19:40,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 15:19:40,434 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-09-20 15:19:40,434 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2018-09-20 15:19:40,435 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 15:19:40,435 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 15:19:40,436 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-09-20 15:19:40,436 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-09-20 15:19:40,436 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2018-09-20 15:19:40,436 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-20 15:19:40,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-09-20 15:19:40,439 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-09-20 15:19:40,439 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-20 15:19:40,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-09-20 15:19:40,439 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-09-20 15:19:40,440 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 15:19:40,440 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 15:19:40,440 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 15:19:40,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-09-20 15:19:40,440 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-09-20 15:19:41,074 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 15:19:41,075 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:19:41 BoogieIcfgContainer [2018-09-20 15:19:41,075 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 15:19:41,076 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 15:19:41,076 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 15:19:41,080 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 15:19:41,080 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 03:19:39" (1/3) ... [2018-09-20 15:19:41,081 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21498ffa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:19:41, skipping insertion in model container [2018-09-20 15:19:41,081 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:19:40" (2/3) ... [2018-09-20 15:19:41,081 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21498ffa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:19:41, skipping insertion in model container [2018-09-20 15:19:41,082 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:19:41" (3/3) ... [2018-09-20 15:19:41,084 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0740_true-unreach-call.c [2018-09-20 15:19:41,094 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 15:19:41,103 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-20 15:19:41,155 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 15:19:41,156 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 15:19:41,156 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 15:19:41,156 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 15:19:41,156 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 15:19:41,156 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 15:19:41,156 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 15:19:41,157 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 15:19:41,157 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 15:19:41,178 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states. [2018-09-20 15:19:41,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-09-20 15:19:41,186 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:19:41,187 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:19:41,189 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:19:41,195 INFO L82 PathProgramCache]: Analyzing trace with hash 1682299779, now seen corresponding path program 1 times [2018-09-20 15:19:41,197 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-20 15:19:41,198 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-20 15:19:41,252 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:19:41,252 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:19:41,252 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:19:41,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:19:41,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:19:41,347 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:19:41,347 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-20 15:19:41,351 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-20 15:19:41,365 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-20 15:19:41,366 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 15:19:41,368 INFO L87 Difference]: Start difference. First operand 64 states. Second operand 2 states. [2018-09-20 15:19:41,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:19:41,398 INFO L93 Difference]: Finished difference Result 120 states and 154 transitions. [2018-09-20 15:19:41,398 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-20 15:19:41,401 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 21 [2018-09-20 15:19:41,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:19:41,418 INFO L225 Difference]: With dead ends: 120 [2018-09-20 15:19:41,419 INFO L226 Difference]: Without dead ends: 60 [2018-09-20 15:19:41,425 INFO L606 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 [2018-09-20 15:19:41,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2018-09-20 15:19:41,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2018-09-20 15:19:41,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2018-09-20 15:19:41,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 70 transitions. [2018-09-20 15:19:41,471 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 70 transitions. Word has length 21 [2018-09-20 15:19:41,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:19:41,472 INFO L480 AbstractCegarLoop]: Abstraction has 60 states and 70 transitions. [2018-09-20 15:19:41,472 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-20 15:19:41,472 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 70 transitions. [2018-09-20 15:19:41,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-09-20 15:19:41,474 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:19:41,474 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:19:41,474 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:19:41,475 INFO L82 PathProgramCache]: Analyzing trace with hash 859479452, now seen corresponding path program 1 times [2018-09-20 15:19:41,475 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-20 15:19:41,475 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-20 15:19:41,476 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:19:41,477 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:19:41,477 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:19:41,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 15:19:41,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 15:19:41,654 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-20 15:19:41,704 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 03:19:41 BoogieIcfgContainer [2018-09-20 15:19:41,704 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-20 15:19:41,704 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-20 15:19:41,704 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-20 15:19:41,705 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-20 15:19:41,705 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:19:41" (3/4) ... [2018-09-20 15:19:41,711 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-09-20 15:19:41,711 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-20 15:19:41,712 INFO L168 Benchmark]: Toolchain (without parser) took 1826.