/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/float-newlib/float_req_bl_0730b_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_0730b_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 9c71a459772bdb184fdc6408fbdfc05dbcf613bc .............................................................................................................................................................................................................................................................................................. 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_0730b_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 9c71a459772bdb184fdc6408fbdfc05dbcf613bc ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 15:19:20,930 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 15:19:20,932 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 15:19:20,950 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 15:19:20,950 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 15:19:20,951 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 15:19:20,953 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 15:19:20,955 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 15:19:20,957 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 15:19:20,957 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 15:19:20,958 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 15:19:20,959 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 15:19:20,960 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 15:19:20,961 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 15:19:20,964 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 15:19:20,965 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 15:19:20,966 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 15:19:20,972 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 15:19:20,975 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 15:19:20,978 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 15:19:20,983 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 15:19:20,985 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 15:19:20,990 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 15:19:20,990 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 15:19:20,990 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 15:19:20,991 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 15:19:20,994 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 15:19:20,995 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 15:19:20,996 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 15:19:20,997 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 15:19:20,997 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 15:19:20,998 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 15:19:20,998 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 15:19:20,998 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 15:19:20,999 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 15:19:21,000 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 15:19:21,000 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-09-20 15:19:21,020 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 15:19:21,021 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 15:19:21,021 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 15:19:21,022 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 15:19:21,022 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 15:19:21,022 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 15:19:21,023 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 15:19:21,023 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 15:19:21,023 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 15:19:21,023 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-20 15:19:21,023 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 15:19:21,024 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 15:19:21,024 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 15:19:21,024 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 15:19:21,024 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 15:19:21,024 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 15:19:21,024 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 15:19:21,025 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 15:19:21,025 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 15:19:21,025 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 15:19:21,025 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 15:19:21,025 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 15:19:21,026 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 15:19:21,026 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 15:19:21,026 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 15:19:21,026 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 15:19:21,026 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-09-20 15:19:21,026 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 15:19:21,027 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-20 15:19:21,027 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 -> 9c71a459772bdb184fdc6408fbdfc05dbcf613bc [2018-09-20 15:19:21,085 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 15:19:21,104 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 15:19:21,109 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 15:19:21,111 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 15:19:21,112 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 15:19:21,113 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0730b_true-unreach-call.c [2018-09-20 15:19:21,491 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f90def0b/905c37f03b5549b3bc344537b357b9e2/FLAG4641220de [2018-09-20 15:19:21,663 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 15:19:21,664 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0730b_true-unreach-call.c [2018-09-20 15:19:21,671 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f90def0b/905c37f03b5549b3bc344537b357b9e2/FLAG4641220de [2018-09-20 15:19:21,687 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f90def0b/905c37f03b5549b3bc344537b357b9e2 [2018-09-20 15:19:21,691 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 15:19:21,694 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 15:19:21,695 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 15:19:21,695 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 15:19:21,702 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 15:19:21,703 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:19:21" (1/1) ... [2018-09-20 15:19:21,706 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24c39906 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:19:21, skipping insertion in model container [2018-09-20 15:19:21,706 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:19:21" (1/1) ... [2018-09-20 15:19:21,718 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 15:19:21,930 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:19:21,950 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 15:19:21,992 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:19:22,037 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:19:22 WrapperNode [2018-09-20 15:19:22,038 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 15:19:22,038 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 15:19:22,039 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 15:19:22,039 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 15:19:22,051 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:19:22" (1/1) ... [2018-09-20 15:19:22,051 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:19:22" (1/1) ... [2018-09-20 15:19:22,062 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:19:22" (1/1) ... [2018-09-20 15:19:22,062 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:19:22" (1/1) ... [2018-09-20 15:19:22,071 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:19:22" (1/1) ... [2018-09-20 15:19:22,081 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:19:22" (1/1) ... [2018-09-20 15:19:22,089 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:19:22" (1/1) ... [2018-09-20 15:19:22,093 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 15:19:22,094 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 15:19:22,101 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 15:19:22,101 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 15:19:22,103 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:19:22" (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 15:19:22,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 15:19:22,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 15:19:22,231 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2018-09-20 15:19:22,231 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-09-20 15:19:22,232 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 15:19:22,232 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 15:19:22,232 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-09-20 