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.2 MB). Free memory was 951.8 MB in the beginning and 1.1 GB in the end (delta: -145.2 MB). Peak memory consumption was 10.0 MB. Max. memory is 11.5 GB. [2018-09-20 15:19:41,715 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 15:19:41,716 INFO L168 Benchmark]: CACSL2BoogieTranslator took 382.88 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 941.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-09-20 15:19:41,717 INFO L168 Benchmark]: Boogie Preprocessor took 77.79 ms. Allocated memory is still 1.0 GB. Free memory was 941.1 MB in the beginning and 935.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-09-20 15:19:41,718 INFO L168 Benchmark]: RCFGBuilder took 723.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.2 MB). Free memory was 935.7 MB in the beginning and 1.1 GB in the end (delta: -188.1 MB). Peak memory consumption was 27.6 MB. Max. memory is 11.5 GB. [2018-09-20 15:19:41,719 INFO L168 Benchmark]: TraceAbstraction took 627.79 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: 20.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 11.5 GB. [2018-09-20 15:19:41,720 INFO L168 Benchmark]: Witness Printer took 7.19 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-09-20 15:19:41,728 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 382.88 ms. Allocated memory is still 1.0 GB. Free memory was 951.8 MB in the beginning and 941.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 77.79 ms. Allocated memory is still 1.0 GB. Free memory was 941.1 MB in the beginning and 935.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 723.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.2 MB). Free memory was 935.7 MB in the beginning and 1.1 GB in the end (delta: -188.1 MB). Peak memory consumption was 27.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 627.79 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: 20.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 11.5 GB. * Witness Printer took 7.19 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 97]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 13, overapproximation of someBinaryArithmeticFLOAToperation at line 30, overapproximation of bitwiseAnd at line 27. Possible FailurePath: [L15] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; VAL [\old(one_sqrt)=10, \old(tiny_sqrt)=8, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L91] float x = -1.0f / 0.0f; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L93] CALL, EXPR __ieee754_sqrtf(x) VAL [\old(x)=9, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L18] float z; [L19] __uint32_t r, hx; [L20] __int32_t ix, s, q, m, t, i; VAL [\old(x)=9, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=9] [L23] FCALL ieee_float_shape_type gf_u; VAL [\old(x)=9, gf_u={7:0}, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=9] [L24] FCALL gf_u.value = (x) VAL [\old(x)=9, gf_u={7:0}, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=9] [L25] EXPR, FCALL gf_u.word VAL [\old(x)=9, gf_u={7:0}, gf_u.word=3, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=9] [L25] (ix) = gf_u.word VAL [\old(x)=9, gf_u={7:0}, gf_u.word=3, ix=3, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=9] [L25] FCALL (ix) = gf_u.word VAL [(ix) = gf_u.word=12, \old(x)=9, gf_u={7:0}, gf_u.word=3, ix=3, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=9] [L26] COND FALSE !(0) VAL [\old(x)=9, ix=3, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=9] [L27] hx = ix & 0x7fffffff VAL [\old(x)=9, ix=3, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=9] [L29] COND TRUE !((hx) < 0x7f800000L) [L30] RET return x * x + x; VAL [\old(x)=9, hx=2139095040, ix=3, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=9] [L93] EXPR __ieee754_sqrtf(x) VAL [__ieee754_sqrtf(x)=5, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=9] [L93] float res = __ieee754_sqrtf(x); [L96] CALL, EXPR isnan_float(res) VAL [\old(x)=5, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L13] RET return x != x; VAL [\old(x)=5, \result=0, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=5] [L96] EXPR isnan_float(res) VAL [isnan_float(res)=0, one_sqrt=1, res=5, tiny_sqrt=1/1000000000000000000000000000000, x=9] [L96] COND TRUE !isnan_float(res) [L97] __VERIFIER_error() VAL [one_sqrt=1, res=5, tiny_sqrt=1/1000000000000000000000000000000, x=9] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 64 locations, 1 error locations. UNSAFE Result, 0.5s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 74 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=64occurred 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, 51 NumberOfCodeBlocks, 51 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 400 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-40ef509 [2018-09-20 15:19:44,047 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 15:19:44,049 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 15:19:44,068 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 15:19:44,070 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 15:19:44,071 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 15:19:44,074 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 15:19:44,076 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 15:19:44,077 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 15:19:44,078 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 15:19:44,079 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 15:19:44,079 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 15:19:44,080 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 15:19:44,081 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 15:19:44,082 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 15:19:44,083 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 15:19:44,084 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 15:19:44,086 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 15:19:44,088 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 15:19:44,089 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 15:19:44,090 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 15:19:44,092 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 15:19:44,094 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 15:19:44,094 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 15:19:44,095 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 15:19:44,096 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 15:19:44,097 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 15:19:44,097 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 15:19:44,098 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 15:19:44,099 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 15:19:44,100 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 15:19:44,100 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 15:19:44,101 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 15:19:44,101 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 15:19:44,102 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 15:19:44,103 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 15:19:44,103 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-20 15:19:44,129 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 15:19:44,130 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 15:19:44,136 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 15:19:44,136 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 15:19:44,137 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 15:19:44,137 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 15:19:44,137 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 15:19:44,137 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 15:19:44,139 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 15:19:44,139 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 15:19:44,139 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 15:19:44,139 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 15:19:44,139 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 15:19:44,139 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 15:19:44,140 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-20 15:19:44,140 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-20 15:19:44,140 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 15:19:44,140 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 15:19:44,141 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 15:19:44,142 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 15:19:44,142 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 15:19:44,142 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 15:19:44,142 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 15:19:44,143 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 15:19:44,143 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 15:19:44,143 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 15:19:44,143 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 15:19:44,144 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-20 15:19:44,144 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 15:19:44,144 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-20 15:19:44,144 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-20 15:19:44,144 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1ba5abe06d07a4712bf40ef71e353712c0bd3c97 [2018-09-20 15:19:44,218 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 15:19:44,236 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 15:19:44,242 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 15:19:44,244 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 15:19:44,244 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 15:19:44,245 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0740_true-unreach-call.c [2018-09-20 15:19:44,597 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7430b848a/d6f9ddf490704792bd411e6ae86df5f6/FLAGd0ceecd40 [2018-09-20 15:19:44,723 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 15:19:44,724 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0740_true-unreach-call.c [2018-09-20 15:19:44,732 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7430b848a/d6f9ddf490704792bd411e6ae86df5f6/FLAGd0ceecd40 [2018-09-20 15:19:44,748 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7430b848a/d6f9ddf490704792bd411e6ae86df5f6 [2018-09-20 15:19:44,752 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 15:19:44,755 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 15:19:44,756 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 15:19:44,757 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 15:19:44,764 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 15:19:44,765 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:19:44" (1/1) ... [2018-09-20 15:19:44,768 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@dff9781 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:19:44, skipping insertion in model container [2018-09-20 15:19:44,768 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:19:44" (1/1) ... [2018-09-20 15:19:44,780 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 15:19:45,071 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:19:45,092 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 15:19:45,114 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:19:45,151 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:19:45 WrapperNode [2018-09-20 15:19:45,151 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 15:19:45,152 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 15:19:45,152 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 15:19:45,152 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 15:19:45,177 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:19:45" (1/1) ... [2018-09-20 15:19:45,177 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:19:45" (1/1) ... [2018-09-20 15:19:45,194 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:19:45" (1/1) ... [2018-09-20 15:19:45,197 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:19:45" (1/1) ... [2018-09-20 15:19:45,217 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:19:45" (1/1) ... [2018-09-20 15:19:45,232 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:19:45" (1/1) ... [2018-09-20 15:19:45,236 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:19:45" (1/1) ... [2018-09-20 15:19:45,245 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 15:19:45,246 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 15:19:45,246 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 15:19:45,246 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 15:19:45,248 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:19:45" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-09-20 15:19:45,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 15:19:45,396 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 15:19:45,396 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-09-20 15:19:45,397 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2018-09-20 15:19:45,397 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 