15:19:22,232 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2018-09-20 15:19:22,232 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-20 15:19:22,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-09-20 15:19:22,233 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-09-20 15:19:22,233 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-20 15:19:22,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-09-20 15:19:22,233 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-09-20 15:19:22,233 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-09-20 15:19:22,233 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 15:19:22,233 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 15:19:22,233 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 15:19:22,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-09-20 15:19:22,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-09-20 15:19:22,897 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 15:19:22,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:19:22 BoogieIcfgContainer [2018-09-20 15:19:22,898 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 15:19:22,899 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 15:19:22,899 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 15:19:22,902 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 15:19:22,903 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 03:19:21" (1/3) ... [2018-09-20 15:19:22,904 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7505b87f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:19:22, skipping insertion in model container [2018-09-20 15:19:22,904 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:19:22" (2/3) ... [2018-09-20 15:19:22,904 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7505b87f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:19:22, skipping insertion in model container [2018-09-20 15:19:22,904 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:19:22" (3/3) ... [2018-09-20 15:19:22,906 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0730b_true-unreach-call.c [2018-09-20 15:19:22,917 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 15:19:22,926 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-20 15:19:22,975 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 15:19:22,976 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 15:19:22,976 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 15:19:22,976 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 15:19:22,976 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 15:19:22,976 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 15:19:22,976 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 15:19:22,976 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 15:19:22,977 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 15:19:22,997 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states. [2018-09-20 15:19:23,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-09-20 15:19:23,005 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:19:23,006 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:19:23,008 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:19:23,013 INFO L82 PathProgramCache]: Analyzing trace with hash -1880525160, now seen corresponding path program 1 times [2018-09-20 15:19:23,016 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-20 15:19:23,017 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-20 15:19:23,063 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:19:23,063 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:19:23,063 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:19:23,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:19:23,158 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 15:19:23,161 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:19:23,161 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-20 15:19:23,165 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-20 15:19:23,177 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-20 15:19:23,177 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 15:19:23,180 INFO L87 Difference]: Start difference. First operand 76 states. Second operand 2 states. [2018-09-20 15:19:23,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:19:23,209 INFO L93 Difference]: Finished difference Result 144 states and 185 transitions. [2018-09-20 15:19:23,210 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-20 15:19:23,211 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 17 [2018-09-20 15:19:23,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:19:23,223 INFO L225 Difference]: With dead ends: 144 [2018-09-20 15:19:23,223 INFO L226 Difference]: Without dead ends: 72 [2018-09-20 15:19:23,227 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 15:19:23,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2018-09-20 15:19:23,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2018-09-20 15:19:23,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2018-09-20 15:19:23,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 83 transitions. [2018-09-20 15:19:23,274 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 83 transitions. Word has length 17 [2018-09-20 15:19:23,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:19:23,275 INFO L480 AbstractCegarLoop]: Abstraction has 72 states and 83 transitions. [2018-09-20 15:19:23,275 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-20 15:19:23,275 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 83 transitions. [2018-09-20 15:19:23,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-09-20 15:19:23,277 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:19:23,277 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] [2018-09-20 15:19:23,277 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:19:23,278 INFO L82 PathProgramCache]: Analyzing trace with hash -355409211, now seen corresponding path program 1 times [2018-09-20 15:19:23,278 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-09-20 15:19:23,278 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-09-20 15:19:23,279 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:19:23,279 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:19:23,279 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-20 15:19:23,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 15:19:23,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-09-20 15:19:23,446 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-20 15:19:23,496 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 03:19:23 BoogieIcfgContainer [2018-09-20 15:19:23,496 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-20 15:19:23,497 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-20 15:19:23,497 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-20 15:19:23,498 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-20 15:19:23,499 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:19:22" (3/4) ... [2018-09-20 15:19:23,504 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-09-20 15:19:23,504 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-20 15:19:23,505 INFO L168 Benchmark]: Toolchain (without parser) took 1813.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.3 MB). Free memory was 946.5 MB in the beginning and 1.1 GB in the end (delta: -150.8 MB). Peak memory consumption was 6.5 MB. Max. memory is 11.5 GB. [2018-09-20 15:19:23,509 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 15:19:23,510 INFO L168 Benchmark]: CACSL2BoogieTranslator took 342.89 ms. Allocated memory is still 1.0 GB. Free memory was 946.5 MB in the beginning and 935.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-09-20 15:19:23,512 INFO L168 Benchmark]: Boogie Preprocessor took 54.97 ms. Allocated memory is still 1.0 GB. Free memory was 935.7 MB in the beginning and 930.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-09-20 15:19:23,514 INFO L168 Benchmark]: RCFGBuilder took 803.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.3 MB). Free memory was 930.4 MB in the beginning and 1.1 GB in the end (delta: -193.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. [2018-09-20 15:19:23,516 INFO L168 Benchmark]: TraceAbstraction took 597.68 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.9 MB). Peak memory consumption was 26.9 MB. Max. memory is 11.5 GB. [2018-09-20 15:19:23,517 INFO L168 Benchmark]: Witness Printer took 7.26 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 15:19:23,524 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 342.89 ms. Allocated memory is still 1.0 GB. Free memory was 946.5 MB in the beginning and 935.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 54.97 ms. Allocated memory is still 1.0 GB. Free memory was 935.7 MB in the beginning and 930.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 803.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 157.3 MB). Free memory was 930.4 MB in the beginning and 1.1 GB in the end (delta: -193.