15:19:45,397 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 15:19:45,397 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-09-20 15:19:45,397 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-09-20 15:19:45,397 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2018-09-20 15:19:45,397 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-20 15:19:45,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-09-20 15:19:45,398 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-20 15:19:45,398 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-20 15:19:45,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-20 15:19:45,398 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-09-20 15:19:45,398 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 15:19:45,398 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 15:19:45,399 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 15:19:45,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2018-09-20 15:19:45,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-20 15:19:45,853 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:19:45,896 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:19:46,729 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 15:19:46,730 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:19:46 BoogieIcfgContainer [2018-09-20 15:19:46,730 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 15:19:46,732 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 15:19:46,732 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 15:19:46,736 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 15:19:46,736 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 03:19:44" (1/3) ... [2018-09-20 15:19:46,737 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ffb37ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:19:46, skipping insertion in model container [2018-09-20 15:19:46,737 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:19:45" (2/3) ... [2018-09-20 15:19:46,737 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ffb37ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:19:46, skipping insertion in model container [2018-09-20 15:19:46,738 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:19:46" (3/3) ... [2018-09-20 15:19:46,740 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0740_true-unreach-call.c [2018-09-20 15:19:46,751 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 15:19:46,760 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-20 15:19:46,805 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 15:19:46,806 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 15:19:46,806 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 15:19:46,806 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 15:19:46,807 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 15:19:46,807 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 15:19:46,807 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 15:19:46,807 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 15:19:46,807 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 15:19:46,831 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states. [2018-09-20 15:19:46,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-09-20 15:19:46,844 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:19:46,845 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:19:46,849 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:19:46,855 INFO L82 PathProgramCache]: Analyzing trace with hash -1797270075, now seen corresponding path program 1 times [2018-09-20 15:19:46,861 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:19:46,861 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-09-20 15:19:46,869 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:19:47,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:19:47,016 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:19:47,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:19:47,035 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:19:47,051 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:19:47,051 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-20 15:19:47,055 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-20 15:19:47,070 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-20 15:19:47,072 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 15:19:47,075 INFO L87 Difference]: Start difference. First operand 63 states. Second operand 2 states. [2018-09-20 15:19:47,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:19:47,104 INFO L93 Difference]: Finished difference Result 118 states and 152 transitions. [2018-09-20 15:19:47,104 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-20 15:19:47,106 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 20 [2018-09-20 15:19:47,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:19:47,119 INFO L225 Difference]: With dead ends: 118 [2018-09-20 15:19:47,119 INFO L226 Difference]: Without dead ends: 59 [2018-09-20 15:19:47,123 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 15:19:47,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2018-09-20 15:19:47,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2018-09-20 15:19:47,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2018-09-20 15:19:47,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 69 transitions. [2018-09-20 15:19:47,170 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 69 transitions. Word has length 20 [2018-09-20 15:19:47,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:19:47,171 INFO L480 AbstractCegarLoop]: Abstraction has 59 states and 69 transitions. [2018-09-20 15:19:47,171 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-20 15:19:47,171 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 69 transitions. [2018-09-20 15:19:47,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-09-20 15:19:47,172 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:19:47,173 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:19:47,173 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:19:47,173 INFO L82 PathProgramCache]: Analyzing trace with hash 252091433, now seen corresponding path program 1 times [2018-09-20 15:19:47,174 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:19:47,174 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-09-20 15:19:47,180 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:19:47,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:19:47,312 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:19:48,948 WARN L178 SmtUtils]: Spent 848.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2018-09-20 15:19:51,076 WARN L178 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-09-20 15:19:51,465 WARN L178 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 5 [2018-09-20 15:19:51,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:19:51,472 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:19:51,486 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:19:51,486 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-20 15:19:51,488 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-20 15:19:51,488 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-20 15:19:51,488 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-20 15:19:51,489 INFO L87 Difference]: Start difference. First operand 59 states and 69 transitions. Second operand 9 states. [2018-09-20 15:19:56,390 WARN L178 SmtUtils]: Spent 1.68 s on a formula simplification that was a NOOP. DAG size: 9 [2018-09-20 15:20:02,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:20:02,376 INFO L93 Difference]: Finished difference Result 66 states and 76 transitions. [2018-09-20 15:20:02,377 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-09-20 15:20:02,377 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 29 [2018-09-20 15:20:02,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:20:02,380 INFO L225 Difference]: With dead ends: 66 [2018-09-20 15:20:02,380 INFO L226 Difference]: Without dead ends: 59 [2018-09-20 15:20:02,382 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 9.0s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-09-20 15:20:02,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2018-09-20 15:20:02,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2018-09-20 15:20:02,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2018-09-20 15:20:02,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 68 transitions. [2018-09-20 15:20:02,395 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 68 transitions. Word has length 29 [2018-09-20 15:20:02,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:20:02,395 INFO L480 AbstractCegarLoop]: Abstraction has 59 states and 68 transitions. [2018-09-20 15:20:02,395 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-20 15:20:02,395 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 68 transitions. [2018-09-20 15:20:02,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-09-20 15:20:02,397 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:20:02,397 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:20:02,397 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:20:02,397 INFO L82 PathProgramCache]: Analyzing trace with hash -839260789, now seen corresponding path program 1 times [2018-09-20 15:20:02,398 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:20:02,398 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-09-20 15:20:02,406 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:20:02,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:20:02,457 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:20:02,524 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 8 [2018-09-20 15:20:02,527 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-09-20 15:20:02,528 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:20:02,534 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:20:02,566 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:20:02,567 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-20 15:20:02,625 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21 [2018-09-20 15:20:02,636 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2018-09-20 15:20:02,637 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:20:02,642 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:20:02,647 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:20:02,647 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-20 15:20:02,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:20:02,818 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:20:02,831 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:20:02,832 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-20 15:20:02,832 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-20 15:20:02,833 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-20 15:20:02,833 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-20 15:20:02,833 INFO L87 Difference]: Start difference. First operand 59 states and 68 transitions. Second operand 9 states. [2018-09-20 15:20:03,680 WARN L178 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-09-20 15:20:04,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:20:04,502 INFO L93 Difference]: Finished difference Result 65 states and 75 transitions. [2018-09-20 15:20:04,511 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-09-20 15:20:04,512 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 30 [2018-09-20 15:20:04,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:20:04,512 INFO L225 Difference]: With dead ends: 65 [2018-09-20 15:20:04,513 INFO L226 Difference]: Without dead ends: 0 [2018-09-20 15:20:04,514 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=65, Invalid=207, Unknown=0, NotChecked=0, Total=272 [2018-09-20 15:20:04,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-20 15:20:04,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-20 15:20:04,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-20 15:20:04,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-20 15:20:04,515 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 30 [2018-09-20 15:20:04,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:20:04,515 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-20 15:20:04,515 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-20 15:20:04,515 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-20 15:20:04,515 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-20 15:20:04,521 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-20 15:20:04,743 WARN L178 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2018-09-20 15:20:04,934 INFO L426 ceAbstractionStarter]: For program point isnan_floatFINAL(line 13) no Hoare annotation was computed. [2018-09-20 15:20:04,934 INFO L429 ceAbstractionStarter]: At program point isnan_floatENTRY(line 13) the Hoare annotation is: true [2018-09-20 15:20:04,935 INFO L426 ceAbstractionStarter]: For program point isnan_floatEXIT(line 13) no Hoare annotation was computed. [2018-09-20 15:20:04,935 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-09-20 15:20:04,935 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-09-20 15:20:04,935 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-09-20 15:20:04,935 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-09-20 15:20:04,935 INFO L429 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-09-20 15:20:04,936 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-09-20 15:20:04,936 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-09-20 15:20:04,936 INFO L426 ceAbstractionStarter]: For program point L97(line 97) no Hoare annotation was computed. [2018-09-20 15:20:04,936 INFO L422 ceAbstractionStarter]: At program point L96(line 96) the Hoare annotation is: (let ((.cse0 (fp.div RNE (fp.neg ((_ to_fp 8 24) RNE 1.0)) (_ +zero 8 24)))) (and (= main_~res~0 (fp.add RNE (fp.mul RNE .cse0 .cse0) .cse0)) (= .cse0 main_~x~0))) [2018-09-20 15:20:04,936 INFO L426 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 97) no Hoare annotation was computed. [2018-09-20 15:20:04,936 INFO L426 ceAbstractionStarter]: For program point L96-1(lines 96 99) no Hoare annotation was computed. [2018-09-20 15:20:04,937 INFO L429 ceAbstractionStarter]: At program point mainENTRY(lines 84 102) the Hoare annotation is: true [2018-09-20 15:20:04,937 INFO L422 ceAbstractionStarter]: At program point L93(line 93) the Hoare annotation is: (= (fp.div RNE (fp.neg ((_ to_fp 8 24) RNE 1.0)) (_ +zero 8 24)) main_~x~0) [2018-09-20 15:20:04,937 INFO L426 ceAbstractionStarter]: For program point mainFINAL(lines 84 102) no Hoare annotation was computed. [2018-09-20 15:20:04,937 INFO L426 ceAbstractionStarter]: For program point L93-1(line 93) no Hoare annotation was computed. [2018-09-20 15:20:04,937 INFO L426 ceAbstractionStarter]: For program point mainEXIT(lines 84 102) no Hoare annotation was computed. [2018-09-20 15:20:04,937 INFO L426 ceAbstractionStarter]: For program point L77(line 77) no Hoare annotation was computed. [2018-09-20 15:20:04,937 INFO L426 ceAbstractionStarter]: For program point L77-1(line 77) no Hoare annotation was computed. [2018-09-20 15:20:04,938 INFO L426 ceAbstractionStarter]: For program point L77-2(line 77) no Hoare annotation was computed. [2018-09-20 15:20:04,938 INFO L426 ceAbstractionStarter]: For program point L77-3(line 77) no Hoare annotation was computed. [2018-09-20 15:20:04,938 INFO L426 ceAbstractionStarter]: For program point L53-1(lines 53 62) no Hoare annotation was computed. [2018-09-20 15:20:04,938 INFO L422 ceAbstractionStarter]: At program point L53-3(lines 53 62) the Hoare annotation is: (and (exists ((__ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (= (bvand __ieee754_sqrtf_~ix~0 (_ bv2147483647 32)) __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|))) (= |__ieee754_sqrtf_#in~x| __ieee754_sqrtf_~x) (exists ((__ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (bvult (bvand __ieee754_sqrtf_~ix~0 (_ bv2147483647 32)) (_ bv2139095040 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|)))) [2018-09-20 15:20:04,938 INFO L426 ceAbstractionStarter]: For program point L53-4(lines 17 82) no Hoare annotation was computed. [2018-09-20 15:20:04,938 INFO L429 ceAbstractionStarter]: At program point __ieee754_sqrtfENTRY(lines 17 82) the Hoare annotation is: true [2018-09-20 15:20:04,939 INFO L426 ceAbstractionStarter]: For program point L78(line 78) no Hoare annotation was computed. [2018-09-20 15:20:04,939 INFO L426 ceAbstractionStarter]: For program point L45(lines 45 46) no Hoare annotation was computed. [2018-09-20 15:20:04,939 INFO L426 ceAbstractionStarter]: For program point L45-2(lines 45 46) no Hoare annotation was computed. [2018-09-20 15:20:04,939 INFO L426 ceAbstractionStarter]: For program point __ieee754_sqrtfFINAL(lines 17 82) no Hoare annotation was computed. [2018-09-20 15:20:04,939 INFO L426 ceAbstractionStarter]: For program point L29(lines 29 30) no Hoare annotation was computed. [2018-09-20 15:20:04,939 INFO L426 ceAbstractionStarter]: For program point __ieee754_sqrtfEXIT(lines 17 82) no Hoare annotation was computed. [2018-09-20 15:20:04,939 INFO L426 ceAbstractionStarter]: For program point L79(line 79) no Hoare annotation was computed. [2018-09-20 15:20:04,939 INFO L426 ceAbstractionStarter]: For program point L79-1(line 79) no Hoare annotation was computed. [2018-09-20 15:20:04,940 INFO L426 ceAbstractionStarter]: For program point L79-2(line 79) no Hoare annotation was computed. [2018-09-20 15:20:04,940 INFO L426 ceAbstractionStarter]: For program point L38(lines 38 42) no Hoare annotation was computed. [2018-09-20 15:20:04,940 INFO L426 ceAbstractionStarter]: For program point L38-2(lines 38 42) no Hoare annotation was computed. [2018-09-20 15:20:04,940 INFO L426 ceAbstractionStarter]: For program point L55(lines 55 59) no Hoare annotation was computed. [2018-09-20 15:20:04,940 INFO L426 ceAbstractionStarter]: For program point L22-1(lines 22 26) no Hoare annotation was computed. [2018-09-20 15:20:04,940 INFO L426 ceAbstractionStarter]: For program point L55-2(lines 55 59) no Hoare annotation was computed. [2018-09-20 15:20:04,940 INFO L422 ceAbstractionStarter]: At program point L22-3(lines 22 26) the Hoare annotation is: (= |__ieee754_sqrtf_#in~x| __ieee754_sqrtf_~x) [2018-09-20 15:20:04,941 INFO L426 ceAbstractionStarter]: For program point L22-4(lines 22 26) no Hoare annotation was computed. [2018-09-20 15:20:04,941 INFO L426 ceAbstractionStarter]: For program point L39-1(lines 39 40) no Hoare annotation was computed. [2018-09-20 15:20:04,941 INFO L426 ceAbstractionStarter]: For program point L39-3(lines 39 40) no Hoare annotation was computed. [2018-09-20 15:20:04,942 INFO L422 ceAbstractionStarter]: At program point L39-4(lines 39 40) the Hoare annotation is: (and (exists ((__ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (= (bvand __ieee754_sqrtf_~ix~0 (_ bv2147483647 32)) __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|))) (= |__ieee754_sqrtf_#in~x| __ieee754_sqrtf_~x) (exists ((__ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (bvult (bvand __ieee754_sqrtf_~ix~0 (_ bv2147483647 32)) (_ bv2139095040 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|)))) [2018-09-20 15:20:04,942 INFO L426 ceAbstractionStarter]: For program point L39-5(lines 39 40) no Hoare annotation was computed. [2018-09-20 15:20:04,942 INFO L426 ceAbstractionStarter]: For program point L64(lines 64 73) no Hoare annotation was computed. [2018-09-20 15:20:04,942 INFO L426 ceAbstractionStarter]: For program point L23(line 23) no Hoare annotation was computed. [2018-09-20 15:20:04,942 INFO L426 ceAbstractionStarter]: For program point L23-1(line 23) no Hoare annotation was computed. [2018-09-20 15:20:04,942 INFO L426 ceAbstractionStarter]: For program point L23-2(line 23) no Hoare annotation was computed. [2018-09-20 15:20:04,942 INFO L426 ceAbstractionStarter]: For program point L23-3(line 23) no Hoare annotation was computed. [2018-09-20 15:20:04,943 INFO L426 ceAbstractionStarter]: For program point L32(lines 32 33) no Hoare annotation was computed. [2018-09-20 15:20:04,943 INFO L426 ceAbstractionStarter]: For program point L24(line 24) no Hoare annotation was computed. [2018-09-20 15:20:04,943 INFO L426 ceAbstractionStarter]: For program point L66(lines 66 72) no Hoare annotation was computed. [2018-09-20 15:20:04,943 INFO L426 ceAbstractionStarter]: For program point L25(line 25) no Hoare annotation was computed. [2018-09-20 15:20:04,943 INFO L426 ceAbstractionStarter]: For program point L25-1(line 25) no Hoare annotation was computed. [2018-09-20 15:20:04,943 INFO L426 ceAbstractionStarter]: For program point L25-2(line 25) no Hoare annotation was computed. [2018-09-20 15:20:04,943 INFO L426 ceAbstractionStarter]: For program point L34(lines 34 35) no Hoare annotation was computed. [2018-09-20 15:20:04,944 INFO L426 ceAbstractionStarter]: For program point L76-1(lines 76 80) no Hoare annotation was computed. [2018-09-20 15:20:04,944 INFO L422 ceAbstractionStarter]: At program point L76-3(lines 76 80) the Hoare annotation is: (and (exists ((__ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (= (bvand __ieee754_sqrtf_~ix~0 (_ bv2147483647 32)) __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|))) (= |__ieee754_sqrtf_#in~x| __ieee754_sqrtf_~x) (exists ((__ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (bvult (bvand __ieee754_sqrtf_~ix~0 (_ bv2147483647 32)) (_ bv2139095040 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|)))) [2018-09-20 15:20:04,944 INFO L426 ceAbstractionStarter]: For program point L76-4(lines 76 80) no Hoare annotation was computed. [2018-09-20 15:20:04,944 INFO L426 ceAbstractionStarter]: For program point L68(lines 68 71) no Hoare annotation was computed. [2018-09-20 15:20:04,949 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:20:04,950 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:20:04,950 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:20:04,950 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:20:04,951 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:20:04,951 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:20:04,951 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:20:04,952 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:20:04,959 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:20:04,959 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:20:04,959 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:20:04,959 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:20:04,960 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:20:04,960 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:20:04,960 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:20:04,960 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:20:04,962 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:20:04,963 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:20:04,963 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:20:04,963 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:20:04,963 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:20:04,964 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:20:04,964 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:20:04,964 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:20:04,965 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:20:04,966 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:20:04,966 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:20:04,966 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:20:04,966 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:20:04,966 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:20:04,967 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:20:04,967 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:20:04,968 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:20:04,968 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:20:04,968 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:20:04,969 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:20:04,969 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:20:04,969 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:20:04,969 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:20:04,970 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:20:04,971 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:20:04,971 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:20:04,971 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:20:04,971 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:20:04,972 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:20:04,973 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:20:04,974 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:20:04,974 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:20:04,976 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 03:20:04 BoogieIcfgContainer [2018-09-20 15:20:04,976 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-20 15:20:04,979 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-20 15:20:04,979 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-20 15:20:04,980 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-20 15:20:04,980 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:19:46" (3/4) ... [2018-09-20 15:20:04,984 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-09-20 15:20:04,992 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_float [2018-09-20 15:20:04,992 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-09-20 15:20:04,993 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-09-20 15:20:04,993 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_sqrtf [2018-09-20 15:20:05,006 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2018-09-20 15:20:05,006 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-09-20 15:20:05,009 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-09-20 15:20:05,037 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-09-20 15:20:05,037 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\exists __ieee754_sqrtf_~ix~0 : bv32 :: ~bvand32(__ieee754_sqrtf_~ix~0, 2147483647bv32) == hx && ~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 :: ~bvult32(~bvand32(__ieee754_sqrtf_~ix~0, 2147483647bv32), 2139095040bv32) && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x)) [2018-09-20 15:20:05,038 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\exists __ieee754_sqrtf_~ix~0 : bv32 :: ~bvand32(__ieee754_sqrtf_~ix~0, 2147483647bv32) == hx && ~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 :: ~bvult32(~bvand32(__ieee754_sqrtf_~ix~0, 2147483647bv32), 2139095040bv32) && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x)) [2018-09-20 15:20:05,038 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\exists __ieee754_sqrtf_~ix~0 : bv32 :: ~bvand32(__ieee754_sqrtf_~ix~0, 2147483647bv32) == hx && ~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 :: ~bvult32(~bvand32(__ieee754_sqrtf_~ix~0, 2147483647bv32), 2139095040bv32) && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x)) [2018-09-20 15:20:05,083 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-09-20 15:20:05,083 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-20 15:20:05,084 INFO L168 Benchmark]: Toolchain (without parser) took 20331.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.2 MB). Free memory was 953.2 MB in the beginning and 976.4 MB in the end (delta: -23.2 MB). Peak memory consumption was 132.0 MB. Max. memory is 11.5 GB. [2018-09-20 15:20:05,085 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 15:20:05,086 INFO L168 Benchmark]: CACSL2BoogieTranslator took 395.17 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 942.