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 597.68 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.9 MB). Peak memory consumption was 26.9 MB. Max. memory is 11.5 GB. * Witness Printer took 7.26 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 106]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 105, overapproximation of bitwiseAnd at line 24, overapproximation of someBinaryArithmeticFLOAToperation at line 27. Possible FailurePath: [L12] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; VAL [\old(one_sqrt)=6442450949, \old(tiny_sqrt)=6442450947, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L101] float x = 0.0f; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=0] [L102] CALL, EXPR __ieee754_sqrtf(x) VAL [\old(x)=0, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L15] float z; [L16] __uint32_t r, hx; [L17] __int32_t ix, s, q, m, t, i; VAL [\old(x)=0, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=0] [L20] FCALL ieee_float_shape_type gf_u; VAL [\old(x)=0, gf_u={6442450946:0}, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=0] [L21] FCALL gf_u.value = (x) VAL [\old(x)=0, gf_u={6442450946:0}, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=0] [L22] EXPR, FCALL gf_u.word VAL [\old(x)=0, gf_u={6442450946:0}, gf_u.word=6442450944, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=0] [L22] (ix) = gf_u.word VAL [\old(x)=0, gf_u={6442450946:0}, gf_u.word=6442450944, ix=-2147483648, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=0] [L22] FCALL (ix) = gf_u.word VAL [(ix) = gf_u.word=6442450951, \old(x)=0, gf_u={6442450946:0}, gf_u.word=6442450944, ix=-2147483648, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=0] [L23] COND FALSE !(0) VAL [\old(x)=0, ix=-2147483648, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=0] [L24] hx = ix & 0x7fffffff VAL [\old(x)=0, ix=-2147483648, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=0] [L26] COND TRUE !((hx) < 0x7f800000L) [L27] RET return x * x + x; VAL [\old(x)=0, hx=2139095040, ix=-2147483648, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=0] [L102] EXPR __ieee754_sqrtf(x) VAL [__ieee754_sqrtf(x)=6442450948, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=0] [L102] float res = __ieee754_sqrtf(x); [L105] EXPR res == 0.0f && __signbit_float(res) == 0 VAL [one_sqrt=1, res=6442450948, res == 0.0f && __signbit_float(res) == 0=0, tiny_sqrt=1/1000000000000000000000000000000, x=0] [L105] COND FALSE, EXPR !(res == 0.0f && __signbit_float(res) == 0) VAL [one_sqrt=1, res=6442450948, res == 0.0f && __signbit_float(res) == 0=0, tiny_sqrt=1/1000000000000000000000000000000, x=0] [L105] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L106] __VERIFIER_error() VAL [one_sqrt=1, res=6442450948, tiny_sqrt=1/1000000000000000000000000000000, x=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 76 locations, 1 error locations. UNSAFE Result, 0.5s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 87 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=76occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 43 NumberOfCodeBlocks, 43 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 256 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-40ef509 [2018-09-20 15:19:25,858 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-20 15:19:25,860 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-20 15:19:25,872 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-20 15:19:25,873 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-20 15:19:25,874 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-20 15:19:25,875 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-20 15:19:25,877 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-20 15:19:25,878 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-20 15:19:25,879 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-20 15:19:25,880 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-20 15:19:25,880 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-20 15:19:25,881 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-20 15:19:25,882 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-20 15:19:25,883 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-20 15:19:25,884 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-20 15:19:25,885 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-20 15:19:25,887 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-20 15:19:25,889 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-20 15:19:25,891 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-20 15:19:25,892 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-20 15:19:25,893 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-20 15:19:25,896 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-20 15:19:25,896 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-20 15:19:25,896 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-20 15:19:25,897 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-20 15:19:25,898 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-20 15:19:25,899 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-20 15:19:25,900 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-20 15:19:25,901 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-20 15:19:25,902 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-20 15:19:25,902 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-20 15:19:25,903 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-20 15:19:25,903 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-20 15:19:25,904 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-20 15:19:25,905 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-20 15:19:25,905 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-09-20 15:19:25,921 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-20 15:19:25,921 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-20 15:19:25,922 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-20 15:19:25,923 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-20 15:19:25,923 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-20 15:19:25,924 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-20 15:19:25,924 INFO L133 SettingsManager]: * Use SBE=true [2018-09-20 15:19:25,924 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-20 15:19:25,924 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-20 15:19:25,924 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-20 15:19:25,925 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-20 15:19:25,925 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-20 15:19:25,925 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-20 15:19:25,925 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-20 15:19:25,926 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-20 15:19:25,926 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-20 15:19:25,926 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-20 15:19:25,926 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-20 15:19:25,926 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-20 15:19:25,927 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-20 15:19:25,927 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-20 15:19:25,927 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-20 15:19:25,927 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-20 15:19:25,928 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-20 15:19:25,928 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-20 15:19:25,928 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-20 15:19:25,928 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-20 15:19:25,929 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-20 15:19:25,929 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-20 15:19:25,929 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-20 15:19:25,929 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-20 15:19:25,929 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 -> 9c71a459772bdb184fdc6408fbdfc05dbcf613bc [2018-09-20 15:19:25,983 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-20 15:19:25,997 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-20 15:19:26,001 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-20 15:19:26,003 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-20 15:19:26,003 INFO L276 PluginConnector]: CDTParser initialized [2018-09-20 15:19:26,007 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-newlib/float_req_bl_0730b_true-unreach-call.c [2018-09-20 15:19:26,387 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ecacf986/b76e150e61494cf3a2f41496e1fa30fa/FLAG1f6117763 [2018-09-20 15:19:26,579 INFO L277 CDTParser]: Found 1 translation units. [2018-09-20 15:19:26,580 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-newlib/float_req_bl_0730b_true-unreach-call.c [2018-09-20 15:19:26,587 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ecacf986/b76e150e61494cf3a2f41496e1fa30fa/FLAG1f6117763 [2018-09-20 15:19:26,606 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3ecacf986/b76e150e61494cf3a2f41496e1fa30fa [2018-09-20 15:19:26,610 