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-09-20 15:20:05,086 INFO L168 Benchmark]: Boogie Preprocessor took 93.33 ms. Allocated memory is still 1.0 GB. Free memory was 942.5 MB in the beginning and 937.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-09-20 15:20:05,087 INFO L168 Benchmark]: RCFGBuilder took 1484.61 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.2 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -186.5 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2018-09-20 15:20:05,088 INFO L168 Benchmark]: TraceAbstraction took 18244.32 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 976.4 MB in the end (delta: 147.2 MB). Peak memory consumption was 147.2 MB. Max. memory is 11.5 GB. [2018-09-20 15:20:05,088 INFO L168 Benchmark]: Witness Printer took 104.02 ms. Allocated memory is still 1.2 GB. Free memory is still 976.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 15:20:05,092 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 395.17 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 942.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 93.33 ms. Allocated memory is still 1.0 GB. Free memory was 942.5 MB in the beginning and 937.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1484.61 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.2 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -186.5 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 18244.32 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 976.4 MB in the end (delta: 147.2 MB). Peak memory consumption was 147.2 MB. Max. memory is 11.5 GB. * Witness Printer took 104.02 ms. Allocated memory is still 1.2 GB. Free memory is still 976.4 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: 97]: 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: 76]: Loop Invariant [2018-09-20 15:20:05,107 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:20:05,107 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:20:05,107 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:20:05,108 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:20:05,108 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:20:05,108 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:20:05,108 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:20:05,113 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:20:05,114 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:20:05,115 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:20:05,115 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:20:05,115 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:20:05,115 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:20:05,115 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:20:05,116 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:20:05,116 WARN L389 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(__ieee754_sqrtf_~ix~0, 2147483647bv32) == hx && ~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 :: ~bvult32(~bvand32(__ieee754_sqrtf_~ix~0, 2147483647bv32), 2139095040bv32) && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x)) - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: \old(x) == x - InvariantResult [Line: 39]: Loop Invariant [2018-09-20 15:20:05,117 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:20:05,117 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:20:05,117 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:20:05,118 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:20:05,118 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:20:05,118 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:20:05,118 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:20:05,118 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:20:05,122 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:20:05,122 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:20:05,123 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:20:05,123 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:20:05,123 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:20:05,123 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:20:05,126 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:20:05,126 WARN L389 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(__ieee754_sqrtf_~ix~0, 2147483647bv32) == hx && ~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 :: ~bvult32(~bvand32(__ieee754_sqrtf_~ix~0, 2147483647bv32), 2139095040bv32) && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x)) - InvariantResult [Line: 53]: Loop Invariant [2018-09-20 15:20:05,127 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:20:05,127 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:20:05,127 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:20:05,127 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:20:05,131 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:20:05,131 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:20:05,131 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:20:05,131 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:20:05,132 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:20:05,132 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:20:05,135 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:20:05,136 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:20:05,136 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:20:05,136 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:20:05,136 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:20:05,136 WARN L389 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(__ieee754_sqrtf_~ix~0, 2147483647bv32) == hx && ~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 :: ~bvult32(~bvand32(__ieee754_sqrtf_~ix~0, 2147483647bv32), 2139095040bv32) && ~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, 63 locations, 1 error locations. SAFE Result, 18.1s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 12.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.4s HoareAnnotationTime, HoareTripleCheckerStatistics: 180 SDtfs, 200 SDslu, 556 SDs, 0 SdLazy, 154 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 88 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 9.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=63occurred 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 12 LocationsWithAnnotation, 14 PreInvPairs, 20 NumberOfFragments, 163 HoareAnnotationTreeSize, 14 FomulaSimplifications, 46 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 12 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 4.5s InterpolantComputationTime, 79 NumberOfCodeBlocks, 79 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 76 ConstructedInterpolants, 4 QuantifiedInterpolants, 10200 SizeOfPredicates, 12 NumberOfNonLiveVariables, 187 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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...