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-20 15:19:26,613 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-20 15:19:26,615 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-20 15:19:26,615 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-20 15:19:26,621 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-20 15:19:26,622 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:19:26" (1/1) ... [2018-09-20 15:19:26,625 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1df3bb67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:19:26, skipping insertion in model container [2018-09-20 15:19:26,626 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 03:19:26" (1/1) ... [2018-09-20 15:19:26,638 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-20 15:19:26,868 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:19:26,894 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-20 15:19:26,938 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-20 15:19:26,972 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:19:26 WrapperNode [2018-09-20 15:19:26,973 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-20 15:19:26,973 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-20 15:19:26,974 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-20 15:19:26,974 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-20 15:19:26,988 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:19:26" (1/1) ... [2018-09-20 15:19:26,988 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:19:26" (1/1) ... [2018-09-20 15:19:27,003 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:19:26" (1/1) ... [2018-09-20 15:19:27,003 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:19:26" (1/1) ... [2018-09-20 15:19:27,013 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:19:26" (1/1) ... [2018-09-20 15:19:27,021 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:19:26" (1/1) ... [2018-09-20 15:19:27,024 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:19:26" (1/1) ... [2018-09-20 15:19:27,028 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-20 15:19:27,029 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-20 15:19:27,029 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-20 15:19:27,029 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-20 15:19:27,030 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:19:26" (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 15:19:27,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-20 15:19:27,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-20 15:19:27,185 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2018-09-20 15:19:27,185 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-09-20 15:19:27,185 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-20 15:19:27,185 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-20 15:19:27,186 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-09-20 15:19:27,186 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2018-09-20 15:19:27,186 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-09-20 15:19:27,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-09-20 15:19:27,186 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-09-20 15:19:27,187 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-09-20 15:19:27,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-09-20 15:19:27,187 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-09-20 15:19:27,187 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-09-20 15:19:27,188 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-20 15:19:27,188 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-20 15:19:27,188 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-20 15:19:27,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-09-20 15:19:27,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4 [2018-09-20 15:19:27,624 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:19:27,645 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:19:28,391 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:19:28,410 WARN L312 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-09-20 15:19:28,422 INFO L365 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-20 15:19:28,423 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:19:28 BoogieIcfgContainer [2018-09-20 15:19:28,423 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-20 15:19:28,424 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-20 15:19:28,425 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-20 15:19:28,428 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-20 15:19:28,429 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 03:19:26" (1/3) ... [2018-09-20 15:19:28,430 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69c9df1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:19:28, skipping insertion in model container [2018-09-20 15:19:28,430 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 03:19:26" (2/3) ... [2018-09-20 15:19:28,430 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69c9df1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 03:19:28, skipping insertion in model container [2018-09-20 15:19:28,430 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:19:28" (3/3) ... [2018-09-20 15:19:28,433 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0730b_true-unreach-call.c [2018-09-20 15:19:28,444 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-20 15:19:28,454 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-20 15:19:28,507 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-20 15:19:28,508 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-20 15:19:28,508 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-20 15:19:28,508 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-20 15:19:28,509 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-20 15:19:28,509 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-20 15:19:28,509 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-20 15:19:28,509 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-20 15:19:28,509 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-20 15:19:28,532 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states. [2018-09-20 15:19:28,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-09-20 15:19:28,539 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:19:28,541 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:19:28,543 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:19:28,549 INFO L82 PathProgramCache]: Analyzing trace with hash -1880525160, now seen corresponding path program 1 times [2018-09-20 15:19:28,554 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:19:28,555 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 15:19:28,562 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:19:28,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:19:28,709 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:19:28,729 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 15:19:28,729 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:19:28,746 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:19:28,747 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-20 15:19:28,751 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-09-20 15:19:28,764 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-09-20 15:19:28,765 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 15:19:28,768 INFO L87 Difference]: Start difference. First operand 76 states. Second operand 2 states. [2018-09-20 15:19:28,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:19:28,798 INFO L93 Difference]: Finished difference Result 144 states and 185 transitions. [2018-09-20 15:19:28,799 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-20 15:19:28,801 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 17 [2018-09-20 15:19:28,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:19:28,817 INFO L225 Difference]: With dead ends: 144 [2018-09-20 15:19:28,818 INFO L226 Difference]: Without dead ends: 72 [2018-09-20 15:19:28,823 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-09-20 15:19:28,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2018-09-20 15:19:28,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2018-09-20 15:19:28,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2018-09-20 15:19:28,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 83 transitions. [2018-09-20 15:19:28,875 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 83 transitions. Word has length 17 [2018-09-20 15:19:28,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:19:28,876 INFO L480 AbstractCegarLoop]: Abstraction has 72 states and 83 transitions. [2018-09-20 15:19:28,876 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-09-20 15:19:28,876 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 83 transitions. [2018-09-20 15:19:28,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-09-20 15:19:28,878 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:19:28,878 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] [2018-09-20 15:19:28,878 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:19:28,879 INFO L82 PathProgramCache]: Analyzing trace with hash -355409211, now seen corresponding path program 1 times [2018-09-20 15:19:28,880 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:19:28,880 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 15:19:28,888 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:19:29,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:19:29,022 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:19:29,116 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 15:19:29,133 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 15:19:29,133 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:19:29,158 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:19:29,236 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 15:19:29,236 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-20 15:19:29,340 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 15:19:29,349 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 15:19:29,349 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:19:29,355 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:19:29,358 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 15:19:29,359 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-20 15:19:29,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-20 15:19:29,755 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:19:29,773 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:19:29,773 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-20 15:19:29,777 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-20 15:19:29,777 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-20 15:19:29,778 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-20 15:19:29,778 INFO L87 Difference]: Start difference. First operand 72 states and 83 transitions. Second operand 9 states. [2018-09-20 15:19:31,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:19:31,981 INFO L93 Difference]: Finished difference Result 101 states and 113 transitions. [2018-09-20 15:19:31,982 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-09-20 15:19:31,982 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 26 [2018-09-20 15:19:31,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:19:31,986 INFO L225 Difference]: With dead ends: 101 [2018-09-20 15:19:31,987 INFO L226 Difference]: Without dead ends: 78 [2018-09-20 15:19:31,988 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=65, Invalid=207, Unknown=0, NotChecked=0, Total=272 [2018-09-20 15:19:31,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2018-09-20 15:19:32,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 72. [2018-09-20 15:19:32,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2018-09-20 15:19:32,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 82 transitions. [2018-09-20 15:19:32,003 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 82 transitions. Word has length 26 [2018-09-20 15:19:32,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:19:32,003 INFO L480 AbstractCegarLoop]: Abstraction has 72 states and 82 transitions. [2018-09-20 15:19:32,003 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-20 15:19:32,003 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 82 transitions. [2018-09-20 15:19:32,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-09-20 15:19:32,005 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:19:32,005 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] [2018-09-20 15:19:32,005 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:19:32,006 INFO L82 PathProgramCache]: Analyzing trace with hash -571672782, now seen corresponding path program 1 times [2018-09-20 15:19:32,006 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:19:32,006 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 15:19:32,011 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:19:32,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:19:32,057 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:19:32,151 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 15:19:32,151 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:19:32,165 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:19:32,165 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-09-20 15:19:32,166 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-09-20 15:19:32,166 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-09-20 15:19:32,167 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-09-20 15:19:32,168 INFO L87 Difference]: Start difference. First operand 72 states and 82 transitions. Second operand 7 states. [2018-09-20 15:19:32,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:19:32,897 INFO L93 Difference]: Finished difference Result 79 states and 89 transitions. [2018-09-20 15:19:32,898 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-20 15:19:32,898 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 27 [2018-09-20 15:19:32,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:19:32,901 INFO L225 Difference]: With dead ends: 79 [2018-09-20 15:19:32,901 INFO L226 Difference]: Without dead ends: 76 [2018-09-20 15:19:32,902 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2018-09-20 15:19:32,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2018-09-20 15:19:32,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2018-09-20 15:19:32,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2018-09-20 15:19:32,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 86 transitions. [2018-09-20 15:19:32,914 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 86 transitions. Word has length 27 [2018-09-20 15:19:32,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:19:32,915 INFO L480 AbstractCegarLoop]: Abstraction has 76 states and 86 transitions. [2018-09-20 15:19:32,915 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-09-20 15:19:32,915 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 86 transitions. [2018-09-20 15:19:32,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-09-20 15:19:32,917 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:19:32,917 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] [2018-09-20 15:19:32,917 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:19:32,918 INFO L82 PathProgramCache]: Analyzing trace with hash 569138537, now seen corresponding path program 1 times [2018-09-20 15:19:32,918 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:19:32,918 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-09-20 15:19:32,930 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:19:33,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:19:33,177 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:19:33,205 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 15:19:33,209 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 15:19:33,210 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:19:33,216 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:19:33,226 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 15:19:33,227 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-20 15:19:33,249 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 15:19:33,262 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 15:19:33,263 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:19:33,270 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:19:33,273 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 15:19:33,274 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-20 15:19:33,401 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 15:19:33,402 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:19:33,421 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:19:33,421 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-20 15:19:33,421 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-20 15:19:33,422 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-20 15:19:33,422 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-09-20 15:19:33,423 INFO L87 Difference]: Start difference. First operand 76 states and 86 transitions. Second operand 9 states. [2018-09-20 15:19:34,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:19:34,805 INFO L93 Difference]: Finished difference Result 101 states and 111 transitions. [2018-09-20 15:19:34,811 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-09-20 15:19:34,811 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 28 [2018-09-20 15:19:34,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:19:34,813 INFO L225 Difference]: With dead ends: 101 [2018-09-20 15:19:34,813 INFO L226 Difference]: Without dead ends: 44 [2018-09-20 15:19:34,814 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=65, Invalid=207, Unknown=0, NotChecked=0, Total=272 [2018-09-20 15:19:34,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-09-20 15:19:34,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2018-09-20 15:19:34,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-09-20 15:19:34,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 43 transitions. [2018-09-20 15:19:34,820 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 43 transitions. Word has length 28 [2018-09-20 15:19:34,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:19:34,821 INFO L480 AbstractCegarLoop]: Abstraction has 44 states and 43 transitions. [2018-09-20 15:19:34,821 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-20 15:19:34,821 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 43 transitions. [2018-09-20 15:19:34,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-09-20 15:19:34,824 INFO L368 BasicCegarLoop]: Found error trace [2018-09-20 15:19:34,824 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-20 15:19:34,824 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-20 15:19:34,825 INFO L82 PathProgramCache]: Analyzing trace with hash 1994779156, now seen corresponding path program 1 times [2018-09-20 15:19:34,825 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-20 15:19:34,825 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-09-20 15:19:34,837 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-20 15:19:34,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-20 15:19:34,913 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-20 15:19:35,096 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 15:19:35,108 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 15:19:35,108 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:19:35,112 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:19:35,122 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 15:19:35,122 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:21, output treesize:21 [2018-09-20 15:19:35,155 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 15:19:35,160 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 15:19:35,160 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-09-20 15:19:35,164 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-09-20 15:19:35,167 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 15:19:35,168 INFO L202 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:29, output treesize:9 [2018-09-20 15:19:35,364 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 15:19:35,365 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-20 15:19:35,374 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-20 15:19:35,375 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2018-09-20 15:19:35,375 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-20 15:19:35,375 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-20 15:19:35,376 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2018-09-20 15:19:35,376 INFO L87 Difference]: Start difference. First operand 44 states and 43 transitions. Second operand 14 states. [2018-09-20 15:19:36,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-20 15:19:36,168 INFO L93 Difference]: Finished difference Result 44 states and 43 transitions. [2018-09-20 15:19:36,169 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-20 15:19:36,169 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 43 [2018-09-20 15:19:36,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-20 15:19:36,170 INFO L225 Difference]: With dead ends: 44 [2018-09-20 15:19:36,170 INFO L226 Difference]: Without dead ends: 0 [2018-09-20 15:19:36,172 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=81, Invalid=471, Unknown=0, NotChecked=0, Total=552 [2018-09-20 15:19:36,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-20 15:19:36,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-20 15:19:36,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-20 15:19:36,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-20 15:19:36,173 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 43 [2018-09-20 15:19:36,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-20 15:19:36,174 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-20 15:19:36,174 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-20 15:19:36,174 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-20 15:19:36,174 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-20 15:19:36,180 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-20 15:19:36,470 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-09-20 15:19:36,471 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-09-20 15:19:36,471 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-09-20 15:19:36,471 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-09-20 15:19:36,472 INFO L429 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-09-20 15:19:36,472 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-09-20 15:19:36,472 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-09-20 15:19:36,472 INFO L429 ceAbstractionStarter]: At program point mainENTRY(lines 93 111) the Hoare annotation is: true [2018-09-20 15:19:36,473 INFO L426 ceAbstractionStarter]: For program point mainEXIT(lines 93 111) no Hoare annotation was computed. [2018-09-20 15:19:36,473 INFO L426 ceAbstractionStarter]: For program point mainFINAL(lines 93 111) no Hoare annotation was computed. [2018-09-20 15:19:36,473 INFO L426 ceAbstractionStarter]: For program point L106(line 106) no Hoare annotation was computed. [2018-09-20 15:19:36,473 INFO L426 ceAbstractionStarter]: For program point L105(line 105) no Hoare annotation was computed. [2018-09-20 15:19:36,473 INFO L422 ceAbstractionStarter]: At program point L105-1(line 105) the Hoare annotation is: (and (= (_ +zero 8 24) main_~x~0) (= (_ +zero 8 24) main_~res~0) |main_#t~short9|) [2018-09-20 15:19:36,473 INFO L426 ceAbstractionStarter]: For program point L105-2(line 105) no Hoare annotation was computed. [2018-09-20 15:19:36,473 INFO L426 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 106) no Hoare annotation was computed. [2018-09-20 15:19:36,474 INFO L422 ceAbstractionStarter]: At program point L102(line 102) the Hoare annotation is: (= (_ +zero 8 24) main_~x~0) [2018-09-20 15:19:36,474 INFO L426 ceAbstractionStarter]: For program point L102-1(line 102) no Hoare annotation was computed. [2018-09-20 15:19:36,474 INFO L426 ceAbstractionStarter]: For program point L105-4(lines 105 108) no Hoare annotation was computed. [2018-09-20 15:19:36,474 INFO L426 ceAbstractionStarter]: For program point L35-2(lines 35 39) no Hoare annotation was computed. [2018-09-20 15:19:36,474 INFO L426 ceAbstractionStarter]: For program point L52(lines 52 56) no Hoare annotation was computed. [2018-09-20 15:19:36,474 INFO L426 ceAbstractionStarter]: For program point L19-1(lines 19 23) no Hoare annotation was computed. [2018-09-20 15:19:36,474 INFO L426 ceAbstractionStarter]: For program point L52-2(lines 52 56) no Hoare annotation was computed. [2018-09-20 15:19:36,475 INFO L422 ceAbstractionStarter]: At program point L19-3(lines 19 23) the Hoare annotation is: (= |__ieee754_sqrtf_#in~x| __ieee754_sqrtf_~x) [2018-09-20 15:19:36,475 INFO L426 ceAbstractionStarter]: For program point L19-4(lines 19 23) no Hoare annotation was computed. [2018-09-20 15:19:36,475 INFO L426 ceAbstractionStarter]: For program point L36-1(lines 36 37) no Hoare annotation was computed. [2018-09-20 15:19:36,475 INFO L426 ceAbstractionStarter]: For program point L36-3(lines 36 37) no Hoare annotation was computed. [2018-09-20 15:19:36,475 INFO L422 ceAbstractionStarter]: At program point L36-4(lines 36 37) the Hoare annotation is: (and (exists ((__ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (not (= (bvand __ieee754_sqrtf_~ix~0 (_ bv2147483647 32)) (_ bv0 32))) (= (fp ((_ extract 31 31) __ieee754_sqrtf_~ix~0) ((_ extract 30 23) __ieee754_sqrtf_~ix~0) ((_ extract 22 0) __ieee754_sqrtf_~ix~0)) |__ieee754_sqrtf_#in~x|))) (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)) [2018-09-20 15:19:36,475 INFO L426 ceAbstractionStarter]: For program point L36-5(lines 36 37) no Hoare annotation was computed. [2018-09-20 15:19:36,476 INFO L426 ceAbstractionStarter]: For program point L61(lines 61 70) no Hoare annotation was computed. [2018-09-20 15:19:36,476 INFO L426 ceAbstractionStarter]: For program point L20(line 20) no Hoare annotation was computed. [2018-09-20 15:19:36,476 INFO L426 ceAbstractionStarter]: For program point L20-1(line 20) no Hoare annotation was computed. [2018-09-20 15:19:36,476 INFO L426 ceAbstractionStarter]: For program point L20-2(line 20) no Hoare annotation was computed. [2018-09-20 15:19:36,476 INFO L426 ceAbstractionStarter]: For program point L20-3(line 20) no Hoare annotation was computed. [2018-09-20 15:19:36,476 INFO L429 ceAbstractionStarter]: At program point __ieee754_sqrtfENTRY(lines 14 79) the Hoare annotation is: true [2018-09-20 15:19:36,476 INFO L426 ceAbstractionStarter]: For program point __ieee754_sqrtfFINAL(lines 14 79) no Hoare annotation was computed. [2018-09-20 15:19:36,476 INFO L426 ceAbstractionStarter]: For program point L29(lines 29 30) no Hoare annotation was computed. [2018-09-20 15:19:36,477 INFO L426 ceAbstractionStarter]: For program point L21(line 21) no Hoare annotation was computed. [2018-09-20 15:19:36,477 INFO L426 ceAbstractionStarter]: For program point __ieee754_sqrtfEXIT(lines 14 79) no Hoare annotation was computed. [2018-09-20 15:19:36,477 INFO L426 ceAbstractionStarter]: For program point L63(lines 63 69) no Hoare annotation was computed. [2018-09-20 15:19:36,477 INFO L426 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-09-20 15:19:36,477 INFO L426 ceAbstractionStarter]: For program point L22-1(line 22) no Hoare annotation was computed. [2018-09-20 15:19:36,477 INFO L426 ceAbstractionStarter]: For program point L22-2(line 22) no Hoare annotation was computed. [2018-09-20 15:19:36,477 INFO L426 ceAbstractionStarter]: For program point L31(lines 31 32) no Hoare annotation was computed. [2018-09-20 15:19:36,477 INFO L426 ceAbstractionStarter]: For program point L73-1(lines 73 77) no Hoare annotation was computed. [2018-09-20 15:19:36,478 INFO L422 ceAbstractionStarter]: At program point L73-3(lines 73 77) 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|))) (exists ((__ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (not (= (bvand __ieee754_sqrtf_~ix~0 (_ bv2147483647 32)) (_ bv0 32))) (= (fp ((_ extract 31 31) __ieee754_sqrtf_~ix~0) ((_ extract 30 23) __ieee754_sqrtf_~ix~0) ((_ extract 22 0) __ieee754_sqrtf_~ix~0)) |__ieee754_sqrtf_#in~x|))) (= |__ieee754_sqrtf_#in~x| __ieee754_sqrtf_~x)) [2018-09-20 15:19:36,478 INFO L426 ceAbstractionStarter]: For program point L73-4(lines 73 77) no Hoare annotation was computed. [2018-09-20 15:19:36,478 INFO L426 ceAbstractionStarter]: For program point L65(lines 65 68) no Hoare annotation was computed. [2018-09-20 15:19:36,478 INFO L426 ceAbstractionStarter]: For program point L74(line 74) no Hoare annotation was computed. [2018-09-20 15:19:36,478 INFO L426 ceAbstractionStarter]: For program point L74-1(line 74) no Hoare annotation was computed. [2018-09-20 15:19:36,478 INFO L426 ceAbstractionStarter]: For program point L74-2(line 74) no Hoare annotation was computed. [2018-09-20 15:19:36,478 INFO L426 ceAbstractionStarter]: For program point L74-3(line 74) no Hoare annotation was computed. [2018-09-20 15:19:36,479 INFO L426 ceAbstractionStarter]: For program point L50-1(lines 50 59) no Hoare annotation was computed. [2018-09-20 15:19:36,479 INFO L422 ceAbstractionStarter]: At program point L50-3(lines 50 59) 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|))) (exists ((__ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (not (= (bvand __ieee754_sqrtf_~ix~0 (_ bv2147483647 32)) (_ bv0 32))) (= (fp ((_ extract 31 31) __ieee754_sqrtf_~ix~0) ((_ extract 30 23) __ieee754_sqrtf_~ix~0) ((_ extract 22 0) __ieee754_sqrtf_~ix~0)) |__ieee754_sqrtf_#in~x|))) (= |__ieee754_sqrtf_#in~x| __ieee754_sqrtf_~x)) [2018-09-20 15:19:36,479 INFO L426 ceAbstractionStarter]: For program point L50-4(lines 14 79) no Hoare annotation was computed. [2018-09-20 15:19:36,479 INFO L426 ceAbstractionStarter]: For program point L75(line 75) no Hoare annotation was computed. [2018-09-20 15:19:36,479 INFO L426 ceAbstractionStarter]: For program point L42(lines 42 43) no Hoare annotation was computed. [2018-09-20 15:19:36,479 INFO L426 ceAbstractionStarter]: For program point L42-2(lines 42 43) no Hoare annotation was computed. [2018-09-20 15:19:36,479 INFO L426 ceAbstractionStarter]: For program point L26(lines 26 27) no Hoare annotation was computed. [2018-09-20 15:19:36,480 INFO L426 ceAbstractionStarter]: For program point L76(line 76) no Hoare annotation was computed. [2018-09-20 15:19:36,480 INFO L426 ceAbstractionStarter]: For program point L76-1(line 76) no Hoare annotation was computed. [2018-09-20 15:19:36,480 INFO L426 ceAbstractionStarter]: For program point L76-2(line 76) no Hoare annotation was computed. [2018-09-20 15:19:36,480 INFO L426 ceAbstractionStarter]: For program point L35(lines 35 39) no Hoare annotation was computed. [2018-09-20 15:19:36,480 INFO L426 ceAbstractionStarter]: For program point __signbit_floatFINAL(lines 81 91) no Hoare annotation was computed. [2018-09-20 15:19:36,480 INFO L426 ceAbstractionStarter]: For program point L87(line 87) no Hoare annotation was computed. [2018-09-20 15:19:36,480 INFO L426 ceAbstractionStarter]: For program point L86(line 86) no Hoare annotation was computed. [2018-09-20 15:19:36,481 INFO L426 ceAbstractionStarter]: For program point L87-1(line 87) no Hoare annotation was computed. [2018-09-20 15:19:36,481 INFO L426 ceAbstractionStarter]: For program point L85(line 85) no Hoare annotation was computed. [2018-09-20 15:19:36,481 INFO L426 ceAbstractionStarter]: For program point L87-2(line 87) no Hoare annotation was computed. [2018-09-20 15:19:36,481 INFO L426 ceAbstractionStarter]: For program point L85-1(line 85) no Hoare annotation was computed. [2018-09-20 15:19:36,481 INFO L426 ceAbstractionStarter]: For program point L85-2(line 85) no Hoare annotation was computed. [2018-09-20 15:19:36,481 INFO L426 ceAbstractionStarter]: For program point L84-1(lines 84 88) no Hoare annotation was computed. [2018-09-20 15:19:36,481 INFO L426 ceAbstractionStarter]: For program point L85-3(line 85) no Hoare annotation was computed. [2018-09-20 15:19:36,481 INFO L422 ceAbstractionStarter]: At program point L84-3(lines 84 88) the Hoare annotation is: (= |__signbit_float_#in~x| __signbit_float_~x) [2018-09-20 15:19:36,482 INFO L429 ceAbstractionStarter]: At program point __signbit_floatENTRY(lines 81 91) the Hoare annotation is: true [2018-09-20 15:19:36,482 INFO L426 ceAbstractionStarter]: For program point L84-4(lines 84 88) no Hoare annotation was computed. [2018-09-20 15:19:36,482 INFO L426 ceAbstractionStarter]: For program point __signbit_floatEXIT(lines 81 91) no Hoare annotation was computed. [2018-09-20 15:19:36,495 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:19:36,496 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:19:36,496 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:19:36,497 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:19:36,497 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:19:36,497 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:19:36,497 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:19:36,498 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:19:36,499 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:19:36,499 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:19:36,500 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:19:36,500 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:19:36,500 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:19:36,500 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:19:36,500 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:19:36,501 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:19:36,502 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:19:36,502 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:19:36,502 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:19:36,503 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:19:36,503 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:19:36,503 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:19:36,503 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:19:36,503 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:19:36,505 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:19:36,505 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:19:36,505 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:19:36,505 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:19:36,505 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:19:36,506 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:19:36,506 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:19:36,506 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:19:36,507 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:19:36,507 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:19:36,508 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:19:36,508 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:19:36,508 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:19:36,508 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:19:36,509 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:19:36,509 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:19:36,510 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:19:36,510 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:19:36,510 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:19:36,510 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:19:36,511 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:19:36,511 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:19:36,511 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:19:36,511 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:19:36,514 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 03:19:36 BoogieIcfgContainer [2018-09-20 15:19:36,514 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-20 15:19:36,515 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-09-20 15:19:36,515 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-09-20 15:19:36,515 INFO L276 PluginConnector]: Witness Printer initialized [2018-09-20 15:19:36,516 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 03:19:28" (3/4) ... [2018-09-20 15:19:36,520 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-09-20 15:19:36,527 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-09-20 15:19:36,528 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-09-20 15:19:36,528 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_sqrtf [2018-09-20 15:19:36,528 INFO L316 RCFGBacktranslator]: Ignoring RootEdge to procedure __signbit_float [2018-09-20 15:19:36,534 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2018-09-20 15:19:36,535 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-09-20 15:19:36,535 INFO L850 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-09-20 15:19:36,567 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-09-20 15:19:36,567 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-09-20 15:19:36,568 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\exists __ieee754_sqrtf_~ix~0 : bv32 :: !(~bvand32(__ieee754_sqrtf_~ix~0, 2147483647bv32) == 0bv32) && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x)) && (\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 [2018-09-20 15:19:36,569 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)) && (\exists __ieee754_sqrtf_~ix~0 : bv32 :: !(~bvand32(__ieee754_sqrtf_~ix~0, 2147483647bv32) == 0bv32) && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x))) && \old(x) == x [2018-09-20 15:19:36,569 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)) && (\exists __ieee754_sqrtf_~ix~0 : bv32 :: !(~bvand32(__ieee754_sqrtf_~ix~0, 2147483647bv32) == 0bv32) && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x))) && \old(x) == x [2018-09-20 15:19:36,640 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-09-20 15:19:36,641 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-09-20 15:19:36,642 INFO L168 Benchmark]: Toolchain (without parser) took 10031.58 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 953.2 MB in the beginning and 824.8 MB in the end (delta: 128.4 MB). Peak memory consumption was 266.8 MB. Max. memory is 11.5 GB. [2018-09-20 15:19:36,644 INFO L168 Benchmark]: CDTParser took 0.31 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 15:19:36,644 INFO L168 Benchmark]: CACSL2BoogieTranslator took 358.57 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 942.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-09-20 15:19:36,645 INFO L168 Benchmark]: Boogie Preprocessor took 54.88 ms. Allocated memory is still 1.0 GB. Free memory was 942.4 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 15:19:36,646 INFO L168 Benchmark]: RCFGBuilder took 1394.25 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -160.5 MB). Peak memory consumption was 22.2 MB. Max. memory is 11.5 GB. [2018-09-20 15:19:36,647 INFO L168 Benchmark]: TraceAbstraction took 8089.85 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 824.8 MB in the end (delta: 272.8 MB). Peak memory consumption was 272.8 MB. Max. memory is 11.5 GB. [2018-09-20 15:19:36,648 INFO L168 Benchmark]: Witness Printer took 126.01 ms. Allocated memory is still 1.2 GB. Free memory is still 824.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-09-20 15:19:36,651 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 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 358.57 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 942.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 54.88 ms. Allocated memory is still 1.0 GB. Free memory was 942.4 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 1394.25 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.4 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -160.5 MB). Peak memory consumption was 22.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 8089.85 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 824.8 MB in the end (delta: 272.8 MB). Peak memory consumption was 272.8 MB. Max. memory is 11.5 GB. * Witness Printer took 126.01 ms. Allocated memory is still 1.2 GB. Free memory is still 824.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 106]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: \old(x) == x - InvariantResult [Line: 36]: Loop Invariant [2018-09-20 15:19:36,664 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:19:36,664 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:19:36,665 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:19:36,665 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:19:36,665 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:19:36,665 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:19:36,665 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:19:36,666 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:19:36,667 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:19:36,667 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:19:36,667 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:19:36,667 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:19:36,667 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:19:36,668 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:19:36,668 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:19:36,668 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) == 0bv32) && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x)) && (\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 - InvariantResult [Line: 50]: Loop Invariant [2018-09-20 15:19:36,669 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:19:36,669 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:19:36,669 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:19:36,670 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:19:36,670 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:19:36,670 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:19:36,670 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:19:36,670 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:19:36,671 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:19:36,671 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:19:36,672 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:19:36,672 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:19:36,672 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:19:36,672 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:19:36,672 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:19:36,672 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)) && (\exists __ieee754_sqrtf_~ix~0 : bv32 :: !(~bvand32(__ieee754_sqrtf_~ix~0, 2147483647bv32) == 0bv32) && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x))) && \old(x) == x - InvariantResult [Line: 73]: Loop Invariant [2018-09-20 15:19:36,674 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:19:36,674 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:19:36,674 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:19:36,674 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:19:36,674 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:19:36,674 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:19:36,675 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:19:36,675 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:19:36,676 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:19:36,676 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:19:36,676 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:19:36,676 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:19:36,676 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:19:36,677 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:19:36,677 WARN L389 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-09-20 15:19:36,677 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)) && (\exists __ieee754_sqrtf_~ix~0 : bv32 :: !(~bvand32(__ieee754_sqrtf_~ix~0, 2147483647bv32) == 0bv32) && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x))) && \old(x) == x - InvariantResult [Line: 84]: Loop Invariant Derived loop invariant: \old(x) == x - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 76 locations, 1 error locations. SAFE Result, 7.9s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 5.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 324 SDtfs, 348 SDslu, 1286 SDs, 0 SdLazy, 401 SolverSat, 28 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 165 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 2.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=76occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 6 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 13 LocationsWithAnnotation, 19 PreInvPairs, 26 NumberOfFragments, 134 HoareAnnotationTreeSize, 19 FomulaSimplifications, 147 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 13 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 141 NumberOfCodeBlocks, 141 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 136 ConstructedInterpolants, 10 QuantifiedInterpolants, 21319 SizeOfPredicates, 29 NumberOfNonLiveVariables, 327 ConjunctsInSsa